CWF knowledge repository providing plan structure, tasklist format, checkpoint definitions, amendment rules, and validation requirements. Load this skill when: (1) executing CWF commands like /write-plan, /implement-plan, /amend-plan, (2) answering questions about CWF workflow or plan/tasklist format, (3) validating plan or tasklist documents, (4) understanding phase structure or task conventions. This is KNOWLEDGE context, not an action - do NOT confuse with the /write-plan, /implement-plan, /amend-plan, or /brainstorm commands which are user-invoked.