langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
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- Issues
- default_retry_on inverts requests error handling: 4xx are retried, connection errors and timeouts are not
- `Checkpoint.v` docstring states the format version is `1`; all checkpoints are written with `v=4`
- SqliteStore ignores per-operation TTL refresh choices in batched reads and default overrides
- SqliteStore ignores the documented `fields` index configuration
- test: add cache callable-identity regression matrix
- SqliteStore: nested-object equality filters raise `ValueError: Unsupported operator: <key>` because every dict filter value is treated as an operator map (InMemoryStore deep-matches them)
- Add tests-only regression matrix for cache callable-identity collisions
- SDK shared stream underfetches for explicit empty namespace filters
- SqliteStore operator-form filters with list/dict values (BLOB binding)
- InMemorySaver read misses create ghost thread entries and grow storage
- Docs
- Python not yet supported