Building software
Build an agent that does multi-step work
Let a model call tools, loop and finish a task without a human in each step.
Best tools for this task
Every pick scored out of 10 on how accurate its output is, how fast it gets you a usable result, and how cheap it is to run. Reorder the list by whichever matters most.
Most accurate
Claude 9.4
Fastest to a result
Claude 9.5
Cheapest to run
Make 8.4
1. Make
Visual branching that non-developers can still follow.
- Accuracy
- 8.9/10
- Speed
- 8.1/10
- Cost
- 8.4/10
2. Claude
Reliable tool calling and instruction-following inside the loop.
- Accuracy
- 9.4/10
- Speed
- 9.5/10
- Cost
- 6.2/10
3. n8n
Native agent nodes, self-hosting and full visibility of each run.
- Accuracy
- 9.1/10
- Speed
- 7.1/10
- Cost
- 5.7/10
How to do it, step by step
- 1
Write the process as numbered steps a new hire could follow — that is your spec.
- 2
Give the agent the narrowest set of tools that can finish those steps.
- 3
Log every run and keep a human approval on anything that spends money or emails a customer.
What usually goes wrong
Agents fail quietly. Alerting on failed runs matters more than the happy path.