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How to map project structure and component progress from PLAN.md with Agenttrail

Use Agenttrail Map to see which components are changing, with progress from a PLAN.md file.

Who it is forA developer or tech lead who wants a project overview showing which parts of the codebase are being touched and how far each component has progressed.

The problemIt is hard to see how planned components relate to the files an agent is actually changing across a project.

The outcomeA local map with a live file tree, dependency links and component status drawn from PLAN.md and observed file changes.

What you need first

  • Node.js 20 or newer
  • A browser with WebGL
  • A local project folder (a git repo and PLAN.md are optional)

Steps

  1. Change into your repo folder with cd your-repo.
  2. Run npx agenttrail init and review the setup it proposes before accepting it.
  3. Give your agent the backfill prompt from the board so it adds the convention to CLAUDE.md and AGENTS.md and creates a starter plan.
  4. Run npx agenttrail to open the Map.
  5. Check that completed components light up when their files change again.

Prompt for your agent

In the repo <repo-path>, run `npx agenttrail init`, review the setup, and create a starter PLAN.md that uses stable {#id} component values. Report the list of files the setup wrote. Verify that the Map shows each component with its status marker ([~], [x] or [!]) after running `npx agenttrail`.

Caveat. Setup writes CLAUDE.md, AGENTS.md, a starter plan and a .gitignore entry, so review the proposed changes before running init in a repo you care about.

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