name: hotkey description: Press a combination of keys simultaneously, e.g. ["ctrl","c"] for Copy. Sent via XSendEvent directly to the target pid; target does NOT need to be frontmost. input_schema: { "additionalProperties": false, "properties": { "delivery_mode": { "default": "background", "description": "Input delivery mode. 'background' (default) never activates or raises the target window. On X11 it injects via XTEST / the XInput2 master pointer (no focus steal). On Wayland it goes through libei + xdg-desktop-portal, which injects to the compositor's input focus — Wayland's security model has no per-window background targeting, so a specific non-focused window cannot be aimed at; when no libei backend is available the tool returns a structured background_unavailable error. 'foreground' is the explicit escalation: activate the target (X11 _NET_ACTIVE_WINDOW; Wayland compositor activate), inject, then restore the prior active window — a brief focus swap unless the target was already active. Matches the macOS / Windows delivery_mode surface.", "enum": [ "background", "foreground" ], "type": "string" }, "element_index": { "description": "Element index from get_window_state. Requires the matching `snapshot_id` alongside it. Prefer `element_token`, which carries both values.", "type": "integer" }, "element_token": { "description": "Opaque per-snapshot element handle from `structuredContent.elements[].element_token`. If element_index, snapshot_id, or window_id are also supplied they must agree. Returns an explicit stale error once a newer snapshot supersedes it.", "type": "string" }, "keys": { "description": "Modifier(s) + one non-modifier key, e.g. [\"ctrl\",\"c\"].", "items": { "type": "string" }, "minItems": 2, "type": "array" }, "pid": { "type": "integer" }, "scope": { "default": "window", "enum": [ "window", "desktop" ], "type": "string" }, "session": { "description": "For multi-call work, prefer a short public session label and repeat it on every call that accepts it. Omit it to use the authenticated transport's implicit lifecycle session.", "type": "string" }, "snapshot_id": { "description": "Snapshot handle from get_window_state. Required when targeting by element_index; stale snapshots fail closed.", "pattern": "^s[0-9a-f]{8}$", "type": "string" }, "target": { "anyOf": [ { "description": "Exact capture/input target selected independently for each action.\n\n`display_id=\"primary\"` is the portable desktop target in this release.\nPlatforms that cannot address another display reject it explicitly rather\nthan silently changing coordinate spaces.", "oneOf": [ { "additionalProperties": true, "properties": { "kind": { "const": "window", "type": "string" }, "pid": { "format": "uint32", "minimum": 0, "type": "integer" }, "window_id": { "format": "uint64", "minimum": 0, "type": "integer" } }, "required": [ "kind", "pid", "window_id" ], "type": "object" }, { "additionalProperties": true, "properties": { "display_id": { "type": "string" }, "kind": { "const": "desktop", "type": "string" } }, "required": [ "kind", "display_id" ], "type": "object" } ] }, { "type": "null" } ] }, "window_id": { "type": "integer" }, "x": { "description": "Screenshot-pixel X — the element px action form: pixel-click there to focus, then send the combo (so e.g. Ctrl+V pastes into that field). Pass with y. Use for Chromium/Electron surfaces the background combo can't reach.", "type": "number" }, "y": { "description": "Screenshot-pixel Y (see x).", "type": "number" } }, "required": [ "keys" ], "type": "object" }