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| 1 | +/** |
| 2 | + * @license |
| 3 | + * Copyright 2026 Google LLC |
| 4 | + * SPDX-License-Identifier: Apache-2.0 |
| 5 | + */ |
| 6 | + |
| 7 | +import fs from 'node:fs'; |
| 8 | +import path from 'node:path'; |
| 9 | + |
| 10 | +import {Client} from '@modelcontextprotocol/sdk/client/index.js'; |
| 11 | +import {StdioClientTransport} from '@modelcontextprotocol/sdk/client/stdio.js'; |
| 12 | + |
| 13 | +import {parseArguments} from '../build/src/cli.js'; |
| 14 | +import {labels} from '../build/src/tools/categories.js'; |
| 15 | +import {createTools} from '../build/src/tools/tools.js'; |
| 16 | + |
| 17 | +const OUTPUT_PATH = path.join( |
| 18 | + import.meta.dirname, |
| 19 | + '../src/bin/cliDefinitions.ts', |
| 20 | +); |
| 21 | + |
| 22 | +async function fetchTools() { |
| 23 | + console.log('Connecting to chrome-devtools-mcp to fetch tools...'); |
| 24 | + // Use the local build of the server |
| 25 | + const serverPath = path.join(import.meta.dirname, '../build/src/index.js'); |
| 26 | + |
| 27 | + const transport = new StdioClientTransport({ |
| 28 | + command: 'node', |
| 29 | + args: [serverPath], |
| 30 | + env: {...process.env, CHROME_DEVTOOLS_MCP_NO_USAGE_STATISTICS: 'true'}, |
| 31 | + }); |
| 32 | + |
| 33 | + const client = new Client( |
| 34 | + { |
| 35 | + name: 'chrome-devtools-cli-generator', |
| 36 | + version: '0.1.0', |
| 37 | + }, |
| 38 | + { |
| 39 | + capabilities: {}, |
| 40 | + }, |
| 41 | + ); |
| 42 | + |
| 43 | + await client.connect(transport); |
| 44 | + try { |
| 45 | + const toolsResponse = await client.listTools(); |
| 46 | + if (!toolsResponse.tools?.length) { |
| 47 | + throw new Error(`No tools were fetched`); |
| 48 | + } |
| 49 | + const tools = toolsResponse.tools || []; |
| 50 | + console.log(`Fetched ${tools.length} tools`); |
| 51 | + return tools; |
| 52 | + } finally { |
| 53 | + await client.close(); |
| 54 | + } |
| 55 | +} |
| 56 | + |
| 57 | +interface CliOption { |
| 58 | + name: string; |
| 59 | + type: string; |
| 60 | + description: string; |
| 61 | + required: boolean; |
| 62 | + default?: unknown; |
| 63 | + enum?: unknown[]; |
| 64 | +} |
| 65 | + |
| 66 | +interface JsonSchema { |
| 67 | + type?: string | string[]; |
| 68 | + description?: string; |
| 69 | + properties?: Record<string, JsonSchema>; |
| 70 | + required?: string[]; |
| 71 | + default?: unknown; |
| 72 | + enum?: unknown[]; |
| 73 | +} |
| 74 | + |
| 75 | +function schemaToCLIOptions(schema: JsonSchema): CliOption[] { |
| 76 | + if (!schema || !schema.properties) { |
| 77 | + return []; |
| 78 | + } |
| 79 | + const required = schema.required || []; |
| 80 | + const properties = schema.properties; |
| 81 | + return Object.entries(properties).map(([name, prop]) => { |
| 82 | + const isRequired = required.includes(name); |
| 83 | + const description = prop.description || ''; |
| 84 | + if (typeof prop.type !== 'string') { |
| 85 | + throw new Error( |
| 86 | + `Property ${name} has a complex type not supported by CLI.`, |
| 87 | + ); |
| 88 | + } |
| 89 | + return { |
| 90 | + name, |
| 91 | + type: prop.type, |
| 92 | + description, |
| 93 | + required: isRequired, |
| 94 | + default: prop.default, |
| 95 | + enum: prop.enum, |
| 96 | + }; |
| 97 | + }); |
| 98 | +} |
| 99 | + |
| 100 | +async function generateCli() { |
| 101 | + const tools = await fetchTools(); |
| 102 | + // Sort tools by name |
| 103 | + const sortedTools = tools.sort((a, b) => a.name.localeCompare(b.name)); |
| 104 | + |
| 105 | + const staticTools = createTools(parseArguments()); |
| 106 | + const toolNameToCategory = new Map<string, string>(); |
| 107 | + for (const tool of staticTools) { |
| 108 | + toolNameToCategory.set( |
| 109 | + tool.name, |
| 110 | + labels[tool.annotations.category as keyof typeof labels], |
| 111 | + ); |
| 112 | + } |
| 113 | + |
| 114 | + const commands: Record< |
| 115 | + string, |
| 116 | + {description: string; category: string; args: Record<string, CliOption>} |
| 117 | + > = {}; |
| 118 | + |
| 119 | + for (const tool of sortedTools) { |
| 120 | + const options = schemaToCLIOptions(tool.inputSchema); |
| 121 | + const args: Record<string, CliOption> = {}; |
| 122 | + for (const opt of options) { |
| 123 | + args[opt.name] = opt; |
| 124 | + } |
| 125 | + const category = toolNameToCategory.get(tool.name); |
| 126 | + if (!category) { |
| 127 | + throw new Error(`Tool ${tool.name} has no category.`); |
| 128 | + } |
| 129 | + if (!tool.description) { |
| 130 | + throw new Error(`Tool ${tool.name} is missing descripttion`); |
| 131 | + } |
| 132 | + commands[tool.name] = { |
| 133 | + description: tool.description, |
| 134 | + category, |
| 135 | + args, |
| 136 | + }; |
| 137 | + } |
| 138 | + |
| 139 | + const lines: string[] = []; |
| 140 | + lines.push(`/** |
| 141 | + * @license |
| 142 | + * Copyright ${new Date().getFullYear()} Google LLC |
| 143 | + * SPDX-License-Identifier: Apache-2.0 |
| 144 | + */ |
| 145 | +
|
| 146 | +// NOTE: do not edit manually. Auto-generated by 'npm run cli:generate'. |
| 147 | +
|
| 148 | +export interface ArgDef { |
| 149 | + name: string; |
| 150 | + type: string; |
| 151 | + description: string; |
| 152 | + required: boolean; |
| 153 | + default?: string | number | boolean; |
| 154 | + enum?: ReadonlyArray<string | number>; |
| 155 | +} |
| 156 | +export type Commands = Record< |
| 157 | + string, |
| 158 | + { |
| 159 | + description: string; |
| 160 | + category: string; |
| 161 | + args: Record<string, ArgDef> |
| 162 | + } |
| 163 | +>; |
| 164 | +export const commands: Commands = ${JSON.stringify(commands, null, 2)} as const; |
| 165 | +`); |
| 166 | + |
| 167 | + fs.mkdirSync(path.dirname(OUTPUT_PATH), {recursive: true}); |
| 168 | + fs.writeFileSync(OUTPUT_PATH, lines.join('')); |
| 169 | + console.log(`Generated CLI at ${OUTPUT_PATH}`); |
| 170 | +} |
| 171 | + |
| 172 | +generateCli().catch(err => { |
| 173 | + console.error('Error during generation:', err); |
| 174 | + process.exit(1); |
| 175 | +}); |
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