Implement spawn subagent tool

[luisorofino]

What does this PR do?

Motivation

Review checklist (to be filled by reviewers)

• Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• Add qa/required if this PR needs QA validation, or qa/skip-qa if it does not. Exactly one of the two is required.
• If you need to backport this PR to another branch, you can add the backport/<branch-name> label to the PR and it will automatically open a backport PR once this one is merged

[dd-octo-sts]

Validation Report

All 21 validations passed.

Show details

Validation	Description	Status
agent-reqs	Verify check versions match the Agent requirements file	✅
ci	Validate CI configuration and code coverage settings	✅
codeowners	Validate every integration has a CODEOWNERS entry	✅
config	Validate default configuration files against spec.yaml	✅
dep	Verify dependency pins are consistent and Agent-compatible	✅
http	Validate integrations use the HTTP wrapper correctly	✅
imports	Validate check imports do not use deprecated modules	✅
integration-style	Validate check code style conventions	✅
jmx-metrics	Validate JMX metrics definition files and config	✅
labeler	Validate PR labeler config matches integration directories	✅
legacy-signature	Validate no integration uses the legacy Agent check signature	✅
license-headers	Validate Python files have proper license headers	✅
licenses	Validate third-party license attribution list	✅
metadata	Validate metadata.csv metric definitions	✅
models	Validate configuration data models match spec.yaml	✅
openmetrics	Validate OpenMetrics integrations disable the metric limit	✅
package	Validate Python package metadata and naming	✅
qa-label	Validate the pull request declares whether it needs QA for the next Agent release	✅
readmes	Validate README files have required sections	✅
saved-views	Validate saved view JSON file structure and fields	✅
version	Validate version consistency between package and changelog	✅

View full run

[datadog-datadog-prod-us1-2]

   

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 5 Pipeline jobs failed

PR All | test / j06ca546 / SNMP     

🔄 Retry job. This looks flaky and may succeed on retry.

ConnectionError: HTTPSConnectionPool(host='ddintegrations.blob.core.windows.net', port=443): Max retries exceeded with url: /snmp/cisco-3850.snmprec (Caused by NameResolutionError: Failed to resolve 'ddintegrations.blob.core.windows.net')

PR All | test / j46da136 / JBoss_WildFly     

🔄 Retry job. This looks flaky and may succeed on retry.

Could not resolve: ddintegrations.blob.core.windows.net:443

PR All | test / j5a9585a / IBM ACE     

🔄 Retry job. This looks flaky and may succeed on retry.

Could not resolve host: ddintegrations.blob.core.windows.net while attempting to execute command.

View all 5 failed jobs.

🧪 20 Tests failed in 1 job

PR All | run  

test_bulk_table from test_check.py   (Fix with Cursor)

HTTPSConnectionPool(host='ddintegrations.blob.core.windows.net', port=443): Max retries exceeded with url: /snmp/cisco-3850.snmprec (Caused by NameResolutionError("HTTPSConnection(host='ddintegrations.blob.core.windows.net', port=443): Failed to resolve 'ddintegrations.blob.core.windows.net' ([Errno -2] Name or service not known)"))

test_cast_metrics from test_check.py   (Fix with Cursor)

HTTPSConnectionPool(host='ddintegrations.blob.core.windows.net', port=443): Max retries exceeded with url: /snmp/cisco-3850.snmprec (Caused by NameResolutionError("HTTPSConnection(host='ddintegrations.blob.core.windows.net', port=443): Failed to resolve 'ddintegrations.blob.core.windows.net' ([Errno -2] Name or service not known)"))

View all 20 test failures

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

🎯 Code Coverage (details)
• Patch Coverage: 97.98%
• Overall Coverage: 87.87%

Useful? React with 👍 / 👎

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: a5757e5 | Docs | Datadog PR Page | Give us feedback!}

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: a5757e5e7c

ℹ️ About Codex in GitHub

Codex has been enabled to automatically review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

When you sign up for Codex through ChatGPT, Codex can also answer questions or update the PR, like "@codex address that feedback".

[chatgpt-codex-connector]

Restrict subagents to the current run's tools

When a caller runs ReActProcess.start(..., allowed_tools=["spawn_subagent"]) or another per-task subset, this validation still compares the child request against _allowed_tools captured from the full registry at construction time. That lets the parent invoke spawn_subagent and ask the child for tools that were intentionally hidden for the current run, bypassing the allowed_tools restriction documented on ReActProcess.start; the effective child allowlist needs to be intersected with the current run's allowlist before building the subagent.

Useful? React with 👍 / 👎.

[luisorofino]

• Implement spawn subagent tool #23876 👈 (View in Graphite)
• loa/openmetrics-ai-gen

This stack of pull requests is managed by Graphite. Learn more about stacking.