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Fix chat history paging around tool updates (#1247)

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* Fix projected timeline paging

* Avoid full timeline fetches for plain pages
This commit is contained in:
Mohamed Boudra
2026-05-31 05:38:29 +00:00
committed by GitHub
parent 0e3eb9cf75
commit 3d96ea6354
18 changed files with 890 additions and 256 deletions
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packages/app/src/timeline/timeline-sync-plan.ts
+19 -19
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@@ -11,39 +11,39 @@ export interface AgentTimelineCursorRange {
endSeq: number;
}
export interface CanonicalTimelineTailFetchPlan {
export interface ProjectedTimelineTailFetchPlan {
direction: "tail";
limit: number;
projection: "canonical";
projection: "projected";
}
export interface CanonicalTimelineAfterFetchPlan {
export interface ProjectedTimelineAfterFetchPlan {
direction: "after";
cursor: TimelineSyncCursor;
limit: number;
projection: "canonical";
projection: "projected";
}
export interface CanonicalTimelineBeforeFetchPlan {
export interface ProjectedTimelineBeforeFetchPlan {
direction: "before";
cursor: TimelineSyncCursor;
limit: number;
projection: "canonical";
projection: "projected";
}
export type CanonicalTimelineFetchPlan =
| CanonicalTimelineTailFetchPlan
| CanonicalTimelineAfterFetchPlan
| CanonicalTimelineBeforeFetchPlan;
export type ProjectedTimelineFetchPlan =
| ProjectedTimelineTailFetchPlan
| ProjectedTimelineAfterFetchPlan
| ProjectedTimelineBeforeFetchPlan;
export type CanonicalTimelineForwardFetchPlan =
| CanonicalTimelineTailFetchPlan
| CanonicalTimelineAfterFetchPlan;
export type ProjectedTimelineForwardFetchPlan =
| ProjectedTimelineTailFetchPlan
| ProjectedTimelineAfterFetchPlan;
export function planInitialAgentTimelineSync(input: {
cursor: AgentTimelineCursorRange | undefined;
hasAuthoritativeHistory: boolean;
}): CanonicalTimelineForwardFetchPlan {
}): ProjectedTimelineForwardFetchPlan {
if (input.hasAuthoritativeHistory && input.cursor) {
return planTimelineCatchUpAfter({ epoch: input.cursor.epoch, seq: input.cursor.endSeq });
}
@@ -53,7 +53,7 @@ export function planInitialAgentTimelineSync(input: {
export function planResumeTimelineSync(input: {
cursor: AgentTimelineCursorRange | undefined;
}): CanonicalTimelineForwardFetchPlan {
}): ProjectedTimelineForwardFetchPlan {
if (input.cursor) {
return planTimelineCatchUpAfter({ epoch: input.cursor.epoch, seq: input.cursor.endSeq });
}
@@ -66,7 +66,7 @@ export function planTimelineCatchUpAfter(cursor: TimelineSyncCursor) {
direction: "after",
cursor,
limit: TIMELINE_FETCH_PAGE_SIZE,
projection: "canonical",
projection: "projected",
} as const;
}
@@ -74,7 +74,7 @@ export function planTimelineTailFetch() {
return {
direction: "tail",
limit: TIMELINE_FETCH_PAGE_SIZE,
projection: "canonical",
projection: "projected",
} as const;
}
@@ -83,7 +83,7 @@ export function planTimelineOlderFetch(cursor: TimelineSyncCursor) {
direction: "before",
cursor,
limit: TIMELINE_FETCH_PAGE_SIZE,
projection: "canonical",
projection: "projected",
} as const;
}
@@ -92,7 +92,7 @@ export function planTimelineCatchUpFollowUp(input: {
hasNewer: boolean;
endCursor: TimelineSyncCursor | null;
error: string | null;
}): CanonicalTimelineAfterFetchPlan | null {
}): ProjectedTimelineAfterFetchPlan | null {
if (input.error || input.direction !== "after" || !input.hasNewer || !input.endCursor) {
return null;
}