Fixes elastic#261258
possibly also elastic#264565 (to be
verified)

## Summary

Add `meta: { id }` to Fleet body/response schemas

Files changed:

- `server/types/models/agent_policy.ts` — versioned policy schemas
(v3–v6), `new_agent_policy`, `agent_policy`, `agent_policy_response`,
`full_agent_policy`, outputs responses
- `server/types/rest_spec/agent_policy.ts` — bulk get, copy, delete,
full policy, K8s manifest, list outputs, cleanup task request/response
schemas
- `server/types/models/enrollment_api_key.ts `— `enrollment_api_key`
- `server/types/rest_spec/enrollment_api_key.ts` — enrollment key CRUD
and bulk delete schemas
- `common/types/models/package_policy_schema.ts `— all package policy
schemas: new, versioned (v22–v24), simplified, update, response,
dry-run, status
- `server/types/rest_spec/package_policy.ts` — bulk get, create, delete,
upgrade, dry-run schemas
- `server/types/rest_spec/epm.ts `— ~40 package management schemas
(categories, package info/list/stats, install/delete/bulk operations,
etc.)
- `server/types/rest_spec/agent.ts` — `action_id_response` /
`action_message_response` branches of `ActionIdOrMessageSchema`
(resolves items #1 and #2 of elastic#264565)

### Testing
Verified locally with:
```
node scripts/capture_oas_snapshot --no-serverless --include-path /api/fleet
node scripts/validate_oas_docs
node scripts/check_api_contracts --distribution stack
```

It looks like there are no Fleet errors left after this change but the
final verification step will be ran in the ci for Terraform

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

# Backport

This will backport the following commits from `main` to `9.4`:
- [[Fleet] Add meta:{id} to fleet schemas
(#270560)](#270560)

<!--- Backport version: 11.0.2 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sorenlouv/backport)

