import { PreviewAutomationClickInput, PreviewAutomationError, PreviewAutomationEvaluateInput, PreviewAutomationNavigateInput, PreviewAutomationOpenInput, PreviewAutomationPressInput, PreviewAutomationRecordingArtifact, PreviewAutomationRecordingStatus, PreviewAutomationScrollInput, PreviewAutomationSnapshot, PreviewAutomationStatus, PreviewAutomationTypeInput, PreviewAutomationWaitForInput,} from "@t3tools/contracts";import * as Schema from "effect/Schema";import { Tool, Toolkit } from "effect/unstable/ai"; import * as McpInvocationContext from "../../McpInvocationContext.ts";import * as PreviewAutomationBroker from "../../PreviewAutomationBroker.ts"; const dependencies = [ McpInvocationContext.McpInvocationContext, PreviewAutomationBroker.PreviewAutomationBroker,]; const browserTool = <T extends Tool.Any>(tool: T): T => tool.annotate(Tool.OpenWorld, true).annotate(Tool.Destructive, true) as T; const safeBrowserTool = <T extends Tool.Any>(tool: T): T => browserTool(tool).annotate(Tool.Destructive, false) as T; const readonlyBrowserTool = <T extends Tool.Any>(tool: T): T => safeBrowserTool(tool).annotate(Tool.Readonly, true).annotate(Tool.Idempotent, true) as T; export const PreviewStatusTool = Tool.make("preview_status", { description: "Report whether the scoped thread has an automation-capable desktop preview, including its active tab, URL, title, visibility, and loading state.", success: PreviewAutomationStatus, failure: PreviewAutomationError, dependencies,}) .annotate(Tool.Title, "Get preview status") .annotate(Tool.Readonly, true) .annotate(Tool.Destructive, false) .annotate(Tool.Idempotent, true); export const PreviewOpenTool = browserTool( Tool.make("preview_open", { description: "Show and initialize the browser preview for the scoped thread, optionally reusing its current tab and navigating to a URL.", parameters: PreviewAutomationOpenInput, success: PreviewAutomationStatus, failure: PreviewAutomationError, dependencies, }) .annotate(Tool.Title, "Open browser preview") .annotate(Tool.Destructive, false),); export const PreviewNavigateTool = safeBrowserTool( Tool.make("preview_navigate", { description: "Navigate the active collaborative browser tab. Pass {url:'https://t3.chat'} for a website, or {target:{kind:'environment-port',port:5173}} for a dev server in the current environment. Exactly one of url or target is required. Defaults to waiting for page loading to stop.", parameters: PreviewAutomationNavigateInput, success: PreviewAutomationStatus, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Navigate browser preview"),); export const PreviewSnapshotTool = readonlyBrowserTool( Tool.make("preview_snapshot", { description: "Inspect the current page before interacting. Returns URL/title/loading state, visible text, semantic interactive elements with reusable selectors and coordinates, accessibility data, recent console/network failures, action history, and a PNG screenshot.", success: PreviewAutomationSnapshot, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Inspect browser page"),); export const PreviewClickTool = browserTool( Tool.make("preview_click", { description: "Click exactly one page target. Prefer locator with a Playwright selector such as role=button[name='Send']; selector accepts legacy CSS; x and y are viewport CSS pixels and must be supplied together. Call preview_snapshot first when the target is unknown.", parameters: PreviewAutomationClickInput, success: Schema.Null, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Click preview page"),); export const PreviewTypeTool = browserTool( Tool.make("preview_type", { description: "Insert literal text into one input. Prefer locator with a Playwright role/text selector; selector accepts legacy CSS. If neither is supplied, types into the currently focused element. Set clear=true to replace existing text.", parameters: PreviewAutomationTypeInput, success: Schema.Null, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Type into preview page"),); export const PreviewPressTool = browserTool( Tool.make("preview_press", { description: "Press one keyboard key in the active page, for example {key:'Enter'}, {key:'Escape'}, or {key:'a',modifiers:['Meta']}. This targets the page's current focus.", parameters: PreviewAutomationPressInput, success: Schema.Null, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Press key in preview page"),); export const PreviewScrollTool = safeBrowserTool( Tool.make("preview_scroll", { description: "Scroll by CSS pixels. Positive deltaY scrolls down and positive deltaX scrolls right. Without locator/selector it scrolls the viewport; otherwise it scrolls that container. At least one delta is required.", parameters: PreviewAutomationScrollInput, success: