Spec Forge Implement

Use this stage after readiness passes to perform the implementation work and record its outcome in the per-spec implementation report.

This stage answers: what changed, whether implementation is complete, which validations ran, and whether any blockers remain.

Shared Operating Rules

• This skill runs only in Plan mode. If the runtime is not Plan mode, stop and tell the user to switch before continuing.
• Confirm both chat language and file language before implementation work or implementation-report updates.
• Keep decisions and status updates in chat. YAML remains the persisted source of truth, but the user should not need to inspect files directly.
• Report implementation progress and completion from chat summaries rather than file review.