Tab Control

Use tabctl to inspect and analyze tabs safely, then perform targeted GraphQL mutations only when requested.

Public browser API

Browser state is now exposed through GraphQL only:

• tabctl query '<GRAPHQL>'
• tabctl schema
• tabctl ping
• tabctl history

Do not use removed legacy browser subcommands like list, open, close, inspect, report, screenshot, archive, or undo.

Discovery

tabctl schema
tabctl help
tabctl help query

Read examples

# Windows, tabs, and groups
 tabctl query '{ windows { windowId focused groups { groupId title } tabs { tabId title url groupTitle } } }'

# Paginated tabs
 tabctl query '{ tabs(limit: 20, offset: 0) { total hasMore items { tabId title url } } }'

# Analyze duplicate/stale tabs
 tabctl query '{ analyze(windowId: 123, staleDays: 30) { totalTabs duplicateTabs staleTabs } }'

# Inspect page metadata
 tabctl query 'query { inspectTabs(tabIds: [456], signals: ["page-meta"]) { entries { tabId signals { name valueJson } } } }'

# Inspect selectors with typed attrs and filters
 tabctl query 'query { inspectTabs(windowId: 123, selectors: [{ name: "prices", selector: ".price", attr: "text", all: true, text: "$", textMode: "contains" }, { name: "submit_visible", selector: "#submit", attr: "visible" }, { name: "submit_style", selector: "#submit", attr: "styles", styleProps: ["color", "background-color"] }, { name: "item_count", selector: ".item", attr: "count" }, { name: "email_value", selector: "input[type=email]", attr: "value" }, { name: "tos_checked", selector: "input[name=terms]", attr: "checked" }]) { entries { tabId url signals { name valueJson } } } }'

# Read page content as Markdown
 tabctl query 'query { readTabs(windowId: 123, extract: true, maxChars: 30000) { entries { tabId title url markdown chars truncated extracted cached status emptyReason diagnostics { source sourceHtmlChars sourceTextChars documentReadyState truncatedHtml cachedAt cacheAgeMs } error } } }'

# Build reports
 tabctl query '{ reportTabs(windowId: 123) { entries { tabId title url description } } }'

# Capture screenshots
 tabctl query 'query { captureScreenshots(tabIds: [456], mode: "viewport") { entries { tabId tiles { index width height } } } }'

Read-only extraction notes

• readTabs converts main-frame HTML to Markdown with Kreuzberg preprocessing. Check status, emptyReason, diagnostics, and error per tab; cached fallbacks use a bounded profile-local open-tab cache refreshed by successful reads, active tab switches, and quiescent active pages, and report status: CACHED, cached: true, and cache provenance in diagnostics.
• readTabs v1 does not traverse cross-origin iframes or shadow DOM; non-scriptable URLs are returned with status: UNSUPPORTED_URL.
• inspectTabs selector attrs now include html, value, count, box, styles, visible, enabled, and checked.
• visible means rendered and not display:none, visibility:hidden, or opacity:0.
• enabled means the element is not disabled and aria-disabled != "true".
• checked uses input.checked for form controls, otherwise aria-checked == "true".

Mutation examples

# Open tabs in a new grouped window
 tabctl query 'mutation { openTabs(urls: ["https://example.com"], group: "Research", newWindow: true) { windowId groupId tabs { tabId url } } }'

# Group and window changes
 tabctl query 'mutation { updateGroup(groupId: 99, title: "Inbox", color: "blue") { groupId title color } }'
 tabctl query 'mutation { assignToGroup(tabIds: [456], groupTitle: "Inbox") { groupId title } }'
 tabctl query 'mutation { ungroupTabs(tabIds: [456]) { tabId groupId } }'
 tabctl query 'mutation { moveGroup(groupId: 99, newWindow: true) { movedToWindowId movedTabs } }'
 tabctl query 'mutation { mergeWindows(fromWindowId: 200, toWindowId: 123, closeSource: true, confirm: true) { movedTabs sourceClosed } }'

# Tab changes
 tabctl query 'mutation { focusTab(tabId: 456) { success } }'
 tabctl query 'mutation { refreshTabs(tabIds: [456]) { refreshedTabs } }'
 tabctl query 'mutation { moveTab(tabIds: [456], windowId: 123, index: 0) { movedTabs } }'

# Destructive actions with undo support
 tabctl query 'mutation { closeTabs(tabIds: [456], confirm: true) { txid closedTabs } }'
 tabctl query 'mutation { archiveTabs(windowId: 123) { txid archivedTabs } }'
 tabctl query 'mutation { deduplicateTabs(windowId: 123, confirm: true) { txid closedTabs } }'
 tabctl query 'mutation { undoAction(latest: true) { txid summary } }'

# Extension reload
 tabctl query 'mutation { reloadExtension { reloading } }'

Safety

• Prefer read-only GraphQL queries unless the user explicitly asks for changes.
• Keep mutations scoped and reversible; surface txid values when available.
• Never run destructive workflows against the user's full browsing session without explicit targets or confirmation.
• Respect policy: protected tabs are excluded from query and mutation results.
• Use screenshots only when visual context is necessary.

Convenience commands

tabctl ping
tabctl history --limit 10

Use ping for connectivity/version health and history to find undo transactions.

Troubleshooting

• tabctl ping --json is the canonical runtime health check.
• tabctl doctor --fix repairs local profile wiring and sync drift.
• TABCTL_AUTO_SYNC_MODE=release-like tabctl query '{ tabs { total } }' forces runtime sync behavior during local release-like testing.