* Reapply "perf(issues): virtualize inbox/list/board/swimlane (MUL-4474, 方案2) (#…" (#5395)
This reverts commit c10bfa8f56.
Co-authored-by: multica-agent <github@multica.ai>
* fix(issues): seed virtualized lists so route-return doesn't flash blank (MUL-4750)
The relanded MUL-4474 virtualization flashed an empty card area (group /
column headers present, rows blank) when returning to /issues or crossing
inbox<->issues. Two stacked blank windows caused it:
1. The scroll element reaches Virtuoso via a callback ref that lands in
state, so the first render after a remount has customScrollParent === null
and the code rendered nothing.
2. Even once mounted, Virtuoso renders 0 rows until its post-paint
ResizeObserver measures the viewport.
Fix both, four surfaces (list / board / swimlane / inbox):
- New shared <VirtuosoSeed> renders a bounded slice of the real rows while the
scroll parent is still null, reusing each caller's own itemContent /
computeItemKey so a seeded row is identical to its virtualized counterpart.
- Pass initialItemCount={Math.min(len, SEED)} so the measurement frame keeps
those rows instead of collapsing to empty.
SEED is capped at 30 and floored by Math.min, so small workspaces
(hasMore=false) and short columns never over-mount — the path that crashed on
real Desktop before. restoreStateFrom (tab-switch Activity restore) is
intentionally out of scope for this round.
Verified: @multica/views tsc --noEmit, eslint, and full vitest (1936 tests)
pass. Real-Desktop route-return / DnD / keyboard / scroll-position regression
pass still owed on device.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>
* perf(issues): defer per-card popup mounting, share one context menu per surface
Tab-switching to a board froze the main thread for seconds: every card
eagerly mounted ~6 popup roots (context menu, pickers, hover cards) plus
per-card query subscriptions, multiplied by seed x columns x remount.
- DeferredPopup: pickers render a pixel-identical static trigger and mount
the real popover on first pointerenter/keydown (Base UI opens on click,
so the warm mount always wins the race)
- AssigneePicker/PriorityPicker/DateOnlyPicker defer when uncontrolled;
AssigneePicker's members/agents/squads/frequency subscriptions now only
start on interaction
- IssueActionsContextMenu: one controlled ContextMenu per surface anchored
at the cursor via a virtual anchor; items delegate (issue, position) up.
Known debt: iOS Safari long-press no longer opens it
- ActorAvatar hover cards warm-mount on pointerenter with a manual
first-dwell timer matching Base UI's OPEN_DELAY
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(issues): stabilize board column scrollbar across mounts
Column scrollbars redrew visibly on every surface mount (route switches,
first open): the seed frame's scroll height covered only the seeded cards,
then Virtuoso spaced out the full count.
- VirtuosoSeed: optional estimatedItemHeight renders a trailing spacer so
the seed frame's scroll height already approximates the full list
- Board columns: seed capped at 10 (one column viewport of ~110px cards,
not the 36px-row-sized generic 30) and the same estimate feeds Virtuoso's
defaultItemHeight so both phases agree until real measurements land
- Columns at <=30 cards skip virtualization entirely and render plainly
(same itemContent), making their scroll height browser-measured truth in
every scenario -- the per-column split Linear ships
(data-virtual-cluster=false for small clusters)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* perf(editor): reduce issue detail mount cost
Parse long Markdown in smaller chunks without the duplicate initial sync, defer title and empty composer editors until intent, and keep the description editor eager to avoid layout shifts.
