release(deepagents): 0.5.6 (#3051)

> [!CAUTION]
> Merging this PR will automatically publish to **PyPI** and create a
**GitHub release**.

For the full release process, see
[`.github/RELEASING.md`](https://github.com/langchain-ai/deepagents/blob/main/.github/RELEASING.md).

---

_Everything below this line will be the GitHub release body._

---


##
[0.5.6](deepagents==0.5.5...deepagents==0.5.6)
(2026-05-01)

### Bug Fixes

* Add write preflight and native read to langsmith sandbox
([#2695](#2695))
([741221c](741221c))
* Propagate `CompiledSubAgent` name into `lc_agent_name` metadata
([#3045](#3045))
([f671e6b](f671e6b))

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_Everything above this line will be the GitHub release body._

---

> [!NOTE]
> A **New Contributors** section is appended to the GitHub release notes
automatically at publish time (see [Release
Pipeline](https://github.com/langchain-ai/deepagents/blob/main/.github/RELEASING.md#release-pipeline),
step 2).

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Mason Daugherty <mason@langchain.dev>
Co-authored-by: Mason Daugherty <github@mdrxy.com>

Author: github-actions[bot]

.release-please-manifest.json

@@ -1,6 +1,6 @@
 {
   "libs/cli": "0.0.47",
-  "libs/deepagents": "0.5.5",
+  "libs/deepagents": "0.5.6",
   "libs/acp": "0.0.6",
   "libs/code": "0.0.1",
   "libs/partners/daytona": "0.0.5",

examples/async-subagent-server/uv.lock

@@ -26,7 +26,7 @@ classifiers = [
 ]
 dependencies = [
     # Framework
-    "deepagents==0.5.5",
+    "deepagents==0.5.6",
     "langchain>=1.2.15,<2.0.0",
     "langgraph>=1.1.6,<2.0.0",
     "langgraph-checkpoint-sqlite>=3.0.0,<4.0.0",

examples/repl_swarm/uv.lock

@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.5.6](https://github.com/langchain-ai/deepagents/compare/deepagents==0.5.5...deepagents==0.5.6) (2026-05-01)
+
+### Bug Fixes
+
+* Add write preflight and native read to langsmith sandbox ([#2695](https://github.com/langchain-ai/deepagents/issues/2695)) ([741221c](https://github.com/langchain-ai/deepagents/commit/741221c9d8b65a535816e318ee24d3c19a4bde80))
+* Propagate `CompiledSubAgent` name into `lc_agent_name` metadata ([#3045](https://github.com/langchain-ai/deepagents/issues/3045)) ([f671e6b](https://github.com/langchain-ai/deepagents/commit/f671e6b18aa49700a535f7b48441662b67dafef9))
+
 ## [0.5.5](https://github.com/langchain-ai/deepagents/compare/deepagents==0.5.4...deepagents==0.5.5) (2026-04-30)
 
 ### Bug Fixes

examples/rlm_agent/uv.lock

@@ -1,3 +1,3 @@
 """Version information for `deepagents` (SDK)."""
 
-__version__ = "0.5.5"  # x-release-please-version
+__version__ = "0.5.6"  # x-release-please-version

libs/acp/uv.lock

@@ -1,6 +1,6 @@
 [project]
 name = "deepagents"
-version = "0.5.5"
+version = "0.5.6"
 
 description = "General purpose 'deep agent' with sub-agent spawning, todo list capabilities, and mock file system. Built on LangGraph."
 readme = "README.md"