The Hidden Layer Every AI Agent Runs On

Using product events to evaluate agent outcomes is far cheaper because signals like 'PR merged' or 'appointment booked' are low-cost ground-truth labels you can collect for every run and reserve expensive LLM judgment for only ambiguous cases.

Modeling agents as step functions fits naturally because agents loop through LLM calls and tool invocations and treating each interaction as a step preserves state, enables deterministic retries, and makes orchestration straightforward.

If many teams share the same workflow problem it is usually better to consume a specialized execution provider because building durable, high-throughput, observable orchestration demands scale expertise and heavy engineering that distract product teams from differentiation.

Collecting 100% coverage production traces plus product-signal labels lets teams train smaller domain-tuned models because that dataset provides ground-truth trajectories you can post-train on so cheaper models reproduce real product behavior in inference.

Most practical AI workflows will remain multi-step and looped because delivering correct, auditable results requires context, tool calls, conditional logic, and product feedback that a single one-shot answer cannot reliably provide without AGI.

Automated software factories only self-improve reliably when observability and deterministic logs exist because targeted fixes depend on precise error traces and replayable steps, while blind LLM probing is noisy, expensive, and unreliable for root-cause fixes.

Orchestrating ephemeral sandboxes from a central controller cuts costs and complexity because one external orchestrator can suspend, resume, and manage many lightweight sandboxes instead of paying for thousands of fully provisioned VMs and their RAM.

Keeping traces in the execution layer yields far more useful debugging context because those traces include timing, retries, and exact state, enabling deterministic replay and precise root cause analysis that detached trace stores miss.

Deterministic playback of step functions makes step-level A/B tests and localized rollouts safe because you can replay steps, change a single operation for a subset of users, and compare results without touching the rest of the system.

An SDK-first, lightweight orchestration layer lowers the barrier to shipping reliable AI workflows because it encodes step semantics so engineers get durability, observability, and portability from a few lines of code instead of wiring queues, servers, and Terraform.

Running large-scale deterministic step functions on public clouds becomes expensive because persisting large volumes of state and moving execution data drives heavy compute and egress charges that owned hardware can avoid.

Integrating observability into the execution layer speeds agent self-improvement because deterministic execution traces let you replay, compare, and reliably measure how changes to specific steps affect outcomes.