Add LangSmith tracing plugin for Temporal workflows#1369
Draft
Add LangSmith tracing plugin for Temporal workflows#1369
Conversation
|
|
Implements a LangSmith contrib plugin that creates trace hierarchies for Temporal operations (workflows, activities, signals, queries, updates, child workflows, Nexus). Supports ambient @Traceable context propagation, replay-safe tracing, and an add_temporal_runs toggle for lightweight context-only mode. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
…late - Add ReplaySafeRunTree wrapper that handles replay skipping and sandbox safety (post/end/patch no-op during replay, sandbox_unrestricted in workflow context), inspired by OTel plugin's _ReplaySafeSpan pattern - Add config.maybe_run() to eliminate repeated config kwargs at every call site - Add _traced_call (client outbound) and _traced_outbound (workflow outbound) helpers to reduce interceptor methods to one-liners - Fold _extract_context into _workflow_maybe_run for workflow inbound - Remove _safe_post, _safe_patch helpers (internalized in wrapper) - Remove in_workflow parameter from _maybe_run (wrapper detects it) - Establish consistent wrapping invariant: all run references are ReplaySafeRunTree, unwrapping is unconditional ._run at RunTree constructor boundary - Parametrize redundant unit tests (client outbound, workflow inbound/outbound) and remove duplicate test - Remove _make_interceptor test helper, use LangSmithInterceptor directly - Collapse plugin constructor tests into one, add comprehensive plugin integration test, remove redundant sandbox tests Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Fix ruff I001 import sorting violations in _interceptor.py and test_integration.py. Extract _get_current_run_safe() helper for reading ambient LangSmith context with replay safety. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
xumaple
force-pushed
the
maplexu/langsmith-plugin
branch
from
b6a7751 to
80d981e
Compare
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
xumaple
force-pushed
the
maplexu/langsmith-plugin
branch
from
2803b95 to
768ac70
Compare
tconley1428
reviewed
Mar 17, 2026
| def __init__( | ||
| self, | ||
| *, | ||
| client: Any | None = None, |
tconley1428
reviewed
Mar 17, 2026
| *, | ||
| client: Any | None = None, | ||
| project_name: str | None = None, | ||
| add_temporal_runs: bool = True, |
Contributor
There was a problem hiding this comment.
I prefer default to false
tconley1428
reviewed
Mar 17, 2026
| return runner | ||
|
|
||
| super().__init__( | ||
| "LangSmithPlugin", |
Contributor
There was a problem hiding this comment.
We're adopting organization.PluginName
tconley1428
reviewed
Mar 17, 2026
| # Constants | ||
| # --------------------------------------------------------------------------- | ||
|
|
||
| HEADER_KEY = "_langsmith-context" |
Contributor
There was a problem hiding this comment.
Prefix with _temporal or something, check what others use
tconley1428
reviewed
Mar 17, 2026
|
|
||
| def _inject_context( | ||
| headers: Mapping[str, Payload], | ||
| run_tree: Any, |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
temporalio.contrib.langsmithplugin that creates LangSmith trace hierarchies for Temporal operations (workflows, activities, signals, queries, updates, child workflows, Nexus)@traceablecontext propagation through Temporal headers, replay-safe tracing, and anadd_temporal_runstoggle for lightweight context-only modeTest plan
uv run pytest tests/contrib/langsmith/ -v— 48/48 passuv run pyright temporalio/contrib/langsmith/— 0 errorsuv run ruff check temporalio/contrib/langsmith/ tests/contrib/langsmith/— all checks passed🤖 Generated with Claude Code