
entra-agent-id
Provision Microsoft Entra Agent Identity Blueprints, BlueprintPrincipals, and per-instance Agent Identities via Microsoft Graph, and configure OAuth 2.0 token exchange (fmipath, OBO, cross-tenant) including the Microsoft Entra SDK for AgentID sidecar. USE FOR: Agent Identity Blueprint, BlueprintPrincipal, agent OAuth, fmipath token exchange, agent OBO, Workload Identity Federation for agents, polyglot agent auth, Microsoft.Identity.Web.AgentIdentities. DO NOT USE FOR: standard Entra app registration (use entra-app-registration), Microsoft Foundry agent authoring (use microsoft-foundry).
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/microsoft/azure-skills --skill entra-agent-id- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads entra-agent-id automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
Security audits
Independent scans of the skill's instructions and bundled files.
SKILL.md
The instructions your agent reads when the skill is triggered.
Microsoft Entra Agent ID
Create and manage OAuth 2.0-capable identities for AI agents using Microsoft Graph. Every agent instance gets a distinct identity, audit trail, and independently-scoped permission grants.
Quick Reference
| Property | Value |
|---|---|
| Service | Microsoft Entra Agent ID |
| API | Microsoft Graph (https://graph.microsoft.com/v1.0) |
| Required role | Agent Identity Developer, Agent Identity Administrator, or Application Administrator |
| Object model | Blueprint (application) → BlueprintPrincipal (SP) → Agent Identity (SP) |
| Runtime exchange | Two-step fmi_path exchange (autonomous and OBO) |
| .NET helper | Microsoft.Identity.Web.AgentIdentities |
| Polyglot helper | Microsoft Entra SDK for AgentID (sidecar container) |
When to Use This Skill
- Provisioning a new Agent Identity Blueprint and BlueprintPrincipal
- Creating per-instance Agent Identities under a Blueprint
- Configuring credentials (FIC, Managed Identity, or client secret) on the Blueprint
- Implementing the two-step
fmi_pathruntime token exchange (autonomous or OBO) - Cross-tenant agent token flows
- Deploying the Microsoft Entra SDK for AgentID sidecar for polyglot agents (Python, Node, Go, Java)
- Granting per-Agent-Identity application (
appRoleAssignments) or delegated (oauth2PermissionGrants) permissions - Diagnosing Agent ID errors such as
AADSTS82001,AADSTS700211, orPropertyNotCompatibleWithAgentIdentity
MCP Tools
| Tool | Use |
|---|---|
mcp_azure_mcp_documentation | Search Microsoft Learn for current Agent ID setup, Graph API shapes, and SDK configuration |
There is no dedicated Agent Identity MCP server today. This skill guides direct Microsoft Graph API calls (PowerShell or Python requests). Use mcp_azure_mcp_documentation to verify request bodies and endpoints against current docs before running.
Before You Start
Use the mcp_azure_mcp_documentation tool to search Microsoft Learn for current Agent ID documentation:
- "Microsoft Entra Agent ID setup instructions"
- "Microsoft Entra SDK for AgentID"
Verify request bodies and endpoints against the installed SDK version — Graph API shapes evolve.
Conceptual Model
Agent Identity Blueprint (application) ← one per agent type/project
└── BlueprintPrincipal (service principal) ← MUST be created explicitly
├── Agent Identity (SP): agent-1 ← one per agent instance
├── Agent Identity (SP): agent-2
└── Agent Identity (SP): agent-3
| Concept | Description |
|---|---|
| Blueprint | Application object that defines a type/class of agent. Holds credentials (secret, certificate, federated identity). |
| BlueprintPrincipal | Service principal for the Blueprint in the tenant. Not auto-created. |
| Agent Identity | Service-principal-only identity for a single agent instance. Cannot hold its own credentials. |
| Sponsor | A User (or Group, for Agent Identity) who is responsible for the identity. Required on creation. |
Prerequisites
Required Entra Roles
One of: Agent Identity Developer, Agent Identity Administrator, or Application Administrator.
PowerShell (interactive setup)
# PowerShell 7+
Install-Module Microsoft.Graph.Applications -Scope CurrentUser -Force
Python (programmatic provisioning)
pip install azure-identity requests
Authentication
DefaultAzureCredentialis not supported. Azure CLI tokens carryDirectory.AccessAsUser.All, which Agent Identity APIs hard-reject (403). Use a dedicated app registration withclient_credentials, orConnect-MgGraphwith explicit delegated scopes.
