Files
pbakaus_impeccable/tests/hook.test.mjs
T
Abdul WahabandCursor 35ae07339b Fix: parse Grok Build camelCase hook stdin (#646)
Grok was classified as GitHub Copilot, so the design hook skipped every
edit with no-file-path and never ran Stop. Normalize toolInput/sessionId
and treat Stop additionalContext as the Grok product.

Prepared with AI assistance.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-08-24 05:28:21 +05:00

4160 lines
174 KiB
JavaScript

/**
* Unit tests for the Impeccable design hook.
* Run: node --test tests/hook.test.mjs
*
* Exercises hook-lib.mjs through `runHook()` with an injected detector so the
* suite stays fast and detector-independent. A second block exercises the
* library helpers (config, cache, filter, render) directly.
*/
import { describe, it, beforeEach, afterEach } from 'node:test';
import assert from 'node:assert/strict';
import fs from 'node:fs';
import path from 'node:path';
import os from 'node:os';
import { execFileSync } from 'node:child_process';
import {
ENVELOPE_PREFIX,
ALLOWED_EXTS,
ACK_EXTS,
DEFAULT_CONFIG,
SENSITIVE_PATH,
GENERATED_PATH,
truthy,
getConfigPath,
getLocalConfigPath,
ensureHookGitExcludes,
readConfig,
readCache,
persistCache,
resolveCacheCwd,
bumpEditCount,
rememberFindings,
dedupeAgainstCache,
filterFindings,
renderTemplate,
renderCleanAck,
renderPendingAck,
shouldEmitAckForFile,
matchConfiguredExtension,
matchesAnyGlob,
writeAuditLog,
suppressionNotice,
parseApplyPatchPaths,
resolveTargetFiles,
resolveHarness,
normalizeHookEvent,
isStopEvent,
expandScanTargets,
parseStaticStyleImports,
coLocatedStylesheets,
runHook,
runStopHook,
commitFooterShown,
IMMEDIATE_TIER_RULES,
splitFindingsByTier,
perEditTieringActive,
ADVISORY_RULES,
isAdvisoryFinding,
payload,
extractFindingIgnoreValue,
resolveProjectPlatform,
isNativePlatform,
normalizeIgnoreValueEntries,
isScanTargetInsideProject,
} from '../skill/scripts/hook-lib.mjs';
import { normalizeIgnoreValueEntries as normalizeIgnoreValueEntriesCli } from '../cli/lib/impeccable-config.mjs';
import { detectHtml, detectText } from '../cli/engine/detect-antipatterns.mjs';
function mkTmp() {
return fs.mkdtempSync(path.join(os.tmpdir(), 'impeccable-hook-'));
}
function fakeDetector(findings) {
return {
detectText: () => findings,
detectHtml: () => findings,
};
}
function finding(id, line, extras = {}) {
return {
antipattern: id,
name: extras.name || 'Test finding',
description: extras.description || 'A test finding description.',
severity: extras.severity || 'warning',
file: extras.file || 'src/Card.tsx',
line,
snippet: extras.snippet || '<snippet>',
};
}
describe('truthy()', () => {
it('matches the documented values, case-insensitive', () => {
for (const v of ['1', 'true', 'TRUE', 'yes', 'YES', 'on', 'On']) {
assert.equal(truthy(v), true, `expected truthy("${v}")`);
}
for (const v of ['', '0', 'false', 'no', 'off', 'yep', undefined, null, 42]) {
assert.equal(truthy(v), false, `expected falsy(${JSON.stringify(v)})`);
}
});
});
describe('SENSITIVE_PATH / GENERATED_PATH', () => {
it('skips .env, .pem, id_rsa, secrets, credentials, .git', () => {
for (const p of [
'/x/.env', '/x/.env.production', '/x/server.pem', '/x/id_rsa',
'/x/id_rsa.pub', '/x/api-secret.json', '/x/client_secret.ts',
'/x/credentials.yml', '/x/.git/config',
]) {
assert.ok(SENSITIVE_PATH.test(p), `expected sensitive: ${p}`);
}
});
it('does not flag normal source files as sensitive', () => {
for (const p of [
'/x/src/Card.tsx',
'/x/app/page.html',
'/x/styles/main.css',
'/x/src/CredentialForm.tsx',
'/x/src/SecretPage.jsx',
'/x/src/secretary-dashboard.vue',
'/x/src/credentials-panel.tsx',
]) {
assert.ok(!SENSITIVE_PATH.test(p), `unexpected sensitive: ${p}`);
}
});
it('skips generated / lock / build output paths', () => {
for (const p of [
'/x/src/foo.generated.tsx', '/x/types.d.ts', '/x/bundle.min.js',
'/x/node_modules/lib/index.tsx', '/x/dist/Card.tsx', '/x/build/index.html',
'/x/pkg.lock.json', '/x/.next/server.js', '/x/coverage/report.html',
]) {
assert.ok(GENERATED_PATH.test(p), `expected generated: ${p}`);
}
});
it('skips committed build output living outside dist/', () => {
// Not every generated artifact lands in dist/. Repos commit browser
// bundles and detector copies next to source, and findings against them
// are never actionable.
for (const p of [
'/x/site/public/js/generated/counts.js',
'/x/src/generated/schema.ts',
'/x/app/generated/api.tsx',
]) {
assert.ok(GENERATED_PATH.test(p), `expected generated: ${p}`);
}
});
it('does not treat authored paths that merely mention generation as generated', () => {
for (const p of [
'/x/src/generateReport.ts',
'/x/src/generated-utils.ts',
'/x/src/components/CodeGenerator.tsx',
'/x/src/ui/regenerate-button.jsx',
]) {
assert.ok(!GENERATED_PATH.test(p), `unexpected generated: ${p}`);
}
});
});
describe('isScanTargetInsideProject()', () => {
let root;
beforeEach(() => { root = mkTmp(); });
afterEach(() => fs.rmSync(root, { recursive: true, force: true }));
it('accepts files under the project root and the root itself', () => {
const file = path.join(root, 'src', 'Card.tsx');
fs.mkdirSync(path.dirname(file), { recursive: true });
fs.writeFileSync(file, 'noop');
assert.equal(isScanTargetInsideProject(file, root), true);
assert.equal(isScanTargetInsideProject(root, root), true);
});
it('rejects siblings, temp scratchpads, and empty inputs', () => {
const scratch = mkTmp();
try {
const outside = path.join(scratch, 'landing.html');
fs.writeFileSync(outside, '<h1>x</h1>');
assert.equal(isScanTargetInsideProject(outside, root), false);
assert.equal(isScanTargetInsideProject('', root), false);
assert.equal(isScanTargetInsideProject(outside, ''), false);
} finally {
fs.rmSync(scratch, { recursive: true, force: true });
}
});
it('treats symlinked and canonical forms of the same tree as one project', () => {
const real = path.join(root, 'real');
const link = path.join(root, 'link');
fs.mkdirSync(path.join(real, 'src'), { recursive: true });
fs.symlinkSync(real, link);
const file = path.join(real, 'src', 'Card.tsx');
fs.writeFileSync(file, 'noop');
assert.equal(isScanTargetInsideProject(file, link), true);
assert.equal(isScanTargetInsideProject(path.join(link, 'src', 'Card.tsx'), real), true);
});
it('classifies not-yet-written files by their nearest existing ancestor', () => {
// The before-edit hook gates proposed Writes, so the target often does
// not exist. Canonicalization must climb to an existing ancestor rather
// than bail, or a new file under a symlinked root would read as outside.
const real = path.join(root, 'real');
const link = path.join(root, 'link');
fs.mkdirSync(real, { recursive: true });
fs.symlinkSync(real, link);
assert.equal(isScanTargetInsideProject(path.join(link, 'src', 'New.tsx'), real), true);
assert.equal(isScanTargetInsideProject(path.join(real, 'deep', 'New.tsx'), link), true);
assert.equal(isScanTargetInsideProject(path.join(root, 'elsewhere', 'New.tsx'), real), false);
});
});
describe('readConfig()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('returns defaults when file missing', () => {
const cfg = readConfig(cwd);
assert.equal(cfg.enabled, true);
assert.equal(cfg.limits.maxFindings, DEFAULT_CONFIG.limits.maxFindings);
});
it('parses hook runtime and legacy hook detector filters', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: {
enabled: false,
ignoreRules: ['side-tab'],
ignoreFiles: ['src/legacy/**'],
minSeverity: 'error',
limits: { maxFindings: 2, maxChars: 1000 },
},
}));
const cfg = readConfig(cwd);
assert.equal(cfg.enabled, false);
assert.deepEqual(cfg.ignoreRules, ['side-tab']);
assert.deepEqual(cfg.ignoreFiles, ['src/legacy/**']);
assert.deepEqual(cfg.ignoreValues, []);
assert.equal(cfg.limits.maxFindings, 2);
assert.equal(cfg.limits.maxChars, 1000);
});
it('merges shared config first and local config second', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: {
enabled: false,
minSeverity: 'error',
limits: { maxFindings: 2, maxChars: 1000 },
},
detector: {
ignoreRules: ['side-tab'],
ignoreFiles: ['src/legacy/**'],
ignoreValues: [
{ rule: 'overused-font', value: 'inter', reason: 'team default' },
],
},
}));
fs.writeFileSync(getLocalConfigPath(cwd), JSON.stringify({
hook: {
enabled: true,
minSeverity: 'warning',
limits: { maxFindings: 4 },
},
detector: {
ignoreRules: ['gradient-text', 'side-tab'],
ignoreFiles: ['src/local/**'],
ignoreValues: [
{ rule: 'overused-font', value: 'Roboto' },
{ rule: 'overused-font', value: 'Inter', reason: 'local override' },
],
},
}));
const cfg = readConfig(cwd);
assert.equal(cfg.enabled, true);
assert.deepEqual(cfg.ignoreRules, ['side-tab', 'gradient-text']);
assert.deepEqual(cfg.ignoreFiles, ['src/legacy/**', 'src/local/**']);
assert.deepEqual(cfg.ignoreValues, [
{ rule: 'overused-font', value: 'inter', reason: 'local override' },
{ rule: 'overused-font', value: 'roboto' },
]);
assert.equal(cfg.limits.maxFindings, 4);
assert.equal(cfg.limits.maxChars, 1000);
});
it('tolerates malformed JSON and falls back to defaults', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), '{ not json');
const cfg = readConfig(cwd);
assert.equal(cfg.enabled, true);
});
it('ignores malformed local config while preserving valid shared config', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: {
enabled: false,
ignoreRules: ['side-tab'],
limits: { maxFindings: 3 },
},
}));
fs.writeFileSync(getLocalConfigPath(cwd), '{ not json');
const cfg = readConfig(cwd);
assert.equal(cfg.enabled, false);
assert.deepEqual(cfg.ignoreRules, ['side-tab']);
assert.equal(cfg.limits.maxFindings, 3);
});
it('parses detector.extensions entries and defaults engine to html', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: {
extensions: [
{ ext: '.blade.php' },
{ ext: '.html.erb', engine: 'html' },
{ ext: '.d.ts.hbs', engine: 'text' },
'twig',
{ ext: '' },
{ engine: 'html' },
42,
],
},
}));
const cfg = readConfig(cwd);
assert.deepEqual(cfg.extensions, [
{ ext: '.blade.php', engine: 'html' },
{ ext: '.html.erb', engine: 'html' },
{ ext: '.d.ts.hbs', engine: 'text' },
{ ext: '.twig', engine: 'html' },
]);
});
it('lets local-config detector.extensions override the shared engine per ext', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: { extensions: [{ ext: '.blade.php', engine: 'html' }] },
}));
fs.writeFileSync(getLocalConfigPath(cwd), JSON.stringify({
detector: { extensions: [{ ext: '.blade.php', engine: 'text' }, { ext: '.twig' }] },
}));
const cfg = readConfig(cwd);
assert.deepEqual(cfg.extensions, [
{ ext: '.blade.php', engine: 'text' },
{ ext: '.twig', engine: 'html' },
]);
});
it('defaults detector.extensions to an empty list', () => {
assert.deepEqual(readConfig(cwd).extensions, []);
});
it('parses the new quiet and auditLog fields from the unified config', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { quiet: true, auditLog: '~/hook.ndjson' },
detector: { designSystem: { enabled: false } },
}));
const cfg = readConfig(cwd);
assert.equal(cfg.quiet, true);
assert.equal(cfg.auditLog, '~/hook.ndjson');
assert.deepEqual(cfg.designSystem, { enabled: false });
});
});
describe('readCache / persistCache / bumpEditCount', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('round-trips a session', () => {
const cache = readCache(cwd);
bumpEditCount(cache, 'sid-1', '/x/a.tsx');
bumpEditCount(cache, 'sid-1', '/x/a.tsx');
rememberFindings(cache, 'sid-1', '/x/a.tsx', [finding('side-tab', 12)]);
persistCache(cwd, cache);
const reloaded = readCache(cwd);
const file = reloaded.sessions['sid-1'].files['/x/a.tsx'];
assert.equal(file.editCount, 2);
assert.ok(file.findings.includes('side-tab:12'));
});
it('keeps same-line value-specific findings distinct in the cache', () => {
const cache = readCache(cwd);
const hotPink = {
...finding('design-system-color', 7, { snippet: 'Undocumented color #ff00aa' }),
ignoreValue: '#ff00aa',
};
const cyan = {
...finding('design-system-color', 7, { snippet: 'Undocumented color rgb(20, 180, 220)' }),
ignoreValue: 'rgb(20, 180, 220)',
};
assert.deepEqual(dedupeAgainstCache([hotPink, cyan], cache, 'sid-1', '/x/a.css'), [hotPink, cyan]);
rememberFindings(cache, 'sid-1', '/x/a.css', [hotPink]);
assert.deepEqual(dedupeAgainstCache([hotPink, cyan], cache, 'sid-1', '/x/a.css'), [cyan]);
});
it('garbage-collects oldest sessions over CACHE_MAX_SESSIONS', () => {
const cache = readCache(cwd);
// Stamp 10 sessions, each with a unique updatedAt so ordering is stable.
for (let i = 0; i < 10; i++) {
const id = `sid-${i}`;
cache.sessions[id] = { updatedAt: 1000 + i, files: {} };
}
persistCache(cwd, cache);
const reloaded = readCache(cwd);
assert.equal(Object.keys(reloaded.sessions).length, 8);
assert.ok(reloaded.sessions['sid-9'], 'newest preserved');
assert.ok(!reloaded.sessions['sid-0'], 'oldest gc-ed');
});
});
describe('ensureHookGitExcludes()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('adds hook runtime files to local git info exclude, not tracked .gitignore', () => {
execFileSync('git', ['init', '-q'], { cwd });
const result = ensureHookGitExcludes(cwd);
assert.equal(result.mode, 'git-info-exclude');
assert.equal(result.changed, true);
assert.equal(fs.existsSync(path.join(cwd, '.gitignore')), false);
const exclude = fs.readFileSync(path.join(cwd, '.git', 'info', 'exclude'), 'utf-8');
assert.match(exclude, /\.impeccable\/hook\.cache\.json/);
assert.match(exclude, /\.impeccable\/hook\.pending\.json/);
assert.match(exclude, /\.impeccable\/config\.local\.json/);
const second = ensureHookGitExcludes(cwd);
assert.equal(second.changed, false);
const rewritten = fs.readFileSync(path.join(cwd, '.git', 'info', 'exclude'), 'utf-8');
assert.equal((rewritten.match(/impeccable-hook-ignore-start/g) || []).length, 1);
});
});
describe('matchesAnyGlob()', () => {
it('handles `**`, `*`, basename, and `{}` alternation', () => {
assert.ok(matchesAnyGlob('src/legacy/Foo.tsx', ['src/legacy/**']));
assert.ok(matchesAnyGlob('src/Foo.generated.tsx', ['**/*.generated.tsx']));
assert.ok(matchesAnyGlob('src/Foo.generated.tsx', ['*.generated.tsx']));
// {ts,tsx} expands to (?:ts|tsx) so the actual file path is what matches.
assert.ok(matchesAnyGlob('src/widget/Foo.tsx', ['src/widget/Foo.{ts,tsx}']));
assert.ok(matchesAnyGlob('src/widget/Foo.ts', ['src/widget/Foo.{ts,tsx}']));
assert.ok(!matchesAnyGlob('src/widgets/Foo.tsx', ['src/legacy/**']));
assert.ok(!matchesAnyGlob('src/Foo.tsx', []));
});
});
describe('filterFindings()', () => {
it('drops by ignoreRules and ignores legacy minSeverity config', () => {
const content = [
'a', // line 1
'b', // line 2
].join('\n');
const findings = [
finding('side-tab', 1, { severity: 'warning' }),
finding('gradient-text', 2, { severity: 'warning' }),
finding('overused-font', 5, { severity: 'advisory' }),
];
const filtered = filterFindings(findings, content, '.ts', {
ignoreRules: ['side-tab'],
minSeverity: 'error',
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => f.antipattern), ['gradient-text', 'overused-font']);
});
it('drops advisory-rule findings by default', () => {
const findings = [
finding('side-tab', 1),
finding('em-dash-overuse', 2),
finding('gradient-text', 3),
];
const filtered = filterFindings(findings, '', '.html', {
ignoreRules: [],
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => f.antipattern), ['side-tab', 'gradient-text']);
});
it('keeps advisory-rule findings when advisoryRules is "include"', () => {
const findings = [
finding('side-tab', 1),
finding('em-dash-overuse', 2),
];
const filtered = filterFindings(findings, '', '.html', {
ignoreRules: [],
advisoryRules: 'include',
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => f.antipattern), ['side-tab', 'em-dash-overuse']);
});
it('recognizes advisory findings by rule id or explicit flag', () => {
assert.ok(ADVISORY_RULES.has('em-dash-overuse'));
assert.equal(isAdvisoryFinding(finding('em-dash-overuse', 1)), true);
assert.equal(isAdvisoryFinding({ antipattern: 'anything', advisory: true }), true);
assert.equal(isAdvisoryFinding(finding('side-tab', 1)), false);
});
it('does not treat source comments as hook suppression', () => {
const content = [
'/* impeccable: ignore * */',
'.card { font-family: "Roboto", sans-serif; }',
'<!-- impeccable: ignore side-tab -->',
'<div style="border-left: 4px solid #7c3aed; border-radius: 16px;">Card</div>',
].join('\n');
const filtered = filterFindings(
[finding('overused-font', 2), finding('side-tab', 4)],
content, '.html',
{ ignoreRules: [], minSeverity: 'warning', limits: DEFAULT_CONFIG.limits }
);
assert.deepEqual(filtered.map((f) => f.antipattern), ['overused-font', 'side-tab']);
});
it('drops only matching rule/value pairs from ignoreValues', () => {
const findings = [
finding('overused-font', 1, { snippet: 'Primary font: Inter (86% of text)' }),
finding('overused-font', 2, { snippet: 'Primary font: Roboto' }),
finding('overused-font', 5, { snippet: 'Google Fonts: space grotesk' }),
finding('bounce-easing', 3, { snippet: 'animation: bounce-ball' }),
finding('bounce-easing', 4, { snippet: 'animation: wobble-card' }),
finding('side-tab', 3),
];
const filtered = filterFindings(findings, '', '.css', {
ignoreRules: [],
ignoreValues: [
{ rule: 'overused-font', value: 'inter' },
{ rule: 'overused-font', value: 'space grotesk' },
{ rule: 'bounce-easing', value: 'bounce-ball' },
],
minSeverity: 'warning',
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => `${f.antipattern}:${f.line}`), ['overused-font:2', 'bounce-easing:4', 'side-tab:3']);
});
it('honors a specific-value ignoreValues entry for design-system-font-size', () => {
// The rule carries an ignoreValue and the hook's own directive tells the
// agent to waive value-specific findings with `hooks ignore-value`, but
// font-size was missing from the direct-value rule set, so any waiver
// naming an actual size was filtered against an empty extracted value and
// silently did nothing. Only the `*` wildcard worked.
