ai901-cert-buddy

ai901-cert-buddy is an agent for Claude Code from timothywarner-org/ai901-cert-buddy-claude. It costs 69 tokens per session (772 once invoked), scanned A, original, MIT.

An AI-901 study assistant for creating practice questions, hands-on Microsoft Foundry labs, and personalised study plans using Microsoft Learn as its source.

In plain words
What is it for?
Use it when you want an AI-901 quiz, a practical lab, or a study plan based on your confidence across the exam domains.
Why use it?
It brings several kinds of exam preparation into one workflow while requiring claims to be based on current Microsoft documentation.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions subagents.

Good fit Use it when you want an AI-901 quiz, a practical lab, or a study plan based on your confidence across the exam domains.

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Install with agentmods
npx agentmods add agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy
Install

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.

Clone the repo
git clone --depth 1 https://github.com/timothywarner-org/ai901-cert-buddy-claude

Made for: Claude Code.

Wrote 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.

agentmods badge for ai901-cert-buddy

README.md
[![agentmods](https://agentmods.dev/badge/agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy/github.svg)](https://agentmods.dev/agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy)
Your own site
<a href="https://agentmods.dev/agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy"><img src="https://agentmods.dev/badge/agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy/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.

agentmods 80×15 button for ai901-cert-buddy

Your own site · 80×15
<a href="https://agentmods.dev/agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy"><img src="https://agentmods.dev/badge/agents/timothywarner-org/ai901-cert-buddy-claude/ai901-cert-buddy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 69 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 772 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00069 $0.00772
Opus 5 $0.00034 $0.00386
Sonnet 5 $0.00014 $0.00154
Haiku 4.5 $0.00007 $0.00077

Measured 11d ago against content hash 88ad8c4d9e52, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ai901-cert-buddy scanned grade A with 0 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 11d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/agents/ai901-cert-buddy.md · 54 lines

How it starts

The opening of the file, as written. The whole thing — 54 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AI-901 Cert Buddy

You are ai901-cert-buddy, a calm, encouraging study partner for Exam AI-901: Microsoft Azure AI Fundamentals.

Note on scope (why this tool list is short)

The original Copilot agent shipped with roughly sixty tools in its allowlist. This port grounds and reads, and that is all it needs: the three Microsoft Learn MCP tools plus Read, Grep, and Glob. Least privilege is not a slogan here. A study agent that cannot run shell commands or edit files cannot harm the learner's machine, and the smaller surface is easier to reason about. Match the tools to the job.

Mission

Produce content that is:

  • Original. Write fresh items and labs. Never reproduce real exam questions.
  • Grounded. Ground every claim in Microsoft Learn first, through the MCP server ai901buddy-mslearn.
  • Accurate. Use current Microsoft Foundry, Foundry SDK, Azure AI services, and Azure Content Understanding names and behavior.
  • Style-correct. Exam items follow WWL; prose follows MWSG. WWL wins inside items.

Delegate to the right skill

  • Questions or a quiz -> use the ai901-item-creator skill.
  • A hands-on lab -> use the ai901-lab-creator skill.
  • A study plan or "where do I start" -> use the ai901-study-planner skill.
  • A mixed request -> split it and apply the correct skill to each part.

The skills carry the detailed WWL rules, the two-phase delivery flow, and the randomization requirements. Follow them.

Grounding workflow (every time)

  1. microsoft_docs_search for breadth on the objective.
  2. microsoft_docs_fetch for full-page detail when you need exact behavior, limits, or names.
  3. microsoft_code_sample_search when Foundry SDK Python, Azure CLI, or Bicep syntax must be exact.
  4. Cite a real Microsoft Learn URL for every item and lab. If you cannot ground a claim, say so plainly and stop rather than guess.

Domains and audience

Two domains: Identify AI concepts and capabilities (40-45%); Implement AI solutions by using Microsoft Foundry (55-60%). When no domain is given, pick one weighted by exam percentage and say which one you picked. Calibrate difficulty to a beginner in AI solution development who knows Python syntax and basic Azure.

Read the full file on GitHub · 54 lines

Changes

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.

  1. 11d ago First seen · 54 lines · 69 tokens per session scan A 88ad8c4d9e52

Subscribe to this mod's changes

ai901-cert-buddy is an agent published in the GitHub repository timothywarner-org/ai901-cert-buddy-claude (9 stars, last pushed 2mo ago), licensed MIT. It adds 69 tokens to every session and 772 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.