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How to find a solution you already built in another repo with Heimdall

Run one ranked search across every project to see if you already solved the problem.

Who it is forA developer with many side projects who is about to write code that may already exist in an older repository.

The problemSearching for past work with grep, find and ls across many folders takes minutes and often points to the wrong repo.

The outcomeA ranked list of matching paths across all indexed projects, each with a verdict, so you can reuse the work or skip the rebuild.

What you need first

  • Node.js with npm, to run `npm i -g @arihantdeva/heimdall`
  • macOS or a Debian, Ubuntu, Fedora or Amazon Linux machine, with the build prerequisites listed in the README for the graft backend
  • git, because llama.cpp is cloned at first build
  • A supported agent harness: pi, Claude Code, Codex, Cursor, Windsurf, or opencode

Steps

  1. npm i -g @arihantdeva/heimdall
  2. heimdall init --harness claude-code
  3. heimdall setup
  4. heimdall doctor
  5. heimdall search "<topic>" (inferred, check the README)

Prompt for your agent

Using the heimdall CLI from the ArihantDeva/heimdall repo, run `heimdall search "<topic>"` before writing new code for <topic>. Report each hit as a line with its verdict (STRONG, WEAK, REBUILT, STALE or REMOVED) and its path. Expected output is a ranked list of paths; check that each STRONG path exists on disk before reusing it.

Caveat. The README says `npm i -g` builds the graft backend during install only when prerequisites are present, and the first build takes a few minutes, so search will not work until setup completes.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for ArihantDeva/heimdall and "Find a solution you already built in another repo"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

Cursor, ChatGPT, others

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