const findings = [
{ ...finding('design-system-font-size', 1), ignoreValue: '0.82rem' },
{ ...finding('design-system-font-size', 2), ignoreValue: '0.9rem' },
];
const filtered = filterFindings(findings, '', '.css', {
ignoreRules: [],
ignoreValues: [{ rule: 'design-system-font-size', value: '0.82rem' }],
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => f.ignoreValue), ['0.9rem']);
});
it('scopes ignoreValues to file globs when files are provided', () => {
const findings = [
{ ...finding('design-system-color', 1, { file: '/tmp/project/site/styles/main.css' }), ignoreValue: '#8b5cf6' },
{ ...finding('design-system-color', 2, { file: '/tmp/project/site/styles/feature.css' }), ignoreValue: '#8b5cf6' },
{ ...finding('design-system-color', 3, { file: '/tmp/project/site/styles/home-kinpaku.css' }), ignoreValue: 'oklch(60% 0.25 350 / 0.22)' },
];
const filtered = filterFindings(findings, '', '.css', {
ignoreRules: [],
ignoreValues: [
{ rule: 'design-system-color', value: '#8b5cf6', files: ['site/styles/main.css'] },
{ rule: 'design-system-color', value: 'oklch(60% 0.25 350 / 0.22)', file: 'site/styles/home-kinpaku.css' },
],
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => `${f.file}:${f.line}`), ['/tmp/project/site/styles/feature.css:2']);
});
it('matches equivalent design-system color ignore values', () => {
const findings = [
{ ...finding('design-system-color', 1, { file: '/tmp/project/site/styles/rgb.css' }), ignoreValue: 'rgb(139, 92, 246)' },
{ ...finding('design-system-color', 2, { file: '/tmp/project/site/styles/hex.css' }), ignoreValue: '#8b5cf6' },
{ ...finding('design-system-color', 3, { file: '/tmp/project/site/styles/alpha.css' }), ignoreValue: 'rgba(139, 92, 246, 0.5)' },
{ ...finding('design-system-color', 4, { file: '/tmp/project/site/styles/other.css' }), ignoreValue: '#8b5cf7' },
{ ...finding('design-system-radius', 5, { file: '/tmp/project/site/styles/radius.css' }), ignoreValue: 'rgb(139, 92, 246)' },
];
const filtered = filterFindings(findings, '', '.css', {
ignoreRules: [],
ignoreValues: [
{ rule: 'design-system-color', value: '#8b5cf6' },
{ rule: 'design-system-color', value: 'rgb(139 92 246 / 100%)' },
],
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => `${f.antipattern}:${f.line}`), [
'design-system-color:3',
'design-system-color:4',
'design-system-radius:5',
]);
});
it('allows wildcard ignoreValues only when scoped to files', () => {
const findings = [
{ ...finding('design-system-color', 1, { file: '/tmp/project/site/styles/main.css' }), ignoreValue: '#8b5cf6' },
{ ...finding('design-system-color', 2, { file: '/tmp/project/site/styles/feature.css' }), ignoreValue: '#8b5cf6' },
{ ...finding('design-system-font', 3, { file: '/tmp/project/site/styles/main.css' }), ignoreValue: 'Inter' },
];
const filtered = filterFindings(findings, '', '.css', {
ignoreRules: [],
ignoreValues: [
{ rule: 'design-system-color', value: '*', files: ['site/styles/main.css'] },
{ rule: 'design-system-font', value: '*' },
],
limits: DEFAULT_CONFIG.limits,
});
assert.deepEqual(filtered.map((f) => `${f.antipattern}:${f.line}`), ['design-system-color:2', 'design-system-font:3']);
});
it('extracts overused-font values from primary, CSS, and Google font snippets', () => {
assert.equal(
extractFindingIgnoreValue(finding('overused-font', 1, { snippet: 'Primary font: Open Sans (80% of text)' })),
'open sans',
);
assert.equal(
extractFindingIgnoreValue(finding('overused-font', 1, { snippet: 'body { font-family: "Inter", sans-serif; }' })),
'inter',
);
assert.equal(
extractFindingIgnoreValue(finding('overused-font', 1, { snippet: 'https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400' })),
'plus jakarta sans',
);
assert.equal(
extractFindingIgnoreValue(finding('overused-font', 1, { snippet: 'Google Fonts: space grotesk' })),
'space grotesk',
);
assert.equal(extractFindingIgnoreValue(finding('side-tab', 1)), '');
});
it('extracts bounce-easing values from motion snippets', () => {
assert.equal(
extractFindingIgnoreValue(finding('bounce-easing', 1, { snippet: 'animation: bounce-ball' })),
'bounce-ball',
);
assert.equal(
extractFindingIgnoreValue(finding('bounce-easing', 1, { snippet: 'animate-bounce (Tailwind)' })),
'animate-bounce',
);
assert.equal(
extractFindingIgnoreValue(finding('bounce-easing', 1, { snippet: 'cubic-bezier(0.3, -0.4, 0.6, 1.4)' })),
'cubic-bezier(0.3, -0.4, 0.6, 1.4)',
);
});
});
describe('hook-admin.mjs', () => {
let cwd;
const script = path.resolve('skill', 'scripts', 'hook-admin.mjs');
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function runAdmin(args) {
return execFileSync(process.execPath, [script, ...args], {
cwd,
env: { ...process.env },
encoding: 'utf-8',
});
}
it('refuses an empty --file glob instead of silently writing a project-wide ignore', () => {
// `--file=` was dropped by filter(Boolean), so this reported success and
// stored an entry with no files: a broader suppression than was asked for.
for (const args of [['--file='], ['--file', ''], ['--files=']]) {
assert.throws(
() => runAdmin(['ignore-value', 'overused-font', 'Inter', ...args]),
/requires a non-empty glob/,
`empty glob via ${args.join(' ')} must error`,
);
}
// `--file --reason "why"` consumed --reason as the scope and let the reason
// text fold into the value: stored value="* why" files=["--reason"], success.
assert.throws(
() => runAdmin(['ignore-value', 'design-system-font-size', '*', '--file', '--reason', 'why']),
/requires a glob, got the flag --reason/,
'a following flag is not a glob',
);
assert.equal(fs.existsSync(path.join(cwd, '.impeccable', 'config.json')), false, 'nothing may be written');
});
it('matches an on-disk scope whose glob order differs from the sorted argv form', () => {
// Storage is canonical now, but configs written before that are not. Every key
// that hashes `files` must sort or a re-add duplicates the entry.
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(path.join(cwd, '.impeccable', 'config.json'), JSON.stringify({
detector: { ignoreValues: [
{ rule: 'design-system-font-size', value: '*', files: ['b.css', 'a.css'], createdAt: '2026-01-01T00:00:00.000Z' },
] },
}));
runAdmin(['ignore-value', 'design-system-font-size', '*', '--file', 'a.css', '--file', 'b.css', '--reason', 're-add']);
const cfg = JSON.parse(fs.readFileSync(path.join(cwd, '.impeccable', 'config.json'), 'utf-8'));
const entries = cfg.detector.ignoreValues.filter((e) => e.rule === 'design-system-font-size');
assert.equal(entries.length, 1, 'an unsorted on-disk scope must match the sorted argv form, not duplicate');
assert.equal(entries[0].reason, 're-add', 'the existing entry is the one updated');
});
it('stores a multi-file scope in canonical order so argv order cannot duplicate it', () => {
runAdmin(['ignore-value', 'design-system-font-size', '*', '--file', 'b.css', '--file', 'a.css']);
runAdmin(['ignore-value', 'design-system-font-size', '*', '--file', 'a.css', '--file', 'b.css']);
const cfg = JSON.parse(fs.readFileSync(path.join(cwd, '.impeccable', 'config.json'), 'utf-8'));
const entries = cfg.detector.ignoreValues.filter((e) => e.rule === 'design-system-font-size');
assert.equal(entries.length, 1, 'the same scope in a different order is one entry, not two');
assert.deepEqual(entries[0].files, ['a.css', 'b.css']);
});
it('status shows the file scope of a scoped wildcard ignore', () => {
runAdmin(['ignore-value', 'design-system-font-size', '*', '--file', 'src/widget.js']);
const out = runAdmin(['status']);
// Printing `design-system-font-size=*` bare reads as the project-wide
// wildcard this command refuses, which is the opposite of what is on disk.
assert.match(out, /design-system-font-size=\*\s*\[src\/widget\.js\]/);
});
it('refuses a bare wildcard and names a project-wide command that actually works', () => {
assert.throws(
() => runAdmin(['ignore-value', 'design-system-font-size', '*']),
(err) => /--file/.test(String(err.stderr)) && /ignore-rule design-system-font-size\./.test(String(err.stderr)),
);
// ignore-rule overused-font refuses on its own without --all-values, so the
// suggestion must carry the flag or it hands the user a second error.
assert.throws(
() => runAdmin(['ignore-value', 'overused-font', '*']),
(err) => /ignore-rule overused-font --all-values/.test(String(err.stderr)),
);
});
it('ignore-value writes shared config by default without creating local config', () => {
const out = runAdmin(['ignore-value', 'overused-font', 'Inter', '--reason', 'User confirmed Inter']);
assert.match(out, /overused-font=inter/);
assert.equal(fs.existsSync(getLocalConfigPath(cwd)), false);
const raw = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8'));
assert.equal(raw.hook, undefined);
const shared = raw.detector;
assert.deepEqual(shared.ignoreRules, []);
assert.deepEqual(shared.ignoreValues.map(({ rule, value, reason }) => ({ rule, value, reason })), [
{ rule: 'overused-font', value: 'inter', reason: 'User confirmed Inter' },
]);
assert.match(shared.ignoreValues[0].createdAt, /^\d{4}-\d{2}-\d{2}T/);
});
it('ignore-value --shared remains accepted for shared config', () => {
runAdmin(['ignore-value', 'overused-font', 'Open', 'Sans', '--shared', '--reason', 'Brand font']);
assert.equal(fs.existsSync(getLocalConfigPath(cwd)), false);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(shared.ignoreValues.map(({ rule, value, reason }) => ({ rule, value, reason })), [
{ rule: 'overused-font', value: 'open sans', reason: 'Brand font' },
]);
});
it('ignore-value --local writes private config and status reports local ignores', () => {
runAdmin(['ignore-value', 'overused-font', 'Inter', '--local']);
runAdmin(['ignore-value', 'OVERUSED-FONT', '"Inter"', '--local', '--reason', 'Still intentional']);
assert.equal(fs.existsSync(getConfigPath(cwd)), false);
const raw = JSON.parse(fs.readFileSync(getLocalConfigPath(cwd), 'utf-8'));
assert.equal(raw.hook, undefined);
const local = raw.detector;
assert.equal(local.designSystem, undefined, 'local ignore should not override shared design-system state');
assert.equal(local.ignoreValues.length, 1);
assert.equal(local.ignoreValues[0].reason, 'Still intentional');
const status = runAdmin(['status']);
assert.match(status, /local file:\s+\.impeccable\/config\.local\.json/);
assert.match(status, /ignoreValues:\s+overused-font=inter/);
});
// detector.ignoreValues honours a `files` scope, which is the narrowest way to
// silence one noisy rule on one file. hook-admin could not write it, so the
// only reachable option was ignore-file, which silences every rule for that
// file forever.
it('ignore-value scopes a wildcard to files via --file', () => {
const out = runAdmin([
'ignore-value', 'design-system-font-size', '*',
'--file', 'src/overlay/widget.js',
'--reason', 'Widget builds its own type scale',
]);
assert.match(out, /scoped to src\/overlay\/widget\.js/);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(shared.ignoreValues, [{
rule: 'design-system-font-size',
value: '*',
files: ['src/overlay/widget.js'],
createdAt: shared.ignoreValues[0].createdAt,
reason: 'Widget builds its own type scale',
}]);
});
it('ignore-value accepts --file=, --files= and repeated --file', () => {
runAdmin(['ignore-value', 'side-tab', '*', '--file=a.css']);
runAdmin(['ignore-value', 'side-tab', '*', '--files=b.css']);
runAdmin(['ignore-value', 'low-contrast', '*', '--file', 'c.css', '--file', 'd.css']);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(
shared.ignoreValues.map(({ rule, files }) => ({ rule, files })),
[
{ rule: 'side-tab', files: ['a.css'] },
{ rule: 'side-tab', files: ['b.css'] },
{ rule: 'low-contrast', files: ['c.css', 'd.css'] },
],
'each distinct file scope is its own entry; a rule+value-only key overwrote them',
);
});
it('ignore-value refuses a wildcard with no file scope', () => {
assert.throws(
() => runAdmin(['ignore-value', 'design-system-font-size', '*']),
/Wildcard value ignores must be scoped with --file/,
'a bare wildcard is ignore-rule\'s job, not a per-file waiver',
);
assert.equal(fs.existsSync(getConfigPath(cwd)), false, 'a refused ignore must not write config');
});
it('ignore-value --file requires a glob', () => {
assert.throws(
() => runAdmin(['ignore-value', 'side-tab', '*', '--file']),
/--file requires a glob/,
);
});
it('ignore-value rejects an unknown flag instead of folding it into the value', () => {
// `--shard` (a typo for --shared) used to store the value "inter --shard",
// which matches nothing, while reporting a successful suppression.
assert.throws(
() => runAdmin(['ignore-value', 'overused-font', 'Inter', '--shard']),
/Unknown ignore-value flag: --shard/,
);
assert.equal(fs.existsSync(getConfigPath(cwd)), false);
});
// Every write runs the entries through normalizeIgnoreValueEntries. Emitting a
// different key order than the one on disk rewrote all untouched entries.
it('an unrelated edit leaves existing ignoreValues byte-identical', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
const seeded = {
detector: {
ignoreRules: [],
ignoreFiles: [],
ignoreValues: [
{
rule: 'bounce-easing',
value: 'bounce-ball',
createdAt: '2026-06-15T04:15:03.164Z',
reason: 'Intentional',
},
{
rule: 'design-system-color',
value: '*',
files: ['site/styles/demo.css'],
createdAt: '2026-06-15T23:37:38.170Z',
reason: 'Deliberate off-system demo',
},
],
},
};
fs.writeFileSync(getConfigPath(cwd), JSON.stringify(seeded, null, 2) + '\n');
const before = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector.ignoreValues;
runAdmin(['ignore-file', 'some/other/**']);
const after = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(after.ignoreFiles, ['some/other/**'], 'the intended change still lands');
assert.equal(
JSON.stringify(after.ignoreValues),
JSON.stringify(before),
'untouched ignoreValues must keep their exact key order, or every config diff churns',
);
});
// hook-lib.mjs (skill, ships into harness dirs) and cli/lib/impeccable-config.mjs
// (CLI + Pages functions) carry independent copies of this normalizer by
// necessity. They write the same file, so a key-order drift between them makes
// the config churn depending on which tool touched it last.
it('both config normalizers emit identical entries', () => {
const input = [
{ rule: 'BOUNCE-EASING', value: 'Bounce-Ball', reason: ' r ', createdAt: '2026-01-01T00:00:00.000Z' },
{ rule: 'design-system-color', value: '*', files: [' a.css ', 'b.css', 'a.css'], createdAt: '2026-02-02T00:00:00.000Z' },
{ rule: 'side-tab', value: '*', file: 'legacy.css' },
{ rule: '', value: 'dropped' },
];
assert.equal(
JSON.stringify(normalizeIgnoreValueEntries(input)),
JSON.stringify(normalizeIgnoreValueEntriesCli(input)),
'skill/scripts/hook-lib.mjs and cli/lib/impeccable-config.mjs must agree, key order included',
);
// And pin the canonical order itself, which is what the config on disk uses.
const full = { rule: 'side-tab', value: '*', files: ['a.css'], createdAt: '2026-01-01T00:00:00.000Z', reason: 'r' };
assert.deepEqual(
Object.keys(normalizeIgnoreValueEntries([full])[0]),
['rule', 'value', 'files', 'createdAt', 'reason'],
);
});
it('a /impeccable hooks edit preserves sibling hook fields (consent, quiet)', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
// A recorded per-developer consent in the local file...
fs.writeFileSync(getLocalConfigPath(cwd), JSON.stringify({ hook: { consent: 'declined' } }));
runAdmin(['ignore-value', 'overused-font', 'Inter', '--local']);
const localRaw = JSON.parse(fs.readFileSync(getLocalConfigPath(cwd), 'utf-8'));
assert.equal(localRaw.hook.consent, 'declined', 'consent must survive a local ignore-value edit');
assert.equal(localRaw.detector.ignoreValues.length, 1);
// ...and a shared quiet flag survives an on/off toggle.
