Faultmap vs Claude Agent SDK

The Claude Agent SDK gives you the runtime to build and run Claude agents. Faultmap maps where those agents will break before you write the first tool.

Side by side

Faultmapbefore the build

Claude Agent SDKafter the build

When it runs

Before the build, in the design phase

At the build — you define agent instructions, tools, and delegation rules, then run them

What it needs

Your goal, personas, data, and tools

An Anthropic API key, agent goal and instructions, tool definitions, and a workflow to implement

What it produces

A map of where it breaks, plus the first test suite

A running multi-agent system with parallel sub-agents, shared file access, and full execution audit logs

The question it answers

Where will this agent break, before I build it?

How do I build and orchestrate Claude-powered agents in production?

We do not replace Claude Agent SDK. Faultmap runs one step earlier. Keep using Claude Agent SDK after the build.

What Claude Agent SDK is

Claude Agent SDK in one sentence. Where Faultmap fits with it.

Anthropic's library for building production AI agents on the same harness that powers Claude Code. Gives agents tool use, bash and file system access, and multi-agent orchestration with a lead-agent and parallel sub-agent model, all auditable in Claude Console.

Agent builder framework

Where Faultmap fits before it

Run Faultmap in design to catch the breaks before you build.
Build the agent against the test suite Faultmap hands you.
Use Claude Agent SDK after launch for agent builder framework.

Map the breaks before Claude Agent SDK sees them.

Run a free Faultmap on your goal and your data. No card, no code.

Faultmap your agent, free