---
title: "Policy Diff - Air Market"
description: "A regulation changed and you do not know which of your policies now falls short. This compares that specific change against your indexed policy library and tells you which policies it touches and whe…"
canonical: "https://airmarket.ai/app/policy-diff"
---

[Air Market](/) / [Legal](/category/legal) / Policy Diff

Skill by [Anthropic](/@anthropics)

# Policy Diff

A rule just changed - see which of your policies it hits

## What this does

A regulation changed and you do not know which of your policies now falls short. This compares that specific change against your indexed policy library and tells you which policies it touches and where the gap is. Reach for it the moment a reg change lands on your desk.

### Top 3 things it does for you

- Find which policies a regulatory change touches
- Run a gap analysis against a specific reg change
- Work out what a new rule means for what we've written

## Information

**Policy Diff at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Anthropic](/@anthropics) |
| Category | [Legal](/category/legal) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 12 KB |
| Licence | Apache-2.0 |
| Repository | [anthropics/claude-for-legal](https://github.com/anthropics/claude-for-legal/tree/4d55f53962293ab0ec0dcfad84c51afb54535975/regulatory-legal/skills/policy-diff) |
| GitHub stars | 9,242 (as of Nov 2026) |
| Installs | 623, counted by skills.sh (Nov 2026) |

## Security report

**Verified.** AIR scanned this exact version of Policy Diff and flagged nothing. AIR's verdict: **safe**.

**What Policy Diff's check was run against**

|  |  |
| --- | --- |
| Commit | 4d55f53962293ab0ec0dcfad84c51afb54535975 |
| Content hash | 241f963b0527e3e9562bb3dd21857c4c67be30699dd9a9c8c69946e85405a8f6 |
| Files read | [Browse the files at this exact commit](https://github.com/anthropics/claude-for-legal/blob/4d55f53962293ab0ec0dcfad84c51afb54535975/regulatory-legal/skills/policy-diff/SKILL.md) |

A scan is named by the exact content it read, not by a version number. A different version is a different artifact, and nothing here applies to a version AIR has not scanned.

[Read the full security report for Policy Diff](/security/policy-diff)

## About Policy Diff

This diffs a specific regulatory change against your indexed policy library. The output is which policies the change touches and what the gap is.

Use it when a reg has changed and you need to know what it means for what you have already written - a gap analysis on a named change, rather than a general review. It also picks up material items handed off by a reg feed watcher.

## What's inside

- SKILL.md - instructions

## Questions

### Is Policy Diff safe to install?

AIR scanned this exact version of Policy Diff and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 4d55f5396229, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/policy-diff.

### How do I install Policy Diff?

Open https://airmarket.ai/app/policy-diff on Air Market and use the install action: Air Market hands Claude a prompt naming this exact skill, and Claude sets it up. Source, pinned to the exact commit this listing describes: https://github.com/anthropics/claude-for-legal/tree/4d55f53962293ab0ec0dcfad84c51afb54535975/regulatory-legal/skills/policy-diff. Install from that link, not the branch.

## Related on Air Market

- [More Legal listings](/category/legal)
- [Everything by Anthropic](/@anthropics)

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Canonical URL: <https://airmarket.ai/app/policy-diff>