release: 0.103.0 (#1565)

* feat(client): Add support for self-hosted sandboxes in CMA with sandbox helpers

* release: 0.103.0

---------

Co-authored-by: stainless-app[bot] <142633134+stainless-app[bot]@users.noreply.github.com>

Author: stainless-app[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "0.102.0"
+  ".": "0.103.0"
 }

.stats.yml

@@ -1,4 +1,4 @@
-configured_endpoints: 97
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic/anthropic-9bc52c052beb11ccfff68e9d96335774c8377f914bcf36278e5774c68aa84e69.yml
-openapi_spec_hash: 3a5f6e11b9fda1c165c6f9edbdee7d90
-config_hash: ed200254fa6776c7b124706c91c80475
+configured_endpoints: 106
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic/anthropic-56896df83861385b03a49bdf36623a811f5dedd599fdacf5680c73f9e73e1546.yml
+openapi_spec_hash: e1812c6c53a1029d12b5d83ca50f4b78
+config_hash: 45b88a8e434814b9e6f4258be5804047

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.103.0 (2026-05-19)
+
+Full Changelog: [v0.102.0...v0.103.0](https://github.com/anthropics/anthropic-sdk-python/compare/v0.102.0...v0.103.0)
+
+### Features
+
+* **client:** Add support for self-hosted sandboxes in CMA with sandbox helpers ([e5625b0](https://github.com/anthropics/anthropic-sdk-python/commit/e5625b0ae2a1e9d25847a53217c8fd70fa67c5ed))
+
 ## 0.102.0 (2026-05-13)
 
 Full Changelog: [v0.101.0...v0.102.0](https://github.com/anthropics/anthropic-sdk-python/compare/v0.101.0...v0.102.0)

