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Pull requests: langchain-ai/langchain

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Pull requests list

feat(core): introduce ToolSchema as root schema cache; replace TypedDict conversion with TypeAdapter core `langchain-core` package issues & PRs feature For PRs that implement a new feature; NOT A FEATURE REQUEST internal size: L 500-999 LOC
#37103 opened Apr 30, 2026 by Sydney Runkle (sydney-runkle) Collaborator Loading…
1
perf(core): eliminate redundant schema computation in tool infrastructure core `langchain-core` package issues & PRs internal performance size: L 500-999 LOC
#37101 opened Apr 30, 2026 by Sydney Runkle (sydney-runkle) Collaborator Loading…
1
feat(anthropic): add AnthropicToolIdSanitizationMiddleware anthropic `langchain-anthropic` package issues & PRs feature For PRs that implement a new feature; NOT A FEATURE REQUEST integration PR made that is related to a provider partner package integration internal size: XL 1000+ LOC
#37096 opened Apr 30, 2026 by Mason Daugherty (mdrxy) Member Loading…
feat(langchain): add respond decision to HITL middleware feature For PRs that implement a new feature; NOT A FEATURE REQUEST internal langchain `langchain` package issues & PRs size: S 50-199 LOC
#37095 opened Apr 30, 2026 by Sydney Runkle (sydney-runkle) Collaborator Loading…
1
fix(fireworks): translate canonical multimodal content blocks for chat completions fireworks `langchain-fireworks` package issues & PRs fix For PRs that implement a fix integration PR made that is related to a provider partner package integration internal size: S 50-199 LOC
#37090 opened Apr 29, 2026 by murugand23 Loading…
2 of 3 tasks
chore(core): update delta content blocks anthropic `langchain-anthropic` package issues & PRs core `langchain-core` package issues & PRs dependencies Pull requests that update a dependency file (e.g. `pyproject.toml` or `uv.lock`) infra PRs made that include chores, devops, repo meta changes integration PR made that is related to a provider partner package integration internal openai `langchain-openai` package issues & PRs size: L 500-999 LOC standard-tests Related to the package `standard-tests`
#37069 opened Apr 29, 2026 by Christian Bromann (christian-bromann) Member Loading…
1
fix(core): support interleaved content blocks in stream_v2 bridge core `langchain-core` package issues & PRs fix For PRs that implement a fix internal size: M 200-499 LOC standard-tests Related to the package `standard-tests`
#37025 opened Apr 27, 2026 by Christian Bromann (christian-bromann) Member Loading…
1
feat(mistralai): surface citation metadata from chat responses external feature For PRs that implement a new feature; NOT A FEATURE REQUEST integration PR made that is related to a provider partner package integration mistralai `langchain-mistralai` package issues & PRs new-contributor size: S 50-199 LOC
#37008 opened Apr 25, 2026 by JulienRabault Loading…
1
@ccurme
3
fix(core): strip null id/name from tool-call-chunk deltas in compat bridge core `langchain-core` package issues & PRs fix For PRs that implement a fix internal size: M 200-499 LOC
#36962 opened Apr 23, 2026 by Christian Bromann (christian-bromann) Member Loading…
1
fix(core): use parsed mime_type for base64 file blocks in openai translator core `langchain-core` package issues & PRs external fix For PRs that implement a fix new-contributor size: S 50-199 LOC
#36940 opened Apr 22, 2026 by Anmol Jaiswal (anmolg1997) Loading…
1
4
perf(core): defer tracer imports in runnables/base.py to call time core `langchain-core` package issues & PRs dependencies Pull requests that update a dependency file (e.g. `pyproject.toml` or `uv.lock`) internal langchain `langchain` package issues & PRs performance size: M 200-499 LOC
#36920 opened Apr 21, 2026 by Sydney Runkle (sydney-runkle) Collaborator Loading…
1 task
1
feat(langchain): MiddlewareTransformer for agent streams feature For PRs that implement a new feature; NOT A FEATURE REQUEST internal langchain `langchain` package issues & PRs size: M 200-499 LOC
#36898 opened Apr 20, 2026 by Nick Hollon (nick-hollon-lc) Contributor Loading…
6
feat(langchain): AgentStreamer for create_agent graphs anthropic `langchain-anthropic` package issues & PRs core `langchain-core` package issues & PRs dependencies Pull requests that update a dependency file (e.g. `pyproject.toml` or `uv.lock`) feature For PRs that implement a new feature; NOT A FEATURE REQUEST integration PR made that is related to a provider partner package integration internal langchain `langchain` package issues & PRs openai `langchain-openai` package issues & PRs size: M 200-499 LOC standard-tests Related to the package `standard-tests`
