render-lab-tasks-langsmith

Unreleased Python port: 12 registered tasks from render-lab/render-tasks. Python 3.12+, Render SDK 1.0.1. Requires core 0.1.1 or later.

From the repository root:

uv sync --all-packages --locked

Import render_lab_tasks_langsmith.tasks to register tasks. The package root is inert. Compose the exported app with Workflows.from_workflows; call tasks through ctx.run. Every operation also exports *_impl(ctx, input, *, deps=None) for injection. Client(http, env) accepts a caller-owned HTTPX client, and Deps(langsmith=client) injects it. Default dependencies open and close the HTTP client per invocation; credentials are read lazily at use. No HTTP retries or background vendor polling occur; retry.py owns the durable retry policies.

Task surface

Registered task Python export
langsmith.addFeedback add_feedback
langsmith.awaitReview await_review
langsmith.closeExperiment close_experiment
langsmith.createComparison create_comparison
langsmith.ensureDataset ensure_dataset
langsmith.ensureExperiment ensure_experiment
langsmith.gateExperiment gate_experiment
langsmith.getExperimentStats get_experiment_stats
langsmith.listExamples list_examples
langsmith.logExperimentRuns log_experiment_runs
langsmith.startReview start_review
langsmith.upsertExamples upsert_examples

Typed JSON inputs and results are in types.py. Task names and JSON field names match the pinned source; Python function names use snake_case.

Environment

Variable Requirement
LANGSMITH_API_KEY Required at first API call.
LANGSMITH_ENDPOINT Optional; https://api.smith.langchain.com by default.
LANGSMITH_WORKSPACE_ID Optional workspace ID; forwarded as x-tenant-id for all requests.

Behavior and limits

Uses direct HTTP, including the multipart example endpoint described by langsmith 0.8.1. Upsert lookup filters the requested stable IDs, avoiding the source first-page existence bug. list_examples defaults to a bounded 1000-row page and supplies nextOffset. LANGSMITH_WORKSPACE_ID applies to REST and SDK-replacement paths. These deliberate differences are recorded in ADR-0010. The source uses both SDK paths and /api/v1 REST paths; account routing and multipart support remain unverified. Review progress currently consumes one feedback response; vendor pagination and gate counts across different runs need live validation.

Verification

All registered tasks have hermetic contract fixtures executed independently against the pinned TS implementation. SDK-backed tasks also have explicit HTTP request fixtures. See tests/test_batch3_contracts.py and tests/test_batch3_edges.py. These are not live vendor results.

Vendor webhooks subpaths and other registration-free TS exports are outside this batch unless explicitly listed above. Full registered-task coverage does not imply all supporting exports are ported.

Pending scopes, test resources, replay, and hosted checks are in the live-testing backlog and verification tracker.

Webhook adapter

render_lab_tasks_langsmith.webhooks.langsmith_engine_adapter(on_event, ...) returns a registration-free adapter for render_lab_triggers. The callback receives the verified event and returns {"task": "namespace.task", "args": [event]} or None. The signing credential LANGSMITH_ENGINE_WEBHOOK_SECRET is read inside verification unless provided explicitly. Importing this module does not register tasks. Signature checks use the raw body; live delivery remains in the testing backlog.

Installation

pip install render-lab-tasks-langsmith==0.1.0

Project links

Data verified by PyPI on Sep 9, 2026
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Data verified by PyPI on Sep 9, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
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Requires

Python >=3.12

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