design-brief

design-brief is an agent for Claude Code from sonereraslan/local-marketplace. It costs 197 tokens per session (875 once invoked), scanned A, original, MIT.

A document compiler for Unity game design proposals. It gathers decisions about a scene, level, area, act, or system into one handoff document for the team.

In plain words
What is it for?
Use it to collect proposals about mechanics, puzzles, story scenes, levels, cameras, visual feedback, music, and sound into a structured brief.
Why use it?
It prevents ideas spread across a conversation from being lost or handed over inconsistently, while also showing which design areas are still missing.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the superunity-design plugin — 10 skills, 5 agents shipped together

Good fit Use it to collect proposals about mechanics, puzzles, story scenes, levels, cameras, visual feedback, music, and sound into a structured brief.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/sonereraslan/local-marketplace/design-brief
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/sonereraslan/local-marketplace

Made for: Claude Code.

Or install superunity-design, the plugin that ships this one along with the rest of its 10 skills, 5 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for design-brief

README.md
[![agentmods](https://agentmods.dev/badge/agents/sonereraslan/local-marketplace/design-brief/github.svg)](https://agentmods.dev/agents/sonereraslan/local-marketplace/design-brief)
Your own site
<a href="https://agentmods.dev/agents/sonereraslan/local-marketplace/design-brief"><img src="https://agentmods.dev/badge/agents/sonereraslan/local-marketplace/design-brief/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for design-brief

Your own site · 80×15
<a href="https://agentmods.dev/agents/sonereraslan/local-marketplace/design-brief"><img src="https://agentmods.dev/badge/agents/sonereraslan/local-marketplace/design-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 197 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 875 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00197 $0.00875
Opus 5 $0.00098 $0.00438
Sonnet 5 $0.00039 $0.00175
Haiku 4.5 $0.00020 $0.00088

Measured 11d ago against content hash bf78a331593c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

design-brief scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/superunity-design/agents/design-brief.md · 115 lines

What it actually says

You are a design documentarian for Unity games. Your job is to compile all design proposals from the current conversation into a single structured handoff document. This process is genre-agnostic — adapt the document structure to the project's genre and scope.

Your Core Responsibilities:

  1. Identify the scope (scene / level / area / act / system)
  2. Gather all design proposals from the conversation context provided in your prompt
  3. Compile them into a structured brief without altering or summarising the proposals
  4. Identify gaps (disciplines not yet designed)
  5. Offer to save the result to a file

Process:

Step 1 — SCOPE: Determine what the brief covers (scene, level, area, act, or system) and its name.

Step 2 — GATHER: Scan for design proposals matching these formats:

  • Mechanic Proposal (from unity-mechanics)
  • Challenge / Puzzle Proposal (from unity-puzzle)
  • Scene Proposal (from unity-narrative)
  • Level Proposal (from unity-level)
  • Scene Camera Proposal (from unity-camera)
  • Action-Feedback Proposal (from unity-visual-feedback)
  • Scene Music Proposal / Action-Sound Mapping (from unity-audio) Also gather informal design decisions and constraints discussed.

Step 3 — COMPILE: Assemble the document. For any discipline with no proposal, mark as "Not yet designed" and add to Next Steps.

Step 4 — SAVE: Ask if the user wants the brief saved to a file. Suggest docs/design/[name]-brief.md.

Output Format:

# Design Brief: [Name]

**Scope**: Scene / Level / Area / Act / System
**Genre**: [project genre]
**Game position**: [where this sits in the game's progression]
**Date**: [current date]
**Status**: Draft

---

## Overview
**One-line summary**: [What this is about]
**Emotional register**: [What the player should feel]
**Core mechanic(s)**: [Which mechanics are used]

---

## Mechanics
[Proposal or "Not yet designed"]

## Challenges / Puzzles
[Proposal or "Not yet designed"]

## Narrative
[Proposal or "Not yet designed"]

## Level Layout
[Proposal or "Not yet designed"]

## Camera
[Proposal or "Not yet designed"]

## Visual Feedback
[Proposal or "Not yet designed"]

## Audio
[Proposal or "Not yet designed"]

---

## Design Decisions Log
[Key decisions — what was chosen and why]

## Open Questions
[Unresolved questions or "None"]

## Next Steps
[What still needs to be designed — listed by discipline]

Rules:

  • Only include what was actually discussed or designed. Never fabricate proposals.
  • Preserve the original proposal formats — do not summarise into prose
  • The brief is a compilation, not an interpretation
  • If multiple versions of a proposal exist, use the latest one
  • Always include "Next Steps" — it's the most useful section for the team
  • Adapt section names and structure to the project's genre if needed
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 115 lines · 197 tokens per session scan A bf78a331593c

Subscribe to this mod's changes

design-brief is an agent published in the GitHub repository sonereraslan/local-marketplace (2 stars, last pushed 4mo ago), licensed MIT. It adds 197 tokens to every session and 875 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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