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { quiet: true } }));
runAdmin(['off']);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).hook;
assert.equal(shared.enabled, false);
assert.equal(shared.quiet, true, 'quiet must survive an enable/disable toggle');
});
it('hooks on accepts declined consent and installs missing provider manifests', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getLocalConfigPath(cwd), JSON.stringify({ hook: { consent: 'declined', quiet: true } }));
for (const provider of ['.claude', '.agents', '.cursor', '.github']) {
fs.mkdirSync(path.join(cwd, provider, 'skills', 'impeccable', 'scripts'), { recursive: true });
}
fs.mkdirSync(path.join(cwd, '.claude'), { recursive: true });
fs.writeFileSync(path.join(cwd, '.claude', 'settings.local.json'), JSON.stringify({
hooks: {
PostToolUse: [
{ matcher: 'OtherTool', hooks: [{ type: 'command', command: 'node "./local-hook.mjs"' }] },
{ matcher: 'Edit', hooks: [{ type: 'command', command: 'node ".claude/skills/impeccable/scripts/hook.mjs"' }] },
],
},
}));
const out = runAdmin(['on']);
assert.match(out, /Recorded local hook consent/);
assert.match(out, /Installed or repaired hook manifests for: \.claude, \.agents, \.cursor, \.github/);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).hook;
assert.equal(shared.enabled, true);
const local = JSON.parse(fs.readFileSync(getLocalConfigPath(cwd), 'utf-8')).hook;
assert.equal(local.consent, 'accepted');
assert.equal(local.quiet, true, 'unrelated local hook fields survive consent repair');
const claude = fs.readFileSync(path.join(cwd, '.claude', 'settings.local.json'), 'utf-8');
assert.match(claude, /local-hook\.mjs/);
// One PostToolUse entry plus one Stop entry; the stale pre-existing
// impeccable entry must have been stripped, not accumulated.
assert.equal(claude.split('skills/impeccable/scripts/hook.mjs').length - 1, 2);
assert.match(claude, /"Stop"/);
const claudeManifest = JSON.parse(claude);
const impeccableGroup = claudeManifest.hooks.PostToolUse.find((group) =>
group.hooks?.some((hook) => hook.command?.includes('skills/impeccable/scripts/hook.mjs')));
assert.ok(impeccableGroup, 'repaired Claude settings should contain the Impeccable PostToolUse group');
assert.equal(impeccableGroup.matcher, 'Edit|Write');
const codex = fs.readFileSync(path.join(cwd, '.codex', 'hooks.json'), 'utf-8');
assert.match(codex, /\.agents\/skills\/impeccable\/scripts\/hook\.mjs/);
const cursor = fs.readFileSync(path.join(cwd, '.cursor', 'hooks.json'), 'utf-8');
assert.match(cursor, /\.cursor\/skills\/impeccable\/scripts\/hook-before-edit\.mjs/);
const github = JSON.parse(fs.readFileSync(path.join(cwd, '.github', 'hooks', 'impeccable.json'), 'utf-8'));
assert.equal(github.hooks.postToolUse[0].matcher, 'edit|create|apply_patch');
assert.match(github.hooks.postToolUse[0].bash, /\.github\/skills\/impeccable\/scripts\/hook\.mjs/);
});
it('ignore-rule overused-font requires explicit broad suppression', () => {
assert.throws(
() => runAdmin(['ignore-rule', 'overused-font']),
/ignore-value overused-font <font>|--all-values/,
);
assert.equal(fs.existsSync(getConfigPath(cwd)), false);
});
it('ignore-rule overused-font --all-values writes a whole-rule suppression', () => {
const out = runAdmin(['ignore-rule', 'overused-font', '--all-values', '--reason', 'User asked to ignore overused fonts generally']);
assert.match(out, /Added "overused-font" to detector\.ignoreRules/);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(shared.ignoreRules, ['overused-font']);
assert.deepEqual(shared.ignoreValues, []);
});
it('ignore-rule still allows non-value rules without --all-values', () => {
runAdmin(['ignore-rule', 'side-tab']);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(shared.ignoreRules, ['side-tab']);
});
it('ignore-value rejects conflicting scope flags', () => {
assert.throws(
() => runAdmin(['ignore-value', 'overused-font', 'Inter', '--shared', '--local']),
/Pass only one scope flag/,
);
});
it('ignore-file --local writes only the private detector config', () => {
const out = runAdmin(['ignore-file', '/abs/path/personal.html', '--local']);
assert.equal(fs.existsSync(getConfigPath(cwd)), false);
const local = JSON.parse(fs.readFileSync(getLocalConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(local.ignoreFiles, ['/abs/path/personal.html']);
assert.match(out, /local detector\.ignoreFiles/);
});
it('ignore-file --local preserves the local advisory-rule preference', () => {
fs.mkdirSync(path.dirname(getLocalConfigPath(cwd)), { recursive: true });
fs.writeFileSync(getLocalConfigPath(cwd), JSON.stringify({
detector: { advisoryRules: 'include' },
}));
runAdmin(['ignore-file', '/abs/path/personal.html', '--local']);
const local = JSON.parse(fs.readFileSync(getLocalConfigPath(cwd), 'utf-8')).detector;
assert.equal(local.advisoryRules, 'include');
assert.deepEqual(local.ignoreFiles, ['/abs/path/personal.html']);
});
for (const command of ['on', 'off']) {
it(`hooks ${command} migrates a legacy hook advisory-rule preference`, () => {
fs.mkdirSync(path.dirname(getConfigPath(cwd)), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { advisoryRules: 'include' },
}));
runAdmin([command]);
const config = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8'));
assert.equal(config.hook.advisoryRules, undefined);
assert.equal(config.detector.advisoryRules, 'include');
});
}
it('hooks on keeps the canonical advisory-rule preference during legacy migration', () => {
fs.mkdirSync(path.dirname(getConfigPath(cwd)), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { advisoryRules: 'include' },
detector: {
advisoryRules: 'exclude',
extensions: [{ ext: '.blade.php', engine: 'html' }],
},
}));
runAdmin(['on']);
const config = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8'));
assert.equal(config.hook.advisoryRules, undefined);
assert.equal(config.detector.advisoryRules, 'exclude');
assert.deepEqual(config.detector.extensions, [{ ext: '.blade.php', engine: 'html' }]);
});
it('ignore-file refuses unsupported reasons and unknown flags', () => {
assert.throws(
() => runAdmin(['ignore-file', 'src/legacy/**', '--reason', 'machine-local path']),
/--reason is not supported for ignore-file/,
);
assert.throws(
() => runAdmin(['ignore-file', 'src/legacy/**', '--shard']),
/Unknown ignore-file flag: --shard/,
);
assert.equal(fs.existsSync(getConfigPath(cwd)), false);
assert.equal(fs.existsSync(getLocalConfigPath(cwd)), false);
});
it('ignore-file writes shared config that suppresses a later hook run', async () => {
const file = path.join(cwd, 'src/ConfirmedCard.html');
fs.mkdirSync(path.dirname(file), { recursive: true });
fs.writeFileSync(file, '<div style="border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px;">Card</div>');
fs.mkdirSync(path.dirname(getConfigPath(cwd)), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: { extensions: [{ ext: '.blade.php', engine: 'html' }] },
}));
runAdmin(['ignore-file', 'src/ConfirmedCard.html']);
const shared = JSON.parse(fs.readFileSync(getConfigPath(cwd), 'utf-8')).detector;
assert.deepEqual(shared.extensions, [{ ext: '.blade.php', engine: 'html' }]);
assert.deepEqual(shared.ignoreFiles, ['src/ConfirmedCard.html']);
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'confirmed-ignore-file',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
}),
env: {},
cwd,
detector: fakeDetector([finding('side-tab', 1)]),
});
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'config-ignore-file');
});
});
describe('renderTemplate()', () => {
it('starts with the versioned envelope and caps to maxFindings', () => {
const findings = Array.from({ length: 12 }, (_, i) =>
finding('side-tab', i + 1, { name: `R${i}`, description: 'd' }));
const text = renderTemplate(findings, '/x/Card.tsx', DEFAULT_CONFIG, { cwd: '/x' });
assert.ok(text.startsWith(`${ENVELOPE_PREFIX} Design hook findings requiring review in Card.tsx (12 issue(s)):`));
assert.match(text, /\.\.\. and 7 more \(see \/impeccable audit\)\./);
// Exactly 5 finding lines. The footer's triage bullets also start with
// "- ", so count only lines carrying a rule id.
const lines = text.split('\n').filter((l) => /^- L\d+ \[/.test(l));
assert.equal(lines.length, 5);
assert.ok(text.length <= DEFAULT_CONFIG.limits.maxChars);
});
it('emits a directive footer (triage branches + executable self-serve ignore + honest provenance)', () => {
// Steers the model: imperative triage into fix / suppress-and-disclose /
// ask, a runnable hook-admin.mjs path for the self-served ignore, and the
// provenance rule for --reason. See `directiveFooter()` in hook-lib.mjs
// for the rationale.
const text = renderTemplate(
[finding('side-tab', 1, { name: 'X' })],
'/x/Card.tsx', DEFAULT_CONFIG, { cwd: '/x' }
);
assert.match(text, /Triage each finding/);
assert.match(text, /what you fixed, what you suppressed, and what you left standing/);
assert.match(text, /Real design problem: fix it\. Keep intentional design as designed\./);
assert.match(text, /Confident false positive or sanctioned exception/);
assert.match(text, /literal or domain-appropriate motion/);
assert.match(text, /persist the narrowest ignore yourself and disclose it/);
// quoteCommandArg quotes the hook-admin.mjs path per platform (single
// quotes on POSIX, double on Windows; #533), so match either close quote.
assert.match(text, /hook-admin\.mjs['"] ignore-value <rule> "<value>" --reason "<who decided: evidence>"/);
assert.match(text, /Write "user confirmed" in a reason only when the user did/);
assert.match(text, /Unsure: leave it as is and ask the user in one line/);
assert.match(text, /Self-serve ends at ignore-value/);
assert.match(text, /never add an ignore to push a blocked write through/);
assert.match(text, /Full suppression ladder: \/impeccable hooks/);
});
it('renders the one-line short footer when opts.footer is "short"', () => {
const text = renderTemplate(
[finding('side-tab', 1, { name: 'X' })],
'/x/Card.tsx', DEFAULT_CONFIG, { cwd: '/x', footer: 'short' }
);
assert.match(text, /Triage per the session policy/);
// The short form names the tool without the absolute path; the runnable
// invocation lives only in the session's first (full) footer. The quoted
// path would render as `node '...'` on POSIX or `node "..."` on Windows,
// so reject both.
assert.match(text, /`hook-admin\.mjs ignore-value`/);
assert.doesNotMatch(text, /node ['"]/);
assert.match(text, /unsure, ask in one line/);
assert.doesNotMatch(text, /Triage each finding/);
assert.doesNotMatch(text, /Self-serve ends at ignore-value/);
});
it('dedupes rule descriptions within one emission, keeping per-line ignore hints', () => {
const desc = 'Long registry description that should appear once.';
const text = renderTemplate(
[
finding('overused-font', 2, { name: 'Overused font', description: desc, snippet: 'font-family: "Roboto"' }),
finding('overused-font', 9, { name: 'Overused font', description: desc, snippet: 'font-family: "Inter"' }),
],
'/x/fonts.css', DEFAULT_CONFIG, { cwd: '/x' }
);
const occurrences = text.split(desc).length - 1;
assert.equal(occurrences, 1);
// The repeat keeps the rule id, name, and its own value-specific hint.
assert.match(text, /- L9 \[overused-font\] Overused font\. If intentional: `ignore-value overused-font Inter`\./);
assert.match(text, /`ignore-value overused-font Roboto`/);
});
it('shows the value-specific ignore hint for overused-font findings', () => {
const text = renderTemplate(
[finding('overused-font', 1, { name: 'Overused font', snippet: 'body { font-family: "Roboto", sans-serif; }' })],
'/x/fonts.css', DEFAULT_CONFIG, { cwd: '/x' }
);
// The line carries just the rule/value pair; the runnable hook-admin.mjs
// prefix and the --reason contract are stated once in the footer.
assert.match(text, /If intentional: `ignore-value overused-font Roboto`\./);
});
it('shows the value-specific ignore hint for bounce-easing findings', () => {
const text = renderTemplate(
[finding('bounce-easing', 1, { name: 'Bounce or elastic easing', snippet: 'animation: bounce-ball' })],
'/x/main.css', DEFAULT_CONFIG, { cwd: '/x' }
);
assert.match(text, /If intentional: `ignore-value bounce-easing bounce-ball`\./);
});
it('single-quotes a hostile font value so the suggestion cannot inject a shell command (#476)', () => {
// The suggested pair comes straight from scanned file content. A
// double-quoted arg would leave $(...) live for whoever pastes it into
// the footer's hook-admin.mjs command; single quotes neutralize it. The
// hint format is now the bare `ignore-value <rule> '<value>'` pair (the
// runnable command prefix, --shared/--reason contract live in the
// footer), but the value still goes through quoteCommandArg.
const text = renderTemplate(
[finding('overused-font', 1, {
name: 'Overused font',
snippet: 'body { font-family: "$(touch pwned)", sans-serif; }',
})],
'/x/fonts.css', DEFAULT_CONFIG, { cwd: '/x' }
);
assert.match(text, /ignore-value overused-font '\$\(touch pwned\)'/);
assert.doesNotMatch(text, /ignore-value overused-font "\$\(touch pwned\)"/);
});
it('quotes a hint value per platform: single quotes on POSIX, double quotes on Windows (#533)', () => {
// #533 originally targeted the footer's concrete `--file <path>`
// suggestion; directiveFooter() now carries only literal placeholders
// (`--file <path>`), so that surface is gone. The quoting-sensitive
// surface that remains user-visible is the per-finding ignore hint,
// whose value comes straight from scanned file content and is meant to
// be pasted into the footer's command on this same machine. POSIX needs
// single quotes so $(...) cannot execute; Windows cmd.exe treats single
// quotes as literal, so a value with spaces must stay double-quoted or
// the ignore scope is split at the space.
const original = process.platform;
const renderFor = (platform) => {
Object.defineProperty(process, 'platform', { value: platform, configurable: true });
try {
return renderTemplate(
[finding('overused-font', 1, {
name: 'Overused font',
snippet: 'h1 { font-family: "Space Grotesk Var", sans-serif; }',
})],
'/x/fonts.css', DEFAULT_CONFIG, { cwd: '/x' }
);
} finally {
Object.defineProperty(process, 'platform', { value: original, configurable: true });
}
};
assert.match(renderFor('linux'), /ignore-value overused-font 'Space Grotesk Var'/);
assert.match(renderFor('win32'), /ignore-value overused-font "Space Grotesk Var"/);
});
it('keeps the policy footer when reserveChars presses against the 500-char floor', () => {
// Bugbot on PR #508: the note reservation used to be subtracted after
// the 500-char floor, so the clamp could run at ~366 chars, below the
// budget clampLastLine assumes safe, and the hard tail slice cut the
// policy footer. The reserve now comes off before the floor; when the
// floor wins, the note defers instead.
const config = { ...DEFAULT_CONFIG, limits: { ...DEFAULT_CONFIG.limits, maxChars: 500 } };
const longPath = `/x/${'deeply-nested/'.repeat(6)}Component.tsx`;
const text = renderTemplate(
Array.from({ length: 6 }, (_, i) =>
finding('side-tab', i + 1, { name: 'Side tab', description: 'Colored side border.' })),
longPath, config, { cwd: '/x', reserveChars: 134 }
);
assert.ok(text.length <= 500, `stays inside the floored budget (got ${text.length})`);
assert.match(text, /unsure, ask in one line\.$/);
assert.doesNotMatch(text, /…$/);
});
it('drops the L<line> prefix when line is 0', () => {
const text = renderTemplate(
[finding('side-tab', 0, { name: 'X' })],
'/x/a.tsx', DEFAULT_CONFIG, { cwd: '/x' }
);
assert.match(text, /^- \[side-tab\]/m);
});
it('does not suggest ignore-value for rules that cannot be value-filtered', () => {
const text = renderTemplate(
[finding('side-tab', 1, {
name: 'Side tab',
ignoreValue: 'Inter',
})],
'/x/a.tsx', DEFAULT_CONFIG, { cwd: '/x' }
);
assert.doesNotMatch(text, /\/impeccable hooks ignore-value side-tab Inter/);
});
it('clamps oversize output to maxChars', () => {
const huge = Array.from({ length: 5 }, (_, i) =>
finding('side-tab', i + 1, { name: 'X', description: 'y'.repeat(2000) }));
const text = renderTemplate(huge, '/x/a.tsx',
{ ...DEFAULT_CONFIG, limits: { maxFindings: 5, maxChars: 500 } },
{ cwd: '/x' });
assert.ok(text.length <= 500);
});
it('keeps a policy footer when the clamp cuts down to one finding line', () => {
// At the minimum budget the full footer cannot fit beside a long finding,
// so the clamp clips the finding line and downgrades to the short policy
// instead of slicing the footer off the tail.
const huge = [finding('side-tab', 1, { name: 'X', description: 'y'.repeat(2000) })];
const text = renderTemplate(huge, '/x/a.tsx',
{ ...DEFAULT_CONFIG, limits: { maxFindings: 5, maxChars: 500 } },
{ cwd: '/x' });
assert.ok(text.length <= 500);
assert.match(text, /\[side-tab\]/, 'the finding is still identified');
assert.match(text, /Triage per the session policy/, 'a clamped emission still carries the policy');
});
it('keeps findings that fit beside the short policy instead of dropping them for the full one', () => {
const findings = [1, 2, 3].map((line) =>
finding('side-tab', line, { name: 'X', description: 'short issue' }));
const text = renderTemplate(findings, '/x/a.tsx',
{ ...DEFAULT_CONFIG, limits: { maxFindings: 5, maxChars: 500 } },
{ cwd: '/x' });
assert.ok(text.length <= 500);
assert.match(text, /- L1 /);
assert.match(text, /- L2 /);
assert.match(text, /- L3 /, 'all findings survive; the clamp must not drop lines chasing the full policy');
assert.match(text, /Triage per the session policy/);
});
});
describe('writeAuditLog()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('appends NDJSON when IMPECCABLE_HOOK_LOG is set', () => {
const log = path.join(cwd, 'audit.ndjson');
writeAuditLog({ IMPECCABLE_HOOK_LOG: log }, { event: 'PostToolUse', emitted: true });
writeAuditLog({ IMPECCABLE_HOOK_LOG: log }, { event: 'PostToolUse', emitted: false });
const body = fs.readFileSync(log, 'utf-8');
assert.equal(body.trim().split('\n').length, 2);
for (const line of body.trim().split('\n')) {
const obj = JSON.parse(line);
assert.ok(obj.ts && obj.event === 'PostToolUse');
}
});
it('is a no-op when IMPECCABLE_HOOK_LOG is unset', () => {
assert.equal(writeAuditLog({}, { event: 'x' }, cwd), false);
});
it('falls back to the unified config hook.auditLog when the env var is unset', () => {
const log = path.join(cwd, 'from-config.ndjson');
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { auditLog: log } }));
assert.equal(writeAuditLog({}, { event: 'PostToolUse' }, cwd), true);
assert.equal(fs.readFileSync(log, 'utf-8').trim().split('\n').length, 1);
});
it('prefers the env var over config hook.auditLog', () => {
const envLog = path.join(cwd, 'from-env.ndjson');
const cfgLog = path.join(cwd, 'from-config.ndjson');
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { auditLog: cfgLog } }));
writeAuditLog({ IMPECCABLE_HOOK_LOG: envLog }, { event: 'PostToolUse' }, cwd);
assert.equal(fs.existsSync(envLog), true);
assert.equal(fs.existsSync(cfgLog), false);
});
it('resolves config auditLog from entry.cwd (the event project root), not the fallback cwd', () => {
const projectDir = path.join(cwd, 'project');
const log = path.join(cwd, 'event-cwd.ndjson');
fs.mkdirSync(path.join(projectDir, '.impeccable'), { recursive: true });
fs.writeFileSync(path.join(projectDir, '.impeccable', 'config.json'),
JSON.stringify({ hook: { auditLog: log } }));
// The fallback cwd (root) has no config; entry.cwd points at the project.
