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fix(gui): tail history page carries the full-log todo projection

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The client's todos projection derived only from the paged display window,
so reopening a session whose last todo/write preceded the tail page showed
an empty plan until the user paged back — session-level state cannot be
reconstructed from an arbitrary window. The host owns the full log, so the
tail history response now attaches todos (latest todo/write backscan, the
same posture as the view pairing); installWindow seeds it, window rebuilds
preserve it, and any in-window or live write keeps overwriting it. The
fixture mirrors the host; docs and both Agent Notes record the mechanism.
This commit is contained in:
Chinesezjc
2026-07-23 16:40:48 +08:00
parent 356be9710a
commit 1687c2c15c
12 changed files with 107 additions and 21 deletions
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17
packages/host/runtime/src/api-proxy.ts
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@@ -8,7 +8,7 @@ import { mkdir, stat } from 'node:fs/promises'
import type { Context } from 'cordis'
import type { Agent, AgentStatus } from '@deepseek-ai/dsh-agent'
import type { ContentBlock, MessageSource } from '@deepseek-ai/dsh-llm'
import type { JsonValue, Session, SessionEvent, SessionHeader, SessionId } from '@deepseek-ai/dsh-session'
import type { JsonValue, Session, SessionEvent, SessionHeader, SessionId, TodoItem } from '@deepseek-ai/dsh-session'
import type { SessionPersistence } from '@deepseek-ai/dsh-session-persistence'
import { foldSessionTitle } from '@deepseek-ai/dsh-session-title'
import type {
@@ -265,6 +265,15 @@ function backscanArgs(events: readonly SessionEvent[], callId: string): { name:
return undefined
}
/** Current todo projection: the latest `todo/write` over the full log (whole-list replace ⇒ last write wins); undefined when none. */
function backscanTodos(events: readonly SessionEvent[]): TodoItem[] | undefined {
for (let i = events.length - 1; i >= 0; i--) {
const event = events[i]
if (event !== undefined && event.type === 'todo/write') return event.data.todos
}
return undefined
}
/**
* Thrown by the cold-resume path when the id names no servable session
* (absent from the store, or a pre-project legacy log without a cwd).
@@ -435,7 +444,11 @@ export function createApiProxy(ctx: Context, defaults: ApiProxyDefaults): ApiPro
const view = viewFor(ctx, event, callId => backscanArgs(page.events, callId))
return { event, ...view === undefined ? {} : { view } }
})
return ok(request, { events: entries, hasMore: page.hasMore })
// Tail page carries the session-level todo projection over the FULL
// log (the page window may not contain the last todo/write; a paged
// client cannot reconstruct session-level state from it).
const todos = beforeSeq === undefined ? backscanTodos(found.agent.session.events) : undefined
return ok(request, { events: entries, hasMore: page.hasMore, ...todos === undefined ? {} : { todos } })
},
async prompt(request) {