ccboard: Skill for Claude Code

.claude/skills/cybersec/SKILL.md

cybersec is a skill for Claude Code from FlorianBruniaux/ccboard. It costs 48 tokens per session (293 once invoked), scanned A, original, MIT.

A security-audit guide for ccboard, a Rust web application using Leptos for its interface and Axum for its server. It covers authentication, permissions, browser-side WebAssembly code, database queries, and dependency risks.

In plain words
What is it for?
Use it to review login and session flows, CSRF protection, Axum route guards, WebAssembly exposure, SQL input handling, unsafe blocks, panic-prone code, and dependency vulnerabilities.
Why use it?
It provides checks for common security problems such as missing request protection, weak route permissions, exposed client data, unsafe database input, known vulnerable dependencies, and risky Rust code.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is FlorianBruniaux/ccboard's own configuration. It tells Claude Code how to work on ccboard itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything ccboard configures →

Part of the ccboard plugin — 14 skills, 2 commands, 10 agents, 4 hooks, 2 MCP servers shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to FlorianBruniaux/ccboard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/FlorianBruniaux/ccboard/main/.claude/skills/cybersec/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/FlorianBruniaux/ccboard

Made for: Claude Code.

Or install ccboard, the plugin that ships this one along with the rest of its 14 skills, 2 commands, 10 agents, 4 hooks, 2 MCP servers.

Wrote 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.

agentmods badge for cybersec

README.md
[![agentmods](https://agentmods.dev/badge/skills/florianbruniaux/ccboard/cybersec/github.svg)](https://agentmods.dev/skills/florianbruniaux/ccboard/cybersec)
Your own site
<a href="https://agentmods.dev/skills/florianbruniaux/ccboard/cybersec"><img src="https://agentmods.dev/badge/skills/florianbruniaux/ccboard/cybersec/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.

agentmods 80×15 button for cybersec

Your own site · 80×15
<a href="https://agentmods.dev/skills/florianbruniaux/ccboard/cybersec"><img src="https://agentmods.dev/badge/skills/florianbruniaux/ccboard/cybersec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 293 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00048 $0.00293
Opus 5 $0.00024 $0.00147
Sonnet 5 $0.00010 $0.00059
Haiku 4.5 $0.00005 $0.00029

Measured 9d ago against content hash 3a33b82712c9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

cybersec 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 9d 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.

.claude/skills/cybersec/SKILL.md · 37 lines

What it actually says

Cybersec Skills — ccboard

Security audit toolkit for the ccboard Rust/Leptos stack.

Reference files in this directory

These files are reference documentation for security test patterns. Update them to reflect ccboard's actual Axum routes, auth flows, and data model.

Key security areas for ccboard

  • Authentication: session tokens, CSRF protection in Leptos forms
  • Authorization: route-level guards in Axum middleware
  • WASM: client-side code exposure, sensitive data in WASM binary
  • SQL: raw query usage, input sanitization
  • Dependency audit: cargo audit for known CVEs in dependencies

Usage

cargo audit                         # CVE scan
grep -r "unsafe" src/               # unsafe block audit
grep -r "unwrap()" src/ | wc -l    # panic surface audit
Files

What ships with it

6 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.

Changes

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.

  1. 9d ago First seen · 37 lines · 48 tokens per session scan A 3a33b82712c9

Subscribe to this mod's changes

cybersec is a skill published in the GitHub repository FlorianBruniaux/ccboard (97 stars, last pushed 7d ago), licensed MIT. It adds 48 tokens to every session and 293 once invoked, about $0.0002 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.

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