assert.equal(writeAuditLog({}, { event: 'PostToolUse', cwd: projectDir }, cwd), true);
assert.equal(fs.existsSync(log), true);
});
it('resolves a relative auditLog path against the project root, not the process cwd', () => {
const projectDir = path.join(cwd, 'project');
fs.mkdirSync(path.join(projectDir, '.impeccable'), { recursive: true });
fs.writeFileSync(path.join(projectDir, '.impeccable', 'config.json'),
JSON.stringify({ hook: { auditLog: 'logs/hook.ndjson' } }));
assert.equal(writeAuditLog({}, { event: 'PostToolUse', cwd: projectDir }, cwd), true);
// Written under the project root, not the fallback cwd.
assert.equal(fs.existsSync(path.join(projectDir, 'logs', 'hook.ndjson')), true);
assert.equal(fs.existsSync(path.join(cwd, 'logs', 'hook.ndjson')), false);
});
});
describe('payload()', () => {
it('produces hookSpecificOutput for Claude/Codex', () => {
const obj = JSON.parse(payload('hello'));
assert.equal(obj.hookSpecificOutput.hookEventName, 'PostToolUse');
assert.equal(obj.hookSpecificOutput.additionalContext, 'hello');
});
it('produces additional_context for Cursor', () => {
const obj = JSON.parse(payload('hello', 'PostToolUse', 'cursor'));
assert.equal(obj.additional_context, 'hello');
assert.equal(obj.hookSpecificOutput, undefined);
});
it('produces top-level additionalContext for GitHub Copilot', () => {
const obj = JSON.parse(payload('hello', 'PostToolUse', 'github'));
assert.equal(obj.additionalContext, 'hello');
assert.equal(obj.hookSpecificOutput, undefined);
assert.equal(obj.additional_context, undefined);
});
});
describe('runHook()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function eventFor(file, sessionId = 'sid-1') {
return {
session_id: sessionId,
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
}
function writeFixture(rel, body) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
function writeDesignMd() {
fs.writeFileSync(path.join(cwd, 'DESIGN.md'), `---
typography:
body:
fontFamily: "IBM Plex Sans, Arial, sans-serif"
colors:
ink: "#241f1a"
rounded:
md: "8px"
---
# Design System
`);
}
function designFinding(value = 'Poppins') {
return {
...finding('design-system-font', 1, {
name: 'Font outside DESIGN.md',
description: 'A font is used that is not declared in DESIGN.md typography.',
snippet: `font-family: "${value}", sans-serif;`,
}),
ignoreValue: value,
};
}
function designAwareDetector({ stale = false } = {}) {
return {
loadDesignSystemForCwd: (projectCwd) => (
fs.existsSync(path.join(projectCwd, 'DESIGN.md'))
? { present: true, hasFonts: true, mdNewerThanJson: stale }
: null
),
detectText: (_content, _filePath, options = {}) => (
options.designSystem ? [designFinding()] : []
),
detectHtml: (_filePath, options = {}) => (
options.designSystem ? [designFinding()] : []
),
};
}
it('emits findings on first fire, then a pending-ack on subsequent dedup hits', async () => {
// The "no silent fires" policy turns the previously-silent dedup hit
// into a pending re-nudge that keeps the unresolved finding in the
// model's context across turns. Findings emission still wins outright
// over the nudge (`renderTemplate` text), so r1 is unchanged from
// before. r2 is what changed: silent → pending ack.
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('text-overflow', 1, { name: 'Content overflow' })]);
const r1 = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r1.exitCode, 0);
assert.ok(r1.stdout.includes(ENVELOPE_PREFIX));
assert.match(r1.stdout, /Design hook findings requiring review/);
assert.equal(r1.audit.emitted, true);
const r2 = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r2.exitCode, 0);
assert.ok(r2.stdout.includes(ENVELOPE_PREFIX));
assert.match(r2.stdout, /Still has 1 finding\(s\) flagged earlier this session/);
assert.match(r2.stdout, /text-overflow:1/);
assert.equal(r2.audit.emitted, true);
assert.equal(r2.audit.kind, 'pending');
});
it('handles a GitHub Copilot edit event end-to-end and emits additionalContext', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('gradient-text', 1, { name: 'Gradient text' })]);
const githubEvent = {
sessionId: 'gh-1',
cwd,
toolName: 'edit',
toolArgs: JSON.stringify({ path: file, old_str: 'a', new_str: 'b' }),
};
const r = await runHook({ stdinJson: JSON.stringify(githubEvent), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.equal(r.audit.harness, 'github');
assert.equal(r.audit.emitted, true);
const out = JSON.parse(r.stdout);
assert.ok(out.additionalContext.includes(ENVELOPE_PREFIX));
assert.match(out.additionalContext, /Design hook findings requiring review/);
assert.equal(out.hookSpecificOutput, undefined);
});
it('handles a Grok Build search_replace event and does not classify it as github (#646)', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('gradient-text', 1, { name: 'Gradient text' })]);
const grokEvent = {
hookEventName: 'post_tool_use',
sessionId: 'grok-1',
cwd,
workspaceRoot: `${cwd}/`,
toolName: 'search_replace',
toolInput: { file_path: file, old_string: 'a', new_string: 'b' },
toolResult: { type: 'SearchReplace' },
};
const r = await runHook({ stdinJson: JSON.stringify(grokEvent), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.equal(r.audit.harness, 'grok');
assert.notEqual(r.audit.harness, 'github');
assert.equal(r.audit.emitted, true);
assert.equal(r.audit.skipped, undefined);
const out = JSON.parse(r.stdout);
assert.match(out.hookSpecificOutput.additionalContext, /gradient-text/);
const cache = readCache(cwd);
assert.ok(cache.sessions['grok-1'].files[file], 'PostToolUse must mark the file for Stop');
assert.deepEqual(cache.sessions['grok-1'].files[file].findings || [], []);
});
it('handles a GitHub Copilot apply_patch event end-to-end (interactive/cloud path)', async () => {
// The real bug the live test caught: interactive Copilot edits via
// apply_patch (raw patch string in toolArgs), which the matcher and runtime
// must both cover — not just the edit/create tools seen in `copilot -p`.
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('gradient-text', 1, { name: 'Gradient text' })]);
const patch = [
'*** Begin Patch',
`*** Update File: ${file}`,
'+noop',
'*** End Patch',
].join('\n');
const githubEvent = { sessionId: 'gh-ap', cwd, toolName: 'apply_patch', toolArgs: patch };
const r = await runHook({ stdinJson: JSON.stringify(githubEvent), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.equal(r.audit.harness, 'github');
assert.equal(r.audit.tool, 'apply_patch');
assert.equal(r.audit.emitted, true);
const out = JSON.parse(r.stdout);
assert.ok(out.additionalContext.includes(ENVELOPE_PREFIX));
assert.match(out.additionalContext, /Design hook findings requiring review/);
});
it('emits a clean ack when the file has zero findings', async () => {
// No-silent-fires policy: a successful scan that finds nothing still
// emits a short positive nudge so the hook stays a conversational
// presence on every fire.
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([]); // no findings
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.ok(r.stdout.includes(ENVELOPE_PREFIX));
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.match(r.stdout, /keep following the project design system and the impeccable skill guidance/);
assert.equal(r.audit.emitted, true);
assert.equal(r.audit.kind, 'clean');
});
it('does not emit clean acks for plain .ts files', async () => {
const file = writeFixture('src/server.ts', 'export const value = 1;');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {},
cwd,
detector: fakeDetector([]),
});
assert.equal(r.exitCode, 0);
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'non-ui-ack');
});
it('still emits findings for plain .ts files', async () => {
const file = writeFixture('src/styles.ts', 'export const css = "box-shadow: 0 0 24px #7c3aed";');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {},
cwd,
detector: fakeDetector([finding('dark-glow', 1)]),
});
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /dark-glow/);
});
it('does not emit pending acks for plain .js files', async () => {
const file = writeFixture('src/build.js', 'export const value = 1;');
const det = fakeDetector([finding('text-overflow', 1)]);
const first = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.match(first.stdout, /Design hook findings requiring review/);
const second = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(second.stdout, '');
assert.equal(second.audit.skipped, 'non-ui-ack');
});
it('IMPECCABLE_HOOK_QUIET=1 suppresses clean and pending acks, keeps findings emission', async () => {
// The opt-out kill switch for users who want the old silent-on-clean
// behavior. Findings still emit because those are real signals; the
// QUIET switch only quiets the conversational acks.
const fileA = writeFixture('src/A.tsx', 'noop');
const fileB = writeFixture('src/B.tsx', 'noop');
// Clean file: silent under QUIET.
const detClean = fakeDetector([]);
const rClean = await runHook({
stdinJson: JSON.stringify(eventFor(fileA)),
env: { IMPECCABLE_HOOK_QUIET: '1' }, cwd, detector: detClean,
});
assert.equal(rClean.stdout, '');
assert.equal(rClean.audit.emitted, false);
assert.equal(rClean.audit.quiet, true);
// Findings file: still emits.
const detFindings = fakeDetector([finding('text-overflow', 1)]);
const rFindings = await runHook({
stdinJson: JSON.stringify(eventFor(fileB)),
env: { IMPECCABLE_HOOK_QUIET: '1' }, cwd, detector: detFindings,
});
assert.ok(rFindings.stdout.includes(ENVELOPE_PREFIX));
assert.match(rFindings.stdout, /Design hook findings requiring review/);
assert.equal(rFindings.audit.emitted, true);
});
it('config quiet:true suppresses the clean ack like the env switch', async () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { quiet: true } }));
const file = writeFixture('src/Quiet.tsx', 'noop');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: fakeDetector([]),
});
assert.equal(r.stdout, '');
assert.equal(r.audit.quiet, true);
});
it('re-entrancy guard short-circuits when IMPECCABLE_HOOK_DEPTH is set', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: { IMPECCABLE_HOOK_DEPTH: '1' },
cwd,
detector: det,
});
assert.equal(r.stdout, '');
assert.equal(r.audit.reentrant, true);
});
it('re-entrancy guard treats numeric CLAUDE_HOOK_DEPTH values as active', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: { CLAUDE_HOOK_DEPTH: '2' },
cwd,
detector: det,
});
assert.equal(r.stdout, '');
assert.equal(r.audit.reentrant, true);
});
it('IMPECCABLE_HOOK_DISABLED kill switch', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
for (const v of ['1', 'true', 'yes', 'on', 'TRUE']) {
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: { IMPECCABLE_HOOK_DISABLED: v },
cwd,
detector: det,
});
assert.equal(r.stdout, '', `expected silent for value ${v}`);
assert.equal(r.audit.skipped, 'env-disabled');
}
});
it('config-disabled silences cleanly', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { enabled: false } }));
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'config-disabled');
});
it('skips the scan when PRODUCT.md declares a native platform', async () => {
// The web rule engine has no business flagging React Native screens; the
// hook watches .tsx/.ts/.js, which is exactly what a native project is
// made of, so the platform field gates the whole scan.
for (const platform of ['ios', 'android', 'adaptive']) {
writeFixture('PRODUCT.md', `# App\n\n## Register\n\nproduct\n\n## Platform\n\n${platform}\n`);
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file, `native-${platform}`)), env: {}, cwd, detector: det });
assert.equal(r.stdout, '', `expected silence for platform ${platform}`);
assert.equal(r.audit.skipped, 'native-platform');
assert.equal(r.audit.platform, platform);
}
});
it('still scans when PRODUCT.md declares web (or has no platform field)', async () => {
writeFixture('PRODUCT.md', '# App\n\n## Register\n\nproduct\n\n## Platform\n\nweb\n');
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('text-overflow', 1, { name: 'Content overflow' })]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file, 'web-platform')), env: {}, cwd, detector: det });
assert.match(r.stdout, /Content overflow/);
});
it('only unlocks design-system detector findings when DESIGN.md exists', async () => {
const file = writeFixture('src/Card.tsx', '.card { font-family: "Poppins", sans-serif; }');
const det = designAwareDetector();
const withoutDesign = await runHook({
stdinJson: JSON.stringify(eventFor(file, 'design-system-off')),
env: {},
cwd,
detector: det,
});
assert.match(withoutDesign.stdout, /No deterministic design-quality issues found/);
assert.doesNotMatch(withoutDesign.stdout, /design-system-font/);
writeDesignMd();
const withDesign = await runHook({
stdinJson: JSON.stringify(eventFor(file, 'design-system-on')),
env: {},
cwd,
detector: det,
});
assert.match(withDesign.stdout, /Design hook findings requiring review/);
assert.match(withDesign.stdout, /design-system-font/);
assert.match(withDesign.stdout, /If intentional: `ignore-value design-system-font Poppins`/);
});
it('respects detector.designSystem.enabled=false', async () => {
writeDesignMd();
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: { designSystem: { enabled: false } },
}));
const file = writeFixture('src/Card.tsx', '.card { font-family: "Poppins", sans-serif; }');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file, 'design-system-disabled')),
env: {},
cwd,
detector: designAwareDetector(),
});
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.doesNotMatch(r.stdout, /design-system-font/);
});
it('suppresses design-system findings through ignore-value', async () => {
writeDesignMd();
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: {
ignoreValues: [
{ rule: 'design-system-font', value: 'Poppins' },
],
},
}));
const file = writeFixture('src/Card.tsx', '.card { font-family: "Poppins", sans-serif; }');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file, 'design-system-ignore-value')),
env: {},
cwd,
detector: designAwareDetector(),
});
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.doesNotMatch(r.stdout, /design-system-font/);
});
it('adds a non-blocking note when DESIGN.md is newer than the sidecar', async () => {
writeDesignMd();
const file = writeFixture('src/Card.tsx', 'noop');
const det = {
loadDesignSystemForCwd: () => ({ present: true, mdNewerThanJson: true }),
detectText: () => [],
detectHtml: () => [],
};
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file, 'design-system-stale-sidecar')),
env: {},
cwd,
detector: det,
});
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.match(r.stdout, /DESIGN\.md is newer than \.impeccable\/design\.json/);
assert.match(r.stdout, /\/impeccable document/);
});
it('rejects sensitive paths before reading file content', async () => {
const file = path.join(cwd, '.env');
fs.writeFileSync(file, 'SECRET=42');
const det = { detectText: () => { throw new Error('should not run'); } };
const r = await runHook({
stdinJson: JSON.stringify({ ...eventFor(file), tool_input: { file_path: file } }),
env: {}, cwd, detector: det,
});
assert.equal(r.audit.skipped, 'sensitive');
});
it('rejects generated paths', async () => {
const file = writeFixture('dist/Card.tsx', 'noop');
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd });
assert.equal(r.audit.skipped, 'generated');
});
it('rejects path traversal in file_path', async () => {
const r = await runHook({
stdinJson: JSON.stringify({ ...eventFor('/foo/../etc/passwd') }),
env: {}, cwd,
});
assert.equal(r.audit.skipped, 'sensitive');
});
it('rejects files outside the project, like harness scratchpads', async () => {
// Session cwd is a real project; the touched file is a throwaway HTML in
// a temp dir elsewhere. Findings against it would be judged with this
// project's config and DESIGN.md, so the scan must skip it entirely.
fs.writeFileSync(path.join(cwd, 'package.json'), '{"name":"proj"}');
const scratch = mkTmp();
try {
const file = path.join(scratch, 'id-test', 'landing.html');
fs.mkdirSync(path.dirname(file), { recursive: true });
fs.writeFileSync(file, '<h1>throwaway</h1>');
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'outside-project');
assert.ok(!fs.existsSync(path.join(cwd, '.impeccable')), 'out-of-project edit must not dirty the cache');
} finally {
fs.rmSync(scratch, { recursive: true, force: true });
}
});
it('still scans a file whose project root is reached through a symlinked cwd', async () => {
// macOS /tmp -> /private/tmp style: the session cwd is a symlink to the
// project while the tool reports the canonical file path. Containment
// compares canonical paths, so this is inside, not outside.
const real = path.join(cwd, 'realproj');
const link = path.join(cwd, 'proj-link');
fs.mkdirSync(path.join(real, 'src'), { recursive: true });
fs.writeFileSync(path.join(real, 'package.json'), '{"name":"proj"}');
fs.symlinkSync(real, link);
const file = path.join(real, 'src', 'Card.tsx');
fs.writeFileSync(file, 'noop');
const event = {
session_id: 'sym-sid',
cwd: link,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
const r = await runHook({ stdinJson: JSON.stringify(event), env: {}, cwd: link, detector: fakeDetector([]) });
assert.notEqual(r.audit.skipped, 'outside-project');
assert.match(r.stdout, /No deterministic design-quality issues found/);
});
it('rejects extensions outside the allowlist', async () => {
const file = writeFixture('docs/README.md', 'noop');
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd });
assert.equal(r.audit.skipped, 'extension');
});
it('config ignoreFiles glob suppresses', async () => {
const file = writeFixture('src/legacy/Foo.tsx', 'noop');
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: { ignoreFiles: ['src/legacy/**'] },
}));
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'config-ignore-file');
});
it('emits one-shot suppression notice on the 7th edit and silences after', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
let last;
for (let i = 0; i < 8; i++) {
// Use a different line each time so we don't dedup; we want to hit
// edit-count, not the dedup cache.
const f = [finding('side-tab', i + 1)];
last = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: { detectText: () => f, detectHtml: () => f },
});
}
// The 7th call (index 6) crosses the threshold; the 8th (index 7) is silent.
assert.equal(last.stdout, '', '8th edit should be silent');
assert.equal(last.audit.suppressed, true);
});
it('emits suppressionNotice text on the threshold-crossing edit', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
let r;
for (let i = 0; i < 7; i++) {
const f = [finding('side-tab', i + 1)];
r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: { detectText: () => f, detectHtml: () => f },
});
}
assert.ok(r.stdout.includes('Suppressing further design hints'));
assert.match(r.stdout, /More than 6 edits in this session reached/);
assert.match(r.stdout, /Run \/impeccable audit to revisit/);
});
it('handles MultiEdit and apply_patch payload shapes (file_path field)', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1)]);
for (const event of [
{ ...eventFor(file), tool_name: 'MultiEdit', tool_input: { file_path: file, edits: [] } },
{ ...eventFor(file), tool_name: 'apply_patch', tool_input: { file_path: file, command: '...' } },
]) {
const r = await runHook({ stdinJson: JSON.stringify(event), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
// First call emits; second is dedup-silent. Reset by using fresh session.
assert.ok(r.stdout.length >= 0);
}
});
it('parses Codex apply_patch command when file_path is omitted', async () => {
writeFixture('src/Card.tsx', '<div className="border-l-4" />');
const event = {
session_id: 'sid-codex-ap',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'apply_patch',
tool_input: {
command: '*** Begin Patch\n*** Update File: src/Card.tsx\n*** End Patch',
},
};
const det = fakeDetector([finding('text-overflow', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(event), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.match(r.stdout, /Design hook findings requiring review/);
});
it('detector throw is swallowed; never breaks turn', async () => {
const file = writeFixture('src/Card.tsx', 'noop');
const det = { detectText: () => { throw new Error('boom'); } };
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.equal(r.stdout, '');
});
it('awaits the real async HTML detector before deciding a page is clean', async () => {
// The fixture's finding (side-tab) sits in the deferred tier, so restore
// the full per-edit rule set for this test via the config override.
