* feat: migrate LangSmith sandbox creation to snapshot API
Replaces the template-based sandbox flow (DEFAULT_SANDBOX_TEMPLATE_NAME /
DEFAULT_SANDBOX_TEMPLATE_IMAGE) with the new snapshot-based flow.
- New required env var DEFAULT_SANDBOX_SNAPSHOT_ID (UUID of a pre-built
LangSmith snapshot; build out-of-band via UI or SandboxClient.create_snapshot)
- Optional DEFAULT_SANDBOX_SNAPSHOT_FS_CAPACITY_BYTES overrides the root FS
size at boot (default 32 GiB)
- Startup-time validation via a FastAPI lifespan hook: the server refuses
to boot with a clear ValueError if SANDBOX_TYPE=langsmith and
DEFAULT_SANDBOX_SNAPSHOT_ID is unset, so failures surface in boot logs
rather than on the first thread
- Reconnect-to-existing-sandbox path unchanged
- Docs (INSTALLATION.md, CUSTOMIZATION.md) updated to describe the new
snapshot workflow
* fix: format create_sandbox_snapshot.py to pass ruff
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Co-authored-by: aran-yogesh <yogesh.mahendran@langchain.dev>
* fix: add retry with delay for sandbox proxy config to avoid 500 when proxy isn't ready
* fix: add retry with exponential backoff and connection error handling for proxy config
* fix: use GitHub App installation token for PR creation instead of user token
* fix: move installation token fetch after no-changes check to avoid unnecessary API call
* fix: add Exa web search tool
* chore: update uv.lock for exa-py dependency
* linting
* chore: remove web_search from system prompt
* chore: drop search_type and category params from web_search
The agent sees users formatted as @Name(USER_ID) in conversation context and
reproduces that pattern in replies, but Slack requires <@USER_ID> for real
mentions. This adds automatic conversion and updates prompt instructions.
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* Add GitHub PR review tools (list, get, create, update, dismiss, submit, list comments) and bind them to the agent
* format n lint
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Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
Co-authored-by: Aran Yogesh <yogesh.mahendran@langchain.dev>
Adds 6 new agent tools backed by Linear's GraphQL API, with a shared
_graphql_request helper to reduce boilerplate. Refactors existing
comment_on_linear_issue to use the same helper.
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* feat: extract repo parsing into shared util and add linear comment repo override
Moves the repo extraction regex logic (repo:, repo , GitHub URL) into
agent/utils/repo.py so it can be reused. Updates the Linear webhook
handler to check the comment body for a custom repo first, falling back
to the team/project mapping when none is specified.
* chore: document repo extraction util and default org configuration
* feat: add generic DEFAULT_REPO_OWNER/DEFAULT_REPO_NAME env vars replacing Slack-only defaults
* chore: remove deprecated SLACK_REPO_OWNER/NAME env vars from docs
---------
Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* feat: default org to langchain-ai when repo: is used without org prefix
* chore: use SLACK_REPO_OWNER for repo shorthand default org and document in CUSTOMIZATION.md
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Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
* feat: send LangSmith trace URL on run trigger from Slack and Linear
* fix: check LANGSMITH_PROJECT before LANGSMITH_PROJECT_PROD for project name lookup
* fix: pass LangSmith API key explicitly to Client and remove global variable
* Update agent/utils/langsmith.py
Co-authored-by: Brace Sproul <braceasproul@gmail.com>
* refactor: move trace notification helpers out of webapp and use env vars for LangSmith URL base
* docs: add LangSmith tenant and project ID env vars to installation guide
* fix: remove unused comment_on_linear_issue import from webapp
* nit: remove lru_cache, make get_langsmith_trace_url sync, and move langsmith import to top level
* Update INSTALLATION.md
Co-authored-by: Brace Sproul <braceasproul@gmail.com>
* Update INSTALLATION.md
Co-authored-by: Brace Sproul <braceasproul@gmail.com>
* Update INSTALLATION.md
Co-authored-by: Brace Sproul <braceasproul@gmail.com>
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Co-authored-by: Brace Sproul <braceasproul@gmail.com>
Reads LANGCHAIN_REVISION_ID env var (set by LSD from LANGSMITH_LANGGRAPH_GIT_REF_SHA)
and injects it as LANGSMITH_AGENT_VERSION metadata on every runs.create() call.
This enables the agent_deployments sync job to track which agent version produced each trace.
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
`get_slack_repo_config` previously only matched `repo:owner/name` (colon).
Messages using `repo owner/name` (space) or containing a GitHub URL like
`https://github.com/langchain-ai/langgraph-api` fell back to the default
repo. This extends the detection with both patterns — additive, no existing
behavior changed.
Co-authored-by: Forge Agent <forge-agent@anthropic.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
* fix: skip no_op injection when PR is committed and user is notified
- Root cause: ensure_no_empty_msg Branch 1 (empty AI message) lacked the
same completion checks as Branch 2 (text-only AI message), causing a
spurious no_op injection after commit_and_open_pr + user notification
- Change: add check_if_model_already_called_commit_and_open_pr AND
check_if_model_messaged_user guard to Branch 1 of ensure_no_empty_msg
- Verified: 7/100 production traces no longer get an extra LLM call
* updated
* pass tests
---------
Co-authored-by: Auto Fix Bot <auto-fix@langchain.ai>
Co-authored-by: Palash Shah <palash@langchain.dev>
Co-authored-by: Palash Shah <35114859+Palashio@users.noreply.github.com>
* feat: add GitHub PR comment trigger and reply support
* refactor: improve readability of GitHub integration
* linting
* fix: resolve github token from thread metadata and improve PR trigger flow
* fix: fall back to OAuth for GitHub webhook when no token in thread metadata
* give me commit message github integeration working without a breaking
* auth.py refactor
* fix: validate cached GitHub token before use to handle expiry
* liniting
* ci unitest formatting
* feat: post PR comments as GitHub App bot instead of user OAuth token
* resolved comments
* slack resolveed comments
* Refactor docstring and comments in get_slack_repo_config
Removed unnecessary comments and cleaned up docstring formatting.
* cr
* cr
* cr
* cr
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Co-authored-by: bracesproul <braceasproul@gmail.com>
