diff --git a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
index 65cfb95065..889630e4c6 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -51148,7 +51148,7 @@
     "/enterprises/{enterprise}/copilot/custom-agents/source": {
       "get": {
         "summary": "Get the source organization for custom agents in an enterprise",
-        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
+        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
         "tags": [
           "copilot"
         ],
diff --git a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index 34af797bfa..5d2f8be120 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions-next/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -19796,7 +19796,7 @@ paths:
         Custom agents are enterprise-defined AI agents stored as markdown files in a special repository.
         An enterprise admin configures one organization as the "source" for custom agents and
         Copilot CLI client settings, and that org must have a repo named `.github-private` containing agent
-        definitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
+        definitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
 
         Enterprise owners with read access to AI Controls can use this endpoint.
 
diff --git a/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.json b/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.json
index 7db8ae7190..b42da8d8b0 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.json
@@ -51015,7 +51015,7 @@
     "/enterprises/{enterprise}/copilot/custom-agents/source": {
       "get": {
         "summary": "Get the source organization for custom agents in an enterprise",
-        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
+        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
         "tags": [
           "copilot"
         ],
diff --git a/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.yaml b/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.yaml
index 2af25ce016..a6ff30417e 100644
--- a/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.yaml
+++ b/descriptions-next/ghec/dereferenced/ghec.2026-03-10.deref.yaml
@@ -19744,7 +19744,7 @@ paths:
         Custom agents are enterprise-defined AI agents stored as markdown files in a special repository.
         An enterprise admin configures one organization as the "source" for custom agents and
         Copilot CLI client settings, and that org must have a repo named `.github-private` containing agent
-        definitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
+        definitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
 
         Enterprise owners with read access to AI Controls can use this endpoint.
 
diff --git a/descriptions-next/ghec/dereferenced/ghec.deref.json b/descriptions-next/ghec/dereferenced/ghec.deref.json
index 610b34f8ee..e1ba410f77 100644
--- a/descriptions-next/ghec/dereferenced/ghec.deref.json
+++ b/descriptions-next/ghec/dereferenced/ghec.deref.json
@@ -51595,7 +51595,7 @@
     "/enterprises/{enterprise}/copilot/custom-agents/source": {
       "get": {
         "summary": "Get the source organization for custom agents in an enterprise",
-        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
+        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
         "tags": [
           "copilot"
         ],
diff --git a/descriptions-next/ghec/dereferenced/ghec.deref.yaml b/descriptions-next/ghec/dereferenced/ghec.deref.yaml
index afde356086..6b894fff19 100644
--- a/descriptions-next/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions-next/ghec/dereferenced/ghec.deref.yaml
@@ -19950,7 +19950,7 @@ paths:
         Custom agents are enterprise-defined AI agents stored as markdown files in a special repository.
         An enterprise admin configures one organization as the "source" for custom agents and
         Copilot CLI client settings, and that org must have a repo named `.github-private` containing agent
-        definitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
+        definitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
 
         Enterprise owners with read access to AI Controls can use this endpoint.
 
diff --git a/descriptions-next/ghec/ghec.2022-11-28.json b/descriptions-next/ghec/ghec.2022-11-28.json
index 36f7bcc29d..9f0f0c797d 100644
--- a/descriptions-next/ghec/ghec.2022-11-28.json
+++ b/descriptions-next/ghec/ghec.2022-11-28.json
@@ -12831,7 +12831,7 @@
     "/enterprises/{enterprise}/copilot/custom-agents/source": {
       "get": {
         "summary": "Get the source organization for custom agents in an enterprise",
-        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
+        "description": "Gets the organization and repository configured as the source for custom agent definitions and Copilot CLI client settings in an enterprise.\n\nCustom agents are enterprise-defined AI agents stored as markdown files in a special repository.\nAn enterprise admin configures one organization as the \"source\" for custom agents and\nCopilot CLI client settings, and that org must have a repo named `.github-private` containing agent\ndefinitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).\n\nEnterprise owners with read access to AI Controls can use this endpoint.\n\nOAuth app tokens and personal access tokens (classic) need the `admin:enterprise` scope to use this endpoint.\n",
         "tags": [
           "copilot"
         ],
diff --git a/descriptions-next/ghec/ghec.2022-11-28.yaml b/descriptions-next/ghec/ghec.2022-11-28.yaml
index 16ab9555b2..2944a611dd 100644
--- a/descriptions-next/ghec/ghec.2022-11-28.yaml
+++ b/descriptions-next/ghec/ghec.2022-11-28.yaml
@@ -9440,7 +9440,7 @@ paths:
         Custom agents are enterprise-defined AI agents stored as markdown files in a special repository.
         An enterprise admin configures one organization as the "source" for custom agents and
         Copilot CLI client settings, and that org must have a repo named `.github-private` containing agent
-        definitions in `/agents/*.md`, or enterprise-managed AI standards in `.github/copilot/settings.json`. [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
+        definitions in `/agents/*.md`, or enterprise-managed AI standards in `copilot/managed-settings.json` (with fallback to `.github/copilot/settings.json`). [Learn more about configuring enterprise-managed AI standards for Copilot clients](https://docs.github.com/enterprise-cloud@latest/copilot/how-tos/administer-copilot/manage-for-enterprise/manage-agents/configure-enterprise-plugin-standards).
 
         Enterprise owners with read access to AI Controls can use this endpoint.
 
diff --git a/descriptions-next/ghec/ghec.2026-03-10.json b/descriptions-next/ghec/ghec.2026-03-10.json
index 9edd6d38d9..d526081b46 100644
--- a/descriptions-next/ghec/ghec.2026-03-10.json
+++ b/descriptions-next/ghec/ghec.2026-03-10.json
@@ {"code":"deadline_exceeded","msg":"operation timed out"}