langchain-ai/langgraph

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Build resilient agents.

Stars: 42k
Forks: 7.1k
Open beginner issues: 57
Indexed issues: 552
Avg merge: 19h 37m
Merged PRs (30d): 34

Dominant language: Python
License: MIT
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

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548 open issues indexed

Invitation: review AgentGavel LangGraph adapter for governance benchmark provenance Open

external

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/langgraph#8992 · Opened Sep 18, 2026
Feature: portable long-term memory across deployments — export/import verified memory bundles Open

external

Difficulty 5/5 Over a week Newbie friendliness 35/100

langchain-ai/langgraph#8979 · 2 comments · Opened Sep 18, 2026
SqliteStore semantic search truncates pages before item deduplication Open

external

Difficulty 3/5 1-2 days Newbie friendliness 38/100

langchain-ai/langgraph#8977 · 3 comments · Opened Sep 18, 2026
Explicit empty interrupt lists cannot disable compile-time interrupts Open

bug external

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

langchain-ai/langgraph#8969 · 2 comments · Opened Sep 18, 2026
Pregel.clear_cache([]) clears all node caches instead of being a no-op Open

bug external

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

langchain-ai/langgraph#8960 · 5 comments · Opened Sep 18, 2026
Docs: no guidance for OpenAI-compatible gateways (aimlapi.com) with create_react_agent Open

bug external

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/langgraph#8957 · 1 comment · Opened Sep 17, 2026
langgraph-api:3.14 image contains vulnerable benchmark-only npm dependencies Open

bug external

Difficulty 4/5 3-5 days Newbie friendliness 52/100

langchain-ai/langgraph#8955 · 1 comment · Opened Sep 17, 2026
Vulnerable Go dependencies in langchain/langgraph-api:3.14 core-api-grpc Open

bug external

Difficulty 4/5 3-5 days Newbie friendliness 45/100

langchain-ai/langgraph#8954 · 1 comment · Opened Sep 17, 2026
MCP tools/list: annotations hardcoded identically for every tool, and incorrect for read-only/destructive tools Open

external

Difficulty 4/5 3-5 days Newbie friendliness 52/100

langchain-ai/langgraph#8952 · 1 comment · Opened Sep 17, 2026
add_node: node protocols make the `state` parameter name load-bearing for type checkers Open

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Difficulty 2/5 1-3 hours Newbie friendliness 84/100

langchain-ai/langgraph#8950 · 1 comment · Opened Sep 17, 2026
建议：支持Build resilient agents.，适配无人零售/IoT场景 Open

external

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/langgraph#8947 · Opened Sep 17, 2026
SqliteSaver.put raises TypeError on checkpoints whose metadata carries the legacy `writes` key (fixed for Postgres in #6236) Open

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Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/langgraph#8942 · 4 comments · Opened Sep 16, 2026
config typing warning recommends 'RunnableConfig | None', but that exact annotation triggers the warning (under PEP 563) and silently disables config injection Open

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Difficulty 3/5 1-2 days Newbie friendliness 76/100

langchain-ai/langgraph#8941 · 2 comments · Opened Sep 16, 2026
BaseCheckpointSaver silently replaces an explicitly supplied falsey serializer Open

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Difficulty 2/5 1-3 hours Newbie friendliness 75/100

langchain-ai/langgraph#8940 · 2 comments · Opened Sep 16, 2026
BaseCache silently replaces an explicitly supplied falsey serializer Open

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Difficulty 2/5 1-3 hours Newbie friendliness 76/100

langchain-ai/langgraph#8939 · 1 comment · Opened Sep 16, 2026
EncryptedSerializer silently accepts unauthenticated plaintext rows, voiding its at-rest integrity guarantee Open

external

Difficulty 4/5 3-5 days Newbie friendliness 55/100

langchain-ai/langgraph#8938 · 5 comments · Opened Sep 15, 2026
create_react_agent ignores an explicit empty llm_input_messages from pre_model_hook Open

external

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

langchain-ai/langgraph#8925 · 3 comments · Opened Sep 15, 2026
ToolNode rejects a valid list[Command] return when the terminating ToolMessage is a dict message or in a list-form Command.update Open

