langchain-ai/langchain - CodSpeed

langchain

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Performance History

Latest Results

fix(core): keep extra message fields through dumpd/load

hunter/core-serialize-message-extras

15 hours ago

refactor(core): build refusal blocks without `cast`

hntrl/langchain/model-refusal

15 hours ago

test(langchain): set model provider on refusal stream test message

hntrl/langchain/model-refusal

16 hours ago

test(langchain): skip the async missed-call review test below Python 3.11

byhow/langchain/hitl-review-unseen-calls

16 hours ago

fix(core,anthropic,openai,langchain): address refusal review findings

hntrl/langchain/model-refusal

16 hours ago

fix(langchain): review gated tool calls the batched review never saw In batched mode `HumanInTheLoopMiddleware` reviews the tool calls in the model's message in `after_model`. A gated call that reached the tool-call chain without being in that message, such as one another middleware makes from code it runs, ran without review. `wrap_tool_call` now asks about such a call as it starts, as a one-item `HITLRequest`, honoring `when`, and applies approve, edit, reject, or respond to that call. Calls from the model's message are not asked about again.

byhow/langchain/hitl-review-unseen-calls

16 hours ago

fix(langchain): call `ClientGroup` MCP tools through their own member client

hunter/mcp-route-only-tool-calls

18 hours ago

fix(core): load RemoveMessage serialized by LangChain.js (#41642) LangChain.js serializes `RemoveMessage` as `["langchain_core", "messages", "RemoveMessage"]`, but `_JS_SERIALIZABLE_MAPPING` has no entry for it. So Python fails to load JS graph checkpoints that contain one, for example from summarization or deepagentsjs tool-call patching. This adds the mapping. It also makes the class allowed under `allowed_objects="messages"`. ```mermaid flowchart LR JS["JS graph saves RemoveMessage<br/>id: langchain_core.messages.RemoveMessage"] --> CK[("Checkpoint")] CK --> PY["Python reader<br/>JsonPlusSerializer, core allowlist"] PY -->|today: id not in _JS_SERIALIZABLE_MAPPING| ERR["ValueError: whole value fails,<br/>/state and /history error"] PY -->|with this PR| OK["RemoveMessage(id=...)<br/>read succeeds"] ``` ## Release note Python can now load `RemoveMessage` objects serialized by LangChain.js. ## Verification - [x] New test loads a JS-serialized `RemoveMessage`; it fails without the mapping - [x] `make test` in `libs/core` passes; ruff check and format are clean 🤖 Generated with [Claude Code](https://claude.com/claude-code)

master

23 hours ago

Latest Branches

+1%

fix(core): keep extra message fields through dumpd/load#41648

15 hours ago

69a7d04

hunter/core-serialize-message-extras

+1%

feat(core): standardize model refusal content blocks#41582

15 hours ago

f658d4e

hntrl/langchain/model-refusal

0%

fix(langchain): review gated tool calls the batched review never saw#41647

16 hours ago

0ea3001

byhow/langchain/hitl-review-unseen-calls

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