Update Prd

Update PRD

Trigger

User finished building a feature and wants to update the PRD to match reality.

Workflow

1. Find the relevant PRD:
   • Ask the user which document to update.
   • Or search using search_documents.
   • Also check the local prd/ directory.
2. Fetch the current PRD content using get_document.
3. Analyze what was actually built:
   • Review the git diff against the base branch.
   • Identify the key implementation decisions.
4. Compare the implementation against the original spec and note:
   • Requirements that were implemented as specified
   • Deviations and the reasons behind them
   • Scope that was deferred or cut
   • New edge cases or considerations discovered during implementation
5. Draft update instructions that:
   • Mark completed requirements
   • Document deviations with rationale
   • Add a "What was actually built" section if significant changes were made
   • Move deferred items to a "Future work" section
6. Update the document in ChatPRD using update_document.
7. Update the local copy in prd/ to stay in sync.

Guardrails

• Preserve the original PRD structure — add to it, don't rewrite it.
• Be honest about deviations — they're documentation, not failures.
• Keep the update concise and factual.

Output

• Updated PRD in ChatPRD
• Updated local copy in prd/
• Summary of changes made to the document

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