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 georgekhananaev/claude-skills-vault --skill trailofbits-securitygit clone --depth 1 https://github.com/georgekhananaev/claude-skills-vaultWrote 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/georgekhananaev/claude-skills-vault/trailofbits-security)<a href="https://agentmods.dev/skills/georgekhananaev/claude-skills-vault/trailofbits-security"><img src="https://agentmods.dev/badge/skills/georgekhananaev/claude-skills-vault/trailofbits-security/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/georgekhananaev/claude-skills-vault/trailofbits-security"><img src="https://agentmods.dev/badge/skills/georgekhananaev/claude-skills-vault/trailofbits-security.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 | $0.00053 | $0.00399 |
| Opus 5 | $0.00026 | $0.00199 |
| Sonnet 5 | $0.00011 | $0.00080 |
| Haiku 4.5 | $0.00005 | $0.00040 |
Grade A, and why
trailofbits-security 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 7d 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
Trail of Bits Security Skills
Security-focused static analysis and code auditing toolkit from Trail of Bits.
Available Sub-Skills
| Skill | File | Use When |
|---|---|---|
| CodeQL Analysis | codeql-SKILL.md | Deep interprocedural taint tracking, data flow analysis |
| Semgrep Scanning | semgrep-SKILL.md | Fast pattern-based security scanning with parallel execution |
| SARIF Parsing | sarif-parsing-SKILL.md | Processing and aggregating static analysis results |
When to Use
- Security audit of a codebase -> Start with Semgrep for speed, then CodeQL for depth
- Quick vulnerability scan -> Semgrep with "important only" mode
- Deep data flow analysis -> CodeQL with custom data extensions
- Processing scan results -> SARIF parsing for aggregation, deduplication, CI/CD integration
Workflow
- Run Semgrep for fast initial scan (pattern-based)
- Run CodeQL for deep interprocedural analysis (data flow + taint tracking)
- Use SARIF parsing to aggregate, deduplicate, and prioritize findings
- Review and triage results by severity
Source
From trailofbits/skills - the static-analysis plugin.
What ships with it
3 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.
- 7d ago First seen · 39 lines · 53 tokens per session scan A 0937640fe76a
trailofbits-security is a skill published in the GitHub repository georgekhananaev/claude-skills-vault (28 stars, last pushed 1mo ago), licensed MIT. It adds 53 tokens to every session and 399 once invoked, about $0.0003 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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