fable-dispatch skillA
fable-dispatch is agent-read markdown (skill) from richkuo/rk-skills: Required dispatch procedure for running a subagent on Fable 5.1: positive harness detection, the Claude Code CLI shim for other harnesses, the fallback ladder, the result-parsing contract, the attribution rule, and the caller dispatch-hygiene rules (read-only prompt, snapshot/diff, retry). Load BEFORE dispatching any `model: fable` subagent..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Fable dispatch How every fable skill reaches Fable 5.1 on the current harness. The calling skill owns the prompt, the subagent type, and what happens with the result. This skill owns the path to Fable 5.1. A downgrade to another model is the ladder's last step, and it is always reported. ## 1. Detect the harness Run one Bash check before dispatching: ```sh [ -n "$CLAUDECODE" ] && echo claude-code || echo other ``` Claude Code sets `CLAUDECODE=1`. Every other result means "not Claude Code". Do not probe for Cursor or Codex variables (their names are unverified), and never infer the harness from an Agent-call error: a harness that maps `fable` to another model raises no error. That silent substitution is the defect this ladder closes. ## 2. The fallback ladder 1. **Claude Code** (`$CLAUDECODE` set): the Agent tool with `model: fable`, as the calling skill's dispatch step describes. 2. **Other harness, and `command -v claude` succeeds**: the CLI shim (section 3). The work still runs on Fable 5.1 at the intended effort. …
Read the whole file at its exact version.
How to install
mdr add richkuo/rk-skills/fable-dispatch@git:20260924.1f0b4famdr add richkuo/rk-skills/fable-dispatch@sha256:905a43ea30eb1a21Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_dzqgguu7hs2i4ytk)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.1f0b4fa latest | 2026-09-24 | 1f0b4fa | 6,476 B | A | view · diff |
| git:20260905.cd7c29b | 2026-09-05 | cd7c29b | 6,531 B | A | view · diff |
| git:20260901.6ef410f | 2026-09-01 | 6ef410f | 6,556 B | A | view · diff |
| git:20260901.6c08e4b | 2026-09-01 | 6c08e4b | 7,687 B | A | view · diff |
| git:20260817.0fe4f56 | 2026-08-17 | 0fe4f56 | 7,673 B | A | view · diff |
| git:20260814.b683395 | 2026-08-14 | b683395 | 6,602 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 (6476 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 · 49 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dzqgguu7hs2i4ytk GET https://markdownregistry.com/api/v1/resolve?ref=richkuo/rk-skills/fable-dispatch GET https://markdownregistry.com/api/v1/blob/905a43ea30eb1a218df35b729f972499087e75f3e2ced174e009edbb5304144b
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