revyl_assert

Assert a visual condition on the device screen. Describe what should be true. Examples: ‘the cart total shows $42.99’, ‘a success message is visible’, ‘the Sign In button is disabled’, ‘there are at least 3 search results’, ‘the settings screen is open’, ‘the order confirmation page is shown’.

Source

• Kind: class-backed
• Class: xyz.block.trailblaze.revyl.tools.RevylNativeAssertTool

Contract

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

Input schema

Required parameters

• assertion — String The condition to verify, described in natural language. Examples: ‘the cart badge shows 2 items’, ‘the profile tab is selected’.

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.