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FahrneticFahrnetic/engineering-agent-skill-workflow/skills/quality-wave2/phy-regex-audit/SKILL.md

phy-regex-audit

Skill2 starsChanged 5 months agoLicence not identifiedView on GitHub

Static ReDoS (Regular Expression Denial of Service) vulnerability scanner and regex quality auditor for codebases. Walks all source files to extract regex literals, detects catastrophic backtracking patterns (nested quantifiers, overlapping alternation, unbounded repetition on complex groups), severity-ranks each finding as CRITICAL/HIGH/MEDIUM, reports file and line number with the dangerous sub-pattern highlighted, identifies high-risk call sites (HTTP request handlers, form validators, URL parsers), and suggests safe rewrites using atomic groups or simplified alternatives. Also detects hardcoded locale assumptions (character classes assuming ASCII), overly permissive patterns, and regexes missing anchors. Supports JS/TS, Python, Go, Java, Ruby, PHP, Rust. Zero external API — pure static analysis. Triggers on "regex security", "ReDoS", "catastrophic backtracking", "regex audit", "slow regex", "regex vulnerability", "/regex-audit".

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