Owns all prose, markdown files and the comments inside source files and fences through a register law, an anti-anchoring rule against rosters, counts, and freezes, a named defect catalog, file-kind templates, and a deterministic gate and fixer. Use when authoring, editing, reviewing, or markdown files of any kind, and comments in source files; when designing a document schema or marker vocabulary; when pruning code comments; or on "clean up this doc", "tighten the prose", "this doc is stale".
Owns work placement and delegation craft across Claude Code's execution surfaces — main turn, `/btw`, fork, subagent, background task, nested subagent, agent team, dynamic workflow — with the selection economics that pick one, the delegation contract that makes a worker prompt self-contained (objective, territory, output contract, receipt), the communication topologies (star, pipeline, panel, tournament, generate-filter, loop), depth and fan-out budgeting, and the runtime mechanics of background permission surfacing, `SendMessage` resume, and worker memory. Use when parallelizing work, delegating a task to a subagent or teammate, choosing between a subagent, fork, team, or workflow, writing a `.claude/agents/` definition, designing a fan-out or review pipeline, or when a delegation stalls, over-prompts for permission, or returns weak results. Authoring runnable workflow scripts belongs to workflow-creator; gpt-5.6 offload belongs to the codex skill and Gemini offload to agy; harness configuration belongs to h
Bounded one-shot Gemini sub-calls through the Antigravity CLI (`agy`): multimodal judgment over screenshots, generated images, UI states, and diagrams, read-only adversarial review lanes that return typed falsifiable findings as a second-model perspective, Nano Banana image generation and edit iteration feeding html-studio and mermaid work, broad synthesis across competing designs, ambiguity reduction into crisp constraints, alternate approaches and counterexample hunts, and redacted log or dataset distillation. Use when a task gains from an external second model, a critique or red-team stage wants an independent Gemini lens, or the request names Gemini, Antigravity, Google Ultra, or Nano Banana. gpt-5.6 offload belongs to the codex skill; delegation across Claude's own surfaces belongs to agent-dispatch.
