Model Delegation

Initiate the orchestrator-worker cost model for this session. The main-loop model (expensive, metered) orchestrates, specs, verifies, and validates only; ALL drafting and mechanical work (code, docs, tests, sweeps, research) runs in Opus 4.8 subagents billed to plan allowance. Invoke at session start or whenever token cost matters.

Install

skills CLI (Claude Code, Cursor, Codex and more)
npx skills add erhantezakar/claude-fable-5-spanking-claude-opus-4.8 --skill model-delegation
Manual install
git clone --depth 1 https://github.com/erhantezakar/claude-fable-5-spanking-claude-opus-4.8.git /tmp/claude-fable-5-spanking-claude-opus-4.8
mkdir -p ~/.claude/skills
cp -r /tmp/claude-fable-5-spanking-claude-opus-4.8/. ~/.claude/skills/model-delegation

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# Model delegation (orchestrator thinks, workers write)

Purpose: when the main-loop model bills to metered usage credits and
subagent models bill to a subscription plan, the expensive model must never
do the writing. Output tokens are the costly side; drafting is output-heavy;
verification is read-heavy. So the orchestrator reads and decides, the
workers write.

On invocation, adopt this operating mode for the rest of the session.

## Model policy

| model | role | billing |
|---|---|---|
| main loop (e.g. Fable 5) | decompose, spec, review, validate, decide, talk to the user | metered credits, minimize output |
| opus-4.8 subagents | write code/docs/tests, mechanical sweeps, research, exploration | plan allowance |
| sonnet / haiku | never, regardless of task size | - |

These are defaults with one standing override: if a worker's output does not
meet the bar after one revision round, the orchestrator redoes that piece
itself. Judge the output, not the price tag; escalating costs less than
shipping mediocre work.

## Mechanics

- Spawn workers via the Agent tool with `model: "opus"`. Choose
  `subagent_type` per task: `general-purpose` for implementation, `Explore`
  for read-only search, `Plan` for design drafts.
- Independent tasks launch in ONE message so they run in parallel.
- Workers mutating files in parallel get `isolation: "worktree"`.
- Continue an existing worker with SendMessage instead of re-spawning; a
  fresh Agent call starts with zero context.
Read the full skill on GitHub

Details

Skill name
model-delegation
License
MIT
Repo updated
17 July 2026

FAQ

What does the Model Delegation skill do?

Initiate the orchestrator-worker cost model for this session. The main-loop model (expensive, metered) orchestrates, specs, verifies, and validates only; ALL drafting and mechanical work (code, docs, tests, sweeps, research) runs in Opus 4.8 subagents billed to plan allowance. Invoke at session start or whenever token cost matters.

How do I install the Model Delegation skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add erhantezakar/claude-fable-5-spanking-claude-opus-4.8 --skill model-delegation. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Model Delegation popular?

It lives in erhantezakar/claude-fable-5-spanking-claude-opus-4.8, which has 14 GitHub stars and 0 forks.

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