982 lines
30 KiB
JavaScript
982 lines
30 KiB
JavaScript
#!/usr/bin/env node
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/**
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* STDIO entrypoint — for local use with Claude Desktop, Claude Code, etc.
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*
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* Usage:
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* node dist/index.js
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* CLAUDE_CODE_SRC_ROOT=/path/to/src node dist/index.js
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*/
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import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
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import { createServer, validateSrcRoot, SRC_ROOT } from "./server.js";
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async function main() {
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await validateSrcRoot();
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const server = createServer();
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const transport = new StdioServerTransport();
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await server.connect(transport);
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console.error(`Claude Code Explorer MCP (stdio) started — src: ${SRC_ROOT}`);
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}
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main().catch((err) => {
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console.error("Fatal error:", err);
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process.exit(1);
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});
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try {
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return (await fs.stat(p)).isDirectory();
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} catch {
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return false;
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}
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}
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async function fileExists(p: string): Promise<boolean> {
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try {
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return (await fs.stat(p)).isFile();
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} catch {
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return false;
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}
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}
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/** List immediate children of a directory (files & dirs). */
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async function listDir(dir: string): Promise<string[]> {
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try {
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const entries = await fs.readdir(dir, { withFileTypes: true });
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return entries.map((e: { isDirectory(): boolean; name: string }) => (e.isDirectory() ? e.name + "/" : e.name)).sort();
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} catch {
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return [];
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}
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}
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/** Recursively collect all file paths under `root` (relative to root). */
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async function walkFiles(root: string, rel = ""): Promise<string[]> {
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const results: string[] = [];
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let entries;
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try {
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entries = await fs.readdir(path.join(root, rel), { withFileTypes: true });
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} catch {
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return results;
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}
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for (const e of entries) {
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const child = rel ? `${rel}/${e.name}` : e.name;
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if (e.isDirectory()) {
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results.push(...(await walkFiles(root, child)));
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} else {
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results.push(child);
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}
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}
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return results;
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}
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/** Safely resolve a user-supplied relative path under SRC_ROOT. */
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function safePath(relPath: string): string | null {
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const resolved = path.resolve(SRC_ROOT, relPath);
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if (!resolved.startsWith(SRC_ROOT)) return null; // path traversal blocked
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return resolved;
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}
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// ---------------------------------------------------------------------------
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// Tool & Command Metadata
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// ---------------------------------------------------------------------------
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interface ToolInfo {
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name: string;
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directory: string;
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files: string[];
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}
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interface CommandInfo {
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name: string;
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path: string;
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isDirectory: boolean;
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files?: string[];
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}
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async function getToolList(): Promise<ToolInfo[]> {
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const toolsDir = path.join(SRC_ROOT, "tools");
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const entries = await fs.readdir(toolsDir, { withFileTypes: true });
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const tools: ToolInfo[] = [];
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for (const e of entries) {
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if (!e.isDirectory() || e.name === "shared" || e.name === "testing")
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continue;
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const files = await listDir(path.join(toolsDir, e.name));
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tools.push({ name: e.name, directory: `tools/${e.name}`, files });
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}
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return tools.sort((a, b) => a.name.localeCompare(b.name));
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}
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async function getCommandList(): Promise<CommandInfo[]> {
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const cmdsDir = path.join(SRC_ROOT, "commands");
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const entries = await fs.readdir(cmdsDir, { withFileTypes: true });
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const commands: CommandInfo[] = [];
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for (const e of entries) {
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if (e.isDirectory()) {
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const files = await listDir(path.join(cmdsDir, e.name));
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commands.push({
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name: e.name,
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path: `commands/${e.name}`,
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isDirectory: true,
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files,
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});
