Repo C Shim Contract Checks

Repo C Shim Contract Checks

Use this skill for shim endpoint contract safety.

Contract Requirements

• Runtime features requiring telemetry must fail closed when shim is unavailable.
• REPO_B_SIDECAR_URL config path remains explicit.
• CI-facing integration tests use mock shim fixtures, not real hardware.
• Do not mask core import failures with pytest.importorskip().
• Audio and RAG routes tied to shim-backed services must keep closed-fallback behavior when sidecar signals are missing.
• Maintain stable payload contracts for GET /health, /telemetry, /audio, and /rag endpoints when fail-closed gates engage.

Validation Commands

Run from <PRIVATE_REPO_C> root:

ruff check .
pytest -q

For focused shim contract review:

python - <<'PY'
from pathlib import Path
import re
patterns = [
    'REPO_B_SIDECAR_URL',
    'importorskip',
    'requires_real_sidecar',
    '/health',
    '/telemetry',
    '/audio',
    '/rag',
]
roots = ['AGENTS.md', 'tests', 'src', 'repo-c', 'repo_c_trace', 'ranking_engine']
for root in roots:
    p = Path(root)
    if not p.exists():
        continue
    for file in p.rglob('*'):
        if not file.is_file():
            continue
        if file.suffix.lower() not in {'.py', '.md', '.yml', '.yaml', '.json'}:
            continue
        text = file.read_text(encoding='utf-8', errors='ignore')
        for pattern in patterns:
            if re.search(pattern, text):
                break
        else:
            continue
        print(file)
PY
curl -s http://127.0.0.1:9000/health
curl -s http://127.0.0.1:9000/telemetry
curl -s http://127.0.0.1:9000/api/rag/status

Scope Boundary

Use this skill only for the repo-c-shim-contract-checks lane and workflow defined in this file and its references.

Do not use this skill for unrelated lanes; route those through $skill-hub and the most specific matching skill.

Reference

• references/shim-contract.md

Loopback

If this lane is unresolved, blocked, or ambiguous:

1. Capture the failing endpoint and test evidence.
2. Route back through $skill-hub for chain recalculation.
3. Resume only after the updated chain returns a deterministic next step.

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