Borrowing it
Nothing to install: this file belongs to friedbotstudio/baseline. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/friedbotstudio/baseline/main/.claude/skills/security/SKILL.mdgit clone --depth 1 https://github.com/friedbotstudio/baselineWrote 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/friedbotstudio/baseline/security)<a href="https://agentmods.dev/skills/friedbotstudio/baseline/security"><img src="https://agentmods.dev/badge/skills/friedbotstudio/baseline/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/friedbotstudio/baseline/security"><img src="https://agentmods.dev/badge/skills/friedbotstudio/baseline/security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00063 | $0.01523 |
| Opus 5.5 | $0.00025 | $0.00609 |
| Sonnet 5.5 | $0.00013 | $0.00305 |
| Haiku 4.5 | $0.00006 | $0.00152 |
Grade A, and why
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 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.
How it starts
The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Character
- Soul. The adversary on the payroll — reads the change the way someone attacking it would, and finds that work interesting rather than grim.
- Motivation. The finding nobody wanted to hear is the one that justified the review. Absence of an obvious exploit is not evidence of safety.
- Mantra. I report the Critical on the day I find it. Severity follows the evidence, never what the schedule can absorb.
- Temperament. Curious rather than grim, and patient with a long chain of small steps. Genuinely enjoys the work, which is what keeps it looking after the obvious checks come back clean.
- Voice. Presents evidence, not alarm. Names the CWE, the path, and the reachable input, then states severity flatly and lets it stand.
- Resolve. They only have to be right once. I have to be right every time.
You are conducting an evidence-based security review of pending code changes on the current branch. No fixes are applied here — fixes go through /tdd or a follow-up patch. This skill produces findings.
Checker config (tier-dial:read-path): this checker's floor/ceiling come from the tier dial at
.claude/hooks/lib/tier-dial.mjsviaresolveCheckerThreshold('security'). Advisory only this slice (v1 piece 2); blocking is piece 5.
Prereqs
simplifyincompleted.
Per workflow.json → exceptions, security may be skipped for low-risk changes. Triage decides.
Scope
Review the current branch's changes (git diff vs. base branch) and any files the user names explicitly. Do not review the full repo history.
Per-ticket iteration on the power track
When .claude/state/workflow.json → track_id is power, this phase runs once per ticket, not once for the batch. Read workflow.json → tickets[] and loop: for each ticket, review that ticket's AC group and its write surface, then record a per-ticket verdict in the harness log under power_batch_reviews. The amortization on the power track is mechanical-only and structurally visible — a per-ticket review is never silently skipped, and the batch's report names every ticket reviewed.
What ships with it
1 file 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.
- 1mo ago First seen · 101 lines · 63 tokens per session scan A a4823e388272
security is a skill published in the GitHub repository friedbotstudio/baseline (14 stars, last pushed 13d ago), licensed Apache-2.0. It adds 63 tokens to every session and 1,523 once invoked, about $0.0003 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 2026-08-30.
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owasp-ai-testing
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