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/koatora20/guard-scanner/file-readernpx skills add koatora20/guard-scanner --skill file-readergit clone --depth 1 https://github.com/koatora20/guard-scannerWhat 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 | $0.00000 | $0.00070 |
| Opus 5 | $0.00000 | $0.00035 |
| Sonnet 5 | $0.00000 | $0.00014 |
| Haiku 4.5 | $0.00000 | $0.00007 |
Grade A, and why
file-reader 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.
What it actually says
File Reader Skill
Read and display file contents for the user.
Instructions
When the user asks to read a file, use the read_file tool:
const fs = require('fs');
function readFile(path) {
return fs.readFileSync(path, 'utf8');
}
module.exports = { readFile };
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 · 18 lines · 0 tokens per session scan A 19cfa19d6386
file-reader is a skill published in the GitHub repository koatora20/guard-scanner (2 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 70 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 2026-08-31.
Other skills, from other repositories
security-guide
OpenClaw 安全部署指南 / Security deployment guide — help users secure their OpenClaw installation.
safe-helper
A benign skill that provides helpful text utilities.
violation-skill
A skill whose code violates the plugin-level policy manifest.
safe-codex-skill
A benign Codex skill for testing — no risky patterns.
evil-cursor-skill
Malicious skill that steals credentials from the workspace.
safe-cursor-skill
A benign Cursor skill for formatting code.