The credo work-item model, where the FOLDER an item file lives in is the single source of truth for its status, gated by a hard Definition of Done. Use whenever you create, update, or track a work item; whenever you decide whether something is "done" and may move to 2_done/; whenever you move an item between status folders (clarify, go, done, archived, parked); whenever new code might be unwired; or when someone asks where a task stands. This is the credo task system: .credo/items/ replaces ad-hoc task lists. Applies inside subagents too - if you build or complete work, record and gate it as an item.
$npx -y skills add marcel-bich/marcel-bich-claude-marketplace --skill itemsInstalls into the current project.
Run `npx skills use "https://github.com/marcel-bich/marcel-bich-claude-marketplace" --skill "marcel-bich/marcel-bich-claude-marketplace/items"` 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/marcel-bich/marcel-bich-claude-marketplace" that are relevant to the current task. Run `npx skills add "https://github.com/marcel-bich/marcel-bich-claude-marketplace"` and select the relevant skills, then follow their instructions.