* chore(desktop): add navigation boundary lint rule (MUL-4741 Phase 2 prereq)
The tab Coordinator protocol requires that application code never
navigates directly (invariant 1: a Router location change without a
Coordinator token is a protocol error). Enforce it statically:
- renderer app code may not import useNavigate/Navigate from
react-router-dom nor call router.navigate; src/platform is exempt
- the five known legacy sites (the RFC §8.1 migration checklist,
cross-validated: the rule fires on exactly those and nothing else)
carry inline eslint-disable directives tagged MUL-4741 — the Phase 2
migration removes them one by one, and this rule holding with zero
disables is the machine check that the migration is complete
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(views): open deferred pickers on click, align triggerRender types
Pointerenter warm-mounting swapped the trigger element mid-gesture: real
browsers re-hit-test so the click lands on the new trigger, but synthetic
pointer sequences (tests, assistive tech) keep dispatching on the detached
node and the first click dies. Upgrade now happens on click/Enter/Space
only — the same timing as Base UI's own trigger — with the in-flight click
stopped so the popup's just-mounted outside-press dismissal doesn't close
it in the same breath.
Also widen triggerRender to ReactElement<Record<string, unknown>> (React
19 defaults ReactElement props to unknown) and mount the
IssueContextMenuProvider in the swimlane test harness like IssueSurface
does in production.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* refactor(desktop): single-router tab sessions with Coordinator protocol (MUL-4741 Phase 2)
Replace the per-tab-router + <Activity> keep-alive model with the approved
single-router session architecture:
- TabSession: tabs are pure serializable state (url, resourceKey, virtual
history stack, scroll memento). Persist v4 does the one-time legacy
view-state import from v3; mountGeneration is deliberately unpersisted.
- Coordinator (platform/tab-coordinator.ts) is the only router writer: it
reconciles THE app router to the active session URL with navigation
tokens; a location change without a token is a protocol error handled by
bounded recovery (invariant 1). The router history is never used — every
reconcile is a replace; back/forward are session-stack operations.
- ActiveTabHost mounts exactly one tab, keyed on tabId:mountGeneration.
reload() = generation bump + active-scope query invalidation (never
router.revalidate, never a global cache invalidation). Warm switches
restore scroll pre-paint; cold restores pre-size containers from the
memento's saved scrollHeight and settle when data lands.
- resourceKey dedup (pathname only) replaces exact-path dedup: opening
/slug/issues?filter=b focuses the existing issues tab (RFC §8.2,
deliberate semantic change).
- All five §8.1 legacy navigation sites migrated (index <Navigate>, error
page recovery, workspace-layout login bounce, overlay parking, shell
back/forward); their MUL-4741 ratchet eslint-disables are removed, so the
navigation boundary rule now holds with zero exemptions outside
src/platform.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(issues): register board columns and list scroller for scroll mementos
Per-container scroll registration for the MUL-4741 tab session memento:
board columns key by group id (each column's offset restores
independently, the per-column split Linear ships), the list view keys as
"list". Chat and issue-detail already carry the marker.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat(tabs): pull-based scroll restoration fed into virtualized lists (MUL-4741)
Rebuild the restore side of the memento protocol on first principles (the
model Linear ships): a saved offset is an INPUT to the mounting view, not a
post-hoc DOM mutation from outside.
- ScrollRestorationProvider (views/platform): views pull their saved offset
while mounting. Virtualized lists feed it into Virtuoso's initialScrollTop
so the first render already materializes the rows around it — this
replaces the pushed spacer+scrollTop hook, whose foreign spacer deadlocked
against Virtuoso's own height model (restore landed the viewport in
phantom space, Virtuoso rendered nothing, and the spacer's removal
condition could never be met → blank issue detail). Plain containers
assign the offset at ref-attach, pre-paint. Web has no provider and
behaves as before.
- Memento keys gain a route dimension (`${pathname}::${containerKey}`) and
capture now also fires before in-tab navigation, so back/forward restores
each route's own offsets and same-named containers on different routes
no longer collide.
- commitScrollMemento uses REPLACE-per-route semantics: a container
scrolled back to 0 clears its stale offset instead of resurrecting the
old position on the next visit.
- List view gets the same estimate alignment as the board (36px rows into
the seed spacer and defaultItemHeight), which keeps the shared scroller's
height truthful from the first frame so the restored offset sticks.
