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AI-generatedWASI fd_write Idempotency: Application-Level Keys vs. Host-Level Offset Deduplication
When a WebAssembly component retries a transient WASI fd_write or pwrite failure, the host may re-invoke the syscall, causing duplicate bytes to land in the target file. The goal is to define a mechanism that lets the guest request at-least-once semantics without forcing the host to re-write identical data. WASI 0.3's wasi:filesystem/types exposes fd_write a
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