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Difficulty 3/5 1-2 days Newbie friendliness 84/100

langchain-ai/langgraph#8924 · 3 comments · Opened Sep 15, 2026
AsyncBatchedBaseStore's public put()/aput() drop the supports_ttl guard, so a ttl is silently discarded instead of rejected Open

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Difficulty 3/5 1-2 days Newbie friendliness 38/100

langchain-ai/langgraph#8921 · 6 comments · 1 reaction · Opened Sep 14, 2026
Docs example passes `max_concurrency` inside `configurable`, where it is silently ignored Open

bug external

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

langchain-ai/langgraph#8920 · 4 comments · Opened Sep 14, 2026
checkpoint-conformance suite has no operator-form filter coverage, letting backend divergences through Open

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Difficulty 4/5 3-5 days Newbie friendliness 58/100

langchain-ai/langgraph#8919 · 1 comment · Opened Sep 14, 2026
建议：支持Build resilient agents.，适配无人零售/IoT场景 Open

external

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/langgraph#8915 · Opened Sep 14, 2026
Internal frames leak into user tracebacks: traceback filtering is a no-op since the #5252 module renames Open

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Difficulty 3/5 1-2 days Newbie friendliness 45/100

langchain-ai/langgraph#8911 · 3 comments · Opened Sep 13, 2026
Bug: default_retry_on retries non-retryable requests 4xx responses (Response.__bool__ truthiness) Open

external

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

langchain-ai/langgraph#8907 · 1 comment · Opened Sep 13, 2026
ShallowPostgresSaver and AsyncShallowPostgresSaver do not implement delete_thread Open

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Difficulty 4/5 3-5 days Newbie friendliness 48/100

langchain-ai/langgraph#8906 · 2 comments · Opened Sep 13, 2026
SqliteStore ignores `TTLConfig.omit_expired`: expired-but-unswept rows are still returned by `get`, `search` and `list_namespaces` Open

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Difficulty 3/5 1-2 days Newbie friendliness 38/100

langchain-ai/langgraph#8902 · 2 comments · Opened Sep 12, 2026
sdk-py: SyncStreamController._reconnect_shared_stream is defined twice — the locking added by #7829 never took effect Open

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Difficulty 3/5 1-2 days Newbie friendliness 58/100

langchain-ai/langgraph#8896 · 2 comments · Opened Sep 11, 2026
SABLE: verified external agent execution in ~10 minutes (reusable GitHub Actions path) Open

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Difficulty 3/5 1-2 days Newbie friendliness 68/100

langchain-ai/langgraph#8893 · 1 comment · Opened Sep 11, 2026
When a hired agent doesn’t deliver — has that happened to you? Open

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Difficulty 5/5 Over a week Newbie friendliness 10/100

langchain-ai/langgraph#8890 · 2 comments · Opened Sep 11, 2026
建议：支持Build resilient agents.，适配无人零售/IoT场景 Open

external

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/langgraph#8889 · Opened Sep 11, 2026
Missing test coverage for `before` and `limit` params in InMemorySaver.list() Open

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Difficulty 2/5 1-3 hours Newbie friendliness 88/100

langchain-ai/langgraph#8887 · 3 comments · Opened Sep 10, 2026
RemoteGraph invoke/ainvoke return message lists as raw dicts instead of BaseMessage instances Open

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Difficulty 3/5 1-2 days Newbie friendliness 25/100

langchain-ai/langgraph#8885 · 3 comments · Opened Sep 10, 2026
Refactor: replace implicit identity check with explicit `exiting` parameter in `PregelLoop._put_checkpoint` Open

bug external

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

langchain-ai/langgraph#8880 · 2 comments · Opened Sep 9, 2026
InMemoryStore semantic-search pagination ignores offset for unindexed items Open