PowerShell (delegated)
Connect-MgGraph -Scopes @(
"AgentIdentityBlueprint.Create",
"AgentIdentityBlueprint.ReadWrite.All",
"AgentIdentityBlueprintPrincipal.Create",
"AgentIdentity.Create.All",
"User.Read"
)
Python (application)
import os, requests
from azure.identity import ClientSecretCredential
credential = ClientSecretCredential(
tenant_id=os.environ["AZURE_TENANT_ID"],
client_id=os.environ["AZURE_CLIENT_ID"],
client_secret=os.environ["AZURE_CLIENT_SECRET"],
)
token = credential.get_token("https://graph.microsoft.com/.default")
GRAPH = "https://graph.microsoft.com/v1.0"
headers = {
"Authorization": f"Bearer {token.token}",
"Content-Type": "application/json",
"OData-Version": "4.0",
}
Core Workflow
Step 1: Create Agent Identity Blueprint
Use the typed endpoint. Sponsors must be Users at Blueprint creation. This snippet assumes the requests client and headers dict from the Python authentication block above.
import subprocess
import requests
user_id = subprocess.run(
["az", "ad", "signed-in-user", "show", "--query", "id", "-o", "tsv"],
capture_output=True, text=True, check=True,
).stdout.strip()
blueprint_body = {
"displayName": "My Agent Blueprint",
"sponsors@odata.bind": [
f"https://graph.microsoft.com/v1.0/users/{user_id}"
],
}
resp = requests.post(
f"{GRAPH}/applications/microsoft.graph.agentIdentityBlueprint",
headers=headers, json=blueprint_body,
)
resp.raise_for_status()
blueprint = resp.json()
app_id = blueprint["appId"]
blueprint_obj_id = blueprint["id"]
Step 2: Create BlueprintPrincipal
Mandatory. Creating a Blueprint does NOT auto-create its service principal. Skipping this step produces:
400: The Agent Blueprint Principal for the Agent Blueprint does not exist.
sp_body = {"appId": app_id}
resp = requests.post(
f"{GRAPH}/servicePrincipals/microsoft.graph.agentIdentityBlueprintPrincipal",
headers=headers, json=sp_body,
)
resp.raise_for_status()
Make your provisioning scripts idempotent — always check for the BlueprintPrincipal even when the Blueprint already exists.
Step 3: Create Agent Identities
Sponsors for an Agent Identity may be Users or Groups.
agent_body = {
"displayName": "my-agent-instance-1",
"agentIdentityBlueprintId": app_id,
"sponsors@odata.bind": [
f"https://graph.microsoft.com/v1.0/users/{user_id}"
],
}
resp = requests.post(
f"{GRAPH}/servicePrincipals/microsoft.graph.agentIdentity",
headers=headers, json=agent_body,
)
resp.raise_for_status()
agent = resp.json()
agent_sp_id = agent["id"]
Runtime Authentication
Agents authenticate at runtime using credentials configured on the Blueprint (not on the Agent Identity — Agent Identities can't hold credentials).
| Option | Use case | Credential on Blueprint |
|---|---|---|
| Managed Identity + WIF | Production (Azure-hosted) | Federated Identity Credential |
| Client secret | Local dev / testing | Password credential |
| Microsoft Entra SDK for AgentID | Polyglot / 3P agents | Sidecar container acquires tokens over HTTP |
For the two-step fmi_path exchange (parent token → per-Agent-Identity Graph token) that gives each agent instance a distinct sub claim and audit trail, see references/runtime-token-exchange.md.
For OBO (agent acting on behalf of a user), see references/obo-blueprint-setup.md.
For the containerized polyglot auth sidecar (Python, Node, Go, Java — no SDK embedding), see references/sdk-sidecar.md.
For MI+WIF and client-secret setup details, see references/oauth2-token-flow.md.
.NET quick path
For .NET services, use Microsoft.Identity.Web.AgentIdentities — it handles Federated Identity Credential management and the two-step exchange for you. See the package README at github.com/AzureAD/microsoft-identity-web under src/Microsoft.Identity.Web.AgentIdentities/.
