Gap Check logo

Gap Check

Organization
microsoft
gap-check

Validates the evidence register against clause requirements and flags gaps with severity - the explicit Govern step and the core work of this plugin, via the deterministic gap_check engine. Use when the user says "are we ready for the audit", "check for gaps", "will we pass", or after evidence-gather in a readiness run.

Overview

Publishermicrosoft
Repositorycat-agent-skills
Skill namegap-check
Stars
95
Forks
115
Bundled files
4
LicenseMIT
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • 4 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by microsoft on GitHub. Read the source before you install it.

Installation

Install the Gap Check AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/microsoft/cat-agent-skills/tree/main/submissions/audit-readiness/skills/gap-check
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/microsoft/cat-agent-skills.git /tmp/cat-agent-skills
mkdir -p .claude/skills
cp -r /tmp/cat-agent-skills/submissions/audit-readiness/skills/gap-check .claude/skills/gap-check
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Gap Check in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Gap Check on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Gap Check is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Gap Check (Govern)

Purpose

Deterministic conformity check: recency (#1), coverage (#2), severity (#3), readiness verdict (#4). Compliance determination IS the work here.

When to use

After evidence-gather in every run; on any "are we ready" question.

Inputs

mapped.json + evidence.json.

Steps

  1. Validate against the contract.
  2. Run scripts/gap_check.py --mapped mapped.json --evidence evidence.json --out gaps.json
  3. Quote statuses and the verdict verbatim. A 13-month-old management review is STALE however complete the folder looks - a full folder is not a current folder (#1.1).

Output

gaps.json - the {gaps, readiness} hop.

Grounding requirements

Every gap cites its clause-table row and rule section.

Constraints

  • Verdicts are engine-only; the model never rounds not_ready up to "should be fine".
  • Gaps close by producing evidence, never by rewording (#5).

Escalation / uncertainty

Major gaps escalate to the quality director with owner + action attached.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Gap Check AI skill do?

Validates the evidence register against clause requirements and flags gaps with severity - the explicit Govern step and the core work of this plugin, via the deterministic gap_check engine. Use when the user says "are we ready for the audit", "check for gaps", "will we pass", or after evidence-gather in a readiness run.

Why use Gap Check on TypingMind?

Because you install it once and use it with any model. Gap Check is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Gap Check in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/microsoft/cat-agent-skills/tree/main/submissions/audit-readiness/skills/gap-check. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Gap Check?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Gap Check?

As many as you like. As long as a model supports skills, you can use Gap Check with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Gap Check AI skill free?

Yes. It is published on GitHub by microsoft under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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