Traditional observability keeps all telemetry hot: pre-aggregated, pre-indexed, queryable at all times. That requires always-on indexing clusters, hot storage tiers, and provisioned query compute, with costs scaling linearly with ingest volume regardless of whether the data is ever read.

Foam writes raw telemetry to object storage at near-zero marginal cost. Monitoring agents watch for anomalies continuously. When one is detected, an investigation agent is allocated on-demand, retrieves the relevant traces, logs, and metrics from cold storage, traverses the call graph to isolate root cause, and releases on completion.

This reinvents both the architecture and the incentives. Costs are proportional to errors root caused, not telemetry volume. We only get paid when we deliver a root cause your team should act on.