Agent skill

Fable Fable

Run fable-mode execution discipline on Claude Fable 5.1 — the top of the escalation ladder and the strongest staged run available.

No licenceAuto-check passedProductivity & Automation

Install Fable Fable

skills CLI

$ npx skills add mrtooher/fable-mode --skill fable-fable -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install mrtooher/fable-mode fable-fable --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/mrtooher/fable-mode.git skills-src && mkdir -p .claude/skills && cp -r skills-src/fable-fable .claude/skills/fable-fable && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "fable-fable" agent skill from https://github.com/mrtooher/fable-mode/tree/main/fable-fable into .claude/skills/fable-fable/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fable-fable", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/mrtooher/fable-mode/tree/main/fable-fable

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add mrtooher/fable-mode --skill fable-fable -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install mrtooher/fable-mode fable-fable --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mrtooher/fable-mode.git skills-src && mkdir -p .agents/skills && cp -r skills-src/fable-fable .agents/skills/fable-fable && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "fable-fable" agent skill from https://github.com/mrtooher/fable-mode/tree/main/fable-fable into .agents/skills/fable-fable/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fable-fable", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add mrtooher/fable-mode --skill fable-fable -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install mrtooher/fable-mode fable-fable --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mrtooher/fable-mode.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/fable-fable .cursor/skills/fable-fable && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "fable-fable" agent skill from https://github.com/mrtooher/fable-mode/tree/main/fable-fable into .cursor/skills/fable-fable/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fable-fable", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/mrtooher/fable-mode.git --path fable-fable

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add mrtooher/fable-mode --skill fable-fable -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install mrtooher/fable-mode fable-fable --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mrtooher/fable-mode.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/fable-fable .gemini/skills/fable-fable && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "fable-fable" agent skill from https://github.com/mrtooher/fable-mode/tree/main/fable-fable into .gemini/skills/fable-fable/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fable-fable", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install mrtooher/fable-mode fable-fable

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add mrtooher/fable-mode --skill fable-fable -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/mrtooher/fable-mode.git skills-src && mkdir -p .github/skills && cp -r skills-src/fable-fable .github/skills/fable-fable && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "fable-fable" agent skill from https://github.com/mrtooher/fable-mode/tree/main/fable-fable into .github/skills/fable-fable/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fable-fable", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add mrtooher/fable-mode --skill fable-fable -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install mrtooher/fable-mode fable-fable --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/mrtooher/fable-mode.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/fable-fable .opencode/skills/fable-fable && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "fable-fable" agent skill from https://github.com/mrtooher/fable-mode/tree/main/fable-fable into .opencode/skills/fable-fable/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "fable-fable", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: fable-fable
GitHub stars: 870
Token cost: ~1.1k tokens
SKILL.md length: 451 words
Files: 1
Skills in repo: 7
Repo updated: Sep 2, 2026
First seen: Oct 7, 2026
Licence: None found

At a glance

Run fable-mode execution discipline on Claude Fable 5.1 — the top of the escalation ladder and the strongest staged run available.

Works in 5 steps: Confirm the fable agents are installed… → Spawn @fable-orchestrator via the Task… → Do not restate the Core Loop or… → …
The user explicitly asks for thorough/systematic/deep work handling on the strongest model (fable on fable
SKILL.md covers How to run it and Known limitation
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Fable Fable is an agent skill from mrtooher/fable-mode. Run fable-mode execution discipline on Claude Fable 5.1 — the top of the escalation ladder and the strongest staged run available. Routes the task to the @fable-orchestrator agent with its model overridden to Fable (model: "fable"), which stages the work, delegates artifact production to @fable-worker-sonnet / @fable-worker-haiku, and cold-checks deliverables with @fable-verifier. Trigger when the user explicitly asks for thorough/systematic/"deep work" handling on the strongest model ("fable on fable", "stage…

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Focus and ADHD support. The repository describes itself as: A Claude skill that activates Fable-style agentic behavior: explicit multi-stage planning, sub-agent delegation, and self-verification.

When your agent uses it

The user explicitly asks for thorough/systematic/deep work handling on the strongest model (fable on fable
Stage this on fable
Run this on 5.1)
A fable-opus run reports the task exceeds Opuss ceiling

Example prompts

“deep work”
“fable on fable”
“stage this on fable”
“/fable-fable”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

Confirm the fable agents are installed (fable-orchestrator,
Spawn @fable-orchestrator via the Task tool (`subagent_type
Do not restate the Core Loop or operational rules in the briefing — the
When it returns, relay the result, every stage it marked unverified, and its
Mandatory delivery gate: before presenting the result to the user, invoke

What it can do on your machine

Read from SKILL.md and the folder at commit a368f94. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Fable Fable loads about 1.1k tokens when it runs. Until then it costs about 246 tokens; SKILL.md has 451 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~246
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 451 words (~1,081 tokens).

