agent-designer

agent-designer is a skill for Claude Code, Codex from majiayu000/claude-skill-registry. It costs 30 tokens per session (2,306 once invoked), scanned A, a copy of agent-designer, MIT.

A guide to designing systems where multiple AI agents share tasks, communicate, and coordinate their work.

In plain words
What is it for?
Use it to plan agent roles, delegation, communication, tools, and ways to evaluate a multi-agent system.
Why use it?
It gives structure to splitting complex work across agents and choosing how those agents should cooperate.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to plan agent roles, delegation, communication, tools, and ways to evaluate a multi-agent system.

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Install with agentmods
npx agentmods add skills/majiayu000/claude-skill-registry/agent-designer
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.

Any agent
npx skills add majiayu000/claude-skill-registry --skill agent-designer
Clone the repo
git clone --depth 1 https://github.com/majiayu000/claude-skill-registry

Made for: Claude Code, Codex.

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 agent-designer

README.md
[![agentmods](https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/agent-designer/github.svg)](https://agentmods.dev/skills/majiayu000/claude-skill-registry/agent-designer)
Your own site
<a href="https://agentmods.dev/skills/majiayu000/claude-skill-registry/agent-designer"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/agent-designer/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 agent-designer

Your own site · 80×15
<a href="https://agentmods.dev/skills/majiayu000/claude-skill-registry/agent-designer"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/agent-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,306 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 98% copy Near-identical to another mod 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 $0.00030 $0.02306
Opus 5 $0.00015 $0.01153
Sonnet 5 $0.00006 $0.00461
Haiku 4.5 $0.00003 $0.00231

Measured 9d ago against content hash d19d74ea9d8b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

agent-designer 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 9d 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.

Origin

This is a copy

98% identical to agent-designer — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/agent/agent-designer/SKILL.md · 279 lines

How it starts

The opening of the file, as written. The whole thing — 279 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Designer - Multi-Agent System Architecture

Tier: POWERFUL
Category: Engineering
Tags: AI agents, architecture, system design, orchestration, multi-agent systems

Overview

Agent Designer is a comprehensive toolkit for designing, architecting, and evaluating multi-agent systems. It provides structured approaches to agent architecture patterns, tool design principles, communication strategies, and performance evaluation frameworks for building robust, scalable AI agent systems.

Core Capabilities

1. Agent Architecture Patterns

Single Agent Pattern
  • Use Case: Simple, focused tasks with clear boundaries
  • Pros: Minimal complexity, easy debugging, predictable behavior
  • Cons: Limited scalability, single point of failure
  • Implementation: Direct user-agent interaction with comprehensive tool access
Supervisor Pattern
  • Use Case: Hierarchical task decomposition with centralized control
  • Architecture: One supervisor agent coordinating multiple specialist agents
  • Pros: Clear command structure, centralized decision making
  • Cons: Supervisor bottleneck, complex coordination logic
  • Implementation: Supervisor receives tasks, delegates to specialists, aggregates results
Swarm Pattern
  • Use Case: Distributed problem solving with peer-to-peer collaboration
  • Architecture: Multiple autonomous agents with shared objectives
  • Pros: High parallelism, fault tolerance, emergent intelligence
  • Cons: Complex coordination, potential conflicts, harder to predict
  • Implementation: Agent discovery, consensus mechanisms, distributed task allocation
Hierarchical Pattern
  • Use Case: Complex systems with multiple organizational layers
  • Architecture: Tree structure with managers and workers at different levels
  • Pros: Natural organizational mapping, clear responsibilities
  • Cons: Communication overhead, potential bottlenecks at each level
  • Implementation: Multi-level delegation with feedback loops

Read the full file on GitHub · 279 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 279 lines · 30 tokens per session scan A d19d74ea9d8b

Subscribe to this mod's changes

agent-designer is a skill published in the GitHub repository majiayu000/claude-skill-registry (604 stars, last pushed yesterday), licensed MIT. It adds 30 tokens to every session and 2,306 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 98% identical to agent-designer, differing in 2 lines, and is treated as a copy.