langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- chore(model-profiles): refresh model profile data
- core: Responses file-URL test overwrites its expected result without asserting it
- `ToolRetryMiddleware`: default settings retry non-idempotent tools on ambiguous transport errors, then ask the model to retry again
- chore(model-profiles): refresh model profile data
- Cache writes are counted twice for priority and flex
- anthropic: `FilesystemClaudeTextEditorMiddleware` reads and writes files with the locale encoding so non ascii content breaks on non utf8 systems
- pyproject.toml is read with the locale encoding in unit tests — full inventory (4 call sites, one missed by #40588, one latent)
- langchain-typesafe: ModelRouterMiddleware raises an opaque RuntimeError when state has no human message
- core: Message chunk addition drops 'name' and fallback 'id', breaking streaming multi-agent metadata and merge_message_runs
- PromptTemplate silently accepts empty f-string field `{}` then crashes with IndexError on format
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