dsh-tool-regex

In development and data processing, regex is a powerful text tool, but models or developers often face risks of errors and performance overhead when validating, matching, or replacing. This plugin aims to provide a deterministic, zero-dependency solution, avoiding the high error rate of 'mental calculation' for regex and replacing the cumbersome process of running scripts via external processes. It not only handles basic testing and extraction but also makes regex patterns readable and verifiable through its static explanation capability.

Its core abilities include four actions: test matching, finding all capture groups and named groups, safe replacement (supporting $ semantics), and unique static explanation—only parsing the pattern structure without executing matches, thus immunizing against ReDoS attacks. The security model employs multiple defense layers, such as worker hard timeouts, input length limits, and resource caps, ensuring stable operation even against malicious patterns.

This plugin is suitable for developers, AI application integrations, and regex operations in data pipelines that frequently process text. Whether validating user-provided patterns, extracting fields from logs, or performing safe text replacements, it offers a reliable and efficient tool, especially recommended for scenarios emphasizing security and performance.