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Browser-local submitted JSON

Tool-call interoperability workbench

Translate a strict tool definition and optional call through one canonical intermediate. Unsupported semantics remain explicit, output fixtures stay inert, and nothing is executed, transmitted, or retained.

Inert submitted JSON

Validate and translate one tool definition and optional call

Convert among OpenAI, Anthropic, MCP, and canonical Utilito shapes without executing a tool, contacting a provider, using the network, or storing input.

The preset is inert and is not converted automatically.
Source and target formats
Submitted inert fixturesSubmit exactly one definition in the selected source format.

Not converted. Choose or enter inert JSON, then convert explicitly.