When impeccable (or any agent tool) is installed into a project's
.claude/.cursor/.codex tree, a root scan descended into the vendored skill
code and reported the detector's own example strings as findings, and
context-signals returned installed-skill files as scan candidates whenever
the harness tree appeared in the branch diff (issue #303).
Rather than growing SKIP_DIRS by a denylist of harness names that drifts
as new tools appear, the walker now skips every hidden directory during
recursion — which already covered .git/.next/.nuxt/.svelte-kit/.turbo/
.vercel, and covers all present and future harness installs plus
.impeccable itself. SKIP_DIRS shrinks to the four non-hidden entries.
An explicitly passed hidden target still scans: only child entries are
name-checked, never the root the walker is given.
scanTargets() applies the same rule to git-changed files (directory
segments only, so root dotfiles keep their existing behavior), and falls
through to source-dir targeting when the only dirty files are vendored.
Prepared with AI assistance (Claude Code), directed by @pbakaus.
Co-Authored-By: Claude Code <noreply@anthropic.com>