Problems / Agents and tools, easy

Agent memory on a small store

The agent reads and writes long-term memory every step, on a memory store with 2 slots and 60 ms per call.

Free to open. Runs in your browser, no sign-up.

Your goals

Success ≥ 95% of tasks, p99 ≤ 90 s.

The traffic

8 requests a second for 45 seconds: 100% task (writes).

The system

What each component does in this design, and what calls it. The simulator mimics each one from these settings.

ComponentIts job hereSettings
Load balancerLoad balancerTraffic enters here.Calls Agent API.Layer 4 balancers route by IP and port; layer 7 balancers read HTTP and can route by path or header.–
Agent APIApp serviceLoad balancer forwards to it.Calls Agent orchestrator.Little's law: throughput ≈ concurrency ÷ latency. 200 slots at 50 ms serve about 4,000 req/s.3 replicas × 500 slots · timeout 180 s
Agent orchestratorAgent orchestratorAgent API calls it.Calls Model, Agent memory.An agent loops: think, call a tool, read the result, repeat until done.400 slots · 6 steps
ModelLLM endpointAgent orchestrator calls it.Latency has two parts: time to the first token, then a steady stream of tokens per second.300 streams
Agent memoryAgent memory storeAgent orchestrator calls it.Agent memory keeps facts across sessions so the agent does not start from scratch.2 slots

Hints

Try it first. Open one hint at a time if you get stuck.

Hint 1

Memory calls a second = tasks × steps.

Hint 2

Agent work multiplies: tasks a second × steps per task = calls a second on every tool the loop uses.

One way to solve it

Give the memory store more capacity.

More agents and tools problems