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Computer

cosh_tools::computer

Struct Computer 

Source 
pub struct Computer {
    pub description_apps: ToolDescription,
    pub description_snapshot: ToolDescription,
    pub description_wait: ToolDescription,
    pub description_screenshot: ToolDescription,
    pub description_act: ToolDescription,
    pub description_control: ToolDescription,
}
Expand description

Shared-state wrapper for computer-control tool operations.

Carries the MCP tool descriptions so the harness can register the tools; the operation methods are stateless.

Fields§

§description_apps: ToolDescription

MCP Tool description for computer_apps.

§description_snapshot: ToolDescription

MCP Tool description for computer_snapshot.

§description_wait: ToolDescription

MCP Tool description for computer_wait (blocking state wait).

§description_screenshot: ToolDescription

MCP Tool description for computer_screenshot.

§description_act: ToolDescription

MCP Tool description for computer_act (semantic pipeline on a11y elements).

§description_control: ToolDescription

MCP Tool description for computer_control (pointer + keyboard pipeline).

Implementations§

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impl Computer

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pub fn new() -> Self

Create a new Computer with tool descriptions pre-configured.

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pub async fn apps(&self, input: &ComputerApps) -> Result<AppsResult, String>

List running desktop applications with their PIDs.

See [apps] for details.

§Errors

Returns Err when the platform accessibility API is unreachable, or — for target: "focused" — when no application holds the foreground within the timeout.

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pub async fn snapshot( &self, input: &ComputerSnapshot, ) -> Result<SnapshotOutput, String>

Capture an application’s accessibility tree.

See [snapshot] for details.

§Errors

Returns Err for invalid input, an app/selector that never matches, or an unreachable platform accessibility API.

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pub async fn wait(&self, input: &ComputerWait) -> Result<WaitOutput, String>

Block until an element reaches a state, or time out with a diagnosis of the last observed state.

See [wait] for details.

§Errors

Returns Err for invalid input, an app that never surfaces, a selector that never matches, or a condition not met within the timeout (the error embeds xa11y’s Diagnosis).

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pub async fn screenshot( &self, input: &ComputerScreenshot, ) -> Result<ScreenshotOutput, String>

Capture the screen (full display, a region, or one element) and get the PNG inline as base64.

See [screenshot] for details.

§Errors

Returns Err for invalid input, an app/selector that never matches, a failed capture (e.g. missing screen-recording permission), or an encode failure.

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pub async fn act(&self, input: &ComputerAct) -> Result<ActOutput, String>

Run a semantic pipeline on an accessibility-tree element: actions, keyboard steps and waits chained via then, in ONE call.

See [act] for details.

§Errors

Returns Err for an invalid step anywhere in the chain (validated before any action), a missing value/numeric_value/range payload, when the app or a visible+enabled element match does not appear within the timeout, or when the platform rejects the action.

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pub async fn control( &self, input: &ComputerControl, ) -> Result<ControlOutput, String>

Run a desktop-control pipeline: pointer and keyboard steps chained via then, executed sequentially in ONE call.

See [control] for details.

§Errors

Returns Err for an invalid step anywhere in the chain (validated before any event), an app/selector that does not resolve, or an unavailable input backend.

Trait Implementations§

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impl Default for Computer

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fn default() -> Self

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