“Same structural delegation as fable-opus: the orchestrator is a real agent definition (agents/fable-orchestrator.md) with no Write/Edit tool, so it cannot do the work inline. The only difference from fable-opus is the model the orchestrator runs on. Fable 5.1 is the…”

— opening of SKILL.md by mrtooher

name: fable-fable

Read the full SKILL.md on GitHub

Files

Just SKILL.md in fable-fable of mrtooher/fable-mode.

Open the folder on GitHubat commit a368f94

Compare with similar skills

Fable Fable next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Fable Fable compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Fable Fable this skillmrtooher/fable-mode	870	—	~1.1k	Automated safety check: Pass	None	1 mo ago
I Have AdhdTanStack/ai	3.2k	5 repos	~1.8k	Automated safety check: Pass	MIT	today
Attention Kindalexgreensh/attention-span	1.4k	—	~2k	Automated safety check: Pass	AGPL-3.0	1 mo ago
Remind Meshaheer-00/claude-adhd	104	—	~1.1k	Automated safety check: Pass	None	28 days ago
Daily Focus Boardgithub/awesome-copilot	40k	—	~3k	Automated safety check: Pass	MIT	today
Attention Controlaaddrick/attention-control	118	—	~3.6k	Automated safety check: Pass	MIT	2 mo ago

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I Have Adhd
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3.2k GitHub starsUsed in 5 repos~1.8k tokens
Productivity & AutomationAuto-check passed
Attention Kind
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Answer in the ADHD-friendly Attention-kind style for the rest of this chat.
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Remind Me
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Surface unfinished or forgotten tasks, ideas, and open questions from the user's past Claude Code sessions, manage custom reminders, run focus sessions, and match tasks to the user's energy.
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Daily Focus Board
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Attention Control
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Questions about Fable Fable

What does Fable Fable do?

Run fable-mode execution discipline on Claude Fable 5.1 — the top of the escalation ladder and the strongest staged run available. Fable Fable is an agent skill from mrtooher/fable-mode.1 — the top of the escalation ladder and the strongest staged run available.

When should I use Fable Fable?

Fable Fable fits situations like: the user explicitly asks for thorough/systematic/deep work handling on the strongest model (fable on fable; stage this on fable; run this on 5.1); A fable-opus run reports the task exceeds Opuss ceiling.

How do I install Fable Fable in Claude Code?

Run `npx skills add mrtooher/fable-mode --skill fable-fable -a claude-code`. Or copy the skill folder (fable-fable in mrtooher/fable-mode) into .claude/skills/fable-fable in your project. Claude Code loads it when a task matches its description.

How do I install Fable Fable in Codex?

Run `npx skills add mrtooher/fable-mode --skill fable-fable -a codex`. Or copy the skill folder (fable-fable in mrtooher/fable-mode) into .agents/skills/fable-fable in your project. Codex loads it when a task matches its description.

Can I use Fable Fable in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mrtooher/fable-mode --skill fable-fable -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/fable-fable, .gemini/skills/fable-fable, .github/skills/fable-fable and .opencode/skills/fable-fable in your project.

What does Fable Fable need to run?

SKILL.md names no scripts, command-line tools or credentials: Fable Fable is instructions for the agent only.

Does Fable Fable access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Fable Fable safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Fable Fable use?

No licence was found for Fable Fable or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Fable Fable use?

About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Fable Fable?

Skills that share tags, products or a category with Fable Fable: I Have Adhd (TanStack/ai, 3.2k stars), Attention Kind (alexgreensh/attention-span, 1.4k stars), Remind Me (shaheer-00/claude-adhd, 104 stars) and Daily Focus Board (github/awesome-copilot, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Fable Fable?

mrtooher (a GitHub user) maintains it in mrtooher/fable-mode, which has 870 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on September 2, 2026.

Source: mrtooher/fable-mode on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Fable Fable

Install Fable Fable

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

I Have Adhd

Attention Kind

Remind Me

Daily Focus Board

Attention Control

Chief Of Staff

More from mrtooher/fable-mode

Double Check

Execution Guardrails

Fable Mode

Fable Opus

Fable Haiku

Fable Sonnet

Questions about Fable Fable

Install Fable Fable

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Compare with similar skills

Similar skills

More from mrtooher/fable-mode

Related

Questions about Fable Fable