Keep the actual tests; remove the meta-ceremony around them.
- Delete the `proof-gate-tracker` bin (tools/proof-gate-tracker.rs + its
Cargo.toml [[bin]] entry): it was a status reporter that re-checked golden
fixtures the real tests already cover — not a test itself.
- Delete tools/README.md (its only subject was the tracker + a duplicate handoff
template; tools/ is now empty).
- AGENTS.md: drop the "Proof gate tracker" and "Platform matrix" bullets from
the Multiagent Workflow ritual.
Kept: tests/platform-matrix.rs (a real `cargo test`, still runs under
`cargo test --workspace`), the external MCP smoke, and all unit/integration
tests. The anti-fixed-count guidance in AGENTS.md already stands.
Checks: cargo metadata OK; ./scripts/check-format.sh clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>