ccc-fable

ccc-fable is a skill for Claude Code from KevinZai/commander. It costs 61 tokens per session (3,050 once invoked), scanned A, original, MIT.

A session-wide set of working rules for managing coding tasks, checking results, and keeping work within scope.

In plain words
What is it for?
Use it to arm, inspect, audit, or disable the Fable Method, including its project-management loop and 12 verification gates.
Why use it?
It provides a consistent process for planning, verification, review, and identifying risks during a coding session.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; mentions subagents.

Good fit Use it to arm, inspect, audit, or disable the Fable Method, including its project-management loop and 12 verification gates.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kevinzai/commander/ccc-fable
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.

Any agent
npx skills add KevinZai/commander --skill ccc-fable
Clone the repo
git clone --depth 1 https://github.com/KevinZai/commander

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ccc-fable

README.md
[![agentmods](https://agentmods.dev/badge/skills/kevinzai/commander/ccc-fable/github.svg)](https://agentmods.dev/skills/kevinzai/commander/ccc-fable)
Your own site
<a href="https://agentmods.dev/skills/kevinzai/commander/ccc-fable"><img src="https://agentmods.dev/badge/skills/kevinzai/commander/ccc-fable/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ccc-fable

Your own site · 80×15
<a href="https://agentmods.dev/skills/kevinzai/commander/ccc-fable"><img src="https://agentmods.dev/badge/skills/kevinzai/commander/ccc-fable.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,050 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00061 $0.03050
Opus 5.5 $0.00024 $0.01220
Sonnet 5.5 $0.00012 $0.00610
Haiku 4.5 $0.00006 $0.00305

Measured 8d ago against content hash 0767f90913ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ccc-fable 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 8d ago.

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.

commander/cowork-plugin-codex/skills/ccc-fable/SKILL.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

$ccc-fable — arm the Fable Method

CC Commander · $ccc-fable · a session-wide operating contract of checkable gates, so any model produces verified, orchestrated work.

The full doctrine (12 pillars, each with rule, mechanics, gate and failure prevented) lives in rules/fable-method.md. This skill arms it, records the armed state, reports it, and audits the session against it. The user's selected model is preserved; arming changes posture, not model.

When to use / when not to

  • Use to arm the contract before substantive work (multi-file changes, audits, migrations, research), to check whether it is armed, or to self-audit a session for gate violations.
  • Use audit before reporting a load-bearing "done" in a long session.
  • Do not use it to run a build, review or plan. It governs how those run; $ccc-orchestrate, $ccc-review and $ccc-plan do the work.

What happens

1. Route the argument

$ARGUMENTS selects the action. With no argument, ask with AskUserQuestion (Codex: ask the same question in plain text):

question: "Fable Method — what do you want to do?"
header: "Fable"
multiSelect: false
options:
  - label: "🟢 Arm it (on)"
    description: "Turns on the PM loop, 12 gates, workflow-first posture and verifier separation for this session and records it in state.json."
  - label: "Show status"
    description: "Reads state.json and reports armed or off, and since when. Changes nothing."
  - label: "Audit this session"
    description: "Checks the current session for gate violations with evidence. Changes nothing."
  - label: "Disarm (off)"
    description: "Returns to the default posture and records it in state.json. The doctrine file stays available."

2. Record the state (on and off only)

The armed flag lives under one key, fableMethod, in ~/.claude/commander/state.json. The Commander HUD mod reads exactly fableMethod.armed. Merge that key into the file; never replace the file, because other hooks and the CLI keep their own keys there. Run with on or off as the trailing argument:

Read the full file on GitHub · 166 lines

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.

  1. 8d ago Changed · +46 lines · +29 tokens per session 0767f90913ab
  2. 1mo ago First seen · 120 lines · 32 tokens per session scan A fdb69b00c3c0

Subscribe to this mod's changes

ccc-fable is a skill published in the GitHub repository KevinZai/commander (6 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 3,050 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.

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