What is fable-method?

A four-part workflow for coding agents: think through the task, act on it, check the result with evidence, and improve the method for a specific area.

Use it to structure coding tasks, test whether an agent's work is correct, and adapt the workflow to a particular technical domain.

It gives an agent a repeatable way to work instead of relying on free-form guesses. Its included evaluations and recorded failures help show where the workflow succeeds or falls short.

fable-method — Plugin by Sahir619

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code

/plugin marketplace add Sahir619/fable-method

agentmods

npx agentmods add plugins/sahir619/fable-method/fable-method

Clone the repo

git clone --depth 1 https://github.com/Sahir619/fable-method

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

fable-method scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/plugin.json · 12 lines

What it actually says

{
  "name": "fable",
  "description": "The Fable Workflow: how Claude Fable 5 worked, distilled into four skills any model can run. Think (fable-method), act (fable-loop), prove (fable-judge), grow (fable-domain). Evidence-backed: ships its own eval, failures included.",
  "version": "1.4.0",
  "author": {
    "name": "Sahir619"
  },
  "homepage": "https://github.com/Sahir619/fable-method",
  "repository": "https://github.com/Sahir619/fable-method",
  "license": "MIT"
}

Files

What ships with it

1 file beside plugin.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

marketplace.json 707 B

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 12 lines scan A e3c2256ea1f4

Subscribe to this mod's changes

fable-method is a plugin published in the GitHub repository Sahir619/fable-method (2,267 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Data and AI Planning Testing agent-skills ai-agents claude claude-code claude-md coding-agent

fable-method

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What ships with it

What this file has done since we first saw it

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