Individual skill
cost-federation
Consumer-side wiring for ADR-097 Phase 3 federation_spend events — per-peer rolling windows + suspension-threshold check
plugins/ruflo-cost-tracker/skills/cost-federation/SKILL.md
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# Cost Federation
ADR-097 Phase 3 specifies a `federation_spend` event bus that publishes one event per `federation_send` completion: `{peerId, taskId, tokensUsed, usdSpent, ts}`. Cost-tracker is the declared consumer — it aggregates per-peer rolling windows (1h / 24h / 7d) and the federation breaker queries that aggregate to suspend peers exceeding the configured threshold.
**Phase 3 isn't landed upstream yet.** This skill is the consumer-side wiring; it activates the moment upstream publishes events to the `federation-spend` namespace. Until then it reports cleanly with a "no events found" notice.
## When to use
- Before opening federation traffic to a new peer — establish baseline.
- Periodically (e.g. `/loop 5m`) to monitor per-peer spend across windows.
- After ADR-097 Phase 2/3 lands — to verify breaker suspension reasoning.
## Steps
