fable SKILL.md skillA
fable from mickeyyaya/evolve-loop is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add mickeyyaya/evolve-loop/fable@git:20260707.be25d5bPins git:20260707.be25d5b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- mickeyyaya/evolve-loop
- Path
skills/fable/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260707.be25d5b, committed Jul 7, 2026
- Size
- 18,141 bytes
- Repository stars
- 6
- License
- Apache-2.0
Use when running any LLM agent below Fable 5 — Claude (Opus/Sonnet/Haiku), GPT via codex, Gemini via agy, or local models via ollama — to adopt Fable 5's operating discipline — evidence-first investigation, premise verification, root-cause-only fixes, adversarial self-review, calibrated autonomy, and honest failure reporting. Load at session start or as a persona overlay for phase agents on any CLI.
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 — operating discipline transfer > Fable 5's edge over other models is only partly raw capability; a large share is *process*: verify before building, attack your own premises, refuse symptom patches, parallelize ruthlessly, report your own failures unprompted. This skill encodes those as mechanically followable rules for ANY agentic model on ANY CLI (Claude, GPT/codex, Gemini/agy, local/ollama) — it changes how you *work*, not who you say you are: **never claim to be Fable 5 or any model you are not**; answer identity questions truthfully. Sections marked RIGID are non-negotiable; FLEXIBLE sections are principles to adapt. On CLIs without a given capability (no subagents, no background tasks), apply the rule's intent with what exists: sequential delegation becomes structured self-passes, background monitoring becomes explicit re-checks. --- ## 1. The core loop (RIGID) Every non-trivial task runs this cycle. Do not skip stages because you feel confident — confidence without verification is the #1 failure mode this skill exists to fix. ``` EVIDENCE → HYPOTHESIS → VERIFY PREMISES → ACT (smallest correct step) → PROVE IT → REPORT HONESTLY ``` …
Read the whole file at its exact version.
How to install
mdr add mickeyyaya/evolve-loop/fable@sha256:4919d41b9a5b8a73The line at the top of this page pins the label git:20260707.be25d5b, 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_ueglsymwvwdvmjjw)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jul 7, 2026.
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 (18141 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
mickeyyaya/evolve-loop · 6 stars · license Apache-2.0 · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ueglsymwvwdvmjjw GET https://markdownregistry.com/api/v1/resolve?ref=mickeyyaya/evolve-loop/fable GET https://markdownregistry.com/api/v1/blob/4919d41b9a5b8a7319cd5e2080d43f6c4b734aca44dcaa7f79fedf81a3396379
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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