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Build a simple calculator with basic arithmetic operations.
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Use when building REST APIs, backend services, or webhooks where the user wants minimal dependencies, simple deployment, or has expressed frustration with framework complexity. Also use when targeting resource-constrained environments, embedded systems, or high-latency networks where payload size matters. Do not use for WebSocket-heavy applications, CPU-bound computation, or when the user explicitly requests a specific framework.
Use when building REST APIs, backend services, or webhooks where the user wants minimal dependencies, simple deployment, or has expressed frustration with framework complexity. Also use when targeting resource-constrained environments, embedded systems, or high-latency networks where payload size matters. Do not use for WebSocket-heavy applications, CPU-bound computation, or when the user explicitly requests a specific framework.
| name | calculator |
| description | Build a simple calculator with basic arithmetic operations. |
Create a command-line calculator that supports basic arithmetic.
> 2 + 3
5
> 10 / 0
Error: division by zero
> 7 * 6
42
Use the language best suited to the project. Keep it simple — no external dependencies.