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fix(agent-loop): rematerialize adapter defaults

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Yichen Jiang
2026-07-30 21:49:58 +08:00
parent 95824545a6
commit 5fd34f9109
47 changed files with 348 additions and 100 deletions
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docs/core-data-structures/session.md
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@@ -144,7 +144,7 @@ interface TodoItem {
### The request header event: `request/header`
The request envelope — the `EpochHeader` (call config + rendered system prompt + assembled tool schemas) — is logged session state, so every conversation request is a pure function of the log (the reconstructability Agent Note). A full `request/header` snapshot with reason `'initial'` or `'resume'` records each loop-instance boundary; a later changed request records another full snapshot with reason `'change'`. `foldRequestHeader(events)` reconstructs the header by selecting the latest snapshot. The event is not a `SurfaceEventType`: it produces no LLM message.
The request envelope — the `EpochHeader` (call config + adapter-default provenance + rendered system prompt + assembled tool schemas) — is logged session state, so every conversation request is a pure function of the log (the reconstructability Agent Note). A full `request/header` snapshot with reason `'initial'` or `'resume'` records each loop-instance boundary; a later changed request records another full snapshot with reason `'change'`. `foldRequestHeader(events)` reconstructs the header by selecting the latest snapshot. The event is not a `SurfaceEventType`: it produces no LLM message.
```ts type-equiv
/**
@@ -155,6 +155,8 @@ The request envelope — the `EpochHeader` (call config + rendered system prompt
interface EpochHeader {
/** The conversation's call configuration (provider, model, reasoning effort, and sampling scalars). */
config: LlmCallConfig
/** Effective config fields materialized from the exact adapter rather than proposed by a caller. */
adapterDefaults?: LlmCallConfigAdapterDefaults
/** Rendered system prompt text; absent for a system-less request. */
system?: string
/** Assembled tool schemas; absent for a tool-less request. */