The build loop
Agent development works in a loop. Rasa provides you with a harness that allows you to accelerate that loop and if you’re ready for it - run it on autopilot.1. Install Maestro
Maestro ships in therasa-pro package. Install it into a fresh virtual
environment on Python 3.10 to 3.13:
Maestro is currently pre-release, so pin the exact version rather than letting
pip resolve the latest stable one.
2. Create a project
Runrasa init to start the setup wizard:
- Asks where to create your project
- Collects your keys and writes them to a
.env - Installs Cursor and Claude Code compatible skills
- Validates and trains your agent
- Opens the Inspector so you can chat with it immediately
memory.yml for cross-skill state, responses.yml for verbatim wording,
references/ for knowledge, and tools/ for tools shared between skills. See
Project structure for the full layout and which
files are required.
3. Set your environment variables
The wizard collects your keys and writes a.env. To change them later, edit it
directly:
.env
llm: block in
integrations.yml.
4. Connect your coding agent
If you created your project withrasa init, Claude Code and Cursor compatible
skills are already installed. Open the project in either tool and your coding
agent has the context it needs to build and iterate on Maestro skills.
For an existing project that wasn’t created with rasa init, install them
manually:
5. Build your first skill from a prompt
With the Copilot connected, describe the skill in plain language, or paste in real transcripts of the conversations you want it to handle:1
Describe it or paste transcripts
In your IDE chat, tell the Copilot what you want:Or paste a handful of real support transcripts and ask the Copilot to
turn them into a skill.
2
Let the Copilot scaffold the agent
The Copilot writes the
skill.md, any tools/, and wires up config. Review
the diff before accepting.skills/check_balance/skill.md
rasa train is the validation gate. Before packaging, it checks the whole
project for undeclared memory writes, unknown response names, and malformed
conditions. Treat its errors as authoring feedback and fix them before debugging
conversation behaviour.6. Evaluate with simulations
Rather than scripting every turn, let an LLM simulate a real user and score whether the agent met its goals. Ask the Copilot to generate and run a scenario:7. Test and inspect
Start your agent and open a browser window where you can talk to it directly:8. Loop
Feed what you learn back into the prompt: tighten the instructions, add a tool constraint, or add scoped instructions. Re-run the simulations, inspect again, and repeat until the agent behaves the way you need.What’s next
Skills
Understand the building block you just created.
Instructions
Write the prose that drives your skill.
Tools
Give your skill actions it can take.
Progressive Control
Add guarantees where mistakes are expensive.