Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.
$npx -y skills add mixpanel/mixpanel-headless --skill speckit-analyzeInstalls into the current project.
Run `npx skills use "https://github.com/mixpanel/mixpanel-headless" --skill "mixpanel/mixpanel-headless/speckit-analyze"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/mixpanel/mixpanel-headless" that are relevant to the current task. Run `npx skills add "https://github.com/mixpanel/mixpanel-headless"` and select the relevant skills, then follow their instructions.