Guard Rails

Deterministic pre-commit and post-implementation checks that simulate hooks. Run automatically at the end of implement-task Phase 5 (verify build) and before any commit.

Why This Exists

Claude Code has hooks — deterministic shell commands that run on events regardless of model behavior. We don't have hooks, so we simulate them with a mandatory checklist that the implementation skills call. This makes verification deterministic rather than probabilistic.

When to Run

• Called by implement-task at the end of Phase 5 (verify build)
• Called by implement-and-review-loop before Phase 5 (present final state)
• Can be invoked standalone: "run guard-rails"

Checks

1. Build Gate (hard fail — blocks commit)

Run ALL applicable builds. Any failure blocks the commit.