error-pattern-safety

JavaScript regex infinite loops occur when patterns allow zero-width matches, causing the engine to match the same empty string without advancing. This Skill provides safety guidelines to prevent these dangerous patterns during error processing.

To write safe regex patterns in JavaScript, you must enforce specific pattern requirements and validate them against empty strings and real log samples. This Skill provides rules, examples, and validation tests for constructing safe error-matching patterns.

A zero-width match occurs when a regular expression matches an empty string without consuming characters, leading to infinite loops and system hangs. This Skill identifies and prevents such patterns to ensure agentic system stability.

Yes, you can prevent system hangs by testing regular expressions against empty strings and real log samples. This Skill requires validation tests to ensure chosen error-detection patterns are robust and will not cause performance degradation.

Regex limitations in agentic systems include the risk of infinite loops from zero-width matches and performance degradation from unsafe patterns. This Skill mitigates these constraints by enforcing strict construction rules for error detection logic.