AI Infrastructure Consulting
Agents that survive production.
Crashes, rolling deploys, provider outages, network partitions — long-running agents hit all of them. We build agent systems on durable execution runtimes so they resume instead of restart: every tool call, subagent, and model-written program recorded, retried, and replayed correctly.
Services
Durable Agent Infrastructure
Agent loops built on durable execution (Temporal). Tool calls as activities, subagents as child workflows, agent-authored programs stepping through deterministic interpreters — so a crash on step 73 resumes at step 73, not step 1.
Harness & Runtime Engineering
Programmatic tool calling, recursive subagent trees, sandboxed execution surfaces — from embedded interpreters to determinism-hardened V8 isolates. The primitives frontier harnesses are converging on, built into your stack.
Production Reliability
The unglamorous part that decides whether agents ship: failure taxonomies, retry and idempotency contracts, cancellation semantics, replay-correct state recovery, and test matrices that exercise all of it without burning model calls.
About
impacc builds durable agent runtimes — the layer where agent harnesses meet workflow engines. Recent work spans Temporal-backed agent loops in Python and TypeScript, deterministic interpreters for model-authored programs, and V8 isolate hardening for replay-correct execution. The name is a Meta inside joke — “impact,” said fast and often — and it’s still the only metric that matters.
- Workflows, not vibesLong-horizon agents are distributed systems. They deserve the same rigor: event histories, retry policies, deterministic replay.
- Boundaries matterOne opaque sandbox call swallows your durability guarantees. Granular activity boundaries preserve them. Getting this right is the work.
- Built, not theorizedEverything on this page comes from systems running in production — durable agent runtimes on Temporal, in Python and TypeScript.
Let’s talk
Building agents that need to run for hours, not seconds? Already shipped one that falls over in interesting ways? Either is a good first conversation.
hello@impacc.io