Skills

Fp Check

Systematically verifies suspected security bugs to eliminate false positives.

Install

npx skills add vigolium/vigolium --skill fp-check -g -a claude-code -y
Repository
vigolium/vigolium1.1k
Category
Security
Updated
10d ago
License
See repository
Context cost
Mediumabout 1,552 tokens
Runs scripts
No, instructions only

What it does

Systematically verifies suspected security bugs to eliminate false positives. Produces TRUE POSITIVE or FALSE POSITIVE verdicts with documented evidence for each bug.

False Positive Check

When to Use

  • "Is this bug real?" or "is this a true positive?"
  • "Is this a false positive?" or "verify this finding"
  • "Check if this vulnerability is exploitable"
  • Any request to verify or validate a specific suspected bug

When NOT to Use

  • Finding or hunting for bugs ("find bugs", "security analysis", "audit code")
  • General code review for style, performance, or maintainability
  • Feature development, refactoring, or non-security tasks
  • When the user explicitly asks for a quick scan without verification

Rationalizations to Reject

If you catch yourself thinking any of these, STOP.

RationalizationWhy It's WrongRequired Action
"Rapid analysis of remaining bugs"Every bug gets full verificationReturn to task list, verify next bug through all phases
"This pattern looks dangerous, so it's a vulnerability"Pattern recognition is not analysisComplete data flow tracing before any conclusion
"Skipping full verification for efficiency"No partial analysis allowedExecute all steps per the chosen verification path
"The code looks unsafe, reporting without tracing data flow"Unsafe-looking code may have upstream validationTrace the complete path from source to sink
"Similar code was vulnerable elsewhere"Each context has different validation, callers, and protectionsVerify this specific instance independently
"This is clearly critical"LLMs are biased toward seeing bugs and overrating severityComplete devil's advocate review; prove it with evidence

Step 0: Understand the Claim and Context

Before any analysis, restate the bug in your own words. If you cannot do this clearly, ask the user for clarification using AskUserQuestion. Half of false positives collapse at this step, the claim doesn't make coherent sense when restated precisely.

Document:

Read the whole SKILL.md on GitHub

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