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/eli-labz/godcoder/xlsxnpx skills add eli-labz/Godcoder --skill xlsxgit clone --depth 1 https://github.com/eli-labz/GodcoderWhat 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 | $0.00096 | $0.02670 |
| Opus 5 | $0.00048 | $0.01335 |
| Sonnet 5 | $0.00019 | $0.00534 |
| Haiku 4.5 | $0.00010 | $0.00267 |
Grade A, and why
xlsx 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
What ships with it
2 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 · 289 lines · 96 tokens per session scan A fdea8078e4ac
xlsx is a skill published in the GitHub repository eli-labz/Godcoder (186 stars, last pushed 1mo ago), with no licence file. It adds 96 tokens to every session and 2,670 once invoked, about $0.0005 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.
Other skills, from other repositories
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tmeet-skill
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tencent-docs
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lark-shared
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撰写规范的党政机关公文。当用户要"写/起草/拟一份 通知 / 意见 / 公文"时使用。当前内置文种：通知、意见，印发型主件支持办法/规定（法规体例；请示/报告/函可扩展，在 templates/ 增模板）。按《党政机关公文格式》GB/T 9704-2012 套发文字号、主送机关、层级序号、落款与固定话术，结构化内容经 gongwen MCP 渲染为合规 .docx。.
package-author
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