auto-harness-skill

Diagnose and strengthen a repository's harness layer: AGENTS.md rules, structured knowledge layout, architecture boundaries, lint and type gates, API and generated-client contracts, test scaffolding, language-specific verification completeness, doc/code bindings, file-size budgets, structured logging, and technical-debt tracking. Use when Codex needs to audit drift-prone semantics that are repeated across code, docs, schemas, generated artifacts, frontend/backend boundaries, or CI, then design or implement guardrails with progressive disclosure, non-guess verification, bidirectional doc/code alignment, and zero-tolerance contract checks.