fix: normalize quoted user-invocable frontmatter (#87)

* fix: normalize quoted user-invokable frontmatter

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

* fix: preserve quoted non-boolean frontmatter values

Only normalize quoted booleans for the user-invocable frontmatter flag so other quoted fields like argument-hint and description continue to round-trip as plain strings.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

---------

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

scripts/lib/utils.js

@@ -101,13 +101,19 @@ export function parseFrontmatter(content) {
       if (colonIndex > 0) {
         const key = trimmed.slice(0, colonIndex).trim();
         const value = trimmed.slice(colonIndex + 1).trim();
+        const isQuoted = /^(".*"|'.*')$/.test(value);
+        const unquotedValue = isQuoted ? value.slice(1, -1) : value;
+        const shouldCoerceBoolean =
+          key === 'user-invocable' || key === 'user-invokable' || !isQuoted;
 
         if (value) {
-          // Strip YAML quotes
-          const unquoted = (value.startsWith('"') && value.endsWith('"')) || (value.startsWith("'") && value.endsWith("'"))
-            ? value.slice(1, -1)
-            : value;
-          frontmatter[key] = unquoted === 'true' ? true : unquoted === 'false' ? false : unquoted;
+          frontmatter[key] = shouldCoerceBoolean
+            ? unquotedValue === 'true'
+              ? true
+              : unquotedValue === 'false'
+                ? false
+                : unquotedValue
+            : unquotedValue;
           currentKey = key;
           currentArray = null;
         } else {

tests/lib/utils.test.js

@@ -89,7 +89,7 @@ Body.`;
     expect(result.frontmatter['user-invocable']).toBe(true);
   });
 
-  test('should parse user-invocable as string true (code behavior)', () => {
+  test('should parse quoted user-invocable boolean as true', () => {
     const content = `---
 name: test-skill
 user-invocable: 'true'
@@ -98,10 +98,21 @@ user-invocable: 'true'
 Body.`;
 
     const result = parseFrontmatter(content);
-    // parseFrontmatter strips YAML quotes, so 'true' becomes boolean true
     expect(result.frontmatter['user-invocable']).toBe(true);
   });
 
+  test('should keep quoted non-user-invocable booleans as plain strings', () => {
+    const content = `---
+name: test-skill
+description: 'true'
+---
+
+Body.`;
+
+    const result = parseFrontmatter(content);
+    expect(result.frontmatter.description).toBe('true');
+  });
+
   test('should parse allowed-tools field', () => {
     const content = `---
 name: test-skill
@@ -393,6 +404,25 @@ description: Run technical quality checks
 user-invocable: true
 ---
 
+Audit the code.`;
+
+    const skillDir = path.join(testRootDir, 'source/skills/audit');
+    ensureDir(skillDir);
+    fs.writeFileSync(path.join(skillDir, 'SKILL.md'), skillContent);
+
+    const { skills } = readSourceFiles(testRootDir);
+
+    expect(skills).toHaveLength(1);
+    expect(skills[0].userInvocable).toBe(true);
+  });
+
+  test('should read skill with quoted user-invocable flag', () => {
+    const skillContent = `---
+name: audit
+description: Run technical quality checks
+user-invocable: 'true'
+---
+
 Audit the code.`;
 
     const skillDir = path.join(testRootDir, 'source/skills/audit');