Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add thangchung/agent-engineering-experiment --skill entra-agent-idgit clone --depth 1 https://github.com/thangchung/agent-engineering-experimentWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/thangchung/agent-engineering-experiment/entra-agent-id)<a href="https://agentmods.dev/skills/thangchung/agent-engineering-experiment/entra-agent-id"><img src="https://agentmods.dev/badge/skills/thangchung/agent-engineering-experiment/entra-agent-id/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/thangchung/agent-engineering-experiment/entra-agent-id"><img src="https://agentmods.dev/badge/skills/thangchung/agent-engineering-experiment/entra-agent-id.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00131 | $0.03693 |
| Opus 5 | $0.00066 | $0.01847 |
| Sonnet 5 | $0.00026 | $0.00739 |
| Haiku 4.5 | $0.00013 | $0.00369 |
Grade A, and why
entra-agent-id scanned grade A with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
resp = requests.post( Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
user_id = subprocess.run( This is a copy
98% identical to entra-agent-id — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 357 lines — stays where its author put it; the contents beside it link to each section on GitHub.
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"
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 357 lines · 131 tokens per session scan A b6e9e6d96a42
entra-agent-id is a skill published in the GitHub repository thangchung/agent-engineering-experiment (24 stars, last pushed 1mo ago), licensed MIT. It adds 131 tokens to every session and 3,693 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). It is 98% identical to entra-agent-id, differing in 2 lines, and is treated as a copy.
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