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import { ComposioToolSet as BaseComposioToolSet } from "../sdk/base.toolset";
import {
AiTextGenerationOutput,
AiTextGenerationToolInput,
} from "@cloudflare/workers-types";
import { COMPOSIO_BASE_URL } from "../sdk/client/core/OpenAPI";
import { WorkspaceConfig } from "../env/config";
import { Workspace } from "../env";
import { TELEMETRY_LOGGER } from "../sdk/utils/telemetry";
import { TELEMETRY_EVENTS } from "../sdk/utils/telemetry/events";
// Type definitions
type Optional<T> = T | null;
type Sequence<T> = Array<T>;
/**
* CloudflareToolSet provides integration with Cloudflare Workers AI
* for executing AI tool calls and handling responses
*/
export class CloudflareToolSet extends BaseComposioToolSet {
// Class constants
static FRAMEWORK_NAME = "cloudflare";
static DEFAULT_ENTITY_ID = "default";
fileName: string = "js/src/frameworks/cloudflare.ts";
/**
* Initialize a new CloudflareToolSet instance
*
* @param config Configuration options including API key, base URL, entity ID and workspace config
*/
constructor(
config: {
apiKey?: Optional<string>;
baseUrl?: Optional<string>;
entityId?: string;
workspaceConfig?: WorkspaceConfig;
} = {}
) {
super(
config.apiKey || null,
config.baseUrl || COMPOSIO_BASE_URL,
CloudflareToolSet.FRAMEWORK_NAME,
config.entityId || CloudflareToolSet.DEFAULT_ENTITY_ID,
config.workspaceConfig || Workspace.Host()
);
}
/**
* Retrieve available tools based on provided filters
*
* @param filters Optional filters for actions, apps, tags and use cases
* @returns Promise resolving to array of AI text generation tools
*/
async getTools(filters: {
actions?: Optional<Sequence<string>>;
apps?: Sequence<string>;
tags?: Optional<Array<string>>;
useCase?: Optional<string>;
usecaseLimit?: Optional<number>;
filterByAvailableApps?: Optional<boolean>;
}): Promise<Sequence<AiTextGenerationToolInput>> {
TELEMETRY_LOGGER.manualTelemetry(TELEMETRY_EVENTS.SDK_METHOD_INVOKED, {
method: "getTools",
file: this.fileName,
params: filters,
});
const actions = await this.getToolsSchema(filters);
return (
actions.map((action) => {
// Format the action schema for Cloudflare Workers AI
const formattedSchema: AiTextGenerationToolInput["function"] = {
name: action.name!,
description: action.description!,
parameters: action.parameters as unknown as {
type: "object";
properties: {
[key: string]: {
type: string;
description?: string;
};
};
required: string[];
},
};
const tool: AiTextGenerationToolInput = {
type: "function",
function: formattedSchema,
};
return tool;
}) || []
);
}
/**
* Execute a single tool call
*
* @param tool The tool to execute with name and arguments
* @param entityId Optional entity ID to execute the tool for
* @returns Promise resolving to stringified tool execution result
*/
async executeToolCall(
tool: {
name: string;
arguments: unknown;
},
entityId: Optional<string> = null
): Promise<string> {
TELEMETRY_LOGGER.manualTelemetry(TELEMETRY_EVENTS.SDK_METHOD_INVOKED, {
method: "executeToolCall",
file: this.fileName,
params: { tool, entityId },
});
return JSON.stringify(
await this.executeAction({
action: tool.name,
params:
typeof tool.arguments === "string"
? JSON.parse(tool.arguments)
: tool.arguments,
entityId: entityId || this.entityId,
})
);
}
/**
* Handle tool calls from AI text generation output
*
* @param result The AI text generation output containing tool calls
* @param entityId Optional entity ID to execute the tools for
* @returns Promise resolving to array of tool execution results
*/
async handleToolCall(
result: AiTextGenerationOutput,
entityId: Optional<string> = null
): Promise<Sequence<string>> {
TELEMETRY_LOGGER.manualTelemetry(TELEMETRY_EVENTS.SDK_METHOD_INVOKED, {
method: "handleToolCall",
file: this.fileName,
params: { result, entityId },
});
const outputs = [];
Iif ("tool_calls" in result && Array.isArray(result.tool_calls)) {
for (const tool_call of result.tool_calls) {
Iif (tool_call.name) {
outputs.push(await this.executeToolCall(tool_call, entityId));
}
}
}
return outputs;
}
}
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