langchain/.github/PULL_REQUEST_TEMPLATE.md

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Thank you for contributing to LangChain! Follow these steps to mark your pull request as ready for review. If any of these steps are not completed, your PR will not be considered for review.

• PR title: Follows the format: {TYPE}({SCOPE}): {DESCRIPTION}

  • Examples:
    • feat(core): add multi-tenant support
    • fix(cli): resolve flag parsing error
    • docs(openai): update API usage examples
  • Allowed {TYPE} values:
    • feat, fix, docs, style, refactor, perf, test, build, ci, chore, revert, release
  • Allowed {SCOPE} values (optional):
    • core, cli, langchain, standard-tests, text-splitters, docs, anthropic, chroma, deepseek, exa, fireworks, groq, huggingface, mistralai, nomic, ollama, openai, perplexity, prompty, qdrant, xai, infra
  • Once you've written the title, please delete this checklist item; do not include it in the PR.

• PR message: Delete this entire checklist and replace with

  • Description: a description of the change. Include a closing keyword if applicable to a relevant issue.
  • Issue: the issue # it fixes, if applicable (e.g. Fixes #123)
  • Dependencies: any dependencies required for this change

• Lint and test: Run make format, make lint and make test from the root of the package(s) you've modified. We will not consider a PR unless these three are passing in CI. See contribution guidelines for more.

Additional guidelines:

• Most PRs should not touch more than one package.
• Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. Likewise, please do not update the uv.lock files unless you are adding a required dependency.
• Changes should be backwards compatible.
• Make sure optional dependencies are imported within a function.