api.md

@@ -558,7 +558,13 @@ from anthropic.types.beta import (
     BetaManagedAgentsAgentToolsetDefaultConfig,
     BetaManagedAgentsAgentToolsetDefaultConfigParams,
     BetaManagedAgentsAgentToolset20260401,
+    BetaManagedAgentsAgentToolset20260401BashInput,
+    BetaManagedAgentsAgentToolset20260401EditInput,
+    BetaManagedAgentsAgentToolset20260401GlobInput,
+    BetaManagedAgentsAgentToolset20260401GrepInput,
     BetaManagedAgentsAgentToolset20260401Params,
+    BetaManagedAgentsAgentToolset20260401ReadInput,
+    BetaManagedAgentsAgentToolset20260401WriteInput,
     BetaManagedAgentsAlwaysAllowPolicy,
     BetaManagedAgentsAlwaysAskPolicy,
     BetaManagedAgentsAnthropicSkill,
@@ -581,6 +587,7 @@ from anthropic.types.beta import (
     BetaManagedAgentsMultiagentCoordinator,
     BetaManagedAgentsMultiagentCoordinatorParams,
     BetaManagedAgentsMultiagentSelfParams,
+    BetaManagedAgentsSessionThreadAgent,
     BetaManagedAgentsSkillParams,
     BetaManagedAgentsURLMCPServerParams,
 )
@@ -614,18 +621,47 @@ from anthropic.types.beta import (
     BetaLimitedNetworkParams,
     BetaPackages,
     BetaPackagesParams,
+    BetaSelfHostedConfig,
+    BetaSelfHostedConfigParams,
     BetaUnrestrictedNetwork,
 )
 ```
 
 Methods:
 
-- <code title="post /v1/environments?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments.py">create</a>(\*\*<a href="src/anthropic/types/beta/environment_create_params.py">params</a>) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
-- <code title="get /v1/environments/{environment_id}?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments.py">retrieve</a>(environment_id) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
-- <code title="post /v1/environments/{environment_id}?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments.py">update</a>(environment_id, \*\*<a href="src/anthropic/types/beta/environment_update_params.py">params</a>) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
-- <code title="get /v1/environments?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments.py">list</a>(\*\*<a href="src/anthropic/types/beta/environment_list_params.py">params</a>) -> <a href="./src/anthropic/types/beta/beta_environment.py">SyncPageCursor[BetaEnvironment]</a></code>
-- <code title="delete /v1/environments/{environment_id}?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments.py">delete</a>(environment_id) -> <a href="./src/anthropic/types/beta/beta_environment_delete_response.py">BetaEnvironmentDeleteResponse</a></code>
-- <code title="post /v1/environments/{environment_id}/archive?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments.py">archive</a>(environment_id) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
+- <code title="post /v1/environments?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments/environments.py">create</a>(\*\*<a href="src/anthropic/types/beta/environment_create_params.py">params</a>) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
+- <code title="get /v1/environments/{environment_id}?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments/environments.py">retrieve</a>(environment_id) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
+- <code title="post /v1/environments/{environment_id}?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments/environments.py">update</a>(environment_id, \*\*<a href="src/anthropic/types/beta/environment_update_params.py">params</a>) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
+- <code title="get /v1/environments?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments/environments.py">list</a>(\*\*<a href="src/anthropic/types/beta/environment_list_params.py">params</a>) -> <a href="./src/anthropic/types/beta/beta_environment.py">SyncPageCursor[BetaEnvironment]</a></code>
+- <code title="delete /v1/environments/{environment_id}?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments/environments.py">delete</a>(environment_id) -> <a href="./src/anthropic/types/beta/beta_environment_delete_response.py">BetaEnvironmentDeleteResponse</a></code>
+- <code title="post /v1/environments/{environment_id}/archive?beta=true">client.beta.environments.<a href="./src/anthropic/resources/beta/environments/environments.py">archive</a>(environment_id) -> <a href="./src/anthropic/types/beta/beta_environment.py">BetaEnvironment</a></code>
+
+### Work
+
+Types:
+
+```python
+from anthropic.types.beta.environments import (
+    BetaSelfHostedWork,
+    BetaSelfHostedWorkHeartbeatResponse,
+    BetaSelfHostedWorkListResponse,
+    BetaSelfHostedWorkQueueStats,
+    BetaSelfHostedWorkStopRequest,
+    BetaSelfHostedWorkUpdateRequest,
+    BetaSessionWorkData,
+)
+```
+
+Methods:
+
+- <code title="get /v1/environments/{environment_id}/work/{work_id}?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">retrieve</a>(work_id, \*, environment_id) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work.py">BetaSelfHostedWork</a></code>
+- <code title="post /v1/environments/{environment_id}/work/{work_id}?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">update</a>(work_id, \*, environment_id, \*\*<a href="src/anthropic/types/beta/environments/work_update_params.py">params</a>) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work.py">BetaSelfHostedWork</a></code>
+- <code title="get /v1/environments/{environment_id}/work?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">list</a>(environment_id, \*\*<a href="src/anthropic/types/beta/environments/work_list_params.py">params</a>) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work.py">SyncPageCursor[BetaSelfHostedWork]</a></code>
+- <code title="post /v1/environments/{environment_id}/work/{work_id}/ack?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">ack</a>(work_id, \*, environment_id) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work.py">BetaSelfHostedWork</a></code>
+- <code title="post /v1/environments/{environment_id}/work/{work_id}/heartbeat?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">heartbeat</a>(work_id, \*, environment_id, \*\*<a href="src/anthropic/types/beta/environments/work_heartbeat_params.py">params</a>) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work_heartbeat_response.py">BetaSelfHostedWorkHeartbeatResponse</a></code>
+- <code title="get /v1/environments/{environment_id}/work/poll?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">poll</a>(environment_id, \*\*<a href="src/anthropic/types/beta/environments/work_poll_params.py">params</a>) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work.py">Optional[BetaSelfHostedWork]</a></code>
+- <code title="get /v1/environments/{environment_id}/work/stats?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">stats</a>(environment_id) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work_queue_stats.py">BetaSelfHostedWorkQueueStats</a></code>
+- <code title="post /v1/environments/{environment_id}/work/{work_id}/stop?beta=true">client.beta.environments.work.<a href="./src/anthropic/resources/beta/environments/work.py">stop</a>(work_id, \*, environment_id, \*\*<a href="src/anthropic/types/beta/environments/work_stop_params.py">params</a>) -> <a href="./src/anthropic/types/beta/environments/beta_self_hosted_work.py">BetaSelfHostedWork</a></code>
 
 ## Sessions
 
@@ -647,9 +683,12 @@ from anthropic.types.beta import (
     BetaManagedAgentsOutcomeEvaluationResource,
     BetaManagedAgentsSession,
     BetaManagedAgentsSessionAgent,
+    BetaManagedAgentsSessionAgentUpdate,
     BetaManagedAgentsSessionMultiagentCoordinator,
     BetaManagedAgentsSessionStats,
+    BetaManagedAgentsSessionUpdatedEvent,
     BetaManagedAgentsSessionUsage,
+    BetaManagedAgentsUserToolResultEvent,
 )
 ```
 