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Difficulty 2/5 1-3 hours Newbie friendliness 78/100

langchain-ai/langgraph#8871 · 1 comment · Opened Sep 9, 2026
RemoteGraph get_state_history(limit=0) requests 10 states Open

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Difficulty 2/5 1-3 hours Newbie friendliness 88/100

langchain-ai/langgraph#8870 · 1 comment · Opened Sep 9, 2026
建议：支持Build resilient agents.，适配无人零售/IoT场景 Open

external

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/langgraph#8866 · Opened Sep 9, 2026
test: test_error_handler_resumes_after_crash_multiple_nodes fails only in the full suite (order-dependent) Open

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Difficulty 4/5 3-5 days Newbie friendliness 48/100

langchain-ai/langgraph#8861 · 4 comments · Opened Sep 8, 2026
perf(pregel): on_done rescans the accumulated `done` set on every task completion (O(tasks^2)) Open

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Difficulty 3/5 1-2 days Newbie friendliness 72/100

langchain-ai/langgraph#8859 · 3 comments · Opened Sep 8, 2026
perf(pregel): put_writes rescans every channel per task for UntrackedValue (O(tasks x channels)) Open

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Difficulty 2/5 1-3 hours Newbie friendliness 82/100

langchain-ai/langgraph#8857 · 3 comments · Opened Sep 8, 2026
perf(pregel): `_scratchpad` rescans `pending_writes` once per task (O(tasks x writes) per superstep) Open

external

Difficulty 3/5 1-2 days Newbie friendliness 76/100

langchain-ai/langgraph#8855 · 4 comments · Opened Sep 8, 2026
RedisCache.clear([()]) deletes every cache namespace instead of only the empty namespace Open

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Difficulty 4/5 3-5 days Newbie friendliness 52/100

langchain-ai/langgraph#8852 · 3 comments · Opened Sep 8, 2026
RedisCache key encoding collides when namespace or cache key contains ':' Open

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Difficulty 4/5 3-5 days Newbie friendliness 55/100

langchain-ai/langgraph#8851 · 2 comments · Opened Sep 8, 2026
Root Makefile aggregate targets can report success after a child command fails Open

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Difficulty 2/5 1-3 hours Newbie friendliness 85/100

langchain-ai/langgraph#8850 · 4 comments · Opened Sep 8, 2026
Error handler nodes ignore node timeouts (timeout dropped in prepare_node_error_handler_task) Open

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Difficulty 2/5 1-3 hours Newbie friendliness 68/100

langchain-ai/langgraph#8842 · 2 comments · Opened Sep 8, 2026
default_retry_on retries requests.HTTPError 4xx responses instead of only 5xx Open

bug external

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

langchain-ai/langgraph#8840 · 3 comments · Opened Sep 8, 2026
Consumed resume values are re-delivered to later interrupts: invoke(None) auto-answers a pending interrupt with a stale payload Open

external

Difficulty 4/5 3-5 days Newbie friendliness 52/100

langchain-ai/langgraph#8837 · 2 comments · Opened Sep 7, 2026
Command(resume={...}) with 32-hex keys that match no pending interrupt id is silently ignored Open

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Difficulty 3/5 1-2 days Newbie friendliness 68/100

langchain-ai/langgraph#8836 · 3 comments · Opened Sep 7, 2026
InMemoryStore hands out live references, so mutating a value silently rewrites stored memory (and diverges from SqliteStore/PostgresStore) Open

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Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/langgraph#8835 · 2 comments · Opened Sep 7, 2026
Resume after a conditional-router exception skips routing and returns normally Open

external

Difficulty 4/5 3-5 days Newbie friendliness 52/100

langchain-ai/langgraph#8834 · 4 comments · Opened Sep 6, 2026
SQLite mixed-batch retries retain stale special-channel writes Open

external

Difficulty 3/5 1-2 days Newbie friendliness 78/100

langchain-ai/langgraph#8833 · 2 comments · Opened Sep 6, 2026

langchain-ai/langgraph

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