Backend Testing

Use this skill as a packet-first backend testing router.

The job is not to dump boilerplate for every framework. The job is to:

1. classify the request into the right backend test packet,
2. pick the smallest credible mix of test layers,
3. make dependency realism and data control explicit,
4. split local vs PR vs slower lanes honestly,
5. route policy, contract-shape, and auth-implementation work away when they are the real task.

Read these when needed:

• references/intake-packets-and-route-outs.md
• references/test-layer-matrix.md
• references/stability-checklist.md