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { perEditRules: 'all' } }));
const file = writeFixture('index.html', [
'<!doctype html>',
'<html><body>',
'<div style="border-left: 4px solid #6366f1; border-radius: 8px; padding: 16px;">Feature</div>',
'</body></html>',
].join('\n'));
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {},
cwd,
detector: { detectHtml, detectText },
});
assert.match(r.stdout, /Design hook findings requiring review/);
assert.doesNotMatch(r.stdout, /No deterministic design-quality issues found/);
assert.ok(r.audit.findings > 0);
});
it('honors an inline impeccable-disable comment so the hook scans the file clean', async () => {
// The hook runs the same engine as `npx impeccable detect`, so an in-file
// waiver suppresses hook findings exactly like a config ignore would.
// overused-font is deferred-tier; use the perEditRules override so the
// per-edit pass surfaces it here.
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { perEditRules: 'all' } }));
const flagged = writeFixture('src/Flagged.tsx', 'const css = "font-family: Inter";');
const flaggedRun = await runHook({
stdinJson: JSON.stringify(eventFor(flagged)), env: {}, cwd, detector: { detectHtml, detectText },
});
assert.match(flaggedRun.stdout, /Design hook findings requiring review/);
assert.ok(flaggedRun.audit.findings > 0);
const waived = writeFixture('src/Waived.tsx',
'const css = "font-family: Inter"; // impeccable-disable-line overused-font');
const waivedRun = await runHook({
stdinJson: JSON.stringify(eventFor(waived)), env: {}, cwd, detector: { detectHtml, detectText },
});
assert.match(waivedRun.stdout, /No deterministic design-quality issues found/);
assert.equal(waivedRun.audit.findings, 0);
});
it('malformed stdin → silent skip', async () => {
const r = await runHook({ stdinJson: '{not json', env: {}, cwd });
assert.equal(r.audit.skipped, 'stdin-malformed');
});
it('missing file → silent skip (race protection)', async () => {
const r = await runHook({
stdinJson: JSON.stringify(eventFor(path.join(cwd, 'src/Vanished.tsx'))),
env: {}, cwd,
});
assert.equal(r.audit.skipped, 'file-missing');
});
});
describe('runHook() — cache write gating (issues #344, #305)', () => {
// The hook must be a no-op on disk in projects that never earned an
// `.impeccable/` footprint: skipped files never dirty the cache, and a
// dirty cache is only persisted when there are fresh findings or the
// project already opted in (an `.impeccable/` dir exists).
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function eventFor(file, sessionId = 'gate-sid') {
return {
session_id: sessionId,
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
}
function write(rel, body, base = cwd) {
const abs = path.join(base, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
it('non-UI edit (.md) does not create .impeccable/', async () => {
const file = write('notes/todo.md', '# notes');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: fakeDetector([finding('side-tab', 1)]),
});
assert.equal(r.audit.skipped, 'extension');
assert.ok(!fs.existsSync(path.join(cwd, '.impeccable')), '.impeccable should not exist');
});
it('clean UI edit in a project with no footprint does not create .impeccable/, still acks', async () => {
const file = write('src/Card.tsx', 'noop');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: fakeDetector([]),
});
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.ok(!fs.existsSync(path.join(cwd, '.impeccable')), '.impeccable should not exist');
});
it('detector-missing path does not create .impeccable/', async () => {
const file = write('src/Card.tsx', 'noop');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: {},
});
assert.equal(r.audit.skipped, 'detector-missing');
assert.ok(!fs.existsSync(path.join(cwd, '.impeccable')), '.impeccable should not exist');
});
it('fresh findings create the cache, and dedup works on the next run', async () => {
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('text-overflow', 1)]);
const first = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.match(first.stdout, /Design hook findings requiring review/);
assert.ok(fs.existsSync(path.join(cwd, '.impeccable', 'hook.cache.json')), 'cache should exist');
const second = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.doesNotMatch(second.stdout, /Design hook findings requiring review/);
assert.match(second.stdout, /flagged earlier this session/);
});
it('clean UI edit in an opted-in project (existing .impeccable/) still persists editCount', async () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
const file = write('src/Card.tsx', 'noop');
await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: fakeDetector([]) });
const cache = readCache(cwd);
assert.equal(cache.sessions['gate-sid'].files[file].editCount, 1);
});
it('umbrella launch keys the cache to the edited file\'s project root', async () => {
// cwd is the umbrella: no .git / package.json / .impeccable of its own.
write('app/package.json', '{"name":"child"}');
const file = write('app/src/Card.tsx', 'noop');
const child = path.join(cwd, 'app');
const r = await runHook({
stdinJson: JSON.stringify(eventFor(file)),
env: {}, cwd, detector: fakeDetector([finding('text-overflow', 1)]),
});
assert.match(r.stdout, /Design hook findings requiring review/);
assert.equal(r.audit.cwd, child);
assert.ok(fs.existsSync(path.join(child, '.impeccable', 'hook.cache.json')), 'cache should land in the child project');
assert.ok(!fs.existsSync(path.join(cwd, '.impeccable')), 'umbrella root should stay clean');
});
});
describe('runHook() — oversized files', () => {
let cwd;
beforeEach(() => {
cwd = mkTmp();
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
});
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
const event = (file) => JSON.stringify({
session_id: 'sid-1', cwd, hook_event_name: 'PostToolUse',
tool_name: 'Edit', tool_input: { file_path: file },
});
it('skips a file past the size ceiling, since a huge single file is a bundle', async () => {
const file = path.join(cwd, 'bundle.js');
fs.writeFileSync(file, `/* ${'x'.repeat(200 * 1024)} */`);
const r = await runHook({
stdinJson: event(file), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.ok(!r.audit.emitted);
assert.equal(r.audit.skipped, 'too-large');
});
it('still scans a large but plausibly authored stylesheet', async () => {
const file = path.join(cwd, 'main.css');
fs.writeFileSync(file, `/* ${'x'.repeat(90 * 1024)} */`);
const r = await runHook({
stdinJson: event(file), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.equal(r.audit.emitted, true);
});
// `bytes` describes the file that was skipped. It must never ride along on an
// audit entry whose `file` is something else, in either scan order, and must
// survive the early-continue paths that sit above the size check.
function patchEvent(...files) {
return JSON.stringify({
session_id: `sid-${files.length}-${files[0]}`, cwd,
hook_event_name: 'PostToolUse', tool_name: 'apply_patch',
tool_input: {
command: `*** Begin Patch\n${files.map(f => `*** Update File: ${f}`).join('\n')}\n*** End Patch`,
},
});
}
it('does not leak a skipped file\'s byte count when the bundle is scanned first', async () => {
const big = path.join(cwd, 'bundle.js');
const small = path.join(cwd, 'a.css');
fs.writeFileSync(big, `/* ${'x'.repeat(200 * 1024)} */`);
fs.writeFileSync(small, 'noop');
const r = await runHook({
stdinJson: patchEvent(big, small), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.match(r.stdout, /a\.css/);
assert.equal(r.audit.bytes, undefined, 'bytes belongs to the skipped file, not this one');
});
it('does not leak a skipped file\'s byte count when the bundle is scanned last', async () => {
const small = path.join(cwd, 'a.css');
const big = path.join(cwd, 'bundle.js');
fs.writeFileSync(small, 'noop');
fs.writeFileSync(big, `/* ${'x'.repeat(200 * 1024)} */`);
const r = await runHook({
stdinJson: patchEvent(small, big), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.match(r.stdout, /a\.css/);
assert.equal(r.audit.bytes, undefined, 'the emitted file is not the oversized one');
});
it('does not leak a byte count past an early-continue target', async () => {
// `generated` is checked before the size gate, so a later generated target
// returns without ever reaching the point where bytes would be cleared.
const big = path.join(cwd, 'bundle.js');
const gen = path.join(cwd, 'dist', 'Card.tsx');
fs.writeFileSync(big, `/* ${'x'.repeat(200 * 1024)} */`);
fs.mkdirSync(path.dirname(gen), { recursive: true });
fs.writeFileSync(gen, 'noop');
const r = await runHook({
stdinJson: patchEvent(big, gen), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.ok(!r.audit.emitted);
assert.equal(r.audit.bytes, undefined, 'bytes must not describe a different file');
});
it('still records the byte count when the oversized file is the outcome', async () => {
const big = path.join(cwd, 'bundle.js');
fs.writeFileSync(big, `/* ${'x'.repeat(200 * 1024)} */`);
const r = await runHook({
stdinJson: patchEvent(big), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.equal(r.audit.skipped, 'too-large');
assert.ok(r.audit.bytes > 200 * 1024, 'the skip reason should still carry its size');
});
it('honors a configured limits.maxFileBytes', async () => {
fs.writeFileSync(path.join(cwd, '.impeccable', 'config.json'), JSON.stringify({
hook: { limits: { maxFileBytes: 1024 } },
}));
const file = path.join(cwd, 'small.css');
fs.writeFileSync(file, `/* ${'x'.repeat(4096)} */`);
const r = await runHook({
stdinJson: event(file), env: {}, cwd,
detector: fakeDetector([finding('side-tab', 1, { name: 'Side-tab' })]),
});
assert.equal(r.audit.skipped, 'too-large');
});
});
describe('runHook() — the session cache tracks the current scan', () => {
let cwd;
beforeEach(() => {
cwd = mkTmp();
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
});
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function eventFor(file, sessionId = 'sid-1') {
return {
session_id: sessionId,
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
}
// A detector whose findings change between runs, so the cache can be
// observed as the file is progressively fixed.
function mutableDetector(initial = []) {
let current = initial;
return {
set(next) { current = next; },
detectText: () => current.slice(),
detectHtml: () => current.slice(),
};
}
// An immediate-tier rule, so the per-edit pass reports it rather than
// deferring it to the Stop deep pass. These cases are about cache
// bookkeeping, not tiering.
function fontFinding(line, value) {
return { ...finding('design-system-font', line, { name: 'Off-system font' }), ignoreValue: value };
}
const run = (file, det) => runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
it('counts the current scan in the pending ack, not the session history', async () => {
const file = path.join(cwd, 'a.css');
fs.writeFileSync(file, 'noop');
const det = mutableDetector([
fontFinding(1, 'inter'), fontFinding(2, 'roboto'), fontFinding(3, 'geist'),
]);
const r1 = await run(file, det);
assert.match(r1.stdout, /\(3 issue\(s\)\)/);
// Fix two of the three. The pending ack must not keep naming them.
det.set([fontFinding(1, 'inter')]);
const r2 = await run(file, det);
assert.equal(r2.audit.kind, 'pending');
assert.match(r2.stdout, /Still has 1 finding\(s\)/);
assert.match(r2.stdout, /design-system-font:1:inter/);
assert.ok(!r2.stdout.includes('roboto'), 'must not name a finding that was fixed');
assert.ok(!r2.stdout.includes('geist'), 'must not name a finding that was fixed');
});
it('reports a reintroduced finding as fresh instead of swallowing it', async () => {
const file = path.join(cwd, 'a.css');
fs.writeFileSync(file, 'noop');
const det = mutableDetector([fontFinding(1, 'inter')]);
const r1 = await run(file, det);
assert.match(r1.stdout, /Design hook findings requiring review/);
// Fixed: the hook goes clean and must forget the finding.
det.set([]);
const r2 = await run(file, det);
assert.equal(r2.audit.kind, 'clean');
// Reintroduced: this is a regression and has to surface as fresh, not be
// deduped against a stale memory of the same key.
det.set([fontFinding(1, 'inter')]);
const r3 = await run(file, det);
assert.equal(r3.audit.emitted, true);
assert.match(r3.stdout, /Design hook findings requiring review/, 'a reintroduced finding must fire again');
});
it('still dedupes an unchanged finding within a session', async () => {
// Guard against over-correcting: forgetting fixed findings must not turn
// every repeat edit back into a full findings dump.
const file = path.join(cwd, 'a.css');
fs.writeFileSync(file, 'noop');
const det = mutableDetector([fontFinding(1, 'inter')]);
await run(file, det);
const r2 = await run(file, det);
assert.equal(r2.audit.kind, 'pending');
assert.match(r2.stdout, /Still has 1 finding\(s\)/);
});
});
describe('runHook() — session-scoped notices', () => {
let cwd;
beforeEach(() => {
cwd = mkTmp();
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
});
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
const event = (file, sessionId = 'sid-1') => JSON.stringify({
session_id: sessionId, cwd, hook_event_name: 'PostToolUse',
tool_name: 'Edit', tool_input: { file_path: file },
});
it('emits the full directive footer once per session, then the short reminder', async () => {
const a = path.join(cwd, 'a.css');
const b = path.join(cwd, 'b.css');
fs.writeFileSync(a, 'noop');
fs.writeFileSync(b, 'noop');
const det = fakeDetector([finding('tiny-text', 1, { name: 'Tiny text' })]);
const r1 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
assert.match(r1.stdout, /Triage each finding/, 'first fresh emission carries the full policy');
const r2 = await runHook({ stdinJson: event(b), env: {}, cwd, detector: det });
assert.match(r2.stdout, /Triage per the session policy/);
assert.doesNotMatch(r2.stdout, /Triage each finding/, 'repeat emissions carry the short reminder');
// A new session pays the full policy again.
const r3 = await runHook({ stdinJson: event(a, 'sid-2'), env: {}, cwd, detector: det });
assert.match(r3.stdout, /Triage each finding/);
});
it('mentions the DESIGN.md staleness note once per session', async () => {
const a = path.join(cwd, 'a.css');
const b = path.join(cwd, 'b.css');
fs.writeFileSync(a, 'noop');
fs.writeFileSync(b, 'noop');
const det = {
...fakeDetector([finding('tiny-text', 1, { name: 'Tiny text' })]),
loadDesignSystemForCwd: () => ({ present: true, mdNewerThanJson: true }),
};
const r1 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
assert.match(r1.stdout, /DESIGN\.md is newer than \.impeccable\/design\.json/);
const r2 = await runHook({ stdinJson: event(b), env: {}, cwd, detector: det });
assert.ok(r2.audit.emitted, 'second file still emits findings');
assert.doesNotMatch(r2.stdout, /DESIGN\.md is newer/, 'the staleness note does not repeat within a session');
});
it('delivers the staleness note inside the budget on a full first emission', async () => {
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { limits: { maxChars: 500 } },
}));
const a = path.join(cwd, 'a.css');
const b = path.join(cwd, 'b.css');
fs.writeFileSync(a, 'noop');
fs.writeFileSync(b, 'noop');
const det = {
...fakeDetector([finding('tiny-text', 1, { name: 'Tiny text', description: 'y'.repeat(600) })]),
loadDesignSystemForCwd: () => ({ present: true, mdNewerThanJson: true }),
};
// A finding this long would fill the whole budget; the renderer must
// reserve room so the note still lands without busting maxChars.
const r1 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
const ctx1 = JSON.parse(r1.stdout).hookSpecificOutput.additionalContext;
assert.ok(ctx1.length <= 500, `final emission honors maxChars (got ${ctx1.length})`);
assert.match(ctx1, /DESIGN\.md is newer/, 'the note is delivered on the first emission, not deferred past it');
const r2 = await runHook({ stdinJson: event(b), env: {}, cwd, detector: det });
const ctx2 = JSON.parse(r2.stdout).hookSpecificOutput.additionalContext;
assert.doesNotMatch(ctx2, /DESIGN\.md is newer/, 'one mention per session');
});
it('keeps the full-footer flag unspent when the clamp downgrades the footer', async () => {
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { limits: { maxChars: 500 } },
}));
const a = path.join(cwd, 'a.css');
fs.writeFileSync(a, 'noop');
const det = fakeDetector([finding('tiny-text', 1, { name: 'Tiny text', description: 'y'.repeat(600) })]);
// 500 chars cannot hold the full policy, so the emission carries the
// short form. The session must not be marked as having seen the full
// footer it never received.
const r1 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
assert.match(r1.stdout, /Triage per the session policy/);
assert.doesNotMatch(r1.stdout, /Triage each finding/);
const cache = readCache(cwd);
assert.ok(!cache.sessions['sid-1'].footerShown, 'a downgraded footer does not spend the session flag');
});
it('commits the footer flag only for the complete full policy, not its opening words', () => {
const cache = { version: 1, sessions: {} };
const full = renderTemplate(
[finding('tiny-text', 1, { name: 'Tiny text' })],
'/x/a.css', DEFAULT_CONFIG, { cwd: '/x' },
);
// A tail truncation can spare "Triage each finding" while cutting the
// policy body. That must not count as delivered.
commitFooterShown(cache, 'sid-1', full.slice(0, full.length - 40));
assert.ok(!cache.sessions['sid-1']?.footerShown, 'a truncated policy must not spend the flag');
commitFooterShown(cache, 'sid-1', full);
assert.ok(cache.sessions['sid-1'].footerShown, 'the intact policy commits the flag');
});
});
describe('runHook() — clean-ack noise', () => {
let cwd;
beforeEach(() => {
cwd = mkTmp();
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
});
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
const event = (file, sessionId = 'sid-1') => JSON.stringify({
session_id: sessionId, cwd, hook_event_name: 'PostToolUse',
tool_name: 'Edit', tool_input: { file_path: file },
});
it('emits the clean ack once per file per session, then stays silent', async () => {
const a = path.join(cwd, 'a.css');
const b = path.join(cwd, 'b.css');
fs.writeFileSync(a, 'noop');
fs.writeFileSync(b, 'noop');
const det = fakeDetector([]);
const r1 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
assert.equal(r1.audit.kind, 'clean', 'first clean scan of a file still acks');
const r2 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
assert.ok(!r2.audit.emitted, 'repeat clean scans of the same file stay silent');
assert.equal(r2.audit.skipped, 'clean-ack-deduped');
assert.equal(r2.stdout, '');
// A different file gets its own first ack.
const r3 = await runHook({ stdinJson: event(b), env: {}, cwd, detector: det });
assert.equal(r3.audit.kind, 'clean');
// A new session starts over, since the steer is per-session context.
const r4 = await runHook({ stdinJson: event(a, 'sid-2'), env: {}, cwd, detector: det });
assert.equal(r4.audit.kind, 'clean');
});
it('picks a not-yet-acked file when an earlier target was already acked', async () => {
// A multi-file event (apply_patch, MultiEdit) must not lose the ack for a
// file the session has never acked just because an earlier target in the
// same run was already deduped.
const a = path.join(cwd, 'a.css');
const b = path.join(cwd, 'b.css');
fs.writeFileSync(a, 'noop');
fs.writeFileSync(b, 'noop');
const det = fakeDetector([]);
// Ack a on its own first.
