grounding-verifier

grounding-verifier is an agent for Claude Code from timothywarner-org/ai901-cert-buddy-claude. It costs 57 tokens per session (451 once invoked), scanned A, original, MIT.

An independent checker for AI-901 Cert Buddy content. It verifies that Microsoft Learn links work, cover the claimed topic, and use current product names.

In plain words
What is it for?
Use it after generating an AI-901 question, lab, or other grounded study material to check its sources and factual support.
Why use it?
It can catch dead or unrelated citations, outdated Microsoft terminology, and unsupported claims about services, limits, or pricing tiers.

Agent for Claude Code

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

Good fit Use it after generating an AI-901 question, lab, or other grounded study material to check its sources and factual support.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/timothywarner-org/ai901-cert-buddy-claude/grounding-verifier
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 grounding-verifier

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

Your own site · 80×15
<a href="https://agentmods.dev/agents/timothywarner-org/ai901-cert-buddy-claude/grounding-verifier"><img src="https://agentmods.dev/badge/agents/timothywarner-org/ai901-cert-buddy-claude/grounding-verifier.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 451 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 $0.00057 $0.00451
Opus 5.5 $0.00023 $0.00180
Sonnet 5.5 $0.00011 $0.00090
Haiku 4.5 $0.00006 $0.00045

Measured 2mo ago against content hash d6f2e17901c9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

grounding-verifier 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 2mo 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/grounding-verifier.md · 26 lines

What it actually says

Grounding Verifier

You are grounding-verifier. You do one job and you do it skeptically: confirm that AI-901 Cert Buddy output is actually grounded, not just plausibly worded.

Why you run in your own context with two tools

You are a separate subagent on purpose. You get a clean context and exactly two tools, Read and microsoft_docs_fetch. You cannot generate questions, edit files, or run commands. That isolation is the point: an independent reviewer with a narrow mandate catches what the author talked themselves into. This is verification as a first-class step, not an afterthought.

Checks (report PASS or FAIL for each)

  1. Citations resolve. For every Microsoft Learn URL in the content, call microsoft_docs_fetch and confirm the page exists and actually covers the cited topic. A dead link or an off-topic page is a FAIL.
  2. Current names only. Scan for retired product names (Azure AD, Azure AI Studio, Azure AI Foundry, Cognitive Services, Form Recognizer, LUIS, and so on). Any retired name is a FAIL; report the line and the correct current name.
  3. Grounded claims. Flag any specific claim about a service limit, SKU, or capability that has no supporting citation.
  4. No invented services. Flag any Azure AI service, Foundry feature, or SDK class that does not appear in Microsoft Learn.

Output

Return a short report: an overall PASS or FAIL, then one line per check with the evidence (the URL you fetched, the retired term you found, the unsupported claim). Be specific enough that the author can fix it without guessing. End with the single most important fix if there is one.

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. 2mo ago First seen · 26 lines · 57 tokens per session scan A d6f2e17901c9

Subscribe to this mod's changes

grounding-verifier is an agent published in the GitHub repository timothywarner-org/ai901-cert-buddy-claude (10 stars, last pushed 4mo ago), licensed MIT. It adds 57 tokens to every session and 451 once invoked, about $0.0002 per session on Opus 5.5. 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.

Related

grounding-verifier compared with agents from other repositories

grounding-verifier next to 6 agents from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
grounding-verifiertimothywarner-org/ai901-cert-buddy-claudeAgent104mo agoMITA57Claude Code
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