What it may solve
Zero-config lint feedback loop: lint_diagnostics / lint_workspace_errors / lint_fix tools driven by the eslint / biome / ruff already present in the repo (auto-detected from config files, repo-local node_modules/.bin resolved first, nothing bundled), plus an auto-injected post-edit findings delta wired to the harness fs/observed event — edit → lint → auto-repair with one lint_fix call for dsh agents.
Imported third-party catalog description; not a Registry verification conclusion.