assertVisible

Assert an element is visible on screen by its ref ID from the snapshot. Use the short hash ref shown in square brackets (e.g., y778 from [y778] “Network & internet”). These refs are stable across captures of the same screen.

Source

• Kind: class-backed
• Class: xyz.block.trailblaze.toolcalls.commands.AssertVisibleTrailblazeTool

Contract

• Visible to LLM: yes (surface_to_llm: true)
• Recordable: yes (is_recordable: true)
• Host-only: no (requires_host: false)

Input schema

Required parameters

• ref — String The element ref from the snapshot (e.g., ‘y778’)

Optional parameters

• reasoning — String

Output

Returns: string (opaque text content)

Typed result schemas (kind: query | action, MCP structuredContent) are not yet carried by the resolved manifest — this section will gain detail when that lands.