Change Function Declaration

A function whose name or signature doesn't match its behavior; the agent inferring intent from the call site gets misled and must read the body to verify.

Names and signatures express what the function does; the agent reasons about call sites from the signature alone.

The agent must read the function body to verify call-site intent; chained edits compound the cost as the agent re-derives intent at every site.

Every caller pays for the change at once; for cross-team consumers, the agent must coordinate updates or risk breaking external code.

The signature carries the contract the agent reads at every call site; arguments that violate the contract become type errors at compile time instead of runtime mismatches generated against the old signature.

Reshaping signatures across team boundaries without coordination forces other consumers to rebuild — the agent shipping the change may not see the downstream breakage.