🤖 feat: VS Code webview dock uses the desktop live line by ThomasK33 · Pull Request #7692 · coder/xum

ThomasK33 · 2026-10-28T07:26:02Z

Summary

The VS Code webview dock now uses the desktop live line: one row with the turn status plus a sub-agents chip and a background-bash chip, each opening its panel. The two full-width rows above the composer are gone. Fixes #7689 (refs #4968).

Background

#7660 and #7687 folded the desktop composer's activity rows into one live line (ChatActivityLine renders the chips as the activity of StreamingBarrier inside ChatActivityPanelsProvider). #7660 left the webview on the old rows on purpose, so a narrow VS Code sidebar still spent one row per kind.

Implementation

All changes are in vscode/src/webview/. No file under src/ changes, so desktop behavior and the desktop bundle stay as they are.

App.tsx: one ChatActivityPanelsProvider (dataComponent="ChatActivityLine") wraps VscodeStreamingBarrier, whose activity is SubAgentTasksDock, BackgroundProcessesBanner and the shared ChatActivityOverflowChip ("+N", as on desktop). The provider key includes the connection and the workspace (activity-line-<connection>-<workspace>), so no open panel or bash output dialog carries over to another workspace or server. Without a server connection the line gets null chips, as before (no last-known processes offered).
StreamingBarrier.tsx: forwards activity and passes showModelName={false} like the desktop line. Without an aggregator it renders the same StreamingBarrierContent with an idle state instead of null, so the chips show between turns and never remount when a turn starts or ends. With no chip and no turn, the shared view hides the row.
SubAgentTasksDock.tsx: uses useChatActivityPanel("sub-agents") instead of a persisted expanded flag, the same as desktop SubAgentTasksDecoration. Opening one panel closes the other. The getSubAgentTasksExpandedKey entry stays in the storage cleanup registry, so old persisted values still get cleaned up.

Narrow widths: the shared provider opens panels in its bottom sheet at widths of 768 px or less, or heights of 500 px or less. Desktop does the same. So at 740 px and 400 px the panels open in the sheet. At wider widths they open as a popover above the line.

Perf-owner checks: make check-react-compiler stays green with the same pre-existing "1 known skipped" as main. The change adds no eslint-disable react-hooks, no manual memo, and no per-row transcript work. Dist CSS assets: 2 before, 2 after (out/xumChatView.css, out/katex/katex.min.css). No shared CSS was added, and the webviewCss.test.ts drift guard passes unchanged.

Validation

BUN_RUNTIME_TRANSPILER_CACHE_PATH=0 bun test ./vscode/src/webview/ (Bun 1.4.3): 110 pass. New tests in App.test.tsx ("vscode webview live line (🤖 feat: VS Code webview dock folds its activity rows into the desktop live line #7689)"): both chips share one line and one panel slot; Ctrl+Alt+A from the composer opens the sub-agents panel; an open panel survives a turn starting and ending but does not carry over to another workspace. Each new test fails against a deliberate break. The existing terminate, sub-agent select and Ctrl+Shift+J keyboard tests pass on the chip UI.
make static-check passes.
Dogfood: the webview bundle ran against a no-backend stub extension host (one running sub-agent, one running background bash, with and without a live turn). This ran locally and in a remote Coder Agents UAT round. No model and no chat sends.

Before (main)

740 px, live turn:

400 px, live turn:

After

740 px, live turn:

400 px, live turn:

740 px, between turns (chips only):

400 px, sub-agents chip opened (shared bottom sheet at this width):

1000 px, sub-agents panel above the line:

Risks

The risk is low and limited to the webview dock. The chips and panels are the shared desktop components. The webview only changes where they mount. Sub-agent panel state is no longer persisted per workspace, which matches desktop.

Pre-existing, not changed here: after a switch to file mode, a stale streaming status stays in the line. I checked the stub on main, and main shows the same.

Generated with xum • Model: anthropic:claude-opus-5-5 • Thinking: high • Cost: $11.53

The webview dock stacked one full-width row per activity kind (sub-agents, background bashes) above its turn status. Render them as chips in the turn status row inside ChatActivityPanelsProvider, as desktop's ChatActivityLine does (#7660, #7687): one panel open at a time, the row kept between turns for its chips and hidden without any, keyed per connection and workspace. Refs #7689 Signed-off-by: Thomas Kosiewski <tk@coder.com>

Signed-off-by: Thomas Kosiewski <tk@coder.com>

…precondition The live line's bash chip shows only a count, so the server-switch test's textContent probe for "background bash" could no longer see the previous server's processes: it passed with the connection-switch cache reset removed. Probe the chip element instead, as the first-reveal test already does. The chord test now checks the sub-agents panel starts closed, so only the chord can open it. Signed-off-by: Thomas Kosiewski <tk@coder.com>

chatgpt-codex-connector · 2026-10-28T07:26:15Z

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-28T07:28:28.697781Z	`6cb6100`	Manual request
🔒 Security Review	✅ Completed 2026-10-28T07:29:14.449261Z	`6cb6100`	Manual request

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ThomasK33 · 2026-10-28T07:26:29Z

@codex review

chatgpt-codex-connector · 2026-10-28T07:28:27Z

Codex Review: Didn't find any major issues. What shall we delve into next?

