01 · Build
Build Agent
Scaffold and connect in minutes
Build Agent gets you from "I have a spec" to "I have a running agent" without YAML, glue code, or new infrastructure. It scaffolds the project, wires up your model provider, and connects to whatever telemetry stack you already use.
If you already have agents in production, Build Agent ingests your existing prompts, tools, and traces so the rest of Mutagent has full context from day one.
What it does
- One-command project scaffold from a Spec Agent spec
- Auto-detects prompts and tools in existing codebases
- Connects to Langfuse, LangSmith, Helicone, or raw OpenTelemetry
- No infra changes — works against your existing model provider
- Ships a typed SDK and a CLI for every supported framework
Inputs
- Spec Agent output or existing repo
- API keys for your model provider
- Telemetry endpoint
Outputs
- Working agent scaffold
- Telemetry pipeline configured
- Detected prompt registry
Works with
GitHub
GitLab
Langfuse
LangSmith
OpenTelemetryTry Build Agent today
Install the CLI and run this agent against your own evals in under five minutes.
Install the CLI