The Agent Skills Directory

[SAFE]: The skill provides utility scripts, check-dist.mjs and check-head.mjs, which perform automated audits of HTML and CSS files. These scripts use standard Node.js APIs (node:fs, node:path) to read build artifacts and assert that preloads, font-display settings, and cache headers are correctly configured.
[SAFE]: A network operation is identified in scripts/check-head.mjs using the global fetch API. This functionality is intended to allow developers to audit a live, booted web route (such as a local dev server) by fetching its HTML and analyzing the head content for performance regressions. The target URL is provided as a command-line argument by the user.
[SAFE]: The skill includes instructions for font subsetting and provides a configuration file (font-subset.config.mjs) to maintain consistent glyph coverage between the subsetter and the assertion scripts. The text extraction logic in check-dist.mjs includes standard HTML entity decoding to accurately measure glyph usage, which is a benign and necessary function for its stated purpose.
[SAFE]: Dependency analysis shows the use of the astro framework within evaluation fixtures, which is consistent with the skill's focus on modern web stacks like Astro, Vite, and SSR environments.

web-perf