fable-domain

fable-domain is a skill in Sahir619/fable-method, last changed 2 Oct 2026. It is instructions only: no scripts, no named hosts and no pre-approved tools. Our pattern check flagged nothing at commit 9924067 on 27 Oct 2026.

Pattern check: nothing flagged · commit 9924067 · 27 Oct 2026

Install

From the author

Discuss a domain with the user, research it from real sources, then generate a trusted skill bundle for it - a step-by-step workflow with a flowchart, a domain adapter, a trap fixture, and a smoke eval. Use when the user says "/fable-domain SECTOR", "make a skill for DOMAIN", "add a domain to the fable method", or "give a lesser model Fable's workflow for DOMAIN". The bundle is the deliverable; a workflow without its flowchart, sources, and trap is not done.

Licence: MIT
Repo stars: 2.3k
Folder last changed: 2 Oct 2026 (opens in a new tab)
Publisher: Sahir619
Files: 2 files
Checked: 9924067 (opens in a new tab) · 27 Oct 2026

Install

Each tab says whether it installs commit 9924067, the one we checked, or the latest version.

No tab for your agent? Use Any agent for OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity, and Claude Code for Cline. Kiro needs the folder copied by hand.

Pinned to commit 9924067, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  mkdir -p .claude/skills &&
  mkdir .claude/skills/fable-domain &&
  cp -R "$tmp"/skills/fable-domain/. .claude/skills/fable-domain/ &&
  rm -rf "$tmp"

If Claude Code was already running and this created the skills folder, run /reload-skills.

Or install the fable plugin it ships in. Installs the latest version, not the one we checked. Installs everything in the plugin, including any hooks, MCP servers and scripts our check doesn't cover.

claude plugin marketplace add Sahir619/fable-method --scope project &&
  claude plugin install fable@fable-method --scope project

Claude Code docs

Pinned to commit 9924067, the one we checked.

Skills in the Claude apps belong to your account rather than to a project.

Make fable-domain.zip, with the skill folder at the top level:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  out="$(mktemp -d)" &&
  cp -R "$tmp"/skills/fable-domain "$out"/fable-domain &&
  (cd "$out" && zip -qr - fable-domain) > fable-domain.zip &&
  rm -rf "$tmp" "$out"

In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose fable-domain.zip.

On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.

Claude apps docs

Pinned to commit 9924067, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  mkdir -p .agents/skills &&
  mkdir .agents/skills/fable-domain &&
  cp -R "$tmp"/skills/fable-domain/. .agents/skills/fable-domain/ &&
  rm -rf "$tmp"

Codex picks up new skills on its own; restart it if this one does not appear.

Codex docs

Pinned to commit 9924067, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  mkdir -p .cursor/skills &&
  mkdir .cursor/skills/fable-domain &&
  cp -R "$tmp"/skills/fable-domain/. .cursor/skills/fable-domain/ &&
  rm -rf "$tmp"

Cursor docs

Pinned to commit 9924067, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  mkdir -p .github/skills &&
  mkdir .github/skills/fable-domain &&
  cp -R "$tmp"/skills/fable-domain/. .github/skills/fable-domain/ &&
  rm -rf "$tmp"

In a running Copilot CLI session, run /skills reload.

Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.

gh skill install Sahir619/fable-method skills/fable-domain/SKILL.md@9924067e82bd48cf3b0426378db93238bfb33e9b --agent github-copilot --scope project

Copilot & VS Code docs

Pinned to commit 9924067, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  mkdir -p .gemini/skills &&
  mkdir .gemini/skills/fable-domain &&
  cp -R "$tmp"/skills/fable-domain/. .gemini/skills/fable-domain/ &&
  rm -rf "$tmp"

In a running session, run /skills reload.

Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.

gemini skills install https://github.com/Sahir619/fable-method.git --path skills/fable-domain --scope workspace

Gemini CLI docs

Pinned to commit 9924067, the one we checked.

Codex, Cursor, Copilot, VS Code, Gemini CLI, OpenCode, Goose, Amp and Zed all read .agents/skills; Claude Code and Kiro list only their own folders.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/Sahir619/fable-method.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  git -C "$tmp" sparse-checkout set -- skills/fable-domain &&
  git -C "$tmp" checkout -q 9924067e82bd48cf3b0426378db93238bfb33e9b &&
  mkdir -p .agents/skills &&
  mkdir .agents/skills/fable-domain &&
  cp -R "$tmp"/skills/fable-domain/. .agents/skills/fable-domain/ &&
  rm -rf "$tmp"

Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.

npx skills@1.7.4 add Sahir619/fable-method --skill fable-domain

Agent Skills docs

What it can touch

From the files and frontmatter at commit 9924067. This is how much a skill can do, not whether it is risky.

What it can touch: Instructions only

It is instructions only: no scripts, no named hosts and no pre-approved tools.

Pattern check

Pattern check: nothing flagged · commit 9924067 · 27 Oct 2026

We checked every text file in this skill, at commit 9924067 on 27 Oct 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.

How the check works Report an incorrect finding

Format check

Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.

Agent Skills specPasses
The open format from agentskills.io, held to what the strictest agents enforce, so one folder loads everywhere.
- Note
  There is no license field, so readers can't tell whether they may reuse the skill. O2
  Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.
Claude CodePasses
Claude apps & API uploadPasses
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Note
  The description is 462 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4
  Fix: If the claude.ai upload refuses it, trim the description to 200 characters.
OpenAI (Codex & API)Passes
VS Code & CopilotPasses

SKILL.md

Files

2 files

Path	Size
SKILL.md (opens in a new tab)	10.3 KB
agents/openai.yaml (opens in a new tab)	212 B

More from Sahir619/fable-method

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End-to-end orchestrated workflow that runs a task the way Fable ran sessions - parallel evidence subagents, one committed plan, surgical execution with an intent gate, adversarial verification agents, honest outcome-first report. Use for non-trivial multi-step tasks when the user says "/fable-loop", "run the fable loop", or "do this the way Fable would". For the rules alone without orchestration, use fable-method; for large multi-phase projects, prefer the GSD workflow and use this inside phases.
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A step-by-step problem-solving loop (classify the ask, define done, gather evidence, decide, act surgically, verify by observation, report outcome-first). Use when the user says "/fable-method", "use the fable method", or "approach this like Fable", or proactively when starting any multi-step task that no task-specific skill covers. Subcommands - plan (stop after the plan), audit (grade finished work against the loop), report (rewrite an answer outcome-first).
- Names web addresses
Pattern check: Nothing flagged
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Install

What it can touch

Pattern check

Format check

SKILL.md

Files

More from Sahir619/fable-method

fable-judge

fable-loop

fable-method