fix-bug SKILL.md skillA

fix-bug from nowsprinting/unity-coding-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add nowsprinting/unity-coding-skills/fix-bug@git:20261016.1a93bbe

Pins git:20261016.1a93bbe in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
nowsprinting/unity-coding-skills
Path
skills/fix-bug/SKILL.md
Versions recorded
10
Latest version
git:20261016.1a93bbe, committed Oct 16, 2026
First version recorded
Jul 14, 2026
Size
10,458 bytes
Repository stars
20
License
Unlicense

Diagnoses and fixes bugs using a test-first workflow (reproduce, diagnose, fix). Use this skill whenever the user reports a bug, describes unexpected behavior, or asks to investigate or fix a defect. Even if the user says "something's broken", "this isn't working", "fix this bug", or "why does X happen", load this skill to guide the full reproduce → diagnose → fix cycle.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

Guide for diagnosing and fixing bugs. This skill defines a test-first debugging workflow:
reproduce the bug with a failing test, diagnose the root cause, then fix it.

## Mode Check

This skill must be used **outside plan mode**. Before doing anything else, check the current mode:

- `ExitPlanMode` is NOT in the deferred tools list (i.e., directly callable) → **in plan mode** → stop immediately and tell the user:
  > "This skill (`/fix-bug`) must be used outside plan mode. Please exit plan mode first."
- `ExitPlanMode` is in the deferred tools list → not in plan mode → proceed.

## Workflow

**Recording implementation notes:** Notes for this run go in `<scratchpad>/implementation-notes.md`, where `<scratchpad>` is the scratchpad directory listed in your system prompt (write its absolute path literally). Immediately before your **first** append in this run — and only then — delete that file if it exists (usually it will not), so this run starts from an empty one: every `/fix-bug`, `/refine-tests`, and plan-file run in the session shares this file, so an earlier run abandoned before its Implementation Notes step would otherwise leak its notes into this one. Never delete it again…
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nowsprinting/unity-coding-skills/fix-bug@sha256:37287d8ad53b5c99

The line at the top of this page pins the label git:20261016.1a93bbe, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_r3ocladfjbyywgqz.svg)](https://markdownregistry.com/a/art_r3ocladfjbyywgqz)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 10 versions of this file, between Jul 14, 2026 and Oct 16, 2026, about one every 10 days.

versioncommittedcommitsizeaudit
git:20261016.1a93bbe latest2026-10-16 1a93bbe 10,458 BA view · diff
git:20261016.41096652026-10-16 4109665 10,554 BA view · diff
git:20261016.e2b1e302026-10-16 e2b1e30 10,400 BA view · diff
git:20260913.74d00e22026-09-13 74d00e2 10,283 BA view · diff
git:20260913.e56a18b2026-09-13 e56a18b 10,178 BA view · diff
git:20260813.59a13612026-08-13 59a1361 10,295 BA view · diff
git:20260726.13c56c32026-07-26 13c56c3 10,365 BA view · diff
git:20260726.81288222026-07-26 8128822 10,327 BA view · diff
git:20260726.0ab8a6f2026-07-26 0ab8a6f 7,621 BA view · diff
git:20260714.07249782026-07-14 0724978 8,083 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10458 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

nowsprinting/unity-coding-skills · 20 stars · license Unlicense · pushed 2026-10-30 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_r3ocladfjbyywgqz
GET https://markdownregistry.com/api/v1/resolve?ref=nowsprinting/unity-coding-skills/fix-bug
GET https://markdownregistry.com/api/v1/blob/37287d8ad53b5c99cee1f7d5c2da5379cec7a65c607535dd5a4f7dceb0fcc3fa

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in nowsprinting/unity-coding-skills

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