ianshankianshank/Agents/skills/e2e-matrix-sentinel/SKILL.md

e2e-matrix-sentinel

Skill1 starsChanged 58 days agoApache-2.0View on GitHub

Validate cross-platform end-to-end matrix coverage, verify POSIX and Windows driver parity, and enforce offline fixture restamping invariants. Use whenever running end-to-end matrix suites, checking e2e driver parity, or validating matrix coverage freshness.

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SKILL.md

E2E Matrix Sentinel — Cross-Platform E2E & Matrix Coverage Guard

The e2e-matrix-sentinel guarantees driver parity, registry matrix completeness, and artifact freshness across Windows and POSIX environments.

Invariants

Driver Parity (Derive-Never-Allowlist): scripts/run_all_e2e.sh and scripts/run_all_e2e.ps1 must declare the exact same set of steps. Any step added to one driver without the other violates cross-platform CI safety.
Matrix Coverage Freshness: docs/matrix-coverage.md must match python tests/test_matrix_coverage.py --check at all times.
Offline Restamping Separation: Live E2E runs (such as docs/e2e-live-journey.md) must never be used to restamp offline evaluation fixtures or 0–10 score cells (OfflineRestampConfig).

Usage

Run All Sentinel Checks

python skills/e2e-matrix-sentinel/scripts/sentinel.py --check

Verify Driver Parity Specifically

python -m pytest tests/test_e2e_driver_parity.py -v

Check Matrix Completeness & Coverage Freshness

python tests/test_matrix_coverage.py --check

Definition of Done

Driver parity between run_all_e2e.sh and run_all_e2e.ps1 is 100% verified.
docs/matrix-coverage.md is fresh and conforms to the plugin registry census.
Sentinel CLI passes with exit code 0.

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