fable-validate-loop SKILL.md skillA
fable-validate-loop 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-loop@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-loop/SKILL.md- Versions recorded
- 16
- Latest version
- git:20261006.61bf5e6, committed Oct 6, 2026
- First version recorded
- Sep 1, 2026
- Size
- 9,765 bytes
- Repository stars
- 50
- License
- MIT
Use when the user asks to validate a GitHub issue with Fable 5.1 and then autonomously drive it to a reviewed PR in one shot — "fable-validate-loop", "fable validate and work on #N", "fully automate issue #N with fable". Runs fable-validate, auto-applies its update-issue edits when the verdict calls for it, has fableplan produce and post a Fable 5.1 implementation plan (skipped only when the verdict's title-floored signal reads `plan: no`, which means the title score and the recomputed score…
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-loop
Chain fable-validate → (conditional) update issue → (conditional) fableplan → work-on-issue-loop into one unattended run. Parse each skill's output and proceed where the interactive skill would wait for the user, except at the STOP rows below.
**Do not skip or reorder the chain.** Validation gates planning, and the plan gates implementation. The only sanctioned skip is the step-4 score gate. Every other step of each skill still runs.
## Input
Same as fable-validate: issue URL, `#<N>` / `<N>` / `owner/repo#N`, or nothing (the issue named, validated, planned, or filed in this session; with none, stop and ask). Never pick an issue from a list.
Optional `targetBranch` (`{ issue, targetBranch }` or a prose "target branch <name>") passes unchanged to every validate, plan, and build step; `work-on-issue` step 1 ("Target") owns its validation.
## Steps
### 1. Run fable-validate
Invoke `fable-validate` (Skill tool) for the issue and let it run fully. It emits the standard verdict block:
```
…Read the whole file at its exact version.
How to install
mdr add richkuo/rk-skills/fable-validate-loop@sha256:1a6d15707e72c5f3The 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_lntwq5a4yfp7tkam)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 16 versions of this file, between Sep 1, 2026 and Oct 6, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.61bf5e6 latest | 2026-10-06 | 61bf5e6 | 9,765 B | A | view · diff |
| git:20261006.4c6da76 | 2026-10-06 | 4c6da76 | 9,347 B | A | view · diff |
| git:20261005.e9b5f92 | 2026-10-05 | e9b5f92 | 9,434 B | A | view · diff |
| git:20261004.47b4d96 | 2026-10-04 | 47b4d96 | 9,420 B | A | view · diff |
| git:20261002.6c4566e | 2026-10-02 | 6c4566e | 9,435 B | A | view · diff |
| git:20261002.51ca084 | 2026-10-02 | 51ca084 | 9,517 B | A | view · diff |
| git:20260929.abe62fe | 2026-09-29 | abe62fe | 9,570 B | A | view · diff |
| git:20260929.665e60a | 2026-09-29 | 665e60a | 10,318 B | A | view · diff |
| git:20260929.9fe3692 | 2026-09-29 | 9fe3692 | 10,313 B | A | view · diff |
| git:20260928.2014375 | 2026-09-28 | 2014375 | 10,315 B | A | view · diff |
| git:20260927.55c2280 | 2026-09-27 | 55c2280 | 6,816 B | A | view · diff |
| git:20260923.66d4f63 | 2026-09-23 | 66d4f63 | 6,734 B | A | view · diff |
| git:20260905.9143be2 | 2026-09-05 | 9143be2 | 6,567 B | A | view · diff |
| git:20260903.6fdbab1 | 2026-09-03 | 6fdbab1 | 9,439 B | A | view · diff |
| git:20260903.9f8defc | 2026-09-03 | 9f8defc | 8,787 B | A | view · diff |
| git:20260901.6c08e4b | 2026-09-01 | 6c08e4b | 8,477 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 (9765 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_lntwq5a4yfp7tkam GET https://markdownregistry.com/api/v1/resolve?ref=richkuo/rk-skills/fable-validate-loop GET https://markdownregistry.com/api/v1/blob/1a6d15707e72c5f3f20de45cc0af48c9953d9829b6ffc50b3ca465b437f64743
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.