const r1 = await runHook({ stdinJson: event(a), env: {}, cwd, detector: det });
assert.equal(r1.audit.kind, 'clean');
// Now touch a and b together. a is spent; b has never been acked.
const multi = JSON.stringify({
session_id: 'sid-1', cwd, hook_event_name: 'PostToolUse', tool_name: 'apply_patch',
tool_input: {
command: `*** Begin Patch\n*** Update File: ${a}\n*** Update File: ${b}\n*** End Patch`,
},
});
const r2 = await runHook({ stdinJson: multi, env: {}, cwd, detector: det });
assert.equal(r2.audit.kind, 'clean', 'b has never been acked and should win');
assert.match(r2.stdout, /b\.css/);
});
it('reports non-ui-ack when the winner was not ack-eligible, even after a dedupe', async () => {
// Mixed multi-target run: one UI file whose ack is already spent, plus a
// non-UI file. Nothing is emitted either way, but the audit reason must
// describe the winner rather than the earlier dedupe.
const css = path.join(cwd, 'a.css');
const ts = path.join(cwd, 'b.ts');
fs.writeFileSync(css, 'noop');
fs.writeFileSync(ts, 'export const a = 1;');
const det = fakeDetector([]);
await runHook({ stdinJson: event(css), env: {}, cwd, detector: det });
const multi = JSON.stringify({
session_id: 'sid-1', cwd, hook_event_name: 'PostToolUse', tool_name: 'apply_patch',
tool_input: {
command: `*** Begin Patch\n*** Update File: ${css}\n*** Update File: ${ts}\n*** End Patch`,
},
});
const r = await runHook({ stdinJson: multi, env: {}, cwd, detector: det });
assert.ok(!r.audit.emitted);
assert.equal(r.audit.skipped, 'non-ui-ack');
});
it('does not spend the clean ack while quiet mode is suppressing output', async () => {
// Quiet emits nothing, so it must not consume the once-per-session ack and
// leave a later non-quiet run silent.
const file = path.join(cwd, 'a.css');
fs.writeFileSync(file, 'noop');
const det = fakeDetector([]);
const quiet = await runHook({ stdinJson: event(file), env: { IMPECCABLE_HOOK_QUIET: '1' }, cwd, detector: det });
assert.ok(!quiet.audit.emitted);
const loud = await runHook({ stdinJson: event(file), env: {}, cwd, detector: det });
assert.equal(loud.audit.kind, 'clean', 'the ack must survive a quiet run');
});
it('keeps re-nudging with the pending ack, which is the informative one', async () => {
const file = path.join(cwd, 'a.css');
fs.writeFileSync(file, 'noop');
const det = fakeDetector([finding('gradient-text', 1, { name: 'Gradient text' })]);
await runHook({ stdinJson: event(file), env: {}, cwd, detector: det });
const r2 = await runHook({ stdinJson: event(file), env: {}, cwd, detector: det });
const r3 = await runHook({ stdinJson: event(file), env: {}, cwd, detector: det });
assert.equal(r2.audit.kind, 'pending');
assert.equal(r3.audit.kind, 'pending', 'the unresolved-finding nudge must not be deduped away');
});
});
describe('resolveCacheCwd()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('keeps the session cwd when it already looks like a project root', () => {
for (const marker of ['.git', '.impeccable']) {
const dir = path.join(cwd, `root-${marker}`);
fs.mkdirSync(path.join(dir, marker), { recursive: true });
const file = path.join(dir, 'nested', 'app', 'src', 'Card.tsx');
assert.equal(resolveCacheCwd(file, dir), dir);
}
const pkgDir = path.join(cwd, 'root-pkg');
fs.mkdirSync(pkgDir, { recursive: true });
fs.writeFileSync(path.join(pkgDir, 'package.json'), '{}');
assert.equal(resolveCacheCwd(path.join(pkgDir, 'src', 'Card.tsx'), pkgDir), pkgDir);
});
it('climbs to the nearest marker root when the session cwd is a bare umbrella', () => {
const child = path.join(cwd, 'app');
fs.mkdirSync(path.join(child, 'src'), { recursive: true });
fs.writeFileSync(path.join(child, 'package.json'), '{}');
assert.equal(resolveCacheCwd(path.join(child, 'src', 'Card.tsx'), cwd), child);
});
it('falls back to the session cwd when no marker is found or the path is unsafe', () => {
const file = path.join(cwd, 'app', 'src', 'Card.tsx');
assert.equal(resolveCacheCwd(file, cwd), cwd);
assert.equal(resolveCacheCwd('', cwd), cwd);
assert.equal(resolveCacheCwd(`${cwd}/../etc/Card.tsx`, cwd), cwd);
});
});
describe('suppressionNotice()', () => {
it('starts with envelope and mentions /impeccable audit', () => {
const text = suppressionNotice('src/Card.tsx');
assert.ok(text.startsWith(ENVELOPE_PREFIX));
assert.match(text, /More than 6 edits in this session reached/);
assert.match(text, /\/impeccable audit/);
});
});
describe('ALLOWED_EXTS', () => {
it('covers the documented design-relevant extensions', () => {
for (const ext of ['.tsx', '.jsx', '.html', '.css', '.vue', '.svelte', '.astro', '.ts', '.js', '.scss', '.sass', '.less', '.htm']) {
assert.ok(ALLOWED_EXTS.has(ext), `missing: ${ext}`);
}
for (const ext of ['.md', '.py', '.go', '.json']) {
assert.ok(!ALLOWED_EXTS.has(ext), `unexpected allowed: ${ext}`);
}
});
it('keeps clean/pending acknowledgements to UI-ish files', () => {
for (const ext of ['.tsx', '.jsx', '.html', '.css', '.vue', '.svelte', '.astro', '.scss', '.sass', '.less', '.htm']) {
assert.ok(ACK_EXTS.has(ext), `missing ack extension: ${ext}`);
assert.equal(shouldEmitAckForFile(`/x/src/App${ext}`), true);
}
for (const ext of ['.ts', '.js']) {
assert.ok(!ACK_EXTS.has(ext), `unexpected ack extension: ${ext}`);
assert.equal(shouldEmitAckForFile(`/x/src/tool${ext}`), false);
}
});
it('acks configured html-engine extensions but not text-engine ones', () => {
const config = {
extensions: [
{ ext: '.blade.php', engine: 'html' },
{ ext: '.d.ts.hbs', engine: 'text' },
],
};
assert.equal(shouldEmitAckForFile('/x/views/card.blade.php', config), true);
assert.equal(shouldEmitAckForFile('/x/templates/types.d.ts.hbs', config), false);
assert.equal(shouldEmitAckForFile('/x/views/card.blade.php'), false);
});
});
describe('matchConfiguredExtension()', () => {
const extensions = [
{ ext: '.blade.php', engine: 'html' },
{ ext: '.html.erb', engine: 'html' },
{ ext: '.twig', engine: 'html' },
];
it('matches double extensions against the end of the filename', () => {
assert.deepEqual(
matchConfiguredExtension('/app/resources/views/Card.blade.php', extensions),
{ ext: '.blade.php', engine: 'html' },
);
assert.deepEqual(
matchConfiguredExtension('app/views/users/show.html.erb', extensions),
{ ext: '.html.erb', engine: 'html' },
);
assert.deepEqual(
matchConfiguredExtension('/templates/base.twig', extensions),
{ ext: '.twig', engine: 'html' },
);
});
it('is case-insensitive on the filename', () => {
assert.ok(matchConfiguredExtension('/views/Card.BLADE.PHP', extensions));
});
it('prefers the longest matching suffix regardless of config order', () => {
const overlapping = [
{ ext: '.php', engine: 'text' },
{ ext: '.blade.php', engine: 'html' },
];
assert.deepEqual(
matchConfiguredExtension('/views/card.blade.php', overlapping),
{ ext: '.blade.php', engine: 'html' },
);
assert.deepEqual(
matchConfiguredExtension('/views/card.blade.php', overlapping.slice().reverse()),
{ ext: '.blade.php', engine: 'html' },
);
assert.deepEqual(
matchConfiguredExtension('/app/Controller.php', overlapping),
{ ext: '.php', engine: 'text' },
);
});
it('does not match unrelated files or bare dotfile-like names', () => {
assert.equal(matchConfiguredExtension('/app/Http/Controller.php', extensions), null);
assert.equal(matchConfiguredExtension('/views/.blade.php', extensions), null);
assert.equal(matchConfiguredExtension('/src/Card.tsx', extensions), null);
});
it('returns null for empty or missing config', () => {
assert.equal(matchConfiguredExtension('/views/card.blade.php', []), null);
assert.equal(matchConfiguredExtension('/views/card.blade.php', undefined), null);
});
});
describe('renderCleanAck() / renderPendingAck()', () => {
it('renderCleanAck stays short and ends with the steer line', () => {
const text = renderCleanAck('/x/src/App.jsx', { cwd: '/x' });
assert.match(text, /^\[impeccable@1\] Design hook scanned src\/App\.jsx\. No deterministic design-quality issues found\./);
assert.match(text, /keep following the project design system and the impeccable skill guidance/);
// Budget guard: should fit comfortably under a single context-message
// injection (~200 chars). Hard upper bound 240 chars.
assert.ok(text.length < 240, `clean ack too long: ${text.length} chars`);
});
it('renderPendingAck quotes up to 3 known findings and counts the rest', () => {
const known = ['side-tab:3', 'gradient-text:4', 'ai-color-palette:8', 'overused-font:12'];
const text = renderPendingAck('/x/src/SlopCard.jsx', known, { cwd: '/x' });
assert.match(text, /^\[impeccable@1\] Design hook scanned src\/SlopCard\.jsx\./);
assert.match(text, /Still has 4 finding\(s\) flagged earlier this session/);
assert.match(text, /side-tab:3, gradient-text:4, ai-color-palette:8/);
assert.match(text, /\+1 more/); // 4 total, 3 shown
assert.match(text, /Handle them before finalizing/);
});
it('renderPendingAck omits the "+N more" suffix when ≤3 known findings', () => {
const text = renderPendingAck('/x/src/A.tsx', ['side-tab:1', 'gradient-text:2'], { cwd: '/x' });
assert.ok(!text.includes('+'), 'no overflow suffix expected');
});
});
describe('parseApplyPatchPaths()', () => {
it('extracts absolute and relative paths from patch bodies', () => {
const cwd = '/proj';
const rel = parseApplyPatchPaths('*** Update File: src/App.jsx\n', cwd);
assert.deepEqual(rel, ['/proj/src/App.jsx']);
const abs = parseApplyPatchPaths('*** Add File: /tmp/x.css\n*** Update File: src/y.html\n', cwd);
assert.deepEqual(abs, ['/tmp/x.css', '/proj/src/y.html']);
});
});
describe('resolveTargetFiles()', () => {
it('uses file_path when present and falls back to apply_patch command', () => {
assert.deepEqual(resolveTargetFiles({ tool_input: { file_path: '/a/b.tsx' } }, '/proj'), ['/a/b.tsx']);
assert.deepEqual(
resolveTargetFiles({ tool_name: 'apply_patch', tool_input: { command: '*** Update File: src/x.css\n' } }, '/proj'),
['/proj/src/x.css'],
);
assert.deepEqual(resolveTargetFiles({ tool_name: 'Bash', tool_input: { command: 'echo hi' } }, '/proj'), []);
});
it('includes every apply_patch file even when file_path is also present', () => {
assert.deepEqual(
resolveTargetFiles({
tool_name: 'apply_patch',
tool_input: {
file_path: '/proj/src/App.jsx',
command: '*** Update File: src/App.jsx\n*** Update File: src/styles.css\n',
},
}, '/proj'),
['/proj/src/App.jsx', '/proj/src/styles.css'],
);
});
it('accepts Cursor Write/StrReplace path field and top-level file_path', () => {
assert.deepEqual(resolveTargetFiles({ tool_input: { path: '/a/b.tsx' } }, '/proj'), ['/a/b.tsx']);
assert.deepEqual(resolveTargetFiles({ file_path: '/a/c.css' }, '/proj'), ['/a/c.css']);
});
});
describe('resolveHarness() / normalizeHookEvent()', () => {
it('routes explicit env and Cursor conversation_id to cursor harness', () => {
assert.equal(resolveHarness({ IMPECCABLE_HOOK_HARNESS: 'cursor' }), 'cursor');
assert.equal(resolveHarness({}, { conversation_id: 'c1' }), 'cursor');
assert.equal(resolveHarness({}), 'claude');
});
it('maps Cursor postToolUse Write path into file_path + cwd', () => {
const normalized = normalizeHookEvent({
conversation_id: 'c1',
workspace_roots: ['/proj'],
tool_name: 'Write',
tool_input: { path: 'src/App.jsx' },
}, '/fallback', 'cursor');
assert.equal(normalized.session_id, 'c1');
assert.equal(normalized.cwd, '/proj');
assert.equal(normalized.tool_input.file_path, 'src/App.jsx');
});
it('routes a GitHub Copilot postToolUse event (toolName/toolArgs) to the github harness', () => {
const event = { sessionId: 's1', cwd: '/proj', toolName: 'edit', toolArgs: '{"path":"src/App.tsx"}' };
assert.equal(resolveHarness({}, event), 'github');
assert.equal(resolveHarness({ IMPECCABLE_HOOK_HARNESS: 'github' }), 'github');
// A Claude/Codex event (tool_name/tool_input) must not be mistaken for github.
assert.equal(resolveHarness({}, { tool_name: 'Edit', tool_input: { file_path: 'a.tsx' } }), 'claude');
});
it('routes a Grok Build envelope (toolName/toolInput, no toolArgs) to grok, not github (#646)', () => {
const post = {
hookEventName: 'post_tool_use',
sessionId: 's1',
cwd: '/proj',
toolName: 'search_replace',
toolInput: { file_path: '/proj/src/styles.css' },
};
const stop = {
hookEventName: 'stop',
sessionId: 's1',
cwd: '/proj',
reason: 'end_turn',
stopHookActive: false,
};
assert.equal(resolveHarness({}, post), 'grok');
assert.equal(resolveHarness({}, stop), 'grok');
assert.equal(resolveHarness({ IMPECCABLE_HOOK_HARNESS: 'grok' }), 'grok');
assert.equal(isStopEvent(stop), true);
assert.equal(isStopEvent({ hook_event_name: 'Stop' }), true);
assert.equal(isStopEvent(post), false);
});
it('normalizes a Grok search_replace event onto tool_input.file_path + session_id', () => {
const normalized = normalizeHookEvent({
hookEventName: 'post_tool_use',
sessionId: 'g1',
cwd: '/proj',
workspaceRoot: '/proj/',
toolName: 'search_replace',
toolInput: { file_path: '/proj/src/styles.css', old_string: 'a', new_string: 'b' },
toolResult: { type: 'SearchReplace' },
}, '/fallback', 'grok');
assert.equal(normalized.session_id, 'g1');
assert.equal(normalized.cwd, '/proj');
assert.equal(normalized.hook_event_name, 'PostToolUse');
assert.equal(normalized.tool_name, 'search_replace');
assert.equal(normalized.tool_input.file_path, '/proj/src/styles.css');
assert.deepEqual(resolveTargetFiles(normalized, '/proj'), ['/proj/src/styles.css']);
});
it('normalizes a GitHub edit event: JSON-string toolArgs.path -> tool_input.file_path', () => {
const normalized = normalizeHookEvent({
sessionId: 's1',
cwd: '/proj',
toolName: 'edit',
toolArgs: '{"path":"/proj/src/App.tsx","old_str":"a","new_str":"b"}',
}, '/fallback', 'github');
assert.equal(normalized.session_id, 's1');
assert.equal(normalized.cwd, '/proj');
assert.equal(normalized.tool_name, 'edit');
assert.equal(normalized.tool_input.file_path, '/proj/src/App.tsx');
});
it('normalizes a GitHub apply_patch event: raw patch string -> tool_input.command', () => {
// Interactive Copilot and the cloud agent edit via apply_patch, whose
// toolArgs is a raw OpenAI-format patch string, not JSON.
const patch = [
'*** Begin Patch',
'*** Add File: /proj/src/Card.css',
"+body { font-family: 'Inter'; }",
'*** End Patch',
].join('\n');
const normalized = normalizeHookEvent({
sessionId: 's-ap', cwd: '/proj', toolName: 'apply_patch', toolArgs: patch,
}, '/fallback', 'github');
assert.equal(normalized.tool_name, 'apply_patch');
assert.equal(normalized.tool_input.command, patch);
// resolveTargetFiles understands apply_patch via tool_input.command.
assert.deepEqual(resolveTargetFiles(normalized, '/proj'), ['/proj/src/Card.css']);
});
it('does not misroute an edit whose content contains apply_patch markers', () => {
// An edit/create payload is JSON; its edited content may legitimately
// contain "*** Begin Patch" text (e.g. editing docs about apply_patch).
