find-security-vulnerabilities-in-code SKILL.md skillA

find-security-vulnerabilities-in-code from usestrix/strix is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add usestrix/strix/find-security-vulnerabilities-in-code@git:20260901.42baa7c

Pins git:20260901.42baa7c in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
usestrix/strix
Path
skills/find-security-vulnerabilities-in-code/SKILL.md
Versions recorded
3
Latest version
git:20260901.42baa7c, committed Sep 1, 2026
First version recorded
Aug 20, 2026
Size
4,386 bytes
Repository stars
74,096
License
Apache-2.0

Find security vulnerabilities in a codebase or repository with Strix — a white-box AI security review that reads your source, reasons about the actual data flow and authorization model, then exploits what it finds in a live sandbox so every reported issue has a working proof-of-concept instead of a noisy static-analysis alert. Covers injection, XSS, SSRF, broken access control and IDOR, insecure deserialization, secrets in code, unsafe dependencies, and business-logic flaws. Use when the user…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Find security vulnerabilities in code

White-box security review with Strix: the agents read the source to build a model of routes, sinks, and authorization checks, then attempt real exploitation. Findings come with a proof-of-concept, so the output is a short list of proven issues rather than the hundreds of "potential" hits a pattern-matching scanner produces.

Install, LLM setup, all flags, and the managed-cloud path are in the **penetration-testing-with-strix** skill. For a run with no Docker and no LLM key, the same binary drives the managed platform: `strix cloud login`, then `strix cloud scans start ...` (details in **managed-pentesting-with-strix**).

## Run it

```bash
# Local working tree
strix -n -t ./ --scan-mode standard --max-budget 15

# A GitHub repo directly
strix -n -t https://github.com/org/app --max-budget 15

# Monorepo: point at the service that matters, not the whole tree
strix -n -t ./services/checkout --max-budget 20

# Only what a branch changed (whole-repo review is wasteful on a large repo)
strix -n -t ./ --scope-mode diff --diff-base origin/main --max-budget 10
```
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add usestrix/strix/find-security-vulnerabilities-in-code@sha256:e7c25f1a0aea437d

The line at the top of this page pins the label git:20260901.42baa7c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_knycmbs5kbbog45j.svg)](https://markdownregistry.com/a/art_knycmbs5kbbog45j)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Aug 20, 2026 and Sep 1, 2026, about one every 6 days.

versioncommittedcommitsizeaudit
git:20260901.42baa7c latest2026-09-01 42baa7c 4,386 BA view · diff
git:20260820.90997102026-08-20 9099710 4,196 BA view · diff
git:20260820.b5ef93e2026-08-20 b5ef93e 3,914 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4386 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

usestrix/strix · 74,096 stars · license Apache-2.0 · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_knycmbs5kbbog45j
GET https://markdownregistry.com/api/v1/resolve?ref=usestrix/strix/find-security-vulnerabilities-in-code
GET https://markdownregistry.com/api/v1/blob/e7c25f1a0aea437d011d96dd306736b644597b07aa5a6dbc5588eefaab248e0a

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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