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Connect Lark to GitHub to do two things from your repos:
  • Investigate issues — Comment /investigate on a GitHub issue and Lark posts a structured investigation report back on the thread.
  • Propose tests on PRs — Add .github/workflows/lark.yml so Lark can propose new end-to-end tests when pull requests open.

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Setup

  1. Open Settings → Integrations in the dashboard.
  2. Click Connect on the GitHub card.
  3. Install the Lark GitHub App and choose which repositories Lark can access.
  4. After install, open Configure → Manage repos to add .github/workflows/lark.yml to each repo you want test proposals on.

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Add lark.yml to a repo

On the Finish GitHub setup page, click Add lark.yml for a repo. GitHub opens with the workflow file prefilled — review and commit it in your browser. Each repo also needs an ANTHROPIC_API_KEY secret under Settings → Secrets and variables → Actions. Lark uses your key, so token spend goes to your Anthropic account. You can add the secret before or after committing the workflow file; the action skips with a friendly comment until the secret is set. Repos show as Connected automatically after the first pull request triggers the workflow.

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Investigate issues

On any connected repository, a user with write access (owner, member, or collaborator) can comment:
Lark reads the issue title, body, labels, and comment thread, runs an investigation, and posts the report back as a GitHub comment. While the investigation runs, Lark adds a lark:investigating label; when it finishes, that label is replaced with lark:investigated or lark:investigation-failed.
/investigate works on issues only, not pull requests. Comments from first-time or untrusted contributors are ignored.
If /investigate is posted again while an investigation is already running for that issue, Lark skips the duplicate.

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Propose tests on pull requests

When .github/workflows/lark.yml is present, Lark runs on pull requests that are opened or reopened. It analyzes the diff and can propose new end-to-end tests for the changes. Pull requests from forks are skipped — forked workflows cannot mint OIDC tokens with Lark’s trusted audience.

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Reconfiguring or disconnecting

Click Configure on the GitHub card to review connected repos or open Manage repos to add lark.yml to more repositories. Click Disconnect to remove the Lark GitHub App installation from your account. Lark stops responding to /investigate and test proposals stop running; existing GitHub comments and workflow files in your repos are left untouched.