Security audit
Security checks for vulnerabilities and agentic risk
This is a documentation-only digital signal processing skill with minor usability and accuracy issues but no security-relevant behavior.
Before installing, consider whether Chinese-language documentation is acceptable and verify the filtering API behavior against the actual pywayne.dsp package documentation or source before relying on it for analysis results.
The file includes substantial end-user documentation in Chinese, and there is no indication that users can opt into another language or that the skill is intended only for a Chinese-speaking region or audience. This can violate language/locale policy when a skill effectively forces a language without user choice.
The method table states lfilter(self, x, zi=None) performs '零相位滤波' (zero-phase filtering) at L102, while filtfilt(self, x, padtype='odd') is also described as zero-phase filtering at L103. In signal processing, forward-only lfilter and forward-backward filtfilt are materially different behaviors, so these adjacent descriptions actively contradict each other about what lfilter does.
No suspicious patterns detected.
