Fable-style spec + evidence gate for Claude Code + Codex. Makes Opus/Codex work under Fable-like discipline: blocks every edit until a deterministic spec passes, and there is no "done" without live acceptance evidence. Spec-first, verification-gated, forbidden-paths enforced.
hooks fable opus codex guardrails llm ai-coding claude-code swe-bench spec-driven-development spec-first agent-harness llm-harness evidence-gate verification-gate opus-4-8 claude-fable-5 fable-5 claude-fable ai-agent-guardrails
-
Updated
Jun 30, 2026 - Python