Tools & Dev Studio overview

Tools & Dev Studio is the workspace editor for reusable, versioned functions that Master Agent, Child Agent, and Tool nodes call during an Agent Graph run.

​

Create, attach, and pin tools

Use these workspace and Graph Studio surfaces at each stage of the tool lifecycle:

​

Golden path

1. Create a tool → implement in Dev Studio (Methods).
2. Define structure and test (Custom tools).
3. Publish a version.
4. Attach in Graph Studio → Save → Build.

​

Tool types

​

System tools

Mention each in the agent prompt when it should be called.

​

Test tools

Run tools in the Dev Studio Test tab before publish:

1. Enter sample input JSON for inputs.
2. Select Dev, UAT, or Prod so env_variables resolve correctly.
3. Review output and captured_variables.

Full procedure: Custom tools — Test.

​

Publish versions

Only published versions appear in Graph Studio and pin on Build. Draft → test → Publish with release notes → attach in Graph Studio. Unpublished tools show Publish in the Build dialog. Roll back by re-attaching a prior version. Full procedure: Custom tools — Publish.

​

Logs and debugging

After linking a tool to a graph:

• Session logs — runtime execution
• Variable capture logs — captured_variables from tools
• Common build failures — unpublished or misconfigured tools

​

Related

• Graph Studio — Tools tab
• Builds overview
• Configure integrations