apps/opik-documentation/documentation/fern/docs-v2/development/overview.mdx
Opik provides a complete workflow for developing your agent: manage your prompt and model configuration with version control, test changes in the Agent Playground with full tracing, and deploy new versions directly from the UI.
Define your agent's system prompt, model, and parameters in the Prompt Library. Every change is versioned automatically (v1, v2, v3, …), so you can compare configurations side-by-side and roll back if needed.
Your agent pulls the requested prompt version at runtime, so you can update prompts without redeploying code.
Connect your local agent to Opik with a single command:
opik endpoint --project <project-name> -- python3 my_agent.py
Then run your agent from the Opik UI. Enter inputs, hit Run, and see the full result with traces — every LLM call, tool invocation, and sub-step captured in real time.
<Frame> </Frame>Switch to the Configuration tab to tweak prompts and parameters without changing code. The playground runs your agent against the unsaved configuration so you can test before committing changes.
When you're happy with a configuration, save it as a new version in the Prompt Library and
update your code to pin to it (or keep it on "latest"). Every change is versioned, so you can
always roll back.