canon-check SKILL.md skillA

canon-check from mikefluff/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mikefluff/skills/canon-check@git:20260803.e8ff76f

Pins git:20260803.e8ff76f in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mikefluff/skills
Path
skills/canon-check/SKILL.md
Versions recorded
1
Latest version
git:20260803.e8ff76f, committed Aug 3, 2026
Size
9,306 bytes
Repository stars
25
License
MIT

Read-only story-bible auditor for fiction series with a documented canon. Cross-references character / artifact / location mentions in chapters against the bible and flags drift. Produces a drift report — never edits files. Use before opening or committing a chapter, or when reintroducing an established entity.

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

<objective>
Read-only story-bible auditor for any book series that maintains a written canon. Before any insertion, rewrite, or commit — cross-references mentions of characters / artifacts / locations in the current text against the project's recorded canon. Flags drift. Does not edit the chapter or the bible.

**Why this skill exists.** The same canon-break patterns recur across long-form fiction projects: a character's documented physical invariant gets accidentally inverted in a later chapter; an artifact moves room without explanation; a recurring character appears under a generic descriptor when an established proper name already exists; a count or age stated in the bible doesn't match what the text actually shows. Each break is cheap to catch at lint time and expensive to catch in print.

Use cases:
- before opening a new chapter — confirm the names / artifacts / locations you're about to establish don't duplicate something already established;
- before `git commit` — staged diff vs canon;
- when mentioning a known character in a new scene — gather all their prior appearances + their bible entry;
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mikefluff/skills/canon-check@sha256:c91130328697d60f

The line at the top of this page pins the label git:20260803.e8ff76f, 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_z37gphzy6lpbtscz.svg)](https://markdownregistry.com/a/art_z37gphzy6lpbtscz)

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

Versions

The registry has recorded 1 version of this file, committed on Aug 3, 2026.

versioncommittedcommitsizeaudit
git:20260803.e8ff76f latest2026-08-03 e8ff76f 9,306 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 (9306 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

mikefluff/skills · 25 stars · license MIT · pushed 2026-10-16 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_z37gphzy6lpbtscz
GET https://markdownregistry.com/api/v1/resolve?ref=mikefluff/skills/canon-check
GET https://markdownregistry.com/api/v1/blob/c91130328697d60f9467a00a9350ca08b755271be9cb684d1320ff8d30e5cf3a

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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