coliseum-from-grain

Use this agent to autonomously compose a single self-contained autonomous-work-assignment envelope from a dimension specification — when you have a named dimension and need a dispatch-ready envelope, when you want an independent envelope draft to cross-check the assignment-composition skill's output, or when you want the envelope built in isolation from the rest of the coliseum (useful when one dimension's envelope is failing the no-pingpong gate and needs a fresh attempt). Returns a 9-section envelope ready to be added to phase-2-assignments.md. <example> Context: A dimension was identified but the auto-composed envelope failed pingpong-detector gate. user: "Re-do assignment-003's envelope from scratch." assistant: "I'll dispatch the assignment-composer agent with the dimension spec and the failure notes." <commentary> Fresh composition without inheriting the failed envelope's framing. </commentary> </example> <example> Context: Mid-orchestration, one dimension turned out to need a different domain expert than originally planned. user: "We need a security-flavored version of assignment-002." assistant: "I'll use assignment-composer to draft a security-domain-tuned envelope for that dimension." </example>

Use this agent when a dense or minimal prompt has been received and you need an independent reading of what the prompt implies before composing any plan. Trigger when the user issues a "grain of sand" — a small surface that plainly encodes a large coliseum, or when you want a second-pass dimensional read to cross-check your own. The agent returns a structured dimensional analysis (verbatim grain, implied scope, forbidden moves, named constraints, candidate dimensions across six lenses, dispatch-budget recommendation) without itself doing dispatch. Examples: <example> Context: User issues a paragraph-long prompt that implies multiple parallel domains. user: "I want a plugin that handles autonomous work assignments — chunked, self-contained, no ping-pong" assistant: "Before I plan, let me get a second read on what this implies dimensionally." <commentary> A dense grain — second-pass dimensional read prevents premature collapse into one obvious axis. </commentary> </example> <example> Context: You have surfaced dimensions yourself and want adversarial cross-check. user: "Continue." assistant: "I'll invoke grain-reader to cross-check the dimension set I surfaced." <commentary> Using the agent as a second-perspective check on your own Phase-1 output. </commentary> </example>

Use this agent as the mandatory gate between Phase 2 (assignment composition) and Phase 3 (dispatch) of the coliseum-from-grain protocol. The agent reads phase-2-assignments.md and verifies each envelope is self-contained enough that a recipient subagent would not need to ping-pong back asking for clarification. Returns PASS / PARTIAL / FAIL per envelope, with specific quoted defects when fail. Trigger automatically from coliseum-dispatch skill before dispatch; trigger manually when you suspect an envelope is leaky and you want an adversarial check; trigger after any envelope is rewritten to re-verify. <example> Context: Phase 2 just completed; you are about to dispatch. user: "Proceed." assistant: "Per the protocol, I'll run pingpong-detector on phase-2-assignments.md before dispatch." <commentary> Mandatory gate; do not skip. </commentary> </example> <example> Context: User skeptical that an envelope is truly self-contained. user: "Is assignment-004 really dispatch-ready or are we kidding ourselves?" assistant: "I'll have the pingpong-detector audit that envelope specifically." </example>

Wraps each surfaced dimension as a self-contained 9-section autonomous-work-assignment envelope — scope, context, success criteria, allowed tools, return format, handoff — all the recipient subagent needs to execute without coming back. Use when invoked by coliseum-orchestrator as Phase 2; when dimensions are named and the next step is to make each independently dispatchable; or when the user asks "compose this as an assignment." The no-pingpong gate validates each envelope before dispatch.

Dispatches a composed set of assignment envelopes to domain-expert subagents in parallel, in a single message with multiple Agent tool calls. Enforces the no-pingpong gate via the pingpong-detector agent before any dispatch fires. Use when invoked by the coliseum-orchestrator as Phase 3; when envelopes are already composed and the next step is parallel execution; or when the user asks to "fan out" or "dispatch in parallel." Produces a dispatch log capturing what was sent, when, and where returns land.

Threads the four-phase grain-to-coliseum transformation — given a dense prompt (the "grain"), autonomously surfaces parallel dimensions, composes self-contained 9-section handoff envelopes, dispatches in parallel, and reconciles returns into a composed whole under a mechanical compression gate. Use when a small-surface prompt plainly implies large scope; when the user invokes "grain → coliseum," "autonomous work assignment," "no ping-pong," or "chunk and hand off." Declines protocol when the grain is not fan-out shaped (≥3 independent dimensions).

Merges the parallel returns from a dispatched coliseum into a single composed whole — alchemy, not concatenation. Resolves tensions between returns explicitly, surfaces any BLOCKED records as named gaps, ensures no return is silently discarded. Use when invoked by the coliseum-orchestrator as Phase 4; when all (or recorded) returns from a Phase-3 dispatch are in and the next step is composition; or when the user asks to "reconcile," "compose the returns," or "merge into a whole." Produces the final artifact — phase-4-composed-whole.md — that closes the grain-to-coliseum loop.

Surfaces the parallel domain dimensions implicit in a dense or minimal prompt. Use when a user prompt is small on the surface but plainly implies multiple independent domains needing different expertise; when explicitly invoked by the coliseum-orchestrator skill as Phase 1; or when the user asks "what dimensions does this prompt encode" or "what axes does this break into." Produces a named dimension set where each dimension is independently executable and not a paraphrase of another.