Cost Summary A stable single-call interface that other plugins / scripts / dashboards can shell out to and parse. ADR-0002 considered exposing / as proper MCP tools but deferred that — adding MCP tools requires modifying source, out of scope for plugin-local work. This script is the equivalent: same data, exposed via a stdout JSON contract. When to use - Another plugin needs a snapshot of cost state — it shells out to and parses. - A dashboard / Slackbot fetches a one-line cost rollup. - Quick "where am I right now?" view that pulls from every cost-tracker source (cost-tracking + federation-s…