Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
ClaudSkills / Security / web-security

Sast Idor

Category: Security  ·  Sub-category: web-security  ·  Last updated:
Detect Insecure Direct Object Reference (IDOR) vulnerabilities in a codebase using a three-phase approach: recon (find candidates), batched verify (check authorization in parallel subagents, 3 candidates each), and merge (consolidate batch results). Checks endpoints for missing ownership or authorization checks on user-supplied identifiers. Requires sast/architecture.md (run sast-analysis first). Outputs findings to sast/idor-results.md. Use when asked to find IDOR or authorization bypass bugs.

From the source SKILL.md

You are performing a focused security assessment to find IDOR vulnerabilities in a codebase. This skill uses a three-phase approach with subagents: recon (find candidate endpoints), batched verify (check authorization in parallel batches of 3), and merge (consolidate results).

What this skill does

Sast Idor is a community-contributed Claude Code skill in the web-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/sast-idor/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to find IDOR or authorization bypass bugs.

Who uses this skill

The Sast Idor Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/sast-idor
curl -L https://claudskills.com/skills/sast-idor/SKILL.md \
  -o ~/.claude/skills/sast-idor/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/sast-idor/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/sast-idor/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\sast-idor\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

Frequently asked questions

How do I install the Sast Idor Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/sast-idor/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Sast Idor skill do?
Detect Insecure Direct Object Reference (IDOR) vulnerabilities in a codebase using a three-phase approach: recon (find candidates), batched verify (check authorization in parallel subagents, 3 candidates each), and merge (consolidate batch results). Checks endpoints for missing ownership or authorization checks on user-supplied identifiers. Requires sast/architecture.md (run sast-analysis first). Outputs findings to sast/idor-results.md. Use when asked to find IDOR or authorization bypass bugs.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Sast Idor skill?
Use Sast Idor when your Claude Code task falls under the Security category — specifically in the web security area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Sast Idor" or describe the task and let Claude pick). Browse related skills at /category/security/.
What is a Claude Code skill and how does the Sast Idor skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Sast Idor is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
dahaliztupe-sketch. (2026). Sast Idor [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/sast-idor/
BibTeX
@misc{sast-idor-2026,
  author    = {dahaliztupe-sketch},
  title     = {Sast Idor [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/sast-idor/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge
[![ClaudSkills](https://claudskills.com/badge/sast-idor.svg)](https://claudskills.com/skills/sast-idor/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/sast-idor.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/sast-idor.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Sast Idor"></iframe>

Free. No spam. Unsubscribe in one click.

More Security skills

Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Security skills → Top 100 skills
Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore