gha-failure-taxonomy SKILL.md skillA

gha-failure-taxonomy from sigistry/marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sigistry/marketplace/gha-failure-taxonomy@git:20260826.571bc2f

Pins git:20260826.571bc2f in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sigistry/marketplace
Path
plugins/ci-incident-medic/skills/gha-failure-taxonomy/SKILL.md
Versions recorded
3
Latest version
git:20260826.571bc2f, committed Aug 26, 2026
First version recorded
Jul 8, 2026
Size
3,464 bytes
Repository stars
3
License
MIT

This skill should be used when the user mentions "github actions failing", "CI failure", "workflow failed", "actions permission denied", "secret not found", "matrix", "cache miss", "GITHUB_TOKEN", "pipeline red", or is diagnosing a red GitHub Actions run. It provides a taxonomy of failure classes with log signals, root causes, and exact YAML fixes.

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

# GitHub Actions Failure Taxonomy

## Purpose
A consistent way to classify a failing (or non-running) GitHub Actions workflow into one root-cause class, so triage goes straight from a log line to the exact YAML fix instead of trial-and-error re-runs. This is domain knowledge about how Actions actually breaks, not generic YAML advice.

## First split: did it FAIL or never RUN?
- **Never ran** (no run appears, or the job count is 0): almost always the `on:` trigger, `paths`/`paths-ignore`, `branches`/`tags` filter, or a `matrix` that expanded to nothing. Do not look for a step error.
- **Ran and failed**: anchor on the platform's error string, then classify below.

## Classification matrix

| Class | Fastest log signal | Root cause | Fix direction |
|-------|--------------------|-----------|---------------|
| Permissions / token scope | `Resource not accessible by integration`, HTTP 403 | `GITHUB_TOKEN` lacks a scope | add least-privilege `permissions:` |
| Missing / misnamed secret | `secret ... not found`, empty var, auth 401 | secret undefined, wrong name, or wrong scope (repo vs env) | define/rename secret; check environment |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sigistry/marketplace/gha-failure-taxonomy@sha256:f7098665d57109e7

The line at the top of this page pins the label git:20260826.571bc2f, 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_yo65lbh6gbovsgp6.svg)](https://markdownregistry.com/a/art_yo65lbh6gbovsgp6)

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

Versions

The registry has recorded 3 versions of this file, between Jul 8, 2026 and Aug 26, 2026, about one every 24 days.

versioncommittedcommitsizeaudit
git:20260826.571bc2f latest2026-08-26 571bc2f 3,464 BA view · diff
git:20260715.fcd87142026-07-15 fcd8714 3,475 BA view · diff
git:20260708.c0884a92026-07-08 c0884a9 3,487 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 (3464 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

sigistry/marketplace · 3 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yo65lbh6gbovsgp6
GET https://markdownregistry.com/api/v1/resolve?ref=sigistry/marketplace/gha-failure-taxonomy
GET https://markdownregistry.com/api/v1/blob/f7098665d57109e7b7c6675a5652cd1933b8c6e49555eb5b20f34f3a766282d8

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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