@@ -739,6 +778,7 @@ from anthropic.types.beta.sessions import (
     BetaManagedAgentsUserMessageEventParams,
     BetaManagedAgentsUserToolConfirmationEvent,
     BetaManagedAgentsUserToolConfirmationEventParams,
+    BetaManagedAgentsUserToolResultEventParams,
 )
 ```
 
@@ -779,7 +819,6 @@ Types:
 ```python
 from anthropic.types.beta.sessions import (
     BetaManagedAgentsSessionThread,
-    BetaManagedAgentsSessionThreadAgent,
     BetaManagedAgentsSessionThreadStats,
     BetaManagedAgentsSessionThreadStatus,
     BetaManagedAgentsSessionThreadUsage,
@@ -981,6 +1020,7 @@ Methods:
 - <code title="get /v1/skills/{skill_id}/versions/{version}?beta=true">client.beta.skills.versions.<a href="./src/anthropic/resources/beta/skills/versions.py">retrieve</a>(version, \*, skill_id) -> <a href="./src/anthropic/types/beta/skills/version_retrieve_response.py">VersionRetrieveResponse</a></code>
 - <code title="get /v1/skills/{skill_id}/versions?beta=true">client.beta.skills.versions.<a href="./src/anthropic/resources/beta/skills/versions.py">list</a>(skill_id, \*\*<a href="src/anthropic/types/beta/skills/version_list_params.py">params</a>) -> <a href="./src/anthropic/types/beta/skills/version_list_response.py">SyncPageCursor[VersionListResponse]</a></code>
 - <code title="delete /v1/skills/{skill_id}/versions/{version}?beta=true">client.beta.skills.versions.<a href="./src/anthropic/resources/beta/skills/versions.py">delete</a>(version, \*, skill_id) -> <a href="./src/anthropic/types/beta/skills/version_delete_response.py">VersionDeleteResponse</a></code>
+- <code title="get /v1/skills/{skill_id}/versions/{version}/content?beta=true">client.beta.skills.versions.<a href="./src/anthropic/resources/beta/skills/versions.py">download</a>(version, \*, skill_id) -> BinaryAPIResponse</code>
 
 ## Webhooks
 

examples/agents_comprehensive.py

@@ -110,16 +110,16 @@ def main() -> None:
     with anthropic.beta.sessions.events.stream(session.id) as stream:
         for event in stream:
             print(event.to_json(indent=2))
+            # `get_weather` is a custom (non-builtin) tool, so the agent emits an
+            # `agent.custom_tool_use` event and expects a `user.custom_tool_result`.
             if event.type == "agent.custom_tool_use" and event.name == "get_weather":
                 anthropic.beta.sessions.events.send(
                     session.id,
                     events=[
                         {
                             "type": "user.custom_tool_result",
                             "custom_tool_use_id": event.id,
-                            "content": [
-                                {"type": "text", "text": '{"temperature_c": 14}'}
-                            ],
+                            "content": [{"type": "text", "text": '{"temperature_c": 14}'}],
                         }
                     ],
                 )