opencode-githubrepo

OpenCode plugin for semantic code search across GitHub repositories using Copilot's embeddings index.

• Searches any GitHub repository you have access to using semantic/embedding-based search
• Returns ranked code snippets with file paths, line numbers, and similarity scores
• Automatically triggers indexing for repositories that haven't been indexed yet
• Supports branch search via persistent shadow repos

• GitHub Copilot OAuth via OpenCode: run oc auth login and choose github-copilot.

Auth file resolution (first hit wins):

Fork users: if the wrapper exports XDG_DATA_HOME, step 3 is enough. If githubrepo still fails to authenticate, set step 1 or 2 to your fork auth file, e.g. ~/.local/share/opencode-fork/opencode/auth.json.

{
  "plugin": ["@lkonga/opencode-githubrepo"]
}

If you want the /githubrepo TUI command, also add to tui.json:

{
  "plugin": ["@lkonga/opencode-githubrepo"]
}

If you don't want to install with npm, use file:// paths. Add to opencode.json:

{
  "plugin": ["file:///path/to/opencode-githubrepo/index.ts"]
}

And to tui.json for the /githubrepo TUI command:

{
  "plugin": ["file:///path/to/opencode-githubrepo/tui.ts"]
}

Ask the AI to search a GitHub repo:

"Search the facebook/react repo for reconciler fiber scheduling" "Find how BusEvent is defined in the opencode repo"

Ported from the patch-githubrepo.ts fork patch in opencode-patches. The original implementation was injected directly into the opencode source tree; this plugin version uses the official OpenCode plugin API and requires no source modifications.