langchain-ai/deepagents

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The batteries-included agent harness.

Stars: 29.6k
Forks: 4.1k
Open beginner issues: 0
Indexed issues: 153
Avg merge: 22h 17m
Merged PRs (30d): 485

Dominant language: Python
License: MIT
Last GitHub push: Sep 19, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
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153 open issues indexed

quickjs: JS `task()` subagent dispatch runs without the parent run's callbacks Open

integration:quickjs org:external priority:backlog topic:subagents topic:tracing type:bug

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

langchain-ai/deepagents#6401 · 1 comment · Opened Sep 18, 2026
Extract persistent goals and acceptance-criteria generation from dcode into the SDK Open

org:internal priority:backlog topic:backends topic:memory topic:middleware topic:models topic:prompts

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

langchain-ai/deepagents#6399 · Opened Sep 18, 2026
Extract Auto mode approval middleware for use outside dcode Open

org:internal priority:backlog topic:backends topic:filesystem topic:middleware topic:models topic:sandboxes topic:subagents

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

langchain-ai/deepagents#6398 · 2 reactions · Opened Sep 18, 2026
CodeInterpreterMiddleware.__del__ blocks forever at interpreter shutdown, process never exits Open

integration:quickjs org:external priority:backlog topic:middleware type:bug

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

langchain-ai/deepagents#6397 · 1 comment · Opened Sep 18, 2026
Dependency minimums raising is failing Open

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

langchain-ai/deepagents#6385 · 2 comments · Opened Sep 18, 2026
[dcode] MCP login cannot resolve plugin-provided servers Open

org:external package:dcode priority:backlog topic:mcp type:bug

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

langchain-ai/deepagents#6374 · 2 comments · Opened Sep 17, 2026
fix(code): own sandbox lifetime from the client in non-interactive runs Open

org:external package:dcode package:deepagents priority:backlog topic:sandboxes type:bug

Difficulty 4/5 3-5 days Newbie friendliness 68/100

langchain-ai/deepagents#6369 · Opened Sep 17, 2026
# Sandbox bake sends both snapshot_name and snapshot_id on the bake-builder create, and the API rejects it with 422 "snapshot_id and snapshot are mutually exclusive" Open

org:external package:deepagents priority:backlog topic:sandboxes type:bug

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

langchain-ai/deepagents#6361 · 1 comment · Opened Sep 17, 2026
Track `ChatAnthropicVertex` prompt-caching parity and provider consolidation Open

org:internal priority:high topic:middleware topic:models topic:prompts

langchain-ai/deepagents#6341 · 1 assignee · Opened Sep 16, 2026
deterministic skill loading Open

org:internal priority:backlog topic:skills type:feature

Difficulty 4/5 3-5 days Newbie friendliness 38/100

langchain-ai/deepagents#6338 · 2 comments · Opened Sep 16, 2026
acp: a tool call with empty arguments is never surfaced to the client — both its start and its result are silently dropped Open

org:external package:acp priority:backlog type:bug

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

langchain-ai/deepagents#6333 · 2 comments · Opened Sep 16, 2026
optimize binary reads by deferring file reads to object storage Open

org:internal package:deepagents priority:backlog topic:multimodal

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

langchain-ai/deepagents#6330 · Opened Sep 16, 2026
Virtual path resolution errors escape the filesystem tool boundary without user-visible feedback Open

org:external package:deepagents priority:backlog topic:filesystem type:bug

Difficulty 3/5 1-2 days Newbie friendliness 74/100

langchain-ai/deepagents#6329 · 3 comments · Opened Sep 16, 2026
optimize deepagents trajectory based on codex trajectory Open

org:internal package:evals priority:medium type:spike

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

langchain-ai/deepagents#6328 · 1 comment · Opened Sep 16, 2026
StateBackend invalid-tool errors advertise the hidden execute tool, prompting unsupported tool calls Open

org:external package:deepagents priority:medium topic:filesystem type:bug

langchain-ai/deepagents#6327 · 1 comment · 1 assignee · Opened Sep 16, 2026
langchain-quickjs: the eval tool description does not state that only one eval may be in flight Open