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} else {
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commands.push({
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name: e.name.replace(/\.(ts|tsx)$/, ""),
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path: `commands/${e.name}`,
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isDirectory: false,
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});
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}
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}
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return commands.sort((a, b) => a.name.localeCompare(b.name));
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}
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// ---------------------------------------------------------------------------
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// Server
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// ---------------------------------------------------------------------------
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const server = new Server(
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{ name: "claude-code-explorer", version: "1.0.0" },
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{
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capabilities: {
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tools: {},
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resources: {},
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prompts: {},
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},
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}
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);
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// ---- Resources -----------------------------------------------------------
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server.setRequestHandler(ListResourcesRequestSchema, async () => ({
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resources: [
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{
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uri: "claude-code://architecture",
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name: "Architecture Overview",
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description: "High-level overview of the Claude Code source architecture",
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mimeType: "text/markdown",
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},
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{
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uri: "claude-code://tools",
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name: "Tool Registry",
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description: "List of all agent tools with their files",
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mimeType: "application/json",
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},
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{
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uri: "claude-code://commands",
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name: "Command Registry",
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description: "List of all slash commands",
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mimeType: "application/json",
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},
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],
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}));
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server.setRequestHandler(ListResourceTemplatesRequestSchema, async () => ({
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resourceTemplates: [
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{
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uriTemplate: "claude-code://source/{path}",
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name: "Source file",
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description: "Read a source file from the Claude Code src/ directory",
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mimeType: "text/plain",
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},
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],
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}));
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server.setRequestHandler(ReadResourceRequestSchema, async (request: { params: { uri: string } }) => {
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const { uri } = request.params;
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if (uri === "claude-code://architecture") {
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const readmePath = path.resolve(SRC_ROOT, "..", "README.md");
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let text: string;
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try {
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text = await fs.readFile(readmePath, "utf-8");
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} catch {
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text = "README.md not found.";
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}
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return { contents: [{ uri, mimeType: "text/markdown", text }] };
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}
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if (uri === "claude-code://tools") {
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const tools = await getToolList();
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return {
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contents: [
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{
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uri,
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mimeType: "application/json",
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text: JSON.stringify(tools, null, 2),
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},
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],
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};
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}
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if (uri === "claude-code://commands") {
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const commands = await getCommandList();
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return {
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contents: [
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{
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uri,
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mimeType: "application/json",
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text: JSON.stringify(commands, null, 2),
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},
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],
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};
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}
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// Source file template
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if (uri.startsWith("claude-code://source/")) {
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const relPath = uri.slice("claude-code://source/".length);
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const abs = safePath(relPath);
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if (!abs) throw new Error("Invalid path");
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const text = await fs.readFile(abs, "utf-8");
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return { contents: [{ uri, mimeType: "text/plain", text }] };
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}
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throw new Error(`Unknown resource: ${uri}`);
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});
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// ---- Tools ---------------------------------------------------------------
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server.setRequestHandler(ListToolsRequestSchema, async () => ({
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tools: [
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{
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name: "list_tools",
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description:
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"List all Claude Code agent tools (BashTool, FileReadTool, etc.) with their source files.",
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inputSchema: { type: "object" as const, properties: {} },
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},
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{