Schema.Null, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Scroll preview page"),); export const PreviewEvaluateTool = browserTool( Tool.make("preview_evaluate", { description: "Evaluate a JavaScript expression in the page's main frame and return a serializable result up to 64 KB. Prefer preview_snapshot and semantic click/type/wait tools; use this for inspection or interactions those tools cannot express. The expression may mutate page state.", parameters: PreviewAutomationEvaluateInput, success: Schema.Unknown, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Evaluate JavaScript in preview"),); export const PreviewWaitForTool = readonlyBrowserTool( Tool.make("preview_wait_for", { description: "Wait until all supplied conditions match: a Playwright locator, legacy CSS selector, visible-text substring, and/or URL substring. Provide at least one condition. Defaults to 15 seconds, maximum 60 seconds.", parameters: PreviewAutomationWaitForInput, success: Schema.Null, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Wait for preview page condition"),); export const PreviewRecordingStartTool = safeBrowserTool( Tool.make("preview_recording_start", { description: "Start recording the active collaborative browser tab while keeping it interactive for both agent and human use.", success: PreviewAutomationRecordingStatus, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Start browser recording"),); export const PreviewRecordingStopTool = safeBrowserTool( Tool.make("preview_recording_stop", { description: "Stop the active browser recording and save it as a local evidence artifact.", success: PreviewAutomationRecordingArtifact, failure: PreviewAutomationError, dependencies, }).annotate(Tool.Title, "Stop browser recording"),); export const PreviewToolkit = Toolkit.make( PreviewStatusTool, PreviewOpenTool, PreviewNavigateTool, PreviewSnapshotTool, PreviewClickTool, PreviewTypeTool, PreviewPressTool, PreviewScrollTool, PreviewEvaluateTool, PreviewWaitForTool, PreviewRecordingStartTool, PreviewRecordingStopTool,); export const PreviewStandardToolkit = Toolkit.make( PreviewStatusTool, PreviewOpenTool, PreviewNavigateTool, PreviewClickTool, PreviewTypeTool, PreviewPressTool, PreviewScrollTool, PreviewEvaluateTool, PreviewWaitForTool, PreviewRecordingStartTool, PreviewRecordingStopTool,); export const PreviewSnapshotToolkit = Toolkit.make(PreviewSnapshotTool);
import {
PreviewAutomationClickInput,
PreviewAutomationError,
PreviewAutomationEvaluateInput,
PreviewAutomationNavigateInput,
PreviewAutomationOpenInput,
PreviewAutomationPressInput,
PreviewAutomationRecordingArtifact,
PreviewAutomationRecordingStatus,
PreviewAutomationScrollInput,
PreviewAutomationSnapshot,
PreviewAutomationStatus,
PreviewAutomationTypeInput,
PreviewAutomationWaitForInput,
} from "@t3tools/contracts";
import * as Schema from "effect/Schema";
import { Tool, Toolkit } from "effect/unstable/ai";
import * as McpInvocationContext from "../../McpInvocationContext.ts";
import * as PreviewAutomationBroker from "../../PreviewAutomationBroker.ts";
const dependencies = [
McpInvocationContext.McpInvocationContext,
PreviewAutomationBroker.PreviewAutomationBroker,
];
const browserTool = <T extends Tool.Any>(tool: T): T =>
tool.annotate(Tool.OpenWorld, true).annotate(Tool.Destructive, true) as T;
const safeBrowserTool = <T extends Tool.Any>(tool: T): T =>
browserTool(tool).annotate(Tool.Destructive, false) as T;
const readonlyBrowserTool = <T extends Tool.Any>(tool: T): T =>
safeBrowserTool(tool).annotate(Tool.Readonly, true).annotate(Tool.Idempotent, true) as T;
export const PreviewStatusTool = Tool.make("preview_status", {
description:
"Report whether the scoped thread has an automation-capable desktop preview, including its active tab, URL, title, visibility, and loading state.",
success: PreviewAutomationStatus,
failure: PreviewAutomationError,
dependencies,
})
.annotate(Tool.Title, "Get preview status")
.annotate(Tool.Readonly, true)
.annotate(Tool.Destructive, false)
.annotate(Tool.Idempotent, true);
export const PreviewOpenTool = browserTool(
Tool.make("preview_open", {
description:
"Show and initialize the browser preview for the scoped thread, optionally reusing its current tab and navigating to a URL.",
parameters: PreviewAutomationOpenInput,
success: PreviewAutomationStatus,
failure: PreviewAutomationError,
dependencies,
})
.annotate(Tool.Title, "Open browser preview")
.annotate(Tool.Destructive, false),
);
export const PreviewNavigateTool = safeBrowserTool(
Tool.make("preview_navigate", {
description:
"Navigate the active collaborative browser tab. Pass {url:'https://t3.chat'} for a website, or {target:{kind:'environment-port',port:5173}} for a dev server in the current environment. Exactly one of url or target is required. Defaults to waiting for page loading to stop.",