Known gap: chat's bottom-anchored list captures offsets but has no restore
consumer — intentional, it re-anchors to bottom on mount.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* perf(editor): make unlabelled code fences plaintext instead of auto-detected
Follow-up to the issue-detail mount work: lowlight's highlightAuto runs
every registered grammar over the full block for code fences without a
language, which dominated mount cost on code-heavy comments. Extract a
shared syntax-highlight module whose auto fallback deterministically
renders plaintext; explicitly labelled languages highlight as before.
Also ignore .gstack/.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* perf(issues): lazy-mount column-header popups, right-size swimlane seed
Trace analysis of tab/view switching (30s session): a swimlane mount spent
its largest slice on eagerly-mounted header machinery — ~170 tooltip roots
(one per lane x status cell add-button), 13 column dropdown-menus, and up
to 30 fully-materialized lanes from the generic seed count.
- DeferredTooltip (views/common): renders only the trigger until first
hover, then mounts a controlled Tooltip anchored to the SAME element
(no trigger swap, so mid-gesture events never land on a detached node);
ui TooltipContent grows an `anchor` passthrough for it.
- Board/list/swimlane header add-buttons and hide-column dropdowns now
defer via DeferredTooltip / DeferredPopup (which gains an ariaHasPopup
option for menu triggers).
- Swimlane lane seed drops 30 -> 6 (a lane row is ~300px+; a viewport fits
~3) on both the pre-scroll seed and Virtuoso's initialItemCount.
- openTab gains an `activate` option so "open and focus" paths (pinned-tab
redirect, explicit open-in-new-tab) are ONE store write instead of
openTab + setActiveTab back-to-back — one full subscriber pass per user
action instead of two.
- Dev-only breadcrumb logs IssueSurfaceContent's remount key: the trace
showed the surface mounting twice inside one task, and the my-issues
relation toggle is one confirmed key-flip source; the log ties the next
trace's mounts to exact key transitions.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* perf(issues): stop double full-tree render passes on surface interactions
Trace forensics on view switching showed every interaction paying TWO full
surface render passes (React's own Cascading Update marker sits between
them): entering swimlane flips controller-level loading state (loadProjects
enables the projects query), and any such flag flip re-rendered the entire
unmemoized view tree (~600-1000ms dev per pass).
- Memoize BoardView / ListView / SwimLaneView: controller/data outputs are
already useMemo/useCallback-stable, so a controller flag flip now
re-renders the header, not the whole board. The one unstable prop —
BoardView's inline assigneeGroups.flatMap — moves into a useMemo.
- Selection reset on mount swapped the initial empty Set for a NEW empty
Set, buying a guaranteed extra full pass per surface mount; functional
bail keeps the reference when nothing was selected.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* perf(ui): drive sidebar resize by direct DOM writes, drop motion/react
Trace analysis showed sidebar motion.div mounts costing ~1s across a
session. Width previews during drag now write straight to the two layout
shells (CSS disables their transitions while data-sidebar-resizing is set);
React only sees the single committed width on pointer-up, and framer-motion
leaves the sidebar entirely.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix(issues): wire swimlane's outer scroller into tab scroll restoration
Review blocker on #5403: board/list/issue-detail register their scroll
containers with the tab session memento protocol, but the swimlane outer
scroller did not — under the single-router architecture an inactive tab
unmounts, so a deep-scrolled swimlane returned at top after a tab switch
or reload.
Same wiring as the other surfaces: data-tab-scroll-root="swimlane" for
capture, useRestoredScrollRef in the scroller's attach callback for the
pre-paint assignment, and the saved offset into the lane Virtuoso's
initialScrollTop. Regression test asserts both the capture marker and the
restored offset.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---------
Co-authored-by: multica-agent <github@multica.ai>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Multica
Your next 10 hires won't be human.
The open-source managed agents platform.
