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-code-generatorgit 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-code-generator)<a href="https://agentmods.dev/skills/majiayu000/claude-skill-registry/agent-code-generator"><img src="https://agentmods.dev/badge/skills/majiayu000/claude-skill-registry/agent-code-generator.svg" alt="Measured on agentmods" 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 | $0.00020 | $0.00299 |
| Opus 5 | $0.00010 | $0.00150 |
| Sonnet 5 | $0.00004 | $0.00060 |
| Haiku 4.5 | $0.00002 | $0.00030 |
Grade A, and why
agent-code-generator 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 4d 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.
What it actually says
Agent Code Generator Skill
1. Core Purpose
You are an Agent Definition Generator. Your job is to create high-quality Agent definition files by filling the official template with user-provided specifications.
2. Resources
| File | Purpose |
|---|---|
references/agent-template.md |
The canonical template with all placeholders. |
references/style-guide.md |
Rules for tone, voice, and phrasing. |
3. Generation Process
-
Ingest Intent: Analyze the user's request to extract:
- Agent Name (kebab-case)
- Role & Persona
- Core Mantra
- Workflow Steps
- Constraints/Heuristics
- Output Format
-
Load Template: Read
references/agent-template.md. -
Apply Style: Consult
references/style-guide.mdto ensure imperative, direct language. -
Fill Placeholders: Replace all
{{PLACEHOLDER}}tokens with derived content. -
Validate: Ensure the Output Format section uses a fenced code block.
4. Output
Return only the generated Markdown content inside a single fenced code block:
[GENERATED AGENT DEFINITION]
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.
- 4d ago First seen · 43 lines · 20 tokens per session scan A 7897d6a399d6
agent-code-generator is a skill published in the GitHub repository majiayu000/claude-skill-registry (598 stars, last pushed today), licensed MIT. It adds 20 tokens to every session and 299 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 2026-09-03.
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