// That must still take the JSON path so `path` is extracted, not be
// mistaken for a raw apply_patch payload.
const normalized = normalizeHookEvent({
sessionId: 's-edit', cwd: '/proj', toolName: 'edit',
toolArgs: JSON.stringify({
path: '/proj/docs/patches.md',
old_str: 'old',
new_str: '*** Begin Patch\n*** Add File: x\n*** End Patch',
}),
}, '/fallback', 'github');
assert.equal(normalized.tool_name, 'edit');
assert.equal(normalized.tool_input.file_path, '/proj/docs/patches.md');
assert.equal(normalized.tool_input.command, undefined);
assert.deepEqual(resolveTargetFiles(normalized, '/proj'), ['/proj/docs/patches.md']);
});
it('normalizes a GitHub create event and tolerates malformed toolArgs', () => {
const created = normalizeHookEvent({
sessionId: 's2', cwd: '/proj', toolName: 'create',
toolArgs: '{"path":"/proj/styles.css","file_text":"body{}"}',
}, '/fallback', 'github');
assert.equal(created.tool_name, 'create');
assert.equal(created.tool_input.file_path, '/proj/styles.css');
const broken = normalizeHookEvent({
sessionId: 's3', cwd: '/proj', toolName: 'edit', toolArgs: 'not json{',
}, '/fallback', 'github');
assert.equal(broken.session_id, 's3');
assert.equal(broken.tool_input.file_path, undefined);
});
});
describe('expandScanTargets()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function write(rel, body) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
it('includes co-located styles.css when the primary edit is App.jsx', () => {
const app = write('src/App.jsx', 'export default function App() { return <main className="x" />; }');
write('src/styles.css', "body { font-family: 'Inter', sans-serif; }");
const expanded = expandScanTargets([app], cwd);
assert.deepEqual(expanded, [app, path.join(cwd, 'src/styles.css')]);
});
it('includes common co-located Sass, SCSS, and Less stylesheet names', () => {
for (const name of ['index.scss', 'index.sass', 'index.less', 'global.scss', 'global.less', 'globals.scss', 'globals.less']) {
const dir = `src/${name.replaceAll('.', '-')}`;
const app = write(`${dir}/App.jsx`, 'export default function App() { return <main className="x" />; }');
const stylesheet = write(`${dir}/${name}`, ".card\n border-left: 4px solid #3b82f6");
const expanded = expandScanTargets([app], cwd);
assert.ok(expanded.includes(stylesheet), `missing ${name}`);
}
});
it('follows static stylesheet imports from the edited component', () => {
const card = write('src/Card.jsx', "import './Card.module.css';\nexport default function Card() { return null; }");
const mod = write('src/Card.module.css', '.card { border-left: 4px solid #3b82f6; }');
const expanded = expandScanTargets([card], cwd);
assert.ok(expanded.includes(mod));
});
it('includes co-located module Sass and Less stylesheets', () => {
for (const name of ['Card.module.sass', 'Card.module.less']) {
const dir = `src/${name.replaceAll('.', '-')}`;
const card = write(`${dir}/Card.jsx`, 'export default function Card() { return <main className="x" />; }');
const stylesheet = write(`${dir}/${name}`, '.card { border-left: 4px solid #3b82f6; }');
const expanded = expandScanTargets([card], cwd);
assert.ok(expanded.includes(stylesheet), `missing ${name}`);
}
});
it('resolves relative primary targets against the project cwd', () => {
write('src/Card.jsx', "import './Card.module.css';\nexport default function Card() { return null; }");
const mod = write('src/Card.module.css', '.card { border-left: 4px solid #3b82f6; }');
const expanded = expandScanTargets(['src/Card.jsx'], cwd);
assert.deepEqual(expanded, [path.join(cwd, 'src/Card.jsx'), mod]);
});
it('does not follow imports from traversal-looking primary targets', () => {
const outside = fs.mkdtempSync(path.join(os.tmpdir(), 'impeccable-hook-outside-'));
try {
fs.writeFileSync(path.join(outside, 'App.jsx'), "import './styles.css';\nexport default function App() { return null; }");
fs.writeFileSync(path.join(outside, 'styles.css'), "body { font-family: 'Inter', sans-serif; }");
const traversalPrimary = `${cwd}/../${path.basename(outside)}/App.jsx`;
const expanded = expandScanTargets([traversalPrimary], cwd);
assert.deepEqual(expanded, [traversalPrimary]);
} finally {
fs.rmSync(outside, { recursive: true, force: true });
}
});
it('does not expand when the primary target is already a stylesheet', () => {
const css = write('src/styles.css', "body { font-family: 'Inter', sans-serif; }");
assert.deepEqual(expandScanTargets([css], cwd), [css]);
});
});
describe('runHook() — co-located stylesheet scan', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function write(rel, body) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
it('flags slop in styles.css when only App.jsx was edited', async () => {
const app = write('src/App.jsx', 'export default function App() { return <main className="x" />; }');
write('src/styles.css', 'h1 { background-clip: text; color: transparent; }');
const det = {
detectText: (content, filePath) => (
filePath.endsWith('.css') ? [finding('gradient-text', 8)] : []
),
detectHtml: () => [],
};
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'co-scan',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'apply_patch',
tool_input: { command: `*** Update File: ${app}\n` },
}),
env: {},
cwd,
detector: det,
});
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /styles\.css/);
});
it('flags slop in co-located .sass when only App.jsx was edited', async () => {
const app = write('src/App.jsx', 'export default function App() { return <main className="x" />; }');
write('src/styles.sass', ".card\n box-shadow: 0 0 24px #3b82f6");
const det = {
detectText: (content, filePath) => (
filePath.endsWith('.sass') ? [finding('dark-glow', 2)] : []
),
detectHtml: () => [],
};
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'co-scan-sass',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'apply_patch',
tool_input: { command: `*** Update File: ${app}\n` },
}),
env: {},
cwd,
detector: det,
});
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /styles\.sass/);
});
it('emits fresh findings for every file scanned in the same hook run', async () => {
const app = write('src/App.jsx', 'export default function App() { return <main className="overflow-hidden" />; }');
const styles = write('src/styles.css', 'h1 { background-clip: text; color: transparent; }');
const seen = [];
const det = {
detectText: (content, filePath) => {
seen.push(filePath);
if (filePath.endsWith('App.jsx')) return [finding('text-overflow', 1)];
if (filePath.endsWith('styles.css')) return [finding('gradient-text', 1)];
return [];
},
detectHtml: () => [],
};
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'co-scan-fresh-primary',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'apply_patch',
tool_input: { command: `*** Update File: ${app}\n` },
}),
env: {},
cwd,
detector: det,
});
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /App\.jsx/);
assert.match(r.stdout, /styles\.css/);
assert.match(r.stdout, /text-overflow/);
assert.match(r.stdout, /gradient-text/);
assert.ok(seen.includes(app), 'primary file should be scanned');
assert.ok(seen.includes(styles), 'co-located stylesheet should still be scanned');
assert.equal(r.emission.groups.length, 2);
const cache = readCache(cwd);
const files = cache.sessions['co-scan-fresh-primary'].files;
assert.deepEqual(files[app].findings, ['text-overflow:1']);
assert.deepEqual(files[styles].findings, ['gradient-text:1']);
});
it('does not bump edit count for passively co-scanned stylesheets', async () => {
const app = write('src/App.jsx', 'export default function App() { return <main className="x" />; }');
const styles = write('src/styles.css', 'h1 { background-clip: text; color: transparent; }');
const det = {
detectText: (content, filePath) => (
filePath.endsWith('styles.css') ? [finding('gradient-text', 1)] : []
),
detectHtml: () => [],
};
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'co-scan-edit-count',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'apply_patch',
tool_input: { command: `*** Update File: ${app}\n` },
}),
env: {},
cwd,
detector: det,
});
assert.match(r.stdout, /styles\.css/);
const cache = readCache(cwd);
const files = cache.sessions['co-scan-edit-count'].files;
assert.equal(files[app].editCount, 1);
assert.equal(files[styles].editCount || 0, 0);
});
it('does not scan imported styles from a traversal-looking primary path', async () => {
const outside = fs.mkdtempSync(path.join(os.tmpdir(), 'impeccable-hook-outside-'));
try {
fs.writeFileSync(path.join(outside, 'App.jsx'), "import './styles.css';\nexport default function App() { return null; }");
fs.writeFileSync(path.join(outside, 'styles.css'), "body { font-family: 'Inter', sans-serif; }");
const traversalPrimary = `${cwd}/../${path.basename(outside)}/App.jsx`;
const det = fakeDetector([finding('overused-font', 1, { name: 'Overused font' })]);
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'co-scan-traversal',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: traversalPrimary },
}),
env: {},
cwd,
detector: det,
});
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'sensitive');
} finally {
fs.rmSync(outside, { recursive: true, force: true });
}
});
});
describe('runHook() — events without file_path', () => {
// The sweep fallback was removed in v5 (single-hook simplification).
// Code-execution tools that don't carry a `file_path` now hit a clean
// silent skip instead of running a git-status sweep. This keeps the
// single PostToolUse matcher (Edit/Write/MultiEdit/apply_patch) honest:
// anything else is a no-op.
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('returns silent skip with reason no-file-path', async () => {
const event = JSON.stringify({
session_id: 'sid-x',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'mcp__node_repl__js',
tool_input: { title: 'do work', code: 'console.log(1)' },
});
const det = fakeDetector([finding('side-tab', 1)]);
const r = await runHook({ stdinJson: event, env: {}, cwd, detector: det });
assert.equal(r.exitCode, 0);
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'no-file-path');
});
});
describe('runHook() — configured template extensions (issue #316)', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function eventFor(file) {
return {
session_id: 'sid-ext',
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
}
function writeFixture(rel, body) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
function writeExtensionsConfig(extensions) {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ detector: { extensions } }));
}
function recordingDetector(findings = []) {
const calls = { html: [], text: [] };
return {
calls,
detectHtml: (filePath) => { calls.html.push(filePath); return findings; },
detectText: (_content, filePath) => { calls.text.push(filePath); return findings; },
};
}
it('skips .blade.php with no config — the issue #316 repro', async () => {
const file = writeFixture('resources/views/card.blade.php', '<div class="bg-gradient-to-r">Hi</div>');
const det = recordingDetector([finding('gradient-text', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'extension');
assert.equal(det.calls.html.length + det.calls.text.length, 0);
});
it('scans a configured .blade.php through the html engine and emits findings', async () => {
writeExtensionsConfig([{ ext: '.blade.php' }]);
const file = writeFixture('resources/views/card.blade.php', '<div class="bg-gradient-to-r">Hi</div>');
const det = recordingDetector([finding('gradient-text', 1, { name: 'Gradient text' })]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /gradient-text/);
assert.equal(r.audit.emitted, true);
assert.equal(r.audit.ext, '.blade.php');
assert.deepEqual(det.calls.html, [file]);
assert.deepEqual(det.calls.text, []);
});
it('routes an engine:text entry through detectText instead', async () => {
writeExtensionsConfig([{ ext: '.blade.php', engine: 'text' }]);
const file = writeFixture('resources/views/card.blade.php', '<div>Hi</div>');
const det = recordingDetector([finding('text-overflow', 1)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.match(r.stdout, /text-overflow/);
assert.deepEqual(det.calls.text, [file]);
assert.deepEqual(det.calls.html, []);
});
it('emits a clean ack for configured html-engine files, stays quiet for text-engine ones', async () => {
writeExtensionsConfig([
{ ext: '.blade.php' },
{ ext: '.d.ts.hbs', engine: 'text' },
]);
const blade = writeFixture('resources/views/clean.blade.php', '<div>Hi</div>');
const rBlade = await runHook({ stdinJson: JSON.stringify(eventFor(blade)), env: {}, cwd, detector: recordingDetector([]) });
assert.match(rBlade.stdout, /No deterministic design-quality issues found/);
assert.equal(rBlade.audit.kind, 'clean');
const hbs = writeFixture('templates/types.d.ts.hbs', 'export type X = {{name}};');
const rHbs = await runHook({ stdinJson: JSON.stringify(eventFor(hbs)), env: {}, cwd, detector: recordingDetector([]) });
assert.equal(rHbs.stdout, '');
assert.equal(rHbs.audit.skipped, 'non-ui-ack');
});
});
describe('resolveProjectPlatform() / isNativePlatform()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('reads the platform from PRODUCT.md via the same resolution the skill uses', () => {
fs.writeFileSync(path.join(cwd, 'PRODUCT.md'), '# App\n\n## Platform\n\nios\n');
assert.equal(resolveProjectPlatform(cwd), 'ios');
});
it('returns null when PRODUCT.md is absent or platform-less', () => {
assert.equal(resolveProjectPlatform(cwd), null);
fs.writeFileSync(path.join(cwd, 'PRODUCT.md'), '# App\n\nno platform field\n');
assert.equal(resolveProjectPlatform(cwd), null);
});
it('isNativePlatform is true only for ios / android / adaptive', () => {
assert.equal(isNativePlatform('ios'), true);
assert.equal(isNativePlatform('android'), true);
assert.equal(isNativePlatform('adaptive'), true);
assert.equal(isNativePlatform('web'), false);
assert.equal(isNativePlatform(null), false);
});
});
describe('Cursor hook scripts', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
it('preToolUse denies proposed writes with detector findings before they land', () => {
const logPath = path.join(cwd, 'hook.ndjson');
const filePath = path.join(cwd, 'src/Card.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Write',
tool_input: {
file_path: filePath,
content: `
<style>
.card { border-left: 4px solid #7c3aed; border-radius: 16px; }
</style>
<div class="card">Hello</div>
`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: logPath },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /blocked this write/);
assert.match(payload.user_message, /side-tab/);
assert.match(payload.agent_message, /Triage each finding/);
assert.match(payload.agent_message, /Full suppression ladder/, 'the deny message carries the complete policy, not a truncated head');
assert.ok(payload.agent_message.length <= 4000, 'the deny message respects the Cursor cap');
const entries = fs.readFileSync(logPath, 'utf-8').trim().split('\n').map((line) => JSON.parse(line));
assert.equal(entries[0].event, 'preToolUse');
assert.equal(entries[0].blocked, true);
assert.equal(entries[0].blockedFindings, 1);
});
it('preToolUse delivers the stale-sidecar note within a 500-char budget (PR #508)', () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { limits: { maxChars: 500 } },
}));
const designMd = path.join(cwd, 'DESIGN.md');
const sidecarPath = path.join(cwd, '.impeccable', 'design.json');
fs.writeFileSync(designMd, `---
typography:
body:
fontFamily: "IBM Plex Sans, Arial, sans-serif"
colors:
ink: "#241f1a"
rounded:
"2xl": "80px"
---
# Design System
`);
fs.writeFileSync(sidecarPath, JSON.stringify({
extensions: {
colorMeta: {
accent: {
canonical: '#b8422e',
tonalRamp: ['#d55a42'],
},
},
roundedMeta: {
lg: { canonical: '24px' },
},
},
}));
const past = new Date(Date.now() - 10000);
fs.utimesSync(sidecarPath, past, past);
const filePath = path.join(cwd, 'src/Card.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
session_id: 'sid-508',
cwd,
tool_name: 'Write',
tool_input: {
file_path: filePath,
content: `
<style>
.card { border-left: 4px solid #7c3aed; border-radius: 16px; }
</style>
<div class="card">Hello</div>
`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.agent_message, /DESIGN\.md is newer/);
assert.ok(payload.agent_message.length <= 500, `deny message length ${payload.agent_message.length} exceeds 500-char budget`);
assert.equal(readCache(cwd).sessions['sid-508'].designNoteShown, true);
});
it('preToolUse allows writes with findings when the project platform is native', () => {
// Same slop content the deny test blocks, but the project declares a
// native platform, so the web rule engine must stand aside.
fs.writeFileSync(path.join(cwd, 'PRODUCT.md'), '# App\n\n## Platform\n\nios\n');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Write',
tool_input: {
file_path: path.join(cwd, 'src/Card.html'),
content: `
<style>
.card { border-left: 4px solid #7c3aed; border-radius: 16px; }
</style>
<div class="card">Hello</div>
`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
assert.deepEqual(JSON.parse(out), { permission: 'allow' });
});
it('preToolUse allows clean proposed writes', () => {
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Write',
tool_input: {
path: 'src/Card.jsx',
streamContent: 'export default function Card() { return <section className="card">Hello</section>; }',
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
assert.deepEqual(JSON.parse(out), { permission: 'allow' });
});
it('preToolUse gates configured template extensions (issue #316)', () => {
const filePath = path.join(cwd, 'resources/views/card.blade.php');
const content = `
<style>
.card { border-left: 4px solid #7c3aed; border-radius: 16px; }
</style>
<div class="card">Hello</div>
`;
const run = () => execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Write',
tool_input: { file_path: filePath, content },
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
// Without config the file is invisible to the gate: allowed untouched.
assert.equal(JSON.parse(run()).permission, 'allow');
// With a detector.extensions entry the same proposed write is scanned and denied.
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(path.join(cwd, '.impeccable', 'config.json'), JSON.stringify({
detector: { extensions: [{ ext: '.blade.php' }] },
}));
const payload = JSON.parse(run());
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /card\.blade\.php/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse routes configured html-engine templates through the HTML engine (issue #316)', () => {
// oversized-h1 is only detectable by the static HTML engine (detectText has
// no such rule), so a denial here proves the proposed content went through
// detectHtml rather than the old always-detectText path.
const filePath = path.join(cwd, 'resources/views/hero.blade.php');
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(path.join(cwd, '.impeccable', 'config.json'), JSON.stringify({
detector: { extensions: [{ ext: '.blade.php' }] },
}));
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Write',
tool_input: {
file_path: filePath,
content: '<style>h1 { font-size: 84px; }</style>\n<h1>This is a very long headline that keeps going on and on for a while</h1>',
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /oversized-h1/);
});
it('preToolUse denies shell heredoc writes that bypass the Write tool', () => {
const filePath = path.join(cwd, 'src/ShellCard.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Shell',
tool_input: {
command: `cat > "${filePath}" <<'EOF'\n<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style>\n<div class="card">Hello</div>\nEOF\n`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /ShellCard\.html/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse denies Python heredoc file writes that bypass the Write tool', () => {
const filePath = path.join(cwd, 'src/PythonCard.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Shell',
tool_input: {
command: `python3 - <<'PY'\nfrom pathlib import Path\npath = Path('${filePath}')\npath.write_text('''<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style>\n<div class="card">Hello</div>\n''', encoding='utf-8')\nPY\n`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /PythonCard\.html/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse denies shell append redirects that bypass the Write tool', () => {
const filePath = path.join(cwd, 'src/AppendedCard.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Shell',
tool_input: {
command: `cat >> "${filePath}" <<'EOF'\n<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style>\n<div class="card">Hello</div>\nEOF\n`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /AppendedCard\.html/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse denies shell tee writes that bypass the Write tool', () => {
const filePath = path.join(cwd, 'src/TeeCard.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Shell',
tool_input: {
command: `cat <<'EOF' | tee -a "${filePath}"\n<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style>\n<div class="card">Hello</div>\nEOF\n`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /TeeCard\.html/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse denies shell copy writes when copied content has detector findings', () => {
const sourcePath = path.join(cwd, 'src/SourceCard.html');
const destPath = path.join(cwd, 'src/CopiedCard.html');
fs.mkdirSync(path.dirname(sourcePath), { recursive: true });
fs.writeFileSync(sourcePath, `
<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style>
<div class="card">Hello</div>
`);
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Shell',
tool_input: {
command: `cp "${sourcePath}" "${destPath}"`,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /CopiedCard\.html/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse reconstructs Edit old_string/new_string into a full proposed file before scanning', () => {
const filePath = path.join(cwd, 'src/EditCard.html');
fs.mkdirSync(path.dirname(filePath), { recursive: true });
const oldString = '<div class="card">Hello</div>';
fs.writeFileSync(filePath, oldString);
const newString = '<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style>\n<div class="card">Hello</div>';
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Edit',
tool_input: {
file_path: filePath,
old_string: oldString,
new_string: newString,
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.permission, 'deny');
assert.match(payload.user_message, /EditCard\.html/);
assert.match(payload.user_message, /side-tab/);
});
it('preToolUse allows fragment-only edits instead of denying on partial context', () => {
const filePath = path.join(cwd, 'src/MissingEditCard.html');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
tool_name: 'Edit',
tool_input: {
file_path: filePath,
new_string: '<div style="border-left: 4px solid #7c3aed; border-radius: 16px;">Hello</div>',
},
}),
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
assert.deepEqual(JSON.parse(out), { permission: 'allow' });
});
it('preToolUse downgrades repeated identical denials to allow-with-warning after the edit threshold', () => {
const filePath = path.join(cwd, 'src/LoopCard.html');
const input = JSON.stringify({
hook_event_name: 'preToolUse',
cwd,
session_id: 'cursor-loop',
tool_name: 'Write',
tool_input: {
file_path: filePath,
content: '<style>.card { border-left: 4px solid #7c3aed; border-radius: 16px; padding: 16px; }</style><div class="card">Hello</div>',
},
});
let payload;
for (let i = 0; i < 7; i++) {
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input,
env: { ...process.env, IMPECCABLE_HOOK_LOG: '' },
encoding: 'utf-8',
});
payload = JSON.parse(out);
}
assert.equal(payload.permission, 'allow');
assert.match(payload.agent_message, /allowing this write to avoid a loop/);
const cache = readCache(cwd);
const denials = cache.sessions['cursor-loop'].files[filePath].cursorDenials;
assert.equal(Object.values(denials)[0], 7);
});
it('preToolUse honors truthy IMPECCABLE_HOOK_DISABLED values before stdin parsing', () => {
const logPath = path.join(cwd, 'hook.ndjson');
const out = execFileSync(process.execPath, [path.join('skill', 'scripts', 'hook-before-edit.mjs')], {
cwd: path.resolve('.'),
input: '{not-json',
env: {
...process.env,
IMPECCABLE_HOOK_DISABLED: 'true',
IMPECCABLE_HOOK_LOG: logPath,
},
encoding: 'utf-8',
});
assert.deepEqual(JSON.parse(out), { permission: 'allow' });
const entries = fs.readFileSync(logPath, 'utf-8').trim().split('\n').map((line) => JSON.parse(line));
assert.equal(entries[0].event, 'preToolUse');
assert.equal(entries[0].skipped, 'env-disabled');
});
});
describe('runHook() — emission enrichment', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function write(rel, content) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, content);
return abs;
}
it('returns emission.kind fresh with findings on new hits', async () => {
write('src/styles.css', 'h1 { background-clip: text; color: transparent; }');
const r = await runHook({
stdinJson: JSON.stringify({
session_id: 'emit-fresh',
cwd,
hook_event_name: 'PostToolUse',
file_path: path.join(cwd, 'src/styles.css'),
}),
env: { IMPECCABLE_HOOK_HARNESS: 'claude' },
cwd,
detector: fakeDetector([finding('gradient-text', 8)]),
});
assert.equal(r.emission?.kind, 'fresh');
assert.ok(Array.isArray(r.emission?.findings));
assert.equal(r.emission.findings.length, 1);
});
});
describe('runHook() — per-edit tiering', () => {
// The per-edit pass surfaces only IMMEDIATE_TIER_RULES; everything else is
// deferred to the Stop deep pass. See hook-lib.mjs for the tier rationale.
