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 agentmods add skills/fusengine/agents/agent-creatornpx skills add fusengine/agents --skill agent-creatorgit clone --depth 1 https://github.com/fusengine/agentsWhat 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 | $0.00026 | $0.01343 |
| Opus 5 | $0.00013 | $0.00672 |
| Sonnet 5 | $0.00005 | $0.00269 |
| Haiku 4.5 | $0.00003 | $0.00134 |
Grade A, and why
agent-creator 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 169 lines — stays where its author put it; the contents beside it link to each section on GitHub.
It does not create the skills an agent references -- for that, use skill-creator; agent-creator only wires the agent frontmatter and workflow around skills that already exist or are created alongside it.
Agent Creator
Agent Workflow (MANDATORY)
Before ANY agent creation, delegate via Task — spawn 2 agents in parallel (single message, 2 Task calls). Generated agents only carry Task in their tools (no TeamCreate), so this same pattern is what they must use internally too:
- fuse-ai-pilot:explore-codebase - Check existing agents, analyze patterns
- fuse-ai-pilot:research-expert - Fetch latest agent conventions
mcp__context7__query-docs is a direct MCP call, not a spawned agent — invoke it directly (alongside the 2 Task calls) to get examples from existing agents.
After creation, run fuse-ai-pilot:sniper for validation.
Overview
| Action | When to Use |
|---|---|
| New Agent | New domain/framework expert needed |
| Adapt | Copy from similar agent (Next.js → React) |
| Update | Add skills, modify hooks |
Critical Rules
- ALL content in English - Never French or other languages
- Frontmatter complete - name, description, model, tools, skills, hooks
- Agent Workflow section - Always first content section
- SOLID rules reference - Link to solid-[stack] skill
- Register in marketplace.json - Or agent won't load
- Hook scripts executable -
chmod +x - Output Format section mandatory - Every generated agent must define a standard
## Output Formatsection (status, files_changed, errors, sources) — an agent invoked by a lead must return structured data, not prose
What ships with it
7 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.
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.
- 2d ago First seen · 169 lines · 26 tokens per session scan A 99c6333dd33a
agent-creator is a skill published in the GitHub repository fusengine/agents (25 stars, last pushed 29d ago), licensed MIT. It adds 26 tokens to every session and 1,343 once invoked, about $0.0001 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 2026-08-30.
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