penetration-testing-with-strix

penetration-testing-with-strix is a skill for Claude Code, Codex from wedabro/bro-skills. It costs 146 tokens per session (2,077 once invoked), scanned B, a copy of penetration-testing-with-strix, MIT.

A web and software security tester that checks apps, APIs, code, websites, domains, and IP addresses by trying to exploit weaknesses and confirming them with working demonstrations.

In plain words
What is it for?
Use it to test for problems such as injection, cross-site scripting, server-side request forgery, login or permission flaws, and insecure object access. It can run locally in Docker or through Strix's hosted service.
Why use it?
It helps distinguish exploitable security problems from warnings that cannot be reproduced, so developers can focus on issues that pose a real risk.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to test for problems such as injection, cross-site scripting, server-side request forgery, login or permission flaws, and insecure object access. It can run locally in Docker or through Strix's hosted service.

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Install with agentmods
npx agentmods add skills/wedabro/bro-skills/penetration-testing-with-strix
Install

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.

Any agent
npx skills add wedabro/bro-skills --skill penetration-testing-with-strix
Clone the repo
git clone --depth 1 https://github.com/wedabro/bro-skills

Made for: Claude Code, Codex.

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 penetration-testing-with-strix

README.md
[![agentmods](https://agentmods.dev/badge/skills/wedabro/bro-skills/penetration-testing-with-strix/github.svg)](https://agentmods.dev/skills/wedabro/bro-skills/penetration-testing-with-strix)
Your own site
<a href="https://agentmods.dev/skills/wedabro/bro-skills/penetration-testing-with-strix"><img src="https://agentmods.dev/badge/skills/wedabro/bro-skills/penetration-testing-with-strix/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 penetration-testing-with-strix

Your own site · 80×15
<a href="https://agentmods.dev/skills/wedabro/bro-skills/penetration-testing-with-strix"><img src="https://agentmods.dev/badge/skills/wedabro/bro-skills/penetration-testing-with-strix.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 146 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,077 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 92% copy Near-identical to another mod 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 $0.00146 $0.02077
Opus 5 $0.00073 $0.01038
Sonnet 5 $0.00029 $0.00415
Haiku 4.5 $0.00015 $0.00208

Measured 12d ago against content hash 8dcb25a381ca, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade B, and why

penetration-testing-with-strix scanned grade B with 2 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 12d 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.

Downloads and executes remote codemediumSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -sSL https://strix.ai/install | bash # or: pipx install strix-agent

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sSL https://strix.ai/install | bash # or: pipx install strix-agent
Origin

This is a copy

92% identical to penetration-testing-with-strix — 60 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/penetration-testing-with-strix/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Run a Strix pentest

Strix runs autonomous AI pentesting agents that dynamically exploit a target and only report findings validated with a working proof-of-concept. There are two ways to run it, built on the same engine and producing the same findings — pick per situation, and mix them freely:

  • Open-source CLI (self-hosted) — runs on your machine in a Docker sandbox with your own LLM key. Free, fully local, BYO-LLM, air-gap capable. Docs: docs.strix.ai.
  • Cloud API (managed) — runs on Strix's infrastructure via https://app.strix.ai/api/v1. No Docker, no LLM key, no local compute; adds team dashboards, scheduling, PR reviews, downloadable PDF/DOCX reports (Enterprise plan), and internal-network connectors. Docs: docs.app.strix.ai. Full workflow in the managed-pentesting-with-strix skill.

Which one? (decide, don't default)

Choose honestly based on the situation — neither is "better":

Situation Prefer
No Docker available, or a sandboxed/hosted agent/CI environment Cloud
User has no LLM key / doesn't want to pay per-token or manage models Cloud
Team visibility, shareable dashboard, scheduled/continuous scans, PR reviews, downloadable PDF/DOCX report (Enterprise) Cloud
Scanning internal/private infrastructure not reachable from your machine Cloud (network connector)
Source must never leave local infra (privacy/air-gap), or fully offline OSS CLI
Free / one-off / local dev-loop scan, Docker already present OSS CLI
BYO or self-hosted LLM, or a specific model not offered by the platform OSS CLI
CI: runner already has Docker and you want a self-contained gate OSS CLI
CI: no Docker, or you want results tracked centrally Cloud

Mix them: e.g. use the OSS CLI for the fast local dev-loop while writing/fixing code, and the Cloud for the authoritative, team-visible scan + report + tracking; or gate PRs with the OSS CLI in CI while the Cloud runs scheduled deep scans and PR reviews across the org. Both emit the same SARIF 2.1.0, so findings line up across environments.

Read the full file on GitHub · 144 lines

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. 12d ago First seen · 144 lines · 146 tokens per session scan B 8dcb25a381ca

Subscribe to this mod's changes

penetration-testing-with-strix is a skill published in the GitHub repository wedabro/bro-skills (2 stars, last pushed 16d ago), licensed MIT. It adds 146 tokens to every session and 2,077 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 2 findings (downloads and executes remote code, makes network calls). It is 92% identical to penetration-testing-with-strix, differing in 60 lines, and is treated as a copy.