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function eventFor(file, sessionId = 'tier-sid') {
return {
session_id: sessionId,
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
}
function write(rel, body) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
it('splitFindingsByTier partitions on IMMEDIATE_TIER_RULES', () => {
const { immediate, deferred } = splitFindingsByTier([
finding('dark-glow', 1),
finding('marketing-buzzword', 2),
finding('low-contrast', 3),
finding('side-tab', 4),
]);
assert.deepEqual(immediate.map((f) => f.antipattern), ['dark-glow', 'low-contrast']);
assert.deepEqual(deferred.map((f) => f.antipattern), ['marketing-buzzword', 'side-tab']);
for (const f of immediate) assert.ok(IMMEDIATE_TIER_RULES.has(f.antipattern));
});
it('perEditTieringActive is on for claude, off for cursor/github and perEditRules:"all"', () => {
assert.equal(perEditTieringActive({ perEditRules: 'immediate' }, 'claude'), true);
assert.equal(perEditTieringActive({ perEditRules: 'all' }, 'claude'), false);
assert.equal(perEditTieringActive({ perEditRules: 'immediate' }, 'github'), false);
assert.equal(perEditTieringActive({ perEditRules: 'immediate' }, 'cursor'), false);
assert.equal(perEditTieringActive({ perEditRules: 'immediate' }, 'grok'), true);
assert.equal(perEditTieringActive({}, 'claude'), true);
});
it('surfaces immediate-tier findings per edit and defers copy-tier ones', async () => {
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([
finding('marketing-buzzword', 3),
finding('dark-glow', 5),
]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file)), env: {}, cwd, detector: det });
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /dark-glow/);
assert.doesNotMatch(r.stdout, /marketing-buzzword/);
assert.equal(r.audit.deferred, 1);
const cache = readCache(cwd);
assert.deepEqual(cache.sessions['tier-sid'].files[file].findings, ['dark-glow:5']);
});
it('emits a clean ack when all findings are deferred, and still marks the file touched', async () => {
const file = write('src/Copy.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 2)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file, 'tier-deferred-only')), env: {}, cwd, detector: det });
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.doesNotMatch(r.stdout, /marketing-buzzword/);
assert.equal(r.audit.deferred, 1);
// The touched-file entry is what lets the Stop deep pass find this file.
const cache = readCache(cwd);
assert.ok(cache.sessions['tier-deferred-only'].files[file], 'file should be marked touched');
assert.deepEqual(cache.sessions['tier-deferred-only'].files[file].findings || [], []);
});
it('config hook.perEditRules:"all" restores the full per-edit rule set', async () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { perEditRules: 'all' } }));
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 2)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file, 'tier-all')), env: {}, cwd, detector: det });
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /marketing-buzzword/);
assert.equal(r.audit.deferred, undefined);
});
it('github harness keeps the full rule set per edit (no Stop pass wired there)', async () => {
const file = write('src/Card.tsx', 'noop');
const githubEvent = {
sessionId: 'gh-tier',
cwd,
toolName: 'edit',
toolArgs: JSON.stringify({ path: file }),
};
const det = fakeDetector([finding('marketing-buzzword', 2)]);
const r = await runHook({ stdinJson: JSON.stringify(githubEvent), env: {}, cwd, detector: det });
assert.equal(r.audit.harness, 'github');
const out = JSON.parse(r.stdout);
assert.match(out.additionalContext, /marketing-buzzword/);
});
it('skips advisory findings per edit by default and never nags about them', async () => {
const file = write('src/Copy.tsx', 'noop');
const det = fakeDetector([finding('em-dash-overuse', 3)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file, 'adv-skip')), env: {}, cwd, detector: det });
// The only finding is advisory, so the file scans clean.
assert.match(r.stdout, /No deterministic design-quality issues found/);
assert.doesNotMatch(r.stdout, /em-dash-overuse/);
});
it('includes advisory findings per edit when detector.advisoryRules is "include"', async () => {
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
hook: { perEditRules: 'all' },
detector: { advisoryRules: 'include' },
}));
const file = write('src/Copy.tsx', 'noop');
const det = fakeDetector([finding('em-dash-overuse', 3)]);
const r = await runHook({ stdinJson: JSON.stringify(eventFor(file, 'adv-include')), env: {}, cwd, detector: det });
assert.match(r.stdout, /Design hook findings requiring review/);
assert.match(r.stdout, /em-dash-overuse/);
});
});
describe('runStopHook()', () => {
let cwd;
beforeEach(() => { cwd = mkTmp(); });
afterEach(() => fs.rmSync(cwd, { recursive: true, force: true }));
function write(rel, body) {
const abs = path.join(cwd, rel);
fs.mkdirSync(path.dirname(abs), { recursive: true });
fs.writeFileSync(abs, body);
return abs;
}
function editEvent(file, sessionId) {
return {
session_id: sessionId,
cwd,
hook_event_name: 'PostToolUse',
tool_name: 'Edit',
tool_input: { file_path: file },
};
}
function stopEvent(sessionId) {
return {
session_id: sessionId,
cwd,
hook_event_name: 'Stop',
stop_hook_active: false,
};
}
it('runs the full rule set over touched files and dedupes per-edit-surfaced findings', async () => {
const sid = 'stop-sid';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([
finding('dark-glow', 5),
finding('marketing-buzzword', 3),
finding('side-tab', 7),
]);
// Per-edit pass: surfaces dark-glow, defers the other two.
const edit = await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
assert.match(edit.stdout, /dark-glow/);
assert.doesNotMatch(edit.stdout, /marketing-buzzword/);
// Stop deep pass: surfaces exactly the deferred remainder.
const stop = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(stop.exitCode, 0);
assert.equal(stop.audit.emitted, true);
const out = JSON.parse(stop.stdout);
assert.equal(out.hookSpecificOutput.hookEventName, 'Stop');
assert.match(out.hookSpecificOutput.additionalContext, /marketing-buzzword/);
assert.match(out.hookSpecificOutput.additionalContext, /side-tab/);
assert.doesNotMatch(out.hookSpecificOutput.additionalContext, /dark-glow/);
assert.equal(stop.emission.kind, 'stop-deep-pass');
});
it('keeps a policy footer when the grouped Stop render is clamped to the minimum budget', async () => {
const sid = 'stop-clamp';
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({ hook: { limits: { maxChars: 500 } } }));
const a = write('src/A.tsx', 'noop');
const b = write('src/B.tsx', 'noop');
const det = fakeDetector([finding('side-tab', 1, { name: 'X', description: 'y'.repeat(2000) })]);
// Two touched files with deferred findings so the Stop pass groups them.
await runHook({ stdinJson: JSON.stringify(editEvent(a, sid)), env: {}, cwd, detector: det });
await runHook({ stdinJson: JSON.stringify(editEvent(b, sid)), env: {}, cwd, detector: det });
const stop = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(stop.audit.emitted, true);
const ctx = JSON.parse(stop.stdout).hookSpecificOutput.additionalContext;
assert.ok(ctx.length <= 500, `grouped emission honors maxChars (got ${ctx.length})`);
assert.match(ctx, /Triage per the session policy/, 'a clamped grouped emission still carries the policy');
assert.match(ctx, /\[side-tab\]/, 'a clamped grouped emission keeps finding detail, not just a file header');
});
it('exits silent and fast when the session touched no UI files', async () => {
const r = await runStopHook({ stdinJson: JSON.stringify(stopEvent('stop-untouched')), env: {}, cwd });
assert.equal(r.exitCode, 0);
assert.equal(r.stdout, '');
assert.equal(r.audit.skipped, 'no-touched-files');
});
it('skips out-of-project files even when an older cache still lists them', async () => {
// Caches written before the containment gate can hold scratchpad paths.
// The deep pass re-checks containment instead of trusting the per-edit
// pass to have filtered them.
const sid = 'stop-outside';
const scratch = fs.mkdtempSync(path.join(os.tmpdir(), 'impeccable-scratch-'));
try {
const outside = path.join(scratch, 'landing.html');
fs.writeFileSync(outside, '<h1>throwaway</h1>');
persistCache(cwd, {
version: 1,
sessions: { [sid]: { updatedAt: Date.now(), files: { [outside]: { editCount: 1, findings: [] } } } },
});
const det = fakeDetector([finding('side-tab', 7)]);
const stop = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(stop.stdout, '');
assert.equal(stop.audit.skipped, 'stop-clean');
assert.equal(stop.audit.scannedFiles, 0);
} finally {
fs.rmSync(scratch, { recursive: true, force: true });
}
});
it('a second Stop fire is silent: deep-pass findings are remembered', async () => {
const sid = 'stop-twice';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 3)]);
await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
const first = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.match(first.stdout, /marketing-buzzword/);
const second = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(second.stdout, '');
assert.equal(second.audit.skipped, 'stop-clean');
});
it('stays silent when detector.ignoreRules filters away every touched finding', async () => {
const sid = 'stop-ignored';
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: { ignoreRules: ['marketing-buzzword'] },
}));
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 3)]);
await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
const stop = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(stop.stdout, '');
assert.equal(stop.audit.skipped, 'stop-clean');
});
it('skips advisory findings in the deep pass by default', async () => {
const sid = 'stop-advisory';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('em-dash-overuse', 3)]);
await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
const stop = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
// Silent either way: the advisory finding is dropped at the per-edit pass, so
// the file is never recorded as touched, and the deep pass has nothing to say.
assert.equal(stop.stdout, '');
assert.ok(['stop-clean', 'no-touched-files'].includes(stop.audit.skipped));
});
it('surfaces advisory findings in the deep pass when advisoryRules is "include"', async () => {
const sid = 'stop-advisory-include';
fs.mkdirSync(path.join(cwd, '.impeccable'), { recursive: true });
fs.writeFileSync(getConfigPath(cwd), JSON.stringify({
detector: { advisoryRules: 'include' },
}));
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('em-dash-overuse', 3)]);
await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
const stop = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(stop.audit.emitted, true);
const out = JSON.parse(stop.stdout);
assert.match(out.hookSpecificOutput.additionalContext, /em-dash-overuse/);
});
it('re-invoked with stop_hook_active:true exits 0 and silent even with pending findings (issue #400)', async () => {
const sid = 'stop-active';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 3)]);
// Prime a real touched-file + finding so a plain Stop pass would fire.
await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
// Re-invocation after the previous fire kept the turn alive: the contract
// says exit clean, no re-block, before scanning.
const active = { ...stopEvent(sid), stop_hook_active: true };
const stop = await runStopHook({ stdinJson: JSON.stringify(active), env: {}, cwd, detector: det });
assert.equal(stop.exitCode, 0);
assert.equal(stop.stdout, '');
assert.equal(stop.audit.emitted, undefined);
assert.equal(stop.audit.skipped, 'stop-hook-active');
});
it('stop_hook_active:false or absent still runs the deep pass as before', async () => {
const sid = 'stop-inactive';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 3)]);
await runHook({ stdinJson: JSON.stringify(editEvent(file, sid)), env: {}, cwd, detector: det });
// Explicit false (the stopEvent default).
const explicitFalse = await runStopHook({ stdinJson: JSON.stringify(stopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(explicitFalse.audit.emitted, true);
assert.match(explicitFalse.stdout, /marketing-buzzword/);
// Field absent entirely (legacy / non-Claude-Code payloads): same behavior.
const sid2 = 'stop-absent';
const file2 = write('src/Card2.tsx', 'noop');
await runHook({ stdinJson: JSON.stringify(editEvent(file2, sid2)), env: {}, cwd, detector: det });
const ev = stopEvent(sid2);
delete ev.stop_hook_active;
const absent = await runStopHook({ stdinJson: JSON.stringify(ev), env: {}, cwd, detector: det });
assert.equal(absent.audit.emitted, true);
assert.match(absent.stdout, /marketing-buzzword/);
});
it('honors kill switches and the re-entrancy guard', async () => {
const disabled = await runStopHook({
stdinJson: JSON.stringify(stopEvent('stop-killed')),
env: { IMPECCABLE_HOOK_DISABLED: '1' }, cwd,
});
assert.equal(disabled.audit.skipped, 'env-disabled');
const reentrant = await runStopHook({
stdinJson: JSON.stringify(stopEvent('stop-reentrant')),
env: { IMPECCABLE_HOOK_DEPTH: '1' }, cwd,
});
assert.equal(reentrant.audit.reentrant, true);
assert.equal(reentrant.stdout, '');
});
function grokEditEvent(file, sessionId) {
return {
hookEventName: 'post_tool_use',
sessionId,
cwd,
workspaceRoot: `${cwd}/`,
toolName: 'search_replace',
toolInput: { file_path: file, old_string: 'a', new_string: 'b' },
toolResult: { type: 'SearchReplace' },
};
}
function grokStopEvent(sessionId, reason = 'end_turn') {
return {
hookEventName: 'stop',
sessionId,
cwd,
workspaceRoot: `${cwd}/`,
reason,
stopHookActive: false,
};
}
it('Grok Stop end_turn runs the deep pass over files warmed by camelCase PostToolUse (#646)', async () => {
const sid = 'grok-stop-sid';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([
finding('dark-glow', 5),
finding('marketing-buzzword', 3),
]);
const edit = await runHook({ stdinJson: JSON.stringify(grokEditEvent(file, sid)), env: {}, cwd, detector: det });
assert.equal(edit.audit.harness, 'grok');
assert.match(edit.stdout, /dark-glow/);
assert.doesNotMatch(edit.stdout, /marketing-buzzword/);
const stop = await runStopHook({ stdinJson: JSON.stringify(grokStopEvent(sid)), env: {}, cwd, detector: det });
assert.equal(stop.exitCode, 0);
assert.equal(stop.audit.harness, 'grok');
assert.equal(stop.audit.session, sid);
assert.equal(stop.audit.emitted, true);
const out = JSON.parse(stop.stdout);
assert.equal(out.hookSpecificOutput.hookEventName, 'Stop');
// Grok discarded the per-edit stdout, so Stop must still carry the
// immediate-tier finding as well as the deferred remainder.
assert.match(out.hookSpecificOutput.additionalContext, /dark-glow/);
assert.match(out.hookSpecificOutput.additionalContext, /marketing-buzzword/);
});
it('Grok Stop shutdown is observe-only and does not emit a second deep pass (#646)', async () => {
const sid = 'grok-shutdown';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('dark-glow', 5)]);
await runHook({ stdinJson: JSON.stringify(grokEditEvent(file, sid)), env: {}, cwd, detector: det });
const stop = await runStopHook({
stdinJson: JSON.stringify(grokStopEvent(sid, 'shutdown')),
env: {}, cwd, detector: det,
});
assert.equal(stop.exitCode, 0);
assert.equal(stop.stdout, '');
assert.equal(stop.audit.skipped, 'stop-reason');
assert.equal(stop.audit.reason, 'shutdown');
});
it('Grok stopHookActive:true exits silent after camelCase normalize (#646)', async () => {
const sid = 'grok-active';
const file = write('src/Card.tsx', 'noop');
const det = fakeDetector([finding('marketing-buzzword', 3)]);
await runHook({ stdinJson: JSON.stringify(grokEditEvent(file, sid)), env: {}, cwd, detector: det });
const active = { ...grokStopEvent(sid), stopHookActive: true };
const stop = await runStopHook({ stdinJson: JSON.stringify(active), env: {}, cwd, detector: det });
assert.equal(stop.exitCode, 0);
assert.equal(stop.stdout, '');
assert.equal(stop.audit.skipped, 'stop-hook-active');
});
it('hook.mjs routes Grok camelCase stop stdin into runStopHook (#646)', async () => {
const sid = 'grok-script-stop';
const file = write('src/hero.css', [
'.hero {',
' background: linear-gradient(#f00, #00f);',
' -webkit-background-clip: text;',
' color: transparent;',
'}',
'',
].join('\n'));
const edit = await runHook({ stdinJson: JSON.stringify(grokEditEvent(file, sid)), env: {}, cwd });
assert.equal(edit.audit.harness, 'grok');
assert.equal(edit.audit.emitted, true);
const env = { ...process.env };
delete env.IMPECCABLE_HOOK_DEPTH;
delete env.CLAUDE_HOOK_DEPTH;
const out = execFileSync(process.execPath, [path.resolve('skill/scripts/hook.mjs')], {
cwd,
input: JSON.stringify(grokStopEvent(sid)),
env,
encoding: 'utf-8',
});
const payload = JSON.parse(out);
assert.equal(payload.hookSpecificOutput.hookEventName, 'Stop');
assert.match(payload.hookSpecificOutput.additionalContext, /gradient-text/);
});
});