Finding a skill that already exists

Look for a skill that already does the job before writing a new one — search the skill roots this harness actually resolves, then GitHub, then the web, rank what comes back, read the candidates in full, trial the promising ones on your own case, and decide between using, forking and creating fresh. Ships a runnable scout and a trial checklist. Use when about to create, build, fork or make any skill; when asked "is there a skill for X" or "does a skill already exist that does Y"; when a workflow, tool or procedure is about to be written and it is not certain that nobody has done it; when an external or marketplace skill is being considered for adoption; when a skill was co…