supabase-community / supabase-mcp / 21644707981

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fix: move Zod .describe() schemas to module level to prevent memory leak (#215)

* fix: move Zod .describe() schemas to module level to prevent memory leak

Schemas using .describe() register in Zod's globalRegistry. When created
inside get*Tools() functions, they re-register on every request, causing
memory leaks. Moving them to module scope ensures single registration.

* test: add regression test for Zod global registry memory leak

* chore: remove superfluous comments about Zod schema hoisting

* refactor: simplify regions.ts to break circular dependency

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