Update Code-Spec - Capture Executable Contracts

When you learn something valuable (from debugging, implementing, or discussion), use this to update the relevant code-spec documents.

Timing: After completing a task, fixing a bug, or discovering a new pattern

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Code-Spec First Rule (CRITICAL)

In this project, "spec" for implementation work means code-spec:

• Executable contracts (not principle-only text)
• Concrete signatures, payload fields, env keys, and boundary behavior
• Testable validation/error behavior

If the change touches infra or cross-layer contracts, code-spec depth is mandatory.

Mandatory Triggers

Apply code-spec depth when the change includes any of:

• New/changed command or API signature
• Cross-layer request/response contract change
• Database schema/migration change
• Infra integration (storage, queue, cache, secrets, env wiring)

Mandatory Output (7 Sections)

For triggered tasks, include all sections below:

1. Scope / Trigger
2. Signatures (command/API/DB)
3. Contracts (request/response/env)
4. Validation & Error Matrix
5. Good/Base/Bad Cases
6. Tests Required (with assertion points)
7. Wrong vs Correct (at least one pair)

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When to Update Code-Specs