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name: "list_commands",
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description:
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"List all Claude Code slash commands (/commit, /review, /mcp, etc.) with their source files.",
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inputSchema: { type: "object" as const, properties: {} },
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},
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{
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name: "get_tool_source",
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description:
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"Read the full source code of a specific Claude Code tool implementation. Provide the tool directory name (e.g. 'BashTool', 'FileEditTool').",
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inputSchema: {
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type: "object" as const,
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properties: {
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toolName: {
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type: "string",
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description:
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"Tool directory name, e.g. 'BashTool', 'FileReadTool'",
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},
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fileName: {
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type: "string",
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description:
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"Optional: specific file within the tool directory. If omitted, returns the main implementation file.",
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},
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},
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required: ["toolName"],
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},
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},
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{
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name: "get_command_source",
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description:
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"Read the source code of a specific Claude Code slash command. Provide the command name (e.g. 'commit', 'review', 'mcp').",
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inputSchema: {
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type: "object" as const,
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properties: {
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commandName: {
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type: "string",
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description: "Command name, e.g. 'commit', 'review', 'mcp'",
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},
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fileName: {
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type: "string",
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description:
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"Optional: specific file within the command directory.",
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},
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},
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required: ["commandName"],
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},
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},
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{
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name: "read_source_file",
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description:
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"Read any source file from the Claude Code src/ directory by relative path.",
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inputSchema: {
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type: "object" as const,
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properties: {
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path: {
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type: "string",
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description:
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"Relative path from src/, e.g. 'QueryEngine.ts', 'services/mcp/types.ts'",
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},
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startLine: {
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type: "number",
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description: "Optional 1-based start line to read from.",
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},
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endLine: {
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type: "number",
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description: "Optional 1-based end line to read to.",
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},
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},
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required: ["path"],
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},
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},
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{
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name: "search_source",
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description:
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"Search for a pattern (regex or plain text) across the Claude Code source code. Returns matching lines with file paths and line numbers.",
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inputSchema: {
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type: "object" as const,
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properties: {
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pattern: {
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type: "string",
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description: "Search pattern (regex supported).",
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},
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filePattern: {
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type: "string",
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description:
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"Optional glob-like filter for file extensions, e.g. '.ts', '.tsx'.",
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},
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maxResults: {
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type: "number",
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description: "Maximum number of matches to return (default: 50).",
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},
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},
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required: ["pattern"],
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},
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},
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{
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name: "list_directory",
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description:
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"List files and subdirectories within a directory under src/.",
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inputSchema: {
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type: "object" as const,
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properties: {
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path: {
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type: "string",
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description:
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"Relative path from src/, e.g. 'services', 'tools/BashTool'. Use '' for the root.",
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},
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},
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required: ["path"],
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},
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},
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{
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name: "get_architecture",
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description:
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"Get a high-level architecture overview of Claude Code including directory structure, core systems, and key files.",
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inputSchema: { type: "object" as const, properties: {} },
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},