parameters: PreviewAutomationNavigateInput,
success: PreviewAutomationStatus,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Navigate browser preview"),
);
export const PreviewSnapshotTool = readonlyBrowserTool(
Tool.make("preview_snapshot", {
description:
"Inspect the current page before interacting. Returns URL/title/loading state, visible text, semantic interactive elements with reusable selectors and coordinates, accessibility data, recent console/network failures, action history, and a PNG screenshot.",
success: PreviewAutomationSnapshot,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Inspect browser page"),
);
export const PreviewClickTool = browserTool(
Tool.make("preview_click", {
description:
"Click exactly one page target. Prefer locator with a Playwright selector such as role=button[name='Send']; selector accepts legacy CSS; x and y are viewport CSS pixels and must be supplied together. Call preview_snapshot first when the target is unknown.",
parameters: PreviewAutomationClickInput,
success: Schema.Null,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Click preview page"),
);
export const PreviewTypeTool = browserTool(
Tool.make("preview_type", {
description:
"Insert literal text into one input. Prefer locator with a Playwright role/text selector; selector accepts legacy CSS. If neither is supplied, types into the currently focused element. Set clear=true to replace existing text.",
parameters: PreviewAutomationTypeInput,
success: Schema.Null,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Type into preview page"),
);
export const PreviewPressTool = browserTool(
Tool.make("preview_press", {
description:
"Press one keyboard key in the active page, for example {key:'Enter'}, {key:'Escape'}, or {key:'a',modifiers:['Meta']}. This targets the page's current focus.",
parameters: PreviewAutomationPressInput,
success: Schema.Null,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Press key in preview page"),
);
export const PreviewScrollTool = safeBrowserTool(
Tool.make("preview_scroll", {
description:
"Scroll by CSS pixels. Positive deltaY scrolls down and positive deltaX scrolls right. Without locator/selector it scrolls the viewport; otherwise it scrolls that container. At least one delta is required.",
parameters: PreviewAutomationScrollInput,
success: Schema.Null,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Scroll preview page"),
);
export const PreviewEvaluateTool = browserTool(
Tool.make("preview_evaluate", {
description:
"Evaluate a JavaScript expression in the page's main frame and return a serializable result up to 64 KB. Prefer preview_snapshot and semantic click/type/wait tools; use this for inspection or interactions those tools cannot express. The expression may mutate page state.",
parameters: PreviewAutomationEvaluateInput,
success: Schema.Unknown,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Evaluate JavaScript in preview"),
);
export const PreviewWaitForTool = readonlyBrowserTool(
Tool.make("preview_wait_for", {
description:
"Wait until all supplied conditions match: a Playwright locator, legacy CSS selector, visible-text substring, and/or URL substring. Provide at least one condition. Defaults to 15 seconds, maximum 60 seconds.",
parameters: PreviewAutomationWaitForInput,
success: Schema.Null,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Wait for preview page condition"),
);
export const PreviewRecordingStartTool = safeBrowserTool(
Tool.make("preview_recording_start", {
description:
"Start recording the active collaborative browser tab while keeping it interactive for both agent and human use.",
success: PreviewAutomationRecordingStatus,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Start browser recording"),
);
export const PreviewRecordingStopTool = safeBrowserTool(
Tool.make("preview_recording_stop", {
description: "Stop the active browser recording and save it as a local evidence artifact.",
success: PreviewAutomationRecordingArtifact,
failure: PreviewAutomationError,
dependencies,
}).annotate(Tool.Title, "Stop browser recording"),
);
export const PreviewToolkit = Toolkit.make(
PreviewStatusTool,
PreviewOpenTool,
PreviewNavigateTool,
PreviewSnapshotTool,
PreviewClickTool,
PreviewTypeTool,
PreviewPressTool,
PreviewScrollTool,
PreviewEvaluateTool,
PreviewWaitForTool,
PreviewRecordingStartTool,
PreviewRecordingStopTool,
);
export const PreviewStandardToolkit = Toolkit.make(
PreviewStatusTool,
PreviewOpenTool,
PreviewNavigateTool,
PreviewClickTool,
PreviewTypeTool,
PreviewPressTool,
PreviewScrollTool,
PreviewEvaluateTool,
PreviewWaitForTool,
PreviewRecordingStartTool,
PreviewRecordingStopTool,
);
export const PreviewSnapshotToolkit = Toolkit.make(PreviewSnapshotTool);