ECC Tools Cost Audit Use this skill when the user suspects the ECC Tools GitHub App is burning cost, over-creating PRs, bypassing usage limits, or routing free users into premium analysis paths. This is a focused operator workflow for the sibling ECC-Tools repo. It is not a generic billing skill and it is not a repo-wide code review pass. Skill Stack Pull these ECC-native skills into the workflow when relevant: - for bounded multi-step audits that cross webhooks, queues, billing, and retries - for tracing the request path into discrete, provable units - when repo behavior and customer-impact…