Turn coding agents into real teammates — assign tasks, track progress, compound skills.
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What is Multica?
Multica turns coding agents into real teammates. Assign issues to an agent like you'd assign to a colleague — they'll pick up the work, write code, report blockers, and update statuses autonomously.
No more copy-pasting prompts. No more babysitting runs. Your agents show up on the board, participate in conversations, and compound reusable skills over time. Think of it as open-source infrastructure for managed agents — vendor-neutral, self-hosted, and designed for human + AI teams. Works with Claude Code, Codex, CodeBuddy, GitHub Copilot CLI, OpenCode, OpenClaw, Hermes, Pi, Cursor Agent, Kimi, Kiro CLI, Antigravity, Qoder CLI, and Trae CLI.
For larger teams, Squads add a stable routing layer: assign work to a group led by an agent, and the leader delegates to the right member.
Why "Multica"?
Multica — Multiplexed Information and Computing Agent.
The name is a nod to Multics, the pioneering operating system of the 1960s that introduced time-sharing — letting multiple users share a single machine as if each had it to themselves. Unix was born as a deliberate simplification of Multics: one user, one task, one elegant philosophy.
We think the same inflection is happening again. For decades, software teams have been single-threaded — one engineer, one task, one context switch at a time. AI agents change that equation. Multica brings time-sharing back, but for an era where the "users" multiplexing the system are both humans and autonomous agents.
In Multica, agents are first-class teammates. They get assigned issues, report progress, raise blockers, and ship code — just like their human colleagues. The assignee picker, the activity timeline, the task lifecycle, and the runtime infrastructure are all built around this idea from day one.
Like Multics before it, the bet is on multiplexing: a small team shouldn't feel small. With the right system, two engineers and a fleet of agents can move like twenty.
Features
Multica manages the full agent lifecycle: from task assignment to execution monitoring to skill reuse.
- Agents as Teammates — assign to an agent like you'd assign to a colleague. They have profiles, show up on the board, post comments, create issues, and report blockers proactively.
- Squads — group agents (and humans) under a leader agent and assign work to the squad. The leader decides who should pick it up, so routing stays stable as the team grows.
@FrontendTeaminstead of@alice-or-bob-or-carol. - Autonomous Execution — set it and forget it. Full task lifecycle management (enqueue, claim, start, complete/fail) with real-time progress streaming via WebSocket.
- Autopilots — schedule recurring work for agents. Cron triggers, webhooks, or manual runs — each autopilot creates the issue and routes it to an agent automatically, so daily standups, weekly reports, and periodic audits run themselves.
- Reusable Skills — every solution becomes a reusable skill for the whole team. Deployments, migrations, code reviews — skills compound your team's capabilities over time.
- Unified Runtimes — one dashboard for all your compute. Local daemons and cloud runtimes, auto-detection of available CLIs, real-time monitoring.
- Multi-Workspace — organize work across teams with workspace-level isolation. Each workspace has its own agents, issues, and settings.
Quick Install
macOS / Linux (Homebrew - recommended)
brew install multica-ai/tap/multica
Use brew upgrade multica-ai/tap/multica to keep the CLI current.
macOS / Linux (install script)
curl -fsSL https://raw.githubusercontent.com/multica-ai/multica/main/scripts/install.sh | bash
Use this if Homebrew is not available. The script installs the Multica CLI on macOS and Linux by using Homebrew when it is on PATH, otherwise it downloads the binary directly.
Windows (PowerShell)
irm https://raw.githubusercontent.com/multica-ai/multica/main/scripts/install.ps1 | iex
Then configure, authenticate, and start the daemon in one command:
multica setup # Connect to Multica Cloud, log in, start daemon
Self-hosting? Add
--with-serverto deploy a full Multica server on your machine:curl -fsSL https://raw.githubusercontent.com/multica-ai/multica/main/scripts/install.sh | bash -s -- --with-server multica setup self-hostThis pulls the official Multica images from GHCR (latest stable by default). Requires Docker. See the Self-Hosting Guide for details. If the selected GHCR tag has not been published yet, fall back to
make selfhost-buildfrom a checkout.