Granting Permissions (Per Agent Identity)
Agent Identities support both application permissions (autonomous) and delegated permissions (OBO). Grants are scoped per Agent Identity, not to the BlueprintPrincipal.
Application permissions (autonomous)
graph_sp = requests.get(
f"{GRAPH}/servicePrincipals?$filter=appId eq '00000003-0000-0000-c000-000000000000'",
headers=headers,
).json()["value"][0]
user_read_all = next(r for r in graph_sp["appRoles"] if r["value"] == "User.Read.All")
requests.post(
f"{GRAPH}/servicePrincipals/{agent_sp_id}/appRoleAssignments",
headers=headers,
json={
"principalId": agent_sp_id,
"resourceId": graph_sp["id"],
"appRoleId": user_read_all["id"],
},
).raise_for_status()
Delegated permissions (OBO)
from datetime import datetime, timedelta, timezone
expiry = (datetime.now(timezone.utc) + timedelta(days=3650)).strftime("%Y-%m-%dT%H:%M:%SZ")
requests.post(
f"{GRAPH}/oauth2PermissionGrants",
headers=headers,
json={
"clientId": agent_sp_id,
"consentType": "AllPrincipals",
"resourceId": graph_sp["id"],
"scope": "User.Read Tasks.ReadWrite Mail.Send",
"expiryTime": expiry,
},
).raise_for_status()
Browser-based admin consent URLs do not work for Agent Identities — use oauth2PermissionGrants for programmatic delegated consent.
Cross-Tenant Agent Identities
Blueprints can be multi-tenant (signInAudience: AzureADMultipleOrgs). When exchanging tokens cross-tenant:
Step 1 of the parent token exchange MUST target the Agent Identity's home tenant, not the Blueprint's. Wrong tenant →
AADSTS700211: No matching federated identity record found.
See references/runtime-token-exchange.md for full cross-tenant examples.
API Reference
| Operation | Method | Endpoint |
|---|---|---|
| Create Blueprint | POST | /applications/microsoft.graph.agentIdentityBlueprint |
| Create BlueprintPrincipal | POST | /servicePrincipals/microsoft.graph.agentIdentityBlueprintPrincipal |
| Create Agent Identity | POST | /servicePrincipals/microsoft.graph.agentIdentity |
| Add FIC to Blueprint | POST | /applications/{id}/microsoft.graph.agentIdentityBlueprint/federatedIdentityCredentials |
| List Agent Identities | GET | /servicePrincipals/microsoft.graph.agentIdentity |
| Grant app permission | POST | /servicePrincipals/{id}/appRoleAssignments |
| Grant delegated permission | POST | /oauth2PermissionGrants |
| Delete Agent Identity | DELETE | /servicePrincipals/{id} |
| Delete Blueprint | DELETE | /applications/{id} |
Base URL: https://graph.microsoft.com/v1.0.
Required Graph Permissions
| Permission | Purpose |
|---|---|
AgentIdentityBlueprint.Create | Create Blueprints |
AgentIdentityBlueprint.ReadWrite.All | Read/update Blueprints |
AgentIdentityBlueprintPrincipal.Create | Create BlueprintPrincipals |
AgentIdentity.Create.All | Create Agent Identities |
AgentIdentity.ReadWrite.All | Read/update Agent Identities |
Application.ReadWrite.All | Blueprint CRUD on application objects |
AppRoleAssignment.ReadWrite.All | Grant application permissions |
DelegatedPermissionGrant.ReadWrite.All | Grant delegated permissions |
Grant admin consent (required for application permissions):
az ad app permission admin-consent --id <client-id>
After admin consent, tokens may not include new claims for 30–120 seconds — retry with exponential backoff.
Best Practices
- Always create BlueprintPrincipal after Blueprint — not auto-created.
- Use typed endpoints (
/applications/microsoft.graph.agentIdentityBlueprint) instead of raw/applicationswith@odata.type. - Credentials live on the Blueprint — Agent Identities can't hold secrets/certs (
PropertyNotCompatibleWithAgentIdentity). - Include
OData-Version: 4.0on every Graph request. - Use Workload Identity Federation for production — client secrets only for local dev.