Reviewed commit: 6cb610066d

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chatgpt-codex-connector · 2026-10-28T07:29:12Z

🛡️ Codex Security Review · Automatically triggered

Security review completed. No security issues were found in this pull request.

Reviewed commit: 6cb610066d

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github-actions · 2026-10-28T07:31:39Z

🟢 e2e stories (Haiku): 14 passed

22 agent steps · 7 replayed from cache · 15 model calls · 46.4k tokens (27% cached)
Spend: $0.09 of the $1.00 cap (proxy ledger)

All 14 tests in 9 files

	Test	Agent	Time
🟢	chatRestart.e2e.ts · 1 passed	1 step · 1 call	5.8s
🟢	a chat survives a restart of the server	1 step · 1 call	5.8s
🟢	compaction.e2e.ts · 1 passed	1 step · 1 call	8.0s
🟢	/compact replaces the old chat with a summary	1 step · 1 call	8.0s
🟢	pluginTrustRestart.e2e.ts · 1 passed	4 steps · 2 calls	9.6s
🟢	a trusted plugin hook stays trusted after the server restarts	4 steps · 2 calls	9.6s
🟢	settingsRoundTrip.e2e.ts · 1 passed	2 steps · 1 call	9.1s
🟢	a chat survives trips through Settings	2 steps · 1 call	9.1s
🟢	sidebarPerWorkspace.e2e.ts · 1 passed	4 steps · 1 call	4.6s
🟢	a new workspace starts with its right sidebar collapsed while another keeps it open	4 steps · 1 call	4.6s
🟢	smoke.e2e.ts · 1 passed	2 steps · 1 call	4.7s
🟢	the agent opens the playground workspace	2 steps · 1 call	4.7s
🟢	streamErrors.e2e.ts · 1 passed	1 step · 1 call	7.6s
🟢	stream errors show in the chat, and the chat recovers	1 step · 1 call	7.6s
🟢	todoNudge.e2e.ts · 1 passed	1 step · 1 call	3.5s
🟢	the agent finishes open TODO items after the turn-end nudge	1 step · 1 call	3.5s
🟢	touchAlignment.e2e.ts · 6 passed	6 steps · 6 calls	25.0s
🟢	the Settings close button is level with the title on a touch screen 390px wide	1 step · 1 call	5.2s
🟢	the Settings close button is level with the title on a touch screen 768px wide	1 step · 1 call	4.1s
🟢	Backup settings checkboxes are small and level with their labels on a touch phone	1 step · 1 call	5.3s
🟢	the heartbeat checkbox is small and level with its label on a touch phone	1 step · 1 call	3.3s
🟢	a reply's model and time stay on one line on a touch phone	1 step · 1 call	4.0s
🟢	the workspace actions menu stays on the title row on a touch phone	1 step · 1 call	3.0s

_{e2e 0.20.0 · 1m 21s · web · run artifacts}

🟢 e2e Electron stories (Haiku): 3 passed

3 agent steps · 3 model calls · 7.9k tokens (33% cached)
Spend: $0.01 of the $1.00 cap (proxy ledger)

All 3 tests in 3 files

	Test	Agent	Time
🟢	electron/deepLink.e2e.ts · 1 passed	1 step · 1 call	5.3s
🟢	a deep link of a second launch starts a chat in the running app	1 step · 1 call	5.3s
🟢	electron/menuBar.e2e.ts · 1 passed	1 step · 1 call	6.2s
🟢	the workspace menu bar is the desktop title bar	1 step · 1 call	6.2s
🟢	electron/smoke.e2e.ts · 1 passed	1 step · 1 call	5.0s
🟢	Xum Electron opens the playground workspace	1 step · 1 call	5.0s

_{e2e 0.20.0 · 18.6s · electron · run artifacts}

🟢 e2e agent repros (Haiku): no tests selected

Spend: $0.00 of the $1.00 cap (proxy ledger)

_{e2e 0.20.0 · 5.3s · 2 targets (web, phone) · run artifacts}

ThomasK33 added 3 commits October 28, 2026 06:44

chore(vscode): drop change narration from the live line comment

c89864a

Signed-off-by: Thomas Kosiewski <tk@coder.com>

ThomasK33 added this pull request to the merge queue Oct 28, 2026

github-merge-queue Bot removed this pull request from the merge queue due to failed status checks Oct 28, 2026

ThomasK33 added this pull request to the merge queue Oct 28, 2026

ThomasK33 mentioned this pull request Oct 28, 2026

🤖 tests: flaky delegatedConsent 'Keep republishes an already kept workspace' (published length 2) #7694

Closed

Merged via the queue into main with commit 398cc64 Oct 28, 2026
33 of 34 checks passed

ThomasK33 deleted the feat/vscode-webview-live-line branch October 28, 2026 08:01

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🤖 feat: VS Code webview dock uses the desktop live line - #7692

🤖 feat: VS Code webview dock uses the desktop live line#7692
ThomasK33 merged 3 commits into
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feat/vscode-webview-live-line

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ThomasK33 commented Oct 28, 2026

Summary

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Implementation

Validation

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🟢 e2e stories (Haiku): 14 passed

🟢 e2e Electron stories (Haiku): 3 passed

🟢 e2e agent repros (Haiku): no tests selected

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