Struct ScenarioConfig 

pub struct ScenarioConfig {

    pub base_url: Option<String>,
    pub llm_url: Option<String>,
    pub llm_model: Option<String>,
    pub llm_api_key: Option<String>,
    pub llm_headers: HashMap<String, String>,
    pub browser_headless: Option<bool>,
    pub timeout_secs: Option<u64>,
    pub viewport_width: Option<u32>,
    pub viewport_height: Option<u32>,
    pub start_url: Option<String>,
    pub auto_navigate: bool,
    pub temperature: f64,
    pub thinking: Option<bool>,
    pub model_params: HashMap<String, Value>,
    pub endpoints: HashMap<String, EndpointConfig>,
    pub budgets: BudgetsConfig,
    pub mcp_server: Option<McpServerConfig>,
    pub a2a_server: Option<A2aServerConfig>,
    pub continue_on_failure: bool,
    pub screenshot_max_dimension: Option<u32>,
    pub screenshot_max_height: Option<ScreenshotHeight>,
    pub artifacts_dir: Option<String>,
    pub viewport_matrix: Option<ViewportMatrix>,
    pub layout_ignore_classes: Vec<String>,
}

Global scenario configuration with per-test overridable fields.

Fields

base_url: Option<String>

Base URL for relative navigation.

llm_url: Option<String>

LLM server base URL (deprecated; prefer [config.endpoints]).

llm_model: Option<String>

LLM model name (deprecated; prefer [config.endpoints]).

llm_api_key: Option<String>

LLM API key (Bearer token).

llm_headers: HashMap<String, String>

Custom HTTP headers as JSON key-value pairs.

browser_headless: Option<bool>

Run browser in headless mode.

timeout_secs: Option<u64>

HTTP / browser action timeout in seconds.

viewport_width: Option<u32>

Browser viewport width.

viewport_height: Option<u32>

Browser viewport height.

start_url: Option<String>

Default URL every test auto-navigates to before running its steps.

auto_navigate: bool

Whether to auto-navigate to start_url before test steps.

Disable when a test starts with click-based navigation.

temperature: f64

LLM temperature (0.0–1.0). Lower = more deterministic.

thinking: Option<bool>

Enable thinking/reasoning tokens. None means the provider default is used (no thinking key is sent). Set to true/false to explicitly enable or disable.

model_params: HashMap<String, Value>

Provider-specific model parameters merged into the chat completion request body (e.g. effort = "high" for Anthropic).

endpoints: HashMap<String, EndpointConfig>

Named endpoints (LLM, MCP, A2A agents) with pricing.

budgets: BudgetsConfig

Global and per-test budgets for cost/token/call limits.

mcp_server: Option<McpServerConfig>

MCP server exposure configuration.

a2a_server: Option<A2aServerConfig>

A2A agent server exposure configuration.

continue_on_failure: bool

Whether to continue running the remaining steps of a test after a step fails. Default false = fail fast: the first failed step ends the test and the rest are reported as skipped. Set to true to run every step (more diagnostics, more LLM cost on broken apps).

screenshot_max_dimension: Option<u32>

Longest edge (px) of screenshots attached to screenshot = true assert steps, before they are JPEG-encoded and sent to the vision endpoint. Downscaling keeps vision token cost/quality sane. Default: 1400.

screenshot_max_height: Option<ScreenshotHeight>

Height cap (px) of page coverage for screenshots attached to screenshot = true assert steps. The full scrollable page is captured, then split into viewport-tall tiles (each sent as its own image part, ordered from the top) covering at most this many pixels — below-the-fold content stays visible to the vision model at 1:1 detail while token cost stays bounded. Accepts an absolute pixel count (2880) or a viewport multiple ("20x" = twenty times the currently applied viewport height, which follows viewport-matrix and per-test overrides). A value below the viewport height is raised to it, so the visible viewport is always fully included (0 / "0x" therefore means “viewport only”, the pre-full-page behavior). Default: "20x".

artifacts_dir: Option<String>

Directory for failure artifacts (screenshots, page snapshots). Defaults to artifacts.

viewport_matrix: Option<ViewportMatrix>

Optional viewport matrix: when set, every test in the scenario is expanded into one variant per viewport (e.g. mobile/tablet/desktop). Each variant overrides the test’s viewport and gets a — <name> suffix on the test name. Per-test budgets apply per variant.

layout_ignore_classes: Vec<String>

Class-name prefixes the layout_no_issues scan skips: elements whose class matches any prefix are ignored by the fixed-element, text-clipped, and overlap checks. Defaults cover the Angular CDK screen-reader helpers (cdk-visually-hidden, cdk-describedby-message-container, cdk-overlay-container), which are intentionally 1x1 / off-screen.

Trait Implementations

impl Clone for ScenarioConfig

fn clone(&self) -> ScenarioConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ScenarioConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ScenarioConfig

fn default() -> ScenarioConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ScenarioConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.