Tier, capabilities, limits, and live usage for the calling identity. Use this to decide what tools and fan-out paths are available before calling them, or to check remaining quota before issuing more requests — lower-tier agents can avoid wasted retries and decide whether to upgrade mid-conversation rather than discover limits by hitting walls. Visible to all tiers; takes no arguments. Returns a JSON document with: tier (free/solo/premium/team/company), capabilities (workflows, audit_ledger, include_premium_fanout — bool flags from ADR-026 §2 and ADR-032 §1), limits (max_concurrent_jobs, daily_quota — map tool→limit from ADR-028 §4, listing only tools your tier, scopes, and actor policy admit), usage_today (active_concurrent_calls, remaining_quota — map tool→remaining, both read live from the per-worker counters; team/company budgets pool per organisation, so seats of one org see a shared remaining number), workflow_discovery (present only when you can start a run — the three calls that take you from here to a running workflow: list_workflow_types for the live type ids, describe_capabilities for the catalog, start_workflow to begin; the type ids come from that call, never from this one), upgrade_url (empty for company tier, otherwise the marketing page that explains the next tier up), and service_notices — subsystems currently in a known degraded state, each naming the exact affected tools/add-ons and the reason those tools return, so an advertised capability that is temporarily down is never a surprise (empty list when everything is healthy). Counters reset at UTC midnight; per-worker semantics mean an N-worker gateway has roughly N× the per-worker limits in aggregate.