pantheon-ai/implementation-planner
Converts a PRD or requirements document into a structured, phased implementation plan with individual phase files and granular per-task files written to .context/plans/. Also restructures existing monolithic planning documents into digestible, hierarchical directory structures. Creates a root plan index summarising all phases, a numbered phase file per phase, and a numbered task file per task inside each phase directory.
92
93%
Does it follow best practices?
Impact
91%
3.25xAverage score across 5 eval scenarios
Passed
No known issues
task.mdevals/scenario-1/
Task: Create an implementation plan for a URL Shortener service
You have been given the following product requirements. Create a complete implementation plan for this project.
Requirements
Build a URL Shortener web service with the following capabilities:
- Accept a long URL via a REST API and return a short code
- Redirect short codes to their original URLs via HTTP 301/302
- Track click counts per short code
- Persist data in SQLite
- Expose a health check endpoint
- Provide a minimal HTML form for manual testing
Constraints
- Runtime: Node.js with TypeScript
- No external authentication required
- Short codes must be URL-safe (alphanumeric only)
- The service must start with
npm start - All tests must run with
npm test
What to produce
Create a complete implementation plan under .context/plans/ for this project. The plan should cover all work from bootstrapping the project through to a production-ready release.