WP-215 — shared lint helpers

Engineering log · Phase 19 — Codebase audit remediation

🔗 Depends on WP-214 · Needed by WP-216

⬅️ WP-214 · Roadmap · WP-216 ➡️

WP-215 — shared lint helpers

Finding. K3’s remaining tooling duplication was fence state tracking in the doctest and WP-link audits, seven script-local repository-root definitions and the docs-site audit’s recursive Markdown walk. The existing common helpers already owned root resolution, sorted recursive walks and the standard counted failure report.

Change. A private shared fence tracker toggles state using each caller’s existing regular expression, retaining the doctest audit’s language and closing-blank checks and the WP-link audit’s tilde and blockquote handling. The seven scripts import their root from the appropriate common module, retaining a patchable module attribute. The docs-site audit uses the shared sorted walk. Standard counted failure reports already use the common reporter; specialized license, frozen-manifest and commit-trailer reports retain their distinct wording. Test-local root constants remain unchanged. No hook or output format changes.

Verification.

• CPU. make gate green on this commit's tree. scripts/_tests remains unchanged; its existing doctest-fence, WP-link, docs-site, frozen-manifest, commit-trailer, README, release-guard, overfit and shapes-regression assertions cover the affected callers. The FenceTracker doctest exercises language retention, ordinary lines and quoted mixed-delimiter toggles. No new test functions or hooks.
• Ownership. Only the two common owners define a script-level REPO_ROOT; the other matches are unchanged test-fixture constants. Only the lint common helper calls rglob. Specialized failure formats remain local because the counted reporter cannot reproduce them byte for byte.