<!--BACKPORT [{"author":{"name":"Cristina
Amico","email":"criamico@users.noreply.github.com"},"sourceCommit":{"committedDate":"2026-05-27T08:37:31Z","message":"[Fleet]
Add meta:{id} to fleet schemas (#270560)\n\nFixes
https://github.com/elastic/kibana/issues/261258\npossibly also
#264565 (to be\nverified)\n\n##
Summary\n\nAdd `meta: { id }` to Fleet body/response schemas\n\nFiles
changed:\n\n- `server/types/models/agent_policy.ts` — versioned policy
schemas\n(v3–v6), `new_agent_policy`, `agent_policy`,
`agent_policy_response`,\n`full_agent_policy`, outputs responses\n-
`server/types/rest_spec/agent_policy.ts` — bulk get, copy, delete,\nfull
policy, K8s manifest, list outputs, cleanup task
request/response\nschemas\n- `server/types/models/enrollment_api_key.ts
`— `enrollment_api_key`\n-
`server/types/rest_spec/enrollment_api_key.ts` — enrollment key
CRUD\nand bulk delete schemas\n-
`common/types/models/package_policy_schema.ts `— all package
policy\nschemas: new, versioned (v22–v24), simplified, update,
response,\ndry-run, status\n- `server/types/rest_spec/package_policy.ts`
— bulk get, create, delete,\nupgrade, dry-run schemas\n-
`server/types/rest_spec/epm.ts `— ~40 package management
schemas\n(categories, package info/list/stats, install/delete/bulk
operations,\netc.)\n- `server/types/rest_spec/agent.ts` —
`action_id_response` /\n`action_message_response` branches of
`ActionIdOrMessageSchema`\n(resolves items #1 and #2 of #264565)\n\n###
Testing\nVerified locally with:\n```\nnode scripts/capture_oas_snapshot
--no-serverless --include-path /api/fleet\nnode
scripts/validate_oas_docs\nnode scripts/check_api_contracts
--distribution stack\n```\n\nIt looks like there are no Fleet errors
left after this change but the\nfinal verification step will be ran in
the ci for Terraform\n\n---------\n\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\nCo-authored-by:
Elastic Machine
<elasticmachine@users.noreply.github.com>","sha":"f8da12e93c739443107cbaf2e883f1d7a30d9456","branchLabelMapping":{"^v9.5.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","backport
missing","Team:Fleet","backport:version","v9.4.0","v9.5.0"],"title":"[Fleet]
Add meta:{id} to fleet
schemas","number":270560,"url":"https://github.com/elastic/kibana/pull/270560","mergeCommit":{"message":"[Fleet]
Add meta:{id} to fleet schemas (#270560)\n\nFixes
https://github.com/elastic/kibana/issues/261258\npossibly also
#264565 (to be\nverified)\n\n##
Summary\n\nAdd `meta: { id }` to Fleet body/response schemas\n\nFiles
changed:\n\n- `server/types/models/agent_policy.ts` — versioned policy
schemas\n(v3–v6), `new_agent_policy`, `agent_policy`,
`agent_policy_response`,\n`full_agent_policy`, outputs responses\n-
`server/types/rest_spec/agent_policy.ts` — bulk get, copy, delete,\nfull
policy, K8s manifest, list outputs, cleanup task
request/response\nschemas\n- `server/types/models/enrollment_api_key.ts
`— `enrollment_api_key`\n-
`server/types/rest_spec/enrollment_api_key.ts` — enrollment key
CRUD\nand bulk delete schemas\n-
`common/types/models/package_policy_schema.ts `— all package
policy\nschemas: new, versioned (v22–v24), simplified, update,
response,\ndry-run, status\n- `server/types/rest_spec/package_policy.ts`
— bulk get, create, delete,\nupgrade, dry-run schemas\n-
`server/types/rest_spec/epm.ts `— ~40 package management
schemas\n(categories, package info/list/stats, install/delete/bulk
operations,\netc.)\n- `server/types/rest_spec/agent.ts` —
`action_id_response` /\n`action_message_response` branches of
`ActionIdOrMessageSchema`\n(resolves items #1 and #2 of #264565)\n\n###
Testing\nVerified locally with:\n```\nnode scripts/capture_oas_snapshot
--no-serverless --include-path /api/fleet\nnode
scripts/validate_oas_docs\nnode scripts/check_api_contracts
--distribution stack\n```\n\nIt looks like there are no Fleet errors
left after this change but the\nfinal verification step will be ran in
the ci for Terraform\n\n---------\n\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\nCo-authored-by:
Elastic Machine
<elasticmachine@users.noreply.github.com>","sha":"f8da12e93c739443107cbaf2e883f1d7a30d9456"}},"sourceBranch":"main","suggestedTargetBranches":["9.4"],"targetPullRequestStates":[{"branch":"9.4","label":"v9.4.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v9.5.0","branchLabelMappingKey":"^v9.5.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/270560","number":270560,"mergeCommit":{"message":"[Fleet]
Add meta:{id} to fleet schemas (#270560)\n\nFixes
https://github.com/elastic/kibana/issues/261258\npossibly also
#264565 (to be\nverified)\n\n##
Summary\n\nAdd `meta: { id }` to Fleet body/response schemas\n\nFiles
changed:\n\n- `server/types/models/agent_policy.ts` — versioned policy
schemas\n(v3–v6), `new_agent_policy`, `agent_policy`,
`agent_policy_response`,\n`full_agent_policy`, outputs responses\n-
`server/types/rest_spec/agent_policy.ts` — bulk get, copy, delete,\nfull
policy, K8s manifest, list outputs, cleanup task
request/response\nschemas\n- `server/types/models/enrollment_api_key.ts
`— `enrollment_api_key`\n-
`server/types/rest_spec/enrollment_api_key.ts` — enrollment key
CRUD\nand bulk delete schemas\n-
`common/types/models/package_policy_schema.ts `— all package
policy\nschemas: new, versioned (v22–v24), simplified, update,
response,\ndry-run, status\n- `server/types/rest_spec/package_policy.ts`
— bulk get, create, delete,\nupgrade, dry-run schemas\n-
`server/types/rest_spec/epm.ts `— ~40 package management
schemas\n(categories, package info/list/stats, install/delete/bulk
operations,\netc.)\n- `server/types/rest_spec/agent.ts` —
`action_id_response` /\n`action_message_response` branches of
`ActionIdOrMessageSchema`\n(resolves items #1 and #2 of #264565)\n\n###
Testing\nVerified locally with:\n```\nnode scripts/capture_oas_snapshot
--no-serverless --include-path /api/fleet\nnode
scripts/validate_oas_docs\nnode scripts/check_api_contracts
--distribution stack\n```\n\nIt looks like there are no Fleet errors
left after this change but the\nfinal verification step will be ran in
the ci for Terraform\n\n---------\n\nCo-authored-by: kibanamachine
<42973632+kibanamachine@users.noreply.github.com>\nCo-authored-by:
Elastic Machine
<elasticmachine@users.noreply.github.com>","sha":"f8da12e93c739443107cbaf2e883f1d7a30d9456"}}]}]
BACKPORT-->

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>
Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>