2,200 Calls, $200 a Day, Zero Cost Attribution: Multi-Agent Run Accounting Has No Standard Answer

mrtrly · reddit · 2026-09-04

A developer running an orchestrator that fans out to many sub-agents hit a universal pain point: per-call logging is fine (model, tokens, cost), but with 2,200 calls/day totaling just under $200 across three interleaved workflows, there's no way to answer "what did this run cost?"

Without per-run attribution he can't tell a runaway fan-out from normal usage, so his defense is a hard budget cap and killing runs mid-flight — once killing legitimate work and burning the progress for nothing.

He asks how others handle it: tagging every call with a run id and rolling up manually, or off-the-shelf tooling — noting everyone building multi-agent systems hits this and no standard answer exists. A candid snapshot of the observability gap in agent engineering.

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