24 lines
1015 B
Markdown
24 lines
1015 B
Markdown
## Why
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The canonical terminal-receipt requirement contradicts the fixed VGF1 grammar and every generated validator, so RC8 cannot provide an executable cross-language contract for gateway-owned terminal closure.
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## What Changes
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- Define client-direction VGF1 type `0x03` as an empty terminal receipt in the existing frame grammar.
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- Add fixed conformance vectors for valid receipt handling and invalid direction, body, truncation, length, and unknown-type cases.
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- Generate consistent Go, Rust, Swift, and Python validation behavior from the Protocol source.
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## Capabilities
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### New Capabilities
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None.
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### Modified Capabilities
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- `gateway-input-feedback`: Make the already-required terminal receipt executable and cross-language conformant without weakening other VGF1 validation.
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## Impact
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Protocol frame documentation, conformance fixtures, generators, generated bindings, native validator tools, and immutable Protocol consumers. RC8 remains unchanged and a new immutable Protocol version is required.
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