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[bbrt] Support running breadboard components directly (#4118)
Regular breadboard components (e.g. GeminiKit, GoogleDriveKit) can now be executed directly by the main conversation. (Boards from the board server could already be executed).
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146 changes: 146 additions & 0 deletions
146
packages/bbrt/src/breadboard/breadboard-component-tool.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,146 @@ | ||
| /** | ||
| * @license | ||
| * Copyright 2025 Google LLC | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| import { | ||
| createGraphStore, | ||
| createLoader, | ||
| type GraphDescriptor, | ||
| type Kit, | ||
| type NodeDescriberFunction, | ||
| type NodeDescriptor, | ||
| type NodeHandler, | ||
| } from "@google-labs/breadboard"; | ||
| import type { ArtifactHandle } from "../artifacts/artifact-interface.js"; | ||
| import type { ArtifactStore } from "../artifacts/artifact-store.js"; | ||
| import type { SecretsProvider } from "../secrets/secrets-provider.js"; | ||
| import type { | ||
| BBRTTool, | ||
| BBRTToolAPI, | ||
| BBRTToolMetadata, | ||
| } from "../tools/tool-types.js"; | ||
| import type { JsonSerializableObject } from "../util/json-serializable.js"; | ||
| import type { Result } from "../util/result.js"; | ||
| import { BreadboardToolInvocation } from "./breadboard-tool.js"; | ||
| import { makeToolSafeName } from "./make-tool-safe-name.js"; | ||
| import { standardizeBreadboardSchema } from "./standardize-breadboard-schema.js"; | ||
|
|
||
| export class BreadboardComponentTool implements BBRTTool { | ||
| readonly #kit: Kit; | ||
| readonly #id: string; | ||
| readonly #describe?: NodeDescriberFunction; | ||
| readonly #secrets: SecretsProvider; | ||
| readonly #artifacts: ArtifactStore; | ||
| readonly #kits: Kit[]; | ||
|
|
||
| constructor( | ||
| kit: Kit, | ||
| id: string, | ||
| handler: NodeHandler, | ||
| secrets: SecretsProvider, | ||
| artifacts: ArtifactStore, | ||
| kits: Kit[] | ||
| ) { | ||
| this.#kit = kit; | ||
| this.#id = id; | ||
| this.#secrets = secrets; | ||
| this.#artifacts = artifacts; | ||
| this.#kits = kits; | ||
| if ("describe" in handler) { | ||
| this.#describe = handler.describe; | ||
| } | ||
| } | ||
|
|
||
| get metadata(): BBRTToolMetadata { | ||
| return { | ||
| id: makeToolSafeName(`${this.#kit.url}_${this.#id}`), | ||
| title: `${this.#kit.title}: ${this.#id}`, | ||
| description: "TODO", | ||
| icon: "/bbrt/images/tool.svg", | ||
| }; | ||
| } | ||
|
|
||
| async api(): Promise<Result<BBRTToolAPI>> { | ||
| const graphStore = createGraphStore({ | ||
| kits: this.#kits, | ||
| loader: createLoader(), | ||
| sandbox: { | ||
| runModule: () => { | ||
| throw new Error("TODO: runModule not implemented"); | ||
| }, | ||
| }, | ||
| }); | ||
|
|
||
| if (this.#describe) { | ||
| const { inputSchema, outputSchema } = await this.#describe( | ||
| undefined, | ||
| undefined, | ||
| undefined, | ||
| { | ||
| graphStore, | ||
| outerGraph: { nodes: [], edges: [] }, | ||
| wires: { incoming: {}, outgoing: {} }, | ||
| } | ||
| ); | ||
| return { | ||
| ok: true, | ||
| value: { | ||
| inputSchema: standardizeBreadboardSchema(inputSchema), | ||
| outputSchema: standardizeBreadboardSchema(outputSchema), | ||
| }, | ||
| }; | ||
| } | ||
| return { | ||
| ok: true, | ||
| value: { | ||
| inputSchema: { type: "object", properties: {}, required: [] }, | ||
| outputSchema: { type: "object", properties: {}, required: [] }, | ||
| }, | ||
| }; | ||
| } | ||
|
|
||
| execute(args: JsonSerializableObject) { | ||
| return { result: this.#execute(args) }; | ||
| } | ||
|
|
||
| async #execute( | ||
| args: JsonSerializableObject | ||
| ): Promise< | ||
| Result<{ data: JsonSerializableObject; artifacts: ArtifactHandle[] }> | ||
| > { | ||
| const component: NodeDescriptor = { | ||
| id: "component", | ||
| type: this.#id, | ||
| configuration: args, | ||
| }; | ||
| const bgl: GraphDescriptor = { | ||
| nodes: [component], | ||
| edges: [], | ||
| }; | ||
| const invocation = new BreadboardToolInvocation( | ||
| args, | ||
| async () => ({ ok: true, value: bgl }), | ||
| this.#secrets, | ||
| this.#artifacts, | ||
| this.#kits | ||
| ); | ||
| await invocation.start(); | ||
| const state = invocation.state.get(); | ||
| if (state.status === "success") { | ||
| return { | ||
| ok: true, | ||
| value: { | ||
| data: state.value.output as JsonSerializableObject, | ||
| artifacts: state.value.artifacts, | ||
| }, | ||
| }; | ||
| } else if (state.status === "error") { | ||
| return { ok: false, error: state.error }; | ||
| } else { | ||
| state.status satisfies "running" | "unstarted"; | ||
| return { ok: false, error: `Internal error: state was ${state.status}` }; | ||
| } | ||
| } | ||
| } |
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