integration:quickjs org:external priority:medium topic:code-interpreter type:bug

Difficulty 1/5 Under an hour Newbie friendliness 85/100

langchain-ai/deepagents#6311 · 4 comments · Opened Sep 15, 2026
edit_file: parallel calls on the same file last-write-win with no error Open

org:external package:deepagents priority:high topic:filesystem type:bug

langchain-ai/deepagents#6297 · 2 comments · 1 assignee · Opened Sep 14, 2026
Thread reprinted from scratch sending a prompt after a rejection without message or an interruption Open

org:external package:dcode priority:backlog type:bug

Difficulty 3/5 1-2 days Newbie friendliness 70/100

langchain-ai/deepagents#6287 · 1 comment · Opened Sep 13, 2026
TaskToolSchema ignores unknown keys, so task dispatches a subagent without the model's instructions Open

org:external package:deepagents priority:backlog type:bug

langchain-ai/deepagents#6286 · 1 comment · 1 assignee · Opened Sep 13, 2026
harness matrix evals Open

org:internal package:evals priority:medium type:chore

langchain-ai/deepagents#6266 · 1 comment · 1 assignee · Opened Sep 11, 2026
subagent controls Open

org:internal priority:backlog topic:middleware topic:performance topic:subagents type:feature

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

langchain-ai/deepagents#6265 · 1 comment · Opened Sep 11, 2026
all in on code mode? Open

integration:quickjs org:internal package:deepagents priority:medium type:chore

Difficulty 5/5 Over a week Newbie friendliness 30/100

langchain-ai/deepagents#6263 · 2 comments · Opened Sep 11, 2026
supervisor over a2a spike Open

org:internal package:deepagents priority:medium topic:subagents type:spike

Difficulty 5/5 Over a week Newbie friendliness 30/100

langchain-ai/deepagents#6262 · 1 comment · Opened Sep 11, 2026
model routing spike Open

org:internal priority:high topic:middleware topic:performance type:spike

langchain-ai/deepagents#6261 · 1 comment · 1 assignee · Opened Sep 11, 2026
browser harness spike Open

org:internal priority:medium type:spike

langchain-ai/deepagents#6260 · 1 assignee · Opened Sep 11, 2026
Propagate LangSmith trace context into sandbox execution Open

integration:langsmith org:internal priority:backlog topic:sandboxes topic:tracing type:bug

langchain-ai/deepagents#6244 · 1 comment · 1 assignee · Opened Sep 10, 2026
`cancel_async_task` records `cancelled` for a run that had already finished, and `list_async_tasks` then never re-fetches it Open

org:external package:deepagents priority:backlog topic:async-subagents topic:subagents type:bug

langchain-ai/deepagents#6234 · 2 comments · 2 assignees · Opened Sep 10, 2026
Installing dcode breaks `uv tool list` with the persistent lock directory Open

org:external package:dcode priority:backlog type:bug

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

langchain-ai/deepagents#6233 · 1 comment · Opened Sep 10, 2026
`agent.get_system_prompt`: `system_prompt.md` is read with the locale encoding, so dcode cannot start on CJK Windows Open

org:external package:dcode priority:backlog type:bug

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

langchain-ai/deepagents#6229 · 1 comment · Opened Sep 10, 2026
feat(code): add a hard `--max-cost` spend cap that halts the agent Open

org:external package:dcode priority:backlog type:feature

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

langchain-ai/deepagents#6209 · Opened Sep 9, 2026
read_file on a .zip wedges OpenAI threads: the non-PDF provider exemption skips scrubbing for every binary MIME type Open

org:internal package:deepagents priority:high topic:filesystem topic:multimodal type:bug

langchain-ai/deepagents#6150 · 5 comments · 2 assignees · Opened Sep 8, 2026
task returns an empty ToolMessage when a CompiledSubAgent uses RemoteGraph Open

org:external package:deepagents priority:medium topic:subagents type:bug

langchain-ai/deepagents#6126 · 3 comments · 1 assignee · Opened Sep 6, 2026
MemoryMiddleware keeps stale memory on checkpointed threads Open

