Trace Every Side Effect Hiding in a Pure-Looking Function
Finds functions that look pure but secretly mutate state, hit I/O, or produce hidden effects.
The Prompt
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Map Every Side Effect Hidden Inside a Pure-Looking Function
Audit a module or file to surface every function that looks pure but secretly reads from or writes to shared state.
Claude Code: Map the Implicit State Machine in a Stateful Module
Forces Claude to extract the hidden state machine from imperative code before you refactor or extend it.
Find Every Async Function That Blocks on Synchronous I/O
Scan a codebase for async functions secretly doing sync I/O and explain the performance cost of each.
Cursor: Map the Blast Radius Before Any Risky Change
Force Cursor to trace every caller, side effect, and contract before touching a single line of code.