fable-validate SKILL.md skillA
fable-validate from richkuo/rk-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add richkuo/rk-skills/fable-validate@git:20261006.61bf5e6Pins git:20261006.61bf5e6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- richkuo/rk-skills
- Path
skills/fable-validate/SKILL.md- Versions recorded
- 11
- Latest version
- git:20261006.61bf5e6, committed Oct 6, 2026
- First version recorded
- Jul 5, 2026
- Size
- 8,563 bytes
- Repository stars
- 50
- License
- MIT
Use when the user wants a GitHub issue validated by a Fable 5.1 subagent. Spins up a read-only subagent running on Fable 5.1 that executes the validate-issue procedure (claim tracing, architecture/consistency checks, complexity score), then relays the verdict back to the main agent, which presents it and takes any follow-on action (update issue, work on issue). Trigger on "/fable-validate", "fable validate <issue>", or "validate this with fable".
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
# fable-validate Delegate issue validation to a **Fable 5.1** subagent, then act on its verdict in the main agent. The subagent only validates — it never edits files or the issue; the main agent handles all follow-on actions. ## Input Same as `validate-issue`: - Full URL: `https://github.com/<owner>/<repo>/issues/<N>` - Short form: `#<N>` or bare `<N>` (current repo) - `owner/repo#N` - **Nothing** — the issue named, validated, planned, or filed in this session, per validate-issue's input rule; with none, stop and ask. Never pick an issue from a list. ## Steps ### 1. Resolve the validation procedure and the issue Locate the `validate-issue` SKILL.md the subagent must follow, using the first that resolves in this order: 1. `<repo>/.claude/skills/validate-issue/SKILL.md` (if it exists) 2. `~/.claude/skills/validate-issue/SKILL.md` 3. Any other install location — search by name, e.g. `ls ~/.claude/plugins/*/skills/validate-issue/SKILL.md`. Record the absolute path. If none of these resolves, stop and tell the user. …
Read the whole file at its exact version.
How to install
mdr add richkuo/rk-skills/fable-validate@sha256:ea60f0c602f6a594The line at the top of this page pins the label git:20261006.61bf5e6, 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.
[](https://markdownregistry.com/a/art_rp6kwr7i65m7g345)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 11 versions of this file, between Jul 5, 2026 and Oct 6, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.61bf5e6 latest | 2026-10-06 | 61bf5e6 | 8,563 B | A | view · diff |
| git:20261006.4c6da76 | 2026-10-06 | 4c6da76 | 8,125 B | A | view · diff |
| git:20261004.47b4d96 | 2026-10-04 | 47b4d96 | 8,599 B | A | view · diff |
| git:20260929.9fe3692 | 2026-09-29 | 9fe3692 | 8,528 B | A | view · diff |
| git:20260928.2014375 | 2026-09-28 | 2014375 | 6,882 B | A | view · diff |
| git:20260927.55c2280 | 2026-09-27 | 55c2280 | 6,479 B | A | view · diff |
| git:20260901.6c08e4b | 2026-09-01 | 6c08e4b | 6,076 B | A | view · diff |
| git:20260817.0fe4f56 | 2026-08-17 | 0fe4f56 | 6,056 B | A | view · diff |
| git:20260814.b683395 | 2026-08-14 | b683395 | 6,794 B | A | view · diff |
| git:20260814.d61720d | 2026-08-14 | d61720d | 6,449 B | A | view · diff |
| git:20260705.5e5b326 | 2026-07-05 | 5e5b326 | 6,389 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8563 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
richkuo/rk-skills · 50 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_rp6kwr7i65m7g345 GET https://markdownregistry.com/api/v1/resolve?ref=richkuo/rk-skills/fable-validate GET https://markdownregistry.com/api/v1/blob/ea60f0c602f6a594d3da085ee2b7158ccfa10c228ec7d440a7c75b9174522f7a
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.