Pre-register Hallucinated Package Names and Add Guardrails

Per the description, pre-register hallucinated package names and fill them with guardrails as concrete countermeasures. The description states these steps convert "the devastating spell becomes homework" into a routine task. It presents pre-registration plus guardrails as an operational approach to managing hallucinated package names.
Scoring Rationale
Tactical guidance on pre-registering and hardening package names addresses supply-chain and dependency risks; useful but narrowly scoped for practitioners.
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