delegating-execution

name	delegating-execution
description	Route substantial work through plan, execute, review, follow-up agents at the right effort tier.
user-invocable	true
argument-hint	<task summary> [benign|security]
allowed-tools	Bash(node:*), Read, Workflow, Write
model	claude-sonnet-4-6
context	fork
metadata	{"internal":true}

delegating-execution

The fleet tier doctrine: Fable plans, a lesser model executes, Fable reviews, the lesser model follows up. This skill is the EXECUTION-tiering complement to grilling-plan (which stress-tests a plan's content interactively before building) and operates at the Workflow-harness tier (agent({model, effort})). The CLI-subprocess layer — codex/opencode/kimi backends and when to prefer each — is documented in .claude/skills/fleet/_shared/multi-agent-backends.md; this skill sits above it on the Anthropic Workflow tier.

When to use

• Non-trivial build/design work: multi-file changes, new enforcement surfaces, cross-repo cascades.
• Work whose plan is a deliverable (plan-review-nudge shape: numbered steps, named files + rules).
• NOT for one-file fixes — just do them.
• NOT for plan critique — that is grilling-plan; run it before this skill when the design is unsettled.

The cycle

1. Plan — big brain writes the numbered plan + a fenced execution prompt to .claude/plans/.
2. Execute — floor model follows the plan verbatim in a git worktree.
3. Review — big brain diffs the result against the plan; emits severity + file:line findings.
4. Follow-up — floor model applies each finding, re-runs gates, commits.

Sensitivity routing

Mirror — source of truth: scripts/fleet/lib/delegating-execution/route.mts.

phase	sensitivity	model	effort
plan	benign	claude-fable-5	undefined
plan	security	claude-opus-4-8	high
review	benign	claude-fable-5	undefined
review	security	claude-opus-4-8	high
execute	benign	claude-sonnet-4-6	medium
execute	security	claude-sonnet-4-6	medium
followup	benign	claude-sonnet-4-6	medium
followup	security	claude-sonnet-4-6	medium

• Benign infra/docs planning → Fable (apex tier; adaptive-only, no effort knob).
• Security-sensitive planning (vuln analysis, supply-chain, auth/token/secret handling, exploit-adjacent, hardening) → Opus 4.8 DIRECTLY: Fable's classifiers false-positive on benign security work and the refusal→Opus fallback in spawnAiAgent is not live yet (upstream socket-lib; see fable-fallback). When unsure, say security — the workflow also defaults to it (fail-safe).

How to invoke

Workflow({ name: "delegating-execution", args: { sensitivity: "benign" | "security", task: "<one-paragraph task summary>" } })

sensitivity is optional and defaults to "security".

Output contract

• The plan phase writes .claude/plans/delegating-<slug>.md containing (a) the numbered plan naming files + rules and (b) a fenced execution prompt the floor model runs verbatim.
• Review findings and follow-up receipts are appended to the same doc.
• Plans never land on a committable path (plan-location-guard).

Backing code

• scripts/fleet/lib/delegating-execution/route.mts — the canonical tier table.
• scripts/fleet/lib/delegating-execution/prompts.mts — phase prompt builders (source of truth; the workflow JS carries a mirror).
• .claude/workflows/delegating-execution.js — the Workflow runner.