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.
npx skills add basher83/lunar-claude --skill multi-agent-compositiongit clone --depth 1 https://github.com/basher83/lunar-claudeWrote 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.
[](https://agentmods.dev/skills/basher83/lunar-claude/multi-agent-composition)<a href="https://agentmods.dev/skills/basher83/lunar-claude/multi-agent-composition"><img src="https://agentmods.dev/badge/skills/basher83/lunar-claude/multi-agent-composition/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.
<a href="https://agentmods.dev/skills/basher83/lunar-claude/multi-agent-composition"><img src="https://agentmods.dev/badge/skills/basher83/lunar-claude/multi-agent-composition.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00047 | $0.01929 |
| Opus 5.5 | $0.00019 | $0.00772 |
| Sonnet 5.5 | $0.00009 | $0.00386 |
| Haiku 4.5 | $0.00005 | $0.00193 |
Grade A, and why
multi-agent-composition 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 2mo 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- multi-agent-composition — 86% identical, 13 lines differ
How it starts
The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Multi-Agent Composition
Master Claude Code's components, patterns, and principles to build effective agentic systems.
When to Use This Knowledge
Use this knowledge when:
- Learning Claude Code - Understanding what each component does
- Making architectural decisions - Choosing Skills vs Sub-Agents vs MCP vs Slash Commands
- Building custom solutions - Creating specialized agents or orchestration systems
- Scaling agentic workflows - Moving from single agents to multi-agent orchestration
- Debugging issues - Understanding why components behave certain ways
- Adding observability - Implementing hooks for monitoring and control
Quick Reference
The Core 4 Framework
Every agent is built on these four elements:
- Context - What information does the agent have?
- Model - What capabilities does the model provide?
- Prompt - What instruction are you giving?
- Tools - What actions can the agent take?
"Everything comes down to just four pieces. If you understand these, you will win."
Component Overview
| Component | Trigger | Use When | Best For |
|---|---|---|---|
| Skills | Agent-invoked | Repeat problems needing management | Domain-specific workflows |
| Sub-Agents | Tool-invoked | Parallelization & context isolation | Scale & batch operations |
| MCP Servers | As needed | External data/services | Integration with external systems |
| Slash Commands | Manual/tool | One-off tasks | Simple repeatable prompts |
| Hooks | Lifecycle events | Observability & control | Monitoring & blocking |
Composition Hierarchy
Skills (Top Layer)
├─→ Can use: Sub-Agents, Slash Commands, MCP Servers, Other Skills
└─→ Purpose: Orchestrate primitives for repeatable workflows
Sub-Agents (Execution Layer)
├─→ Can use: Slash Commands, Skills
└─→ Cannot nest other Sub-Agents
Slash Commands (Primitive Layer)
└─→ The fundamental building block
MCP Servers (Integration Layer)
└─→ Connect external systems
What ships with it
11 files 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.
- anti-patterns/common-mistakes.md 13 KB
- examples/case-studies.md 30 KB
- examples/progression-example.md 7.7 KB
- patterns/context-in-composition.md 4.3 KB
- patterns/context-management.md 17 KB
- patterns/decision-framework.md 15 KB
- patterns/hooks-in-composition.md 24 KB
- patterns/orchestrator-pattern.md 18 KB
- reference/architecture.md 18 KB
- reference/core-4-framework.md 13 KB
- workflows/decision-tree.md 20 KB
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.
- 2mo ago First seen · 213 lines · 47 tokens per session scan A ada8b9035270
multi-agent-composition is a skill published in the GitHub repository basher83/lunar-claude (23 stars, last pushed today), licensed MIT. It adds 47 tokens to every session and 1,929 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.
multi-agent-composition compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| multi-agent-compositionbasher83/lunar-claude | Skill | 23 | today | MIT | A | 47 | Claude Code |
| imagegenopenai/codex | Skill | 134k | today | Apache-2.0 | A | 113 | Codex |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 3d ago | MIT | A | 200 | Claude Code, Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| systematic-debuggingobra/superpowers | Skill | 315k | 6d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |