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 majiayu000/claude-skill-registry --skill agent-creation-skillgit clone --depth 1 https://github.com/majiayu000/claude-skill-registryWrote 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/majiayu000/claude-skill-registry/agent-creation-skill)<a href="https://agentmods.dev/skills/majiayu000/claude-skill-registry/agent-creation-skill"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/agent-creation-skill/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/majiayu000/claude-skill-registry/agent-creation-skill"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/agent-creation-skill.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 | $0.00000 | $0.01970 |
| Opus 5 | $0.00000 | $0.00985 |
| Sonnet 5 | $0.00000 | $0.00394 |
| Haiku 4.5 | $0.00000 | $0.00197 |
Grade A, and why
agent-creation-skill 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 8d 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 — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Creation Skill
[!FIXED!]
Purpose
This skill provides procedures for creating new agents when project complexity requires delegation. Agents should be created on-demand, not preemptively.
When to use:
- Task complexity exceeds single-agent capacity
- Specialized expertise is needed
- Parallel work would be beneficial
- Recurring tasks would benefit from dedicated agent
When NOT to use:
- Simple tasks Head Cook can handle
- One-off tasks
- Early project phases (keep simple) [!FIXED!]
=== PREREQUISITES ===
Before using this skill:
- You are Head Cook (only Head Cook creates agents)
- Assessed that complexity warrants new agent
- Identified appropriate template
- Buildlog is current
=== PROCEDURE: ASSESS NEED ===
Questions to Ask
-
Is this task recurring?
- One-off → Handle directly
- Recurring → Consider agent
-
Does this require specialized expertise?
- Coding focus → Code Chef
- Review focus → Review Chef
- Documentation focus → Doc Chef
- General → Handle directly
-
Would parallel work help?
- Sequential is fine → Handle directly
- Parallel beneficial → Consider agent
-
Is current workload sustainable?
- Manageable → Handle directly
- Overwhelming → Create agent(s)
Decision Matrix
| Recurring | Specialized | Parallel | Overwhelming | Action |
|---|---|---|---|---|
| No | No | No | No | Handle directly |
| Yes | Any | Any | Any | Create agent |
| Any | Yes | Any | Any | Create agent |
| Any | Any | Yes | Any | Create agent |
| Any | Any | Any | Yes | Create agent(s) |
=== PROCEDURE: SELECT TEMPLATE ===
Available Templates
| Template | Use For |
|---|---|
agent.template.md |
Custom/new agent types |
code-chef.template.md |
Dedicated coding agent |
review-chef.template.md |
Code review specialist |
doc-chef.template.md |
Documentation specialist |
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.
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.
- 8d ago First seen · 328 lines · 0 tokens per session scan A fe91915bf563
agent-creation-skill is a skill published in the GitHub repository majiayu000/claude-skill-registry (600 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,970 tokens. 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.
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Procedural guide for creating new agents from templates when project complexity requires delegation.
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