Borrowing it
Nothing to install: this file belongs to fo0/clawstash. 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/fo0/clawstash/main/.claude/skills/basic-sec-review/SKILL.mdgit clone --depth 1 https://github.com/fo0/clawstashWrote 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/fo0/clawstash/basic-sec-review)<a href="https://agentmods.dev/skills/fo0/clawstash/basic-sec-review"><img src="https://agentmods.dev/badge/skills/fo0/clawstash/basic-sec-review/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/fo0/clawstash/basic-sec-review"><img src="https://agentmods.dev/badge/skills/fo0/clawstash/basic-sec-review.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 | $0.00084 | $0.01249 |
| Opus 5.5 | $0.00034 | $0.00500 |
| Sonnet 5.5 | $0.00017 | $0.00250 |
| Haiku 4.5 | $0.00008 | $0.00125 |
Grade A, and why
basic-sec-review 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 — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Security Review — Focused Vulnerability Audit
When to Use
- User says "/basic-sec-review", "security review", "audit for security", "check for vulnerabilities", "OWASP review"
- After implementing auth, payment, file-upload, deserialization, dynamic-code, or external-integration code
- Before merging high-risk PRs (auth, billing, admin endpoints, public APIs)
Scope Boundaries
Owns: the focused vulnerability audit of the current diff — the deeper pass the generic review's P0 Security category does not go into.
Does not own: general code quality (basic-review), dependency-bot PR handling (pr), and not live incident response or secret rotation — a leaked live credential is surfaced to the user immediately and is not this skill's to rotate.
Scope
Diff-based by default. Full-codebase only on explicit user request (/basic-sec-review --full or "audit the whole codebase").
Workflow
1. git status + git diff → identify changed files
2. Read CLAUDE.md *Coding Conventions* + *Environment Variables* (full list: `agent_docs/env-vars.md`) → understand trust boundaries
3. Read every changed file completely
4. Evaluate against the OWASP-focused checklist below
5. Run security-relevant automated checks (see Tooling)
6. Fix findings inline (prefer over defer; security debt compounds)
7. Output standard Security Review Results table
8. For NOT-fixed findings → BACKLOG.md with explicit Sev: P0/P1
Coverage — the current OWASP Top 10, category by category
Work the current OWASP Top 10 systematically from your own knowledge of it — one deliberate pass per category, in order, on the code in scope. The taxonomy is not restated here: a frozen copy of it in this file would pin the audit to an outdated edition. Two obligations make the coverage checkable:
- Every category gets a verdict. A category with nothing to report is
✅ Pass, not a silent omission. Coverage beats intuition — "looks fine" is not a pass. - Name the edition you worked from in the report footer (
OWASP Top 10 edition: <year>) and tag every finding with its category id. The report's OWASP / Area column indexes into that taxonomy, so the ids must be the ones the named edition actually uses.
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 · 95 lines · 84 tokens per session scan A ae6323eb3a18
basic-sec-review is a skill published in the GitHub repository fo0/clawstash (1 stars, last pushed today), licensed MIT. It adds 84 tokens to every session and 1,249 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 2026-09-24.
Other skills, from other repositories
release-pr-review
Review pass on an open release PR (release/ → main) — the step between git-wrapup and release-and-publish when a project releases in gated release PR mode. Reads the PR's commit range through the code-simplifier lens plus a correctness review, verifies whatever an automated reviewer left on the PR, lands fixes as…
code-simplifier
Cleanup pass that edits the working tree — over a session's uncommitted changes, or a named path or whole codebase. Reads git diff (or the named target) and simplifies, consolidates, and aligns code with the existing codebase — modernize syntax, cut unnecessary complexity and slop, consolidate duplicated logic, catch…
release-pr-review
Review pass on an open release PR (release/ → main) — the step between git-wrapup and release-and-publish when a project releases in gated release PR mode. Reads the PR's commit range through the code-simplifier lens plus a correctness review, verifies whatever an automated reviewer left on the PR, lands fixes as…
release-pr-review
Review pass on an open release PR (release/ → main) — the step between git-wrapup and release-and-publish when a project releases in gated release PR mode. Reads the PR's commit range through the code-simplifier lens plus a correctness review, verifies whatever an automated reviewer left on the PR, lands fixes as…
code-simplifier
Cleanup pass that edits the working tree — over a session's uncommitted changes, or a named path or whole codebase. Reads git diff (or the named target) and simplifies, consolidates, and aligns code with the existing codebase — modernize syntax, cut unnecessary complexity and slop, consolidate duplicated logic, catch…
release-pr-review
Review pass on an open release PR (release/ → main) — the step between git-wrapup and release-and-publish when a project releases in gated release PR mode. Reads the PR's commit range through the code-simplifier lens plus a correctness review, verifies whatever an automated reviewer left on the PR, lands fixes as…