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John SmithandClaude Code a138b13668 feat: agentic-gates — mechanical quality-gate marketplace for Claude Code
Multi-plugin marketplace of forced mechanical gates (the Turnstile): agents
cannot end a turn with mechanically failing code. Verdicts are deterministic
CLI results — never LLM-judged.

- core/gate: stdlib-only dispatcher (Python 3.11+) with SARIF-lite finding
  protocol (content-based fingerprints, line-drift proof), policy loader with
  includes/tiers, tool-chain resolver with fallback order + explicit DEGRADED
  verdicts, verdict cache, ratchet baseline, expiring waivers, guard-the-guard,
  loop-guard, turn ledger, doctor, report
- 14 tool adapters: py_ast, ruff_format/check, secret_scan, node_check, tsc,
  oxlint, biome_*, prettier, ty, pyright, mypy, gitleaks (pure parsers, unit-
  testable without the tools installed)
- packs: gates-essential (engine + all enforcement hooks + commands),
  gates-polyglot/security/strict (declarative content packs, registration-only
  hooks, dependencies on the engine — multi-fire structurally prevented)
- Quality Ladder wiring: L0 PostToolUse (format/syntax/secrets, unchanged-hash
  fast path), L1 PostToolBatch (lint+types), L2 Stop turnstile with loop-guard,
  L3 gate check for CI parity
- 56 tests: unit + golden-stdin hook contracts + packaging invariants +
  registration idempotence; manifest validator; seed fixtures
- Spike results: H4 ratchet PASSED (0 false blocks / 10-10 caught); H2 partial
  falsification recorded (unchanged-hash <15ms unreachable at ~51ms p95 with
  per-edit CPython spawn — escalation path documented)
- Design history: .research/brainstorm_20260926T1835.md (dialectic + tool matrix)

Co-Authored-By: Claude Code <[email protected]>
2026-09-26 19:35:51 -04:00
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