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wit-contract-design

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UpdatedJuly 13, 2026 at 12:00

Design and evolve Plecto's `plecto:filter` WIT world and host-API surface — the type contract between the native fast path and untrusted WASM filters. Covers worlds/interfaces, resources, the decision variant, minimal-capability host-API slicing, header bytes (list<u8>), the filter / filter-body world split (header-only vs buffered body), versioning/compat with frozen v0.1/v0.2 load-time adapters, and the projected stream<u8> + wasm32-wasip2 migration.

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SKILL.md
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