---
title: "Reverse Documentation - Air Market"
description: "You built the thing first and the design document never happened. This works backwards from the code or prototype you already have and writes the design or architecture document that should have come…"
canonical: "https://airmarket.ai/app/reverse-document"
---

[Air Market](/) / [Writing](/category/writing) / Reverse Documentation

Skill by [Donchitos](/@donchitos)

# Reverse Documentation

The design doc you never wrote, written from the code you shipped

## What this does

You built the thing first and the design document never happened. This works backwards from the code or prototype you already have and writes the design or architecture document that should have come first. Useful when someone asks for docs on work that is already done.

### Top 3 things it does for you

- Write the design doc for something already built
- Document the architecture of a working prototype
- Fill in planning docs that were skipped

## Information

**Reverse Documentation at a glance**

|  |  |
| --- | --- |
| Kind | Skill |
| Publisher | [Donchitos](/@donchitos) |
| Category | [Writing](/category/writing) |
| Works with | Agent Skills - an open standard supported by 40+ agents |
| Size | 9 KB |
| Licence | MIT |
| Repository | [Donchitos/Claude-Code-Game-Studios](https://github.com/Donchitos/Claude-Code-Game-Studios/tree/984023ddac0d5e27624f2baacde6105e45de375f/.claude/skills/reverse-document) |
| GitHub stars | 24,494 (as of Nov 2026) |

## Security report

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

**What Reverse Documentation's check was run against**

|  |  |
| --- | --- |
| Commit | 984023ddac0d5e27624f2baacde6105e45de375f |
| Content hash | 4db5d5d69414aeb515cb7ace64a429d845b7d7a4e99e87ec9494d667492dd439 |
| Files read | [Browse the files at this exact commit](https://github.com/Donchitos/Claude-Code-Game-Studios/blob/984023ddac0d5e27624f2baacde6105e45de375f/.claude/skills/reverse-document/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 Reverse Documentation](/security/reverse-document)

## About Reverse Documentation

This generates design or architecture documents from an existing implementation.

Rather than starting from a plan, it works backwards from the code or prototype to produce the planning docs that were never written.

## What's inside

- SKILL.md - instructions

## Questions

### Is Reverse Documentation safe to install?

AIR scanned this exact version of Reverse Documentation and flagged nothing. AIR's verdict: safe. The verdict is named by the content that was read, at commit 984023ddac0d, so it cannot drift onto a version nobody scanned. The full report is at https://airmarket.ai/security/reverse-document.

### How do I install Reverse Documentation?

Open https://airmarket.ai/app/reverse-document 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/Donchitos/Claude-Code-Game-Studios/tree/984023ddac0d5e27624f2baacde6105e45de375f/.claude/skills/reverse-document. Install from that link, not the branch.

## Related on Air Market

- [More Writing listings](/category/writing)
- [Everything by Donchitos](/@donchitos)

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Canonical URL: <https://airmarket.ai/app/reverse-document>