Getting Started
1. Set up and start the daemon
multica setup # Configure, authenticate, and start the daemon
The daemon runs in the background and auto-detects agent CLIs (claude, codex, codebuddy, copilot, opencode, openclaw, hermes, pi, cursor-agent, kimi, kiro-cli, agy, qodercli, traecli) on your PATH.
2. Verify your runtime
Open your workspace in the Multica web app. Navigate to Settings → Runtimes — you should see your machine listed as an active Runtime.
What is a Runtime? A Runtime is a compute environment that can execute agent tasks. It can be your local machine (via the daemon) or a cloud instance. Each runtime reports which agent CLIs are available, so Multica knows where to route work.
3. Create an agent
Go to Settings → Agents and click New Agent. Pick the runtime you just connected and choose a provider (Claude Code, Codex, CodeBuddy, GitHub Copilot CLI, OpenCode, OpenClaw, Hermes, Pi, Cursor Agent, Kimi, Kiro CLI, Antigravity, Qoder CLI, or Trae CLI). Give your agent a name — this is how it will appear on the board, in comments, and in assignments.
4. Assign your first task
Create an issue from the board (or via multica issue create), then assign it to your new agent. The agent will automatically pick up the task, execute it on your runtime, and report progress — just like a human teammate.
CLI
The multica CLI connects your local machine to Multica — authenticate, manage workspaces, and run the agent daemon.
| Command | Description |
|---|---|
multica login |
Authenticate (opens browser) |
multica daemon start |
Start the local agent runtime |
multica daemon status |
Check daemon status |
multica setup |
One-command setup for Multica Cloud (configure + login + start daemon) |
multica setup self-host |
Same, but for self-hosted deployments |
multica workspace list |
List your workspaces (current is marked with *) |
multica workspace switch <id|slug> |
Switch the default workspace for this profile |
multica issue list |
List issues in your workspace |
multica issue create |
Create a new issue |
multica update |
Update to the latest version |
See the CLI and Daemon Guide for the full command reference.
Architecture
┌──────────────┐ ┌──────────────┐ ┌──────────────────┐
│ Next.js │────>│ Go Backend │────>│ PostgreSQL │
│ Frontend │<────│ (Chi + WS) │<────│ (pgvector) │
└──────────────┘ └──────┬───────┘ └──────────────────┘
│
┌──────┴───────┐
│ Agent Daemon │ runs on your machine
└──────────────┘ (Claude Code, Codex, CodeBuddy, GitHub Copilot CLI,
OpenCode, OpenClaw, Hermes, Pi, Cursor Agent,
Kimi, Kiro CLI, Antigravity, Qoder CLI, Trae CLI)
| Layer | Stack |
|---|---|
| Frontend | Next.js 16 (App Router) |
| Backend | Go (Chi router, sqlc, gorilla/websocket) |
| Database | PostgreSQL 17 with pgvector |
| Agent Runtime | Local daemon executing Claude Code, Codex, CodeBuddy, GitHub Copilot CLI, OpenCode, OpenClaw, Hermes, Pi, Cursor Agent, Kimi, Kiro CLI, Antigravity, Qoder CLI, or Trae CLI |
Development
For contributors working on the Multica codebase, see the Contributing Guide.
Prerequisites: Node.js v20+, pnpm v10.28+, Go v1.26+, Docker
make dev
make dev auto-detects your environment (main checkout or worktree), creates the env file, installs dependencies, sets up the database, runs migrations, and starts all services.
See CONTRIBUTING.md for the full development workflow, worktree support, testing, and troubleshooting.
An iOS mobile client lives in apps/mobile/ — see its README for how to build it onto your own iPhone.

