Agent Plugins Marketplace
All plugins

fable-mode

v0.1.1

Fable 5's judgment habits as skills + hooks for Opus 4.8 — precondition checking, executive-mode interaction, one-screen output, adversarial self-review, and two enforcement hooks (rendered-proof, session-exit-hygiene)

Claude Code4 Skills

By Kyle TaborLicense: MIT1 GitHub starsUpdated last week

Directory evidence

Runtimes
Claude Code
Parsed components
4 skill or MCP entries
Source updated
Sep 16, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology

Install fable-mode for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install fable-mode@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/kyletabor/claude_plugins

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is fable-mode/.

Plugin files

fable-mode/
├── .claude-plugin/plugin.json
├── skills/but-for-real/SKILL.md
├── skills/executive-mode/SKILL.md
├── skills/last-screen/SKILL.md
└── skills/precondition-check/SKILL.md

Included Skills4

but-for-realskills/but-for-real/SKILL.md

Use BEFORE claiming any work is done, complete, fixed, or passing — before committing, before "all tests pass", before writing a completion summary. A hostile self-review pass - reread the original request, read the full diff, run the thing, and attach a receipt to every claim.

executive-modeskills/executive-mode/SKILL.md

Use on EVERY user turn when working with an executive/PM user — before acting, before asking any question, before presenting options, and before ending a work session. Classifies the turn (question/jam/command), decides act-vs-ask, and enforces clean handbacks (no uncommitted work, sized next moves).

last-screenskills/last-screen/SKILL.md

Use when composing ANY reply to the user — especially explanations, reports, research summaries, or status updates. The user reads only the last screen of a turn and never scrolls up. Enforces answer-first structure, one-screen length, jargon defined at first use with a care-verdict, and a short ELI5 close.

precondition-checkskills/precondition-check/SKILL.md

Use BEFORE emitting any recommendation, suggestion, "we should X", design idea, or fix proposal — and before accepting any factual premise embedded in a request (e.g. "since the library doesn't support X..."). Fires in casual conversation and asides, not just build mode. Verify the precondition a suggestion rests on before saying it.

Plugin manifests1

fable-mode/.claude-plugin/plugin.json
{
  "name": "fable-mode",
  "version": "0.1.1",
  "description": "Fable 5's judgment habits as skills + hooks for Opus 4.8 — precondition checking, executive-mode interaction, one-screen output, adversarial self-review, and two enforcement hooks (rendered-proof, session-exit-hygiene)",
  "author": {
    "name": "Kyle Tabor",
    "url": "https://github.com/kyletabor"
  },
  "repository": "https://github.com/kyletabor/claude_plugins",
  "license": "MIT",
  "keywords": [
    "judgment",
    "verification",
    "preconditions",
    "executive",
    "output-style",
    "self-review"
  ]
}

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[fable-mode on Agent Plugins Marketplace](https://pluginsmp.com/plugins/fable-mode)