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[Adapter] LangChain export/runner #2
Description
Activity
- added a commit that references this issue
on Mar 25, 2026 Apologies for the long silence — PR #16 by @AJAmit17 implements LangChain export + runner with multi-provider support. I've left a detailed review there asking for a rebase against current main (the PR predates several command refactors, the rebrand to
@open-gitagent/gapman, and the newkiro/gitclawadapters). Once that lands I'll close this issue.PR #81 addresses this issue with a clean rebase of the original #16. It is currently in review. A quick status note:
- The adapter (
src/adapters/langchain.ts) and runner (src/runners/langchain.ts) are both present - Provider detection covers OpenAI (gpt-, o1/o2/o3/o4-) and Anthropic (claude-*)
- Unit tests are included (
langchain.test.ts) - Documentation is in
docs/adapters/langchain.md
Two blocking issues flagged in the PR review: (1) the venv bootstrap on first run gives no user-visible progress, and (2) unsupported models hard-error with no fallback. Once those are addressed the PR should be mergeable.
Tracking here — will close this issue when #81 merges.
- The adapter (
PR #81 (feat/langchain-rebased by @AJAmit17) directly addresses this issue and is currently open for review. The implementation covers export to standalone LangChain Python scripts with multi-provider support (OpenAI + Anthropic), tool integration, sub-agent delegation, and memory handling.
A few items from the PR review that need resolution before close:
- The export.ts caller has no try/catch around the langchain case — unhandled exceptions will crash the CLI on unsupported models
- The detectProvider export widens the public API surface for an internal function
- Naming convention: exportToLangChain vs the established exportTo*String pattern
Once those are addressed in PR #81, this issue can be closed. Assigning @shreyas-lyzr to track the PR to merge.
Summary
Add a LangChain adapter to gitagent, enabling export and run support for the LangChain framework.
Details
LangChain is one of the most widely adopted LLM frameworks. A gitagent adapter would allow users to:
Acceptance Criteria
gitagent export --format langchaingenerates valid LangChain Python codegitagent run ./agent --adapter langchainexecutes the agentexamples/Resources
src/adapters/for reference