Ramnique Singh 3822bf53da feat(x): reference-based model requests + wire-form composer ... model_call_requested carried three duplications that dominated turn-file size (measured on a real 647KB two-step turn): the system prompt (28KB) and the 38-tool snapshot (40KB) repeated per call despite being byte- identical to turn_created.agent.resolved, and messages re-inlining the whole current-turn transcript (230KB re-stating a 207KB tool result). ModelRequest is now a list of references into the turn's own events — call 0: [{context}?, {input}]; call N: [{assistant: N-1}, ...that batch's toolResults in source order]; re-issue after an interruption: []. Every referenced byte exists exactly once in the file; the measured turn drops to ~285KB and each further model call costs ~200 bytes. The reducer's ordering invariant got stricter: reference lists are matched exactly against the transcript. Debuggability is now byte-for-byte at the wire level: ResolvedModel gains encodeMessages (the structural->wire conversion — user-message context weaving, attachment rendering, tool-result enveloping, i.e. convertFromMessages), and composeModelRequest rebuilds the exact provider payload (resolved system prompt + wrapped tools + materialized prefix + resolved refs, encoded). The loop transmits exactly the composer's output, so the durable file plus the composer reproduce what the model received — pinned by a property test asserting composed == sent for every call, and a 2KB size guard on request events. A bridge test demonstrates the woven wire form (no raw userMessageContext). Breaking for existing dev turn files (same schemaVersion, pre-release): wipe ~/.rowboat/storage. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>		2026-07-02 14:20:44 +05:30
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session-design.md	docs(x): turn runtime + session layer design specs	2026-07-02 14:20:44 +05:30
turn-runtime-design.md	feat(x): reference-based model requests + wire-form composer	2026-07-02 14:20:44 +05:30