ABI and host boundary
Platform spec area
ABI and host boundary
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publish at least one ADR or keep a ## Decisions summary on the hub.
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| Section id | Required | Found |
|---|---|---|
scope | yes | yes |
features | yes | yes |
Full tree: run pnpm verify:platform-spec-layout (writes src/generated/platform-spec-layout-report.json).
Scope
Builtin symbols, ABI contracts, and host integration boundaries consumed by runtime and backends.
Feature index
Use the tiles below for normative feature contracts in this area.
Features
- ABI versioning and compatibilityVersioned ABI guarantees, symbol stability rules, and migration expectations between compiler and runtime.
- Builtins and symbolsABI builtin function signatures, return kinds, and runtime export symbol compatibility.
- Extern dispatch and policyHow extern calls are declared, resolved, and constrained by runtime and host policy.