Cline's system prompt includes a timestamp that may be recomputed per request, invalidating the system-prompt cache.
$npx -y skills add onlyterp/prompt-cache-skills --skill cline-pin-timestampInstalls into the current project.
Run `npx skills use "https://github.com/onlyterp/prompt-cache-skills" --skill "onlyterp/prompt-cache-skills/cline-pin-timestamp"` 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/onlyterp/prompt-cache-skills" that are relevant to the current task. Run `npx skills add "https://github.com/onlyterp/prompt-cache-skills"` and select the relevant skills, then follow their instructions.