One contract
Bounded, typed inputs. Explicit units. Missing assumptions fail visibly. The same functions serve the calculator, local playground and MCP transport.
Useful tools.
Traceable answers.
Calculate a scenario or find a source-backed explanation. The agent interface uses the same arithmetic as the visual calculators—not a model guessing the answer.
Calculate actual modeled grocery displacement, first-year cash and full economic cost. Explicit user inputs only; never infer yield or medical savings.
This playground makes no remote request. Inputs stay in this browser. Remote MCP requests are a separate client choice.
STRUCTURED, INSPECTABLE OUTPUT
No mystery math.
Choose a tool, inspect the sample inputs, then run it.
Read-only by design.
Evidence stays attached
Public topic search returns source links and limitations. Source-linked content is not a claim of independent expert review.
No surprise actions
No purchases, messages, private records, account creation or publishing. Draft creation and distribution remain separate capabilities.
The source package includes an MCP stdio server and an HTTP adapter. A deployed endpoint is documented only after hosted verification; this page is not a claim of ChatGPT or Claude app-store approval. No paid agent entitlement is active.