Profiling AI Agents with Semantic Flamegraphs: Where Did the Budget Go? (opens in new tab)

Your AI agent spent $3000 this month. Which activities consumed that budget? agentpprof applies the flamegraph paradigm to AI agent traces, mapping natural language prompts to semantic tags and aggregating them like a CPU profiler. This post explains why existing observability tools fail at budget attribution and how semantic flamegraphs restore aggregation for agent workloads.