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 capture0x/YeepForge --skill security-fuzzinggit clone --depth 1 https://github.com/capture0x/YeepForgeWrote 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/capture0x/yeepforge/security-fuzzing)<a href="https://agentmods.dev/skills/capture0x/yeepforge/security-fuzzing"><img src="https://agentmods.dev/badge/skills/capture0x/yeepforge/security-fuzzing/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/capture0x/yeepforge/security-fuzzing"><img src="https://agentmods.dev/badge/skills/capture0x/yeepforge/security-fuzzing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00027 | $0.00596 |
| Opus 5.5 | $0.00011 | $0.00238 |
| Sonnet 5.5 | $0.00005 | $0.00119 |
| Haiku 4.5 | $0.00003 | $0.00060 |
Grade A, and why
security-fuzzing 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 1mo 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
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
What ships with it
8 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.
- references/Fuzzing/command-injection-commix.txt 918 KB
- references/Fuzzing/Databases/SQLi/Generic-SQLi.txt 5.3 KB
- references/Fuzzing/Databases/SQLi/MySQL.fuzzdb.txt 108 B
- references/Fuzzing/Databases/SQLi/NoSQL.txt 605 B
- references/Fuzzing/Databases/SQLi/quick-SQLi.txt 1.2 KB
- references/Fuzzing/Databases/SQLi/sqli.auth.bypass.txt 1.7 KB
- references/Fuzzing/LDAP.Fuzzing.txt 247 B
- references/Fuzzing/special-chars.txt 64 B
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.
- 1mo ago First seen · 87 lines · 27 tokens per session scan A b2e9122e8521
security-fuzzing is a skill published in the GitHub repository capture0x/YeepForge (8 stars, last pushed 2mo ago), with no licence file. It adds 27 tokens to every session and 596 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.
Other skills, from other repositories
playwright
Browser automation, web scraping, E2E testing, and visual regression with Playwright. Covers 30+ patterns: login flows, form testing, responsive design checks, broken link validation, API mocking, data extraction, PDF generation, accessibility audits (axe-core), performance budgets (Lighthouse), visual diffing…
test-commander
Generate unit, integration, E2E, and visual regression tests following the Testing Trophy methodology (80% integration). Covers Vitest/Jest, Testing Library, Playwright, MSW for API mocking, snapshot strategy, visual regression (Chromatic/Percy/Playwright), test factories with Faker, and CI sharding. Use when user…
cel-conformance-testing
Skill for authoring, evaluating, and contributing Common Expression Language (CEL) conformance tests using the cel-spec textproto format.
cel-testing
Skill for testing Google Common Expression Language (CEL) expressions. Use to test or validate expressions.
playwright-cli
Automates browser interactions for web testing, form filling, screenshots, and data extraction using playwright-cli. Use when the user needs to navigate websites, interact with web pages, fill forms, take screenshots, test web applications, extract information from web pages, mock network requests, manage browser…
flutter-mcp-toolkit-control
Drive a running Flutter app — tap, scroll, type, fill forms, hot-reload, navigate. Use when you need to interact with the UI.