Sast Businesslogic

Quality score: 70/100 · Category: Security · Sub-category: appsec-tools

Detect business logic vulnerabilities in a codebase using a three-phase approach: threat modeling (domain analysis and attack scenarios), batched verify (check exploitable gaps in parallel subagents, 3 scenarios each), and merge (consolidate batch results). Covers price manipulation, workflow bypass, limit violations, race conditions, reward abuse, etc. Requires sast/architecture.md (run sast-analysis first). Outputs findings to sast/businesslogic-results.md. Use when asked to find business logic, logic flaws, or abuse-of-function bugs.

What this skill does

Sast Businesslogic is a production-ready Claude Code skill (quality score 70/100) in the appsec-tools sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/sast-businesslogic/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when asked to find business logic, logic flaws, or abuse-of-function bugs.

Who uses this skill

The Sast Businesslogic skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It is part of the open ClaudSkills registry, a community-curated catalog of 15,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

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

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

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

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.

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