#36897 opened Apr 20, 2026 by Nick Hollon (nick-hollon-lc) Contributor Loading…
2
feat(langchain): add RejectSystemMessagesMiddleware guardrail feature For PRs that implement a new feature; NOT A FEATURE REQUEST internal langchain `langchain` package issues & PRs size: M 200-499 LOC
#36825 opened Apr 16, 2026 by open-swe Bot • Draft
1 task
2
docs: security add threat models for langchain-core and langchain_v1 documentation Improvements or additions to documentation internal size: L 500-999 LOC
#36642 opened Apr 9, 2026 by John Kennedy (jkennedyvz) Contributor Loading…
2 of 3 tasks
4
fix(langchain): prefer metadata ls_provider in SummarizationMiddleware token check external fix For PRs that implement a fix langchain `langchain` package issues & PRs size: S 50-199 LOC trusted-contributor >= 5 merged PRs in the `langchain-ai/langchain` repo
#36604 opened Apr 8, 2026 by Michael Chin (michaelnchin) Contributor Loading…
1
@ccurme
5
fix(langchain): normalise provider-specific content blocks in ModelFallbackMiddleware external fix For PRs that implement a fix langchain `langchain` package issues & PRs new-contributor size: M 200-499 LOC
#36601 opened Apr 7, 2026 by VishwasPatel (Vishwaspatel2401) Loading…
1
fix(openrouter): support default_headers for custom HTTP header injection external fix For PRs that implement a fix integration PR made that is related to a provider partner package integration openrouter `langchain-openrouter` package issues & PRs size: S 50-199 LOC
#36582 opened Apr 7, 2026 by Hamza Kyamanywa (untilhamza) Contributor Loading…
1
2
chore: Bump mypy version to 1.20 in core, langchain_v1, text-splitters and standard-tests core `langchain-core` package issues & PRs dependencies Pull requests that update a dependency file (e.g. `pyproject.toml` or `uv.lock`) external infra PRs made that include chores, devops, repo meta changes langchain `langchain` package issues & PRs size: XS < 50 LOC standard-tests Related to the package `standard-tests` text-splitters Related to the package `text-splitters` trusted-contributor >= 5 merged PRs in the `langchain-ai/langchain` repo
#36470 opened Apr 2, 2026 by Christophe Bornet (cbornet) Collaborator Loading…
10
fix(openrouter): merge fragmented reasoning_details in streaming external fix For PRs that implement a fix integration PR made that is related to a provider partner package integration new-contributor openrouter `langchain-openrouter` package issues & PRs size: M 200-499 LOC
#36401 opened Mar 31, 2026 by Xi Zhang (X-iZhang) Loading…
7 tasks done
1
@mdrxy
8
fix(openai): add support for logprobs when using the response api external fix For PRs that implement a fix integration PR made that is related to a provider partner package integration new-contributor openai `langchain-openai` package issues & PRs size: S 50-199 LOC
#36371 opened Mar 30, 2026 by HOZHENWAI Loading…
1
@ccurme
3
fix(langchain): avoid shared process-group kill in shell middleware external fix For PRs that implement a fix langchain `langchain` package issues & PRs size: S 50-199 LOC
#36359 opened Mar 29, 2026 by Yashodip More (yashodipmore) Contributor Loading…
1
3
docs(security): add initial threat model for langchain monorepo documentation Improvements or additions to documentation internal size: M 200-499 LOC
#36317 opened Mar 27, 2026 by John Kennedy (jkennedyvz) Contributor • Draft
2
feat(minimax): add langchain-minimax partner package bypass-issue-check dependencies Pull requests that update a dependency file (e.g. `pyproject.toml` or `uv.lock`) external feature For PRs that implement a new feature; NOT A FEATURE REQUEST github_actions Pull requests that update GitHub Actions code integration PR made that is related to a provider partner package integration new-contributor size: XL 1000+ LOC
#36292 opened Mar 27, 2026 by Octopus (octo-patch) Loading…
2 of 3 tasks
1
@mdrxy
1
fix(openai): handle unrecognized server tool names in _consolidate_calls external fix For PRs that implement a fix integration PR made that is related to a provider partner package integration new-contributor openai `langchain-openai` package issues & PRs size: S 50-199 LOC
#36187 opened Mar 24, 2026 by Yifei Leng (Senna1960321) Loading…
1
1
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