From 4d2e6d817f65a13631f00786c45b403d7d7d58ec Mon Sep 17 00:00:00 2001 From: Adam Malczewski Date: Fri, 12 Jun 2026 18:26:00 +0900 Subject: feat(chat): chat limit — bulk quarter-unload, 75% fresh-load window, show-earlier page-in MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Long transcripts no longer grow unbounded: past the chat limit (default 256 chunks, localStorage dispatch.chatLimit) the oldest ceil(limit/4) committed chunks are unloaded in ONE bulk pass — never one-per-delta (old Dispatch's scroll-jump-per-step bug) — and only while the reader is stuck to the bottom (scrolled-up readers defer the trim; it catches up in whole quarters). A fresh page load windows to the newest floor(0.75*limit). Unloading is purely local (IndexedDB cache + server keep everything); a hiddenBeforeSeq watermark keeps history merges from resurrecting unloaded chunks, and a 'Show earlier messages' affordance pages a quarter back in from the cache with scroll-anchor preservation. Thinking-collapse render keys stay stable across trims via a hiddenThinkingCount ordinal base. - core/chunks/trim.ts: pure policy (trim/window/restore/normalize) + tests - chat store: chatLimit + canUnload deps, windowed load, showEarlier() - composition root: dispatch.chatLimit localStorage knob + unload gate wired to smart-scroll isAtBottom() - backend CR-5 OPENED (not a blocker): ?limit=/?beforeSeq= on GET /conversations/:id (courier backend-handoff-chat-limit.md) - scripts/live-probe.ts: fix pre-existing stale TurnMetricsEntry reads (m1.usage -> total.usage) that crashed the probe; 17/17 live checks pass --- src/core/chunks/index.ts | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'src/core/chunks/index.ts') diff --git a/src/core/chunks/index.ts b/src/core/chunks/index.ts index ecfee74..6ab0f35 100644 --- a/src/core/chunks/index.ts +++ b/src/core/chunks/index.ts @@ -8,6 +8,18 @@ export { initialState, } from "./reducer"; export { selectChunks, selectGenerating, selectMessages } from "./selectors"; +export { + DEFAULT_CHAT_LIMIT, + initialWindowSize, + MAX_CHAT_LIMIT, + MIN_CHAT_LIMIT, + normalizeChatLimit, + restoreEarlier, + selectHasEarlier, + trimTranscript, + unloadCount, + windowTranscript, +} from "./trim"; export type { AccumulatingChunk, ProvisionalChunk, -- cgit v1.2.3