- Set
identifierUris: ["api://{appId}"]on the Blueprint before OAuth2 scope resolution. - Never use Azure CLI tokens for Agent Identity APIs —
Directory.AccessAsUser.Allcauses hard 403. - Use
fmi_pathwithclient_credentials— NOT RFC 8693urn:ietf:params:oauth:grant-type:token-exchange(returnsAADSTS82001). - Always use
/.defaultscope in both steps of the exchange — individual scopes fail. - Step 1 targets the Agent Identity's home tenant in cross-tenant flows.
- Grant permissions per Agent Identity, not to the BlueprintPrincipal.
- Handle permission-propagation delays — retry 403s with 30–120s backoff after admin consent.
- Keep the Entra SDK for AgentID on localhost — never expose via LoadBalancer or Ingress.
Troubleshooting
| Error | Cause | Fix |
|---|---|---|
AADSTS82001 | Used RFC 8693 token-exchange grant | Use client_credentials with fmi_path |
AADSTS700211 | Step 1 parent token targeted wrong tenant | Target Agent Identity's home tenant |
AADSTS50013 | OBO user token targets Graph, not Blueprint | Use api://{blueprint_app_id}/access_as_user |
AADSTS65001 | Missing grant or used individual scopes | Use /.default and verify oauth2PermissionGrants |
403 Authorization_RequestDenied | No grant on this Agent Identity | Add via appRoleAssignments or oauth2PermissionGrants |
PropertyNotCompatibleWithAgentIdentity | Tried to add credential to Agent Identity SP | Put credentials on the Blueprint |
Agent Blueprint Principal does not exist | BlueprintPrincipal not created | Step 2 of the Core Workflow |
AADSTS650051 on admin consent | SP already exists from partial consent | Grant directly via appRoleAssignments |
References
| File | Contents |
|---|---|
| references/runtime-token-exchange.md | Two-step fmi_path exchange: autonomous + OBO, cross-tenant |
| references/oauth2-token-flow.md | MI + WIF (production) and client secret (local dev) |
| references/obo-blueprint-setup.md | Configuring the Blueprint as an OAuth2 API for OBO |
| references/sdk-sidecar.md | Microsoft Entra SDK for AgentID — architecture, configuration, endpoints |
| references/sdk-sidecar-deployment.md | SDK code patterns (Python/TypeScript), Docker/Kubernetes manifests, security, troubleshooting |
| references/known-limitations.md | Documented gaps organized by category |
External Links
| Resource | URL |
|---|---|
| Agent ID Setup Guide | https://learn.microsoft.com/en-us/entra/agent-id/identity-platform/agent-id-setup-instructions |
| AI-Guided Setup | https://learn.microsoft.com/en-us/entra/agent-id/identity-platform/agent-id-ai-guided-setup |
| Microsoft Entra SDK for AgentID | https://learn.microsoft.com/en-us/entra/msidweb/agent-id-sdk/overview |
| Microsoft.Identity.Web.AgentIdentities (.NET) | https://github.com/AzureAD/microsoft-identity-web/blob/master/src/Microsoft.Identity.Web.AgentIdentities/README.AgentIdentities.md |
FAQ
What does the entra-agent-id skill do?
Provision Microsoft Entra Agent Identity Blueprints, BlueprintPrincipals, and per-instance Agent Identities via Microsoft Graph, and configure OAuth 2.0 token exchange (fmipath, OBO, cross-tenant) including the Microsoft Entra SDK for AgentID sidecar. USE FOR: Agent Identity Blueprint, BlueprintPrincipal, agent OAuth, fmipath token exchange, agent OBO, Workload Identity Federation for agents, polyglot agent auth, Microsoft.Identity.Web.AgentIdentities. DO NOT USE FOR: standard Entra app registration (use entra-app-registration), Microsoft Foundry agent authoring (use microsoft-foundry).
How do I install entra-agent-id?
Run npx skills add https://github.com/microsoft/azure-skills --skill entra-agent-id in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/entra-agent-id/ (personal) or .claude/skills/entra-agent-id/ (project).
Which AI agents can use entra-agent-id?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is entra-agent-id safe to install?
Security partners have reviewed it: Gen Agent Trust Hub passed; Socket flagged items to review; Snyk passed. As with any skill, read the SKILL.md and bundled scripts before installing.
Who maintains entra-agent-id?
It is published by microsoft in microsoft/azure-skills, and it is an official skill from the maker of the technology it covers. It has 336,561 recorded installs.
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