org:external package:deepagents priority:backlog topic:memory type:feature

langchain-ai/deepagents#6122 · 3 comments · 1 assignee · Opened Sep 6, 2026
StoreBackend hangs on async stores — missing async methods for ls/glob/grep/download_files Open

org:external package:deepagents priority:backlog type:bug

langchain-ai/deepagents#6120 · 1 comment · 1 assignee · Opened Sep 6, 2026
fix(code): remove contradictory and invalid system-prompt instructions Open

org:external package:dcode priority:backlog topic:prompts type:bug

Difficulty 4/5 3-5 days Newbie friendliness 68/100

langchain-ai/deepagents#6071 · 2 comments · Opened Sep 4, 2026
Tracing client is process-global across workspaces sharing a server Open

org:internal package:dcode priority:backlog type:bug

langchain-ai/deepagents#6060 · 1 comment · 1 assignee · Opened Sep 3, 2026
`StateBackend` and `StoreBackend` report character counts instead of UTF-8 byte sizes Open

org:external package:deepagents priority:backlog type:bug

langchain-ai/deepagents#6042 · 9 comments · 1 assignee · Opened Sep 3, 2026
`create_sandbox()` does not clean up a newly created sandbox when setup fails Open

org:external package:dcode priority:backlog type:bug

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

langchain-ai/deepagents#6029 · 3 comments · Opened Sep 2, 2026
`CompositeBackend.grep`: a route-qualified `glob` filter returns no matches during root aggregation Open

org:external package:deepagents priority:backlog topic:filesystem triage:needs-investigation type:bug

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

langchain-ai/deepagents#6019 · 1 comment · Opened Sep 1, 2026
Agent can continue investigating after it has already stated a decision, producing long runs that end with no file edits Open

org:external package:dcode priority:backlog type:bug

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

langchain-ai/deepagents#6013 · 1 comment · Opened Sep 1, 2026
feat: Cross-user memory sharing with namespace-based ACL Open

org:external package:deepagents priority:backlog topic:memory type:feature

Difficulty 5/5 Over a week Newbie friendliness 38/100

langchain-ai/deepagents#6000 · 3 comments · Opened Aug 31, 2026
`execute` reports success when a pipeline masks a failing command Open

org:internal package:deepagents priority:backlog type:bug

langchain-ai/deepagents#5955 · 6 comments · 1 assignee · Opened Aug 28, 2026
Watch config files and live-reload mid-session Open

org:internal package:dcode priority:backlog type:feature

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

langchain-ai/deepagents#5949 · Opened Aug 28, 2026
ACP streaming path reports failed tool calls as "completed" to client Open

org:external package:acp priority:backlog type:bug

langchain-ai/deepagents#5938 · 4 comments · 1 assignee · Opened Aug 28, 2026
Add optional `limit` parameter to `ls` Open

org:external package:deepagents priority:backlog topic:filesystem type:feature

langchain-ai/deepagents#5894 · 4 comments · 1 assignee · Opened Aug 27, 2026
Add docs-aligned Claude 5 harness profiles Open

org:external package:deepagents priority:backlog topic:harness-profiles type:feature

langchain-ai/deepagents#5891 · 4 comments · 1 assignee · Opened Aug 27, 2026
Migrate dcode app-wide to the v3 streaming API Open

org:internal package:dcode priority:backlog type:chore

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

langchain-ai/deepagents#5876 · Opened Aug 27, 2026
`edit_file` rejects the exact text `read_file` just returned on CRLF files (State/Store) Open

org:external package:deepagents priority:backlog topic:filesystem type:bug

langchain-ai/deepagents#5840 · 2 comments · 1 assignee · Opened Aug 26, 2026
PatchToolCallsMiddleware misses orphaned Responses function_call content blocks Open

org:external package:deepagents priority:medium topic:models type:bug

langchain-ai/deepagents#5781 · 2 comments · 1 assignee · Opened Aug 24, 2026
Publish context usage and session cost over ACP Open

org:internal package:acp package:dcode priority:backlog type:feature

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

langchain-ai/deepagents#5766 · 1 comment · Opened Aug 24, 2026

langchain-ai/deepagents

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