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],
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}));
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server.setRequestHandler(CallToolRequestSchema, async (request: { params: { name: string; arguments?: Record<string, unknown> } }) => {
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const { name, arguments: args } = request.params;
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switch (name) {
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// ---- list_tools ----
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case "list_tools": {
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const tools = await getToolList();
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return {
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content: [{ type: "text" as const, text: JSON.stringify(tools, null, 2) }],
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};
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}
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// ---- list_commands ----
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case "list_commands": {
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const commands = await getCommandList();
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return {
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content: [
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{ type: "text" as const, text: JSON.stringify(commands, null, 2) },
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],
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};
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}
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// ---- get_tool_source ----
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case "get_tool_source": {
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const toolName = (args as Record<string, unknown>)?.toolName as string;
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if (!toolName) throw new Error("toolName is required");
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const toolDir = safePath(`tools/${toolName}`);
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if (!toolDir || !(await dirExists(toolDir)))
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throw new Error(`Tool not found: ${toolName}`);
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let fileName = (args as Record<string, unknown>)?.fileName as
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| string
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| undefined;
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if (!fileName) {
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// Find the main implementation file
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const files = await listDir(toolDir);
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const main =
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files.find(
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(f) => f === `${toolName}.ts` || f === `${toolName}.tsx`
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) ?? files.find((f) => f.endsWith(".ts") || f.endsWith(".tsx"));
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if (!main) throw new Error(`No source files in ${toolName}`);
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fileName = main;
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}
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const filePath = safePath(`tools/${toolName}/${fileName}`);
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if (!filePath || !(await fileExists(filePath)))
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throw new Error(`File not found: tools/${toolName}/${fileName}`);
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const content = await fs.readFile(filePath, "utf-8");
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return {
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content: [
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{
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type: "text" as const,
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text: `// tools/${toolName}/${fileName}\n// ${content.split("\n").length} lines\n\n${content}`,
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},
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],
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};
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}
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// ---- get_command_source ----
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case "get_command_source": {
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const commandName = (args as Record<string, unknown>)
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?.commandName as string;
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if (!commandName) throw new Error("commandName is required");
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// Try directory first, then .ts / .tsx
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const candidates = [
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`commands/${commandName}`,
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`commands/${commandName}.ts`,
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`commands/${commandName}.tsx`,
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];
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let found: string | null = null;
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let isDir = false;
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for (const c of candidates) {
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const abs = safePath(c);
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if (abs && (await dirExists(abs))) {
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found = abs;
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isDir = true;
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break;
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}
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if (abs && (await fileExists(abs))) {
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found = abs;
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break;
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}
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}
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if (!found) throw new Error(`Command not found: ${commandName}`);
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if (!isDir) {
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const content = await fs.readFile(found, "utf-8");
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return {
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content: [{ type: "text" as const, text: content }],
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};
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}
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const reqFile = (args as Record<string, unknown>)?.fileName as
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| string
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| undefined;
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if (reqFile) {
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const filePath = safePath(`commands/${commandName}/${reqFile}`);
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if (!filePath || !(await fileExists(filePath)))
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throw new Error(
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`File not found: commands/${commandName}/${reqFile}`
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);
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const content = await fs.readFile(filePath, "utf-8");
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return { content: [{ type: "text" as const, text: content }] };
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}
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// Return directory listing when no specific file requested
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const files = await listDir(found);
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return {
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content: [
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{
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type: "text" as const,
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text: `Command: ${commandName}\nFiles:\n${files.map((f) => ` ${f}`).join("\n")}`,
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},
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],
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};
