Verify Before Calling It Done
Force Claude Code to actually check its work — typecheck, run tests, hit the endpoint — instead of declaring victory and stopping.
The Prompt
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CLAUDE.md: Force Claude to Show Its Work Before Editing
A CLAUDE.md block that makes Claude Code state its plan, assumptions, and rollback path before any file change.
CLAUDE.md: Force a Cost Accounting Before Every Suggestion
A CLAUDE.md directive that makes Claude declare the runtime, maintenance, and cognitive cost of every change before proposing it.
CLAUDE.md: Make Claude Negotiate Scope Before Accepting Work
A CLAUDE.md rule block that forces Claude Code to push back on under-specified tasks instead of inventing scope.
CLAUDE.md: Enforce Explicit Null Handling Before Property Access
Configure Claude Code to reject any code that accesses object properties without first asserting the value exists.