* perf: optimize session loading and startup
* fix(chat): stabilize history prepend virtualization
* perf: unblock first session open from startup network contention
Opening the first session after app start waited seconds for its message
fetch. Three independent contributors, each measured via CDP network
capture and Chromium net-log against the packaged desktop app:
- The active-session watchdog fired an uncapped per-directory status poll
and child-session discovery burst at startup, and other subsystems
(git checks, global session pages, command/skill discovery) fanned out
alongside it, saturating the browser's ~6 HTTP/1.1 sockets per origin.
Add a shared background-network gate (concurrency 3) and route the
watchdog, poll-shaped git reads (also priority: low), global session
pages, command/skill loads, and the background update check through it.
- The packaged renderer is cross-origin to the loopback backend, so every
API call needs a CORS preflight; a few slow OpenCode-proxied requests
held the whole pool while preflights and interactive traffic queued
behind them. Lift Chromium's per-host connection cap for loopback via
ignore-connections-limit in the Electron shell.
- OpenCode initializes each directory lazily on its first request, so the
first click paid that cost interactively. Warm the last-used directory
and the three most recently opened projects right after OpenCode
readiness, sequentially and best-effort, overlapping UI startup.
Validation: new background-network tests, lifecycle warmup test, focused
store/sync tests, UI type-check and lint, dead-code report, node --check
plus electron type-check/lint, and CDP first-open measurements on the
packaged app (message fetch socket queue 5.4s -> 0.03s).
* fix(ui): keep interactive git reads out of background queue
---------
Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
Improve OpenChamber responsiveness under large session workloads while fixing
cache, synchronization, and persistence correctness across runtimes, projects,
directories, and worktrees.
- prioritize selected and visible sessions during bootstrap and defer
non-critical enrichment work
- reduce redundant message loading, event processing, store publication, and
hidden sidebar work
- prevent stale session and message requests from overwriting newer
authoritative state
- preserve existing data when authoritative fetches fail instead of treating
failures as successful empty responses
- scope session materialization, messages, drafts, queues, todos, pins,
permissions, folders, tabs, Git state, and pull request data by runtime and
directory identity
- harden runtime switching, reconnect, cleanup, mutation reconciliation, and
persisted-state ordering
- preserve live subagent Task linkage when metadata arrives after an older
message request or while streaming parts are suspended
- coalesce overlapping tail refreshes without losing newer refresh demand
- improve cold-session loading by moving deferrable work out of the critical
bootstrap path
- isolate URL authentication, mobile credentials, native secrets, and other
runtime-owned state across endpoint changes
- bound long-lived caches and remove avoidable allocations from event and
rendering hot paths
- limit virtualization to archive collections where it improves rendering
without disrupting active sidebar layout
- stabilize session folders, pin ordering, expanded state, and persisted
sidebar behavior
- open skill files through the same secure editor and outside-workspace grant
flow used by file navigation, including worktree sessions
- expand regression coverage for stale completions, runtime collisions,
reconnect behavior, persistence races, authoritative empty results, and
subagent refresh ordering
- document the updated synchronization, cache ownership, performance, and
runtime-isolation invariants