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}
|
|
|
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// ---- read_source_file ----
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case "read_source_file": {
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const relPath = (args as Record<string, unknown>)?.path as string;
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if (!relPath) throw new Error("path is required");
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const abs = safePath(relPath);
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if (!abs || !(await fileExists(abs)))
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|
throw new Error(`File not found: ${relPath}`);
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const content = await fs.readFile(abs, "utf-8");
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|
const lines = content.split("\n");
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const start = ((args as Record<string, unknown>)?.startLine as number) ?? 1;
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const end = ((args as Record<string, unknown>)?.endLine as number) ?? lines.length;
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|
const slice = lines.slice(
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Math.max(0, start - 1),
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Math.min(lines.length, end)
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);
|
|
return {
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|
content: [
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{
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|
type: "text" as const,
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text: slice
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|
.map((l: string, i: number) => `${(start + i).toString().padStart(5)} | ${l}`)
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|
.join("\n"),
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
// ---- search_source ----
|
|
case "search_source": {
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const pattern = (args as Record<string, unknown>)?.pattern as string;
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if (!pattern) throw new Error("pattern is required");
|
|
const filePattern = (args as Record<string, unknown>)?.filePattern as
|
|
| string
|
|
| undefined;
|
|
const maxResults =
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|
((args as Record<string, unknown>)?.maxResults as number) ?? 50;
|
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|
|
let regex: RegExp;
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|
try {
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|
regex = new RegExp(pattern, "i");
|
|
} catch {
|
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throw new Error(`Invalid regex pattern: ${pattern}`);
|
|
}
|
|
|
|
const allFiles = await walkFiles(SRC_ROOT);
|
|
const filtered = filePattern
|
|
? allFiles.filter((f) => f.endsWith(filePattern))
|
|
: allFiles;
|
|
|
|
const matches: string[] = [];
|
|
for (const file of filtered) {
|
|
if (matches.length >= maxResults) break;
|
|
const abs = path.join(SRC_ROOT, file);
|
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let content: string;
|
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try {
|
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content = await fs.readFile(abs, "utf-8");
|
|
} catch {
|
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continue;
|
|
}
|
|
const lines = content.split("\n");
|
|
for (let i = 0; i < lines.length; i++) {
|
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if (matches.length >= maxResults) break;
|
|
if (regex.test(lines[i]!)) {
|
|
matches.push(`${file}:${i + 1}: ${lines[i]!.trim()}`);
|
|
}
|
|
}
|
|
}
|
|
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text" as const,
|
|
text: matches.length > 0
|
|
? `Found ${matches.length} match(es):\n\n${matches.join("\n")}`
|
|
: "No matches found.",
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
// ---- list_directory ----
|
|
case "list_directory": {
|
|
const relPath = ((args as Record<string, unknown>)?.path as string) ?? "";
|
|
const abs = safePath(relPath);
|
|
if (!abs || !(await dirExists(abs)))
|
|
throw new Error(`Directory not found: ${relPath}`);
|
|
const entries = await listDir(abs);
|
|
return {
|
|
content: [
|
|
{
|
|
type: "text" as const,
|
|
text: entries.length > 0 ? entries.join("\n") : "(empty directory)",
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
// ---- get_architecture ----
|
|
case "get_architecture": {
|
|
const topLevel = await listDir(SRC_ROOT);
|
|
const tools = await getToolList();
|
|
const commands = await getCommandList();
|
|
|
|
const overview = `# Claude Code Architecture Overview
|
|
|
|
## Source Root
|
|
${SRC_ROOT}
|
|
|
|
## Top-Level Entries
|
|
${topLevel.map((e) => `- ${e}`).join("\n")}
|
|
|
|
## Agent Tools (${tools.length})
|
|
${tools.map((t) => `- **${t.name}** — ${t.files.length} files: ${t.files.join(", ")}`).join("\n")}
|
|
|
|
## Slash Commands (${commands.length})
|
|
${commands.map((c) => `- **${c.name}** ${c.isDirectory ? "(directory)" : "(file)"}${c.files ? ": " + c.files.join(", ") : ""}`).join("\n")}
|
|
|
|
## Key Files
|
|
- **main.tsx** — CLI entrypoint (Commander.js)
|
|
- **QueryEngine.ts** — Core LLM API caller, streaming, tool loops
|
|
- **Tool.ts** — Base tool types, schemas, permission model
|
|
- **commands.ts** — Command registry and loader
|
|
- **tools.ts** — Tool registry and loader
|
|
- **context.ts** — System/user context collection
|
|
|
|
## Core Subsystems
|
|
- **bridge/** — IDE integration (VS Code, JetBrains)
|
|
- **coordinator/** — Multi-agent orchestration
|
|
- **services/mcp/** — MCP client connections
|
|
- **services/api/** — Anthropic API client
|
|
- **plugins/** — Plugin system
|
|
- **skills/** — Skill system
|
|
- **tasks/** — Background task management
|
|
- **server/** — Server/remote mode
|
|
- **entrypoints/mcp.ts** — Built-in MCP server entrypoint
|
|
`;
|
|
return { content: [{ type: "text" as const, text: overview }] };
|
|
}
|
|
|
|
default:
|
|
throw new Error(`Unknown tool: ${name}`);
|
|
}
|
|
});
|
|
|
|
// ---- Prompts -------------------------------------------------------------
|
|
|
|
server.setRequestHandler(ListPromptsRequestSchema, async () => ({
|
|
prompts: [
|
|
{
|
|
name: "explain_tool",
|
|
description:
|
|
"Explain how a specific Claude Code tool works, including its input schema, permissions, and execution flow.",
|
|
arguments: [
|
|
{
|
|
name: "toolName",
|
|
description:
|
|
"Tool directory name, e.g. 'BashTool', 'FileEditTool', 'AgentTool'",
|
|
required: true,
|
|
},
|
|
],
|
|
},
|
|
{
|
|
name: "explain_command",
|
|
description:
|
|
"Explain how a specific Claude Code slash command works.",
|
|
arguments: [
|
|
{
|
|
name: "commandName",
|
|
description:
|
|
"Command name, e.g. 'commit', 'review', 'mcp', 'config'",
|
|
required: true,
|
|
},
|
|
],
|
|
},
|
|
{
|
|
name: "architecture_overview",
|
|
description:
|
|
"Get a guided tour of the Claude Code architecture with explanations of each subsystem.",
|
|
},
|
|
{
|
|
name: "how_does_it_work",
|
|
description:
|
|
"Explain how a specific feature or subsystem of Claude Code works. Good for understanding MCP integration, permission model, tool system, etc.",
|
|
arguments: [
|
|
{
|
|
name: "feature",
|
|
description:
|
|
"Feature or subsystem to explain, e.g. 'permission system', 'MCP client', 'tool deferred loading', 'query engine', 'bridge/IDE integration'",
|
|
required: true,
|
|
},
|
|
],
|
|
},
|
|
{
|
|
name: "compare_tools",
|
|
description:
|
|
"Compare two Claude Code tools side by side — their purpose, inputs, permissions, and implementation patterns.",
|
|
arguments: [
|
|
{
|
|
name: "tool1",
|
|
description: "First tool name, e.g. 'FileReadTool'",
|
|
required: true,
|
|
},
|
|
{
|
|
name: "tool2",
|
|
description: "Second tool name, e.g. 'FileWriteTool'",
|
|
required: true,
|
|
},
|
|
],
|
|
},
|
|
],
|
|
}));
|
|
|
|
server.setRequestHandler(GetPromptRequestSchema, async (request) => {
|
|
const { name, arguments: args } = request.params;
|
|
|
|
switch (name) {
|
|
case "explain_tool": {
|
|
const toolName = args?.toolName;
|
|
if (!toolName) throw new Error("toolName argument is required");
|
|
const toolDir = safePath(`tools/${toolName}`);
|
|
if (!toolDir || !(await dirExists(toolDir)))
|
|
throw new Error(`Tool not found: ${toolName}`);
|
|
|
|
const files = await listDir(toolDir);
|
|
const mainFile =
|
|
files.find((f) => f === `${toolName}.ts` || f === `${toolName}.tsx`) ??
|
|
files.find((f) => f.endsWith(".ts") || f.endsWith(".tsx"));
|
|
|
|
let source = "";
|
|
if (mainFile) {
|
|
const abs = path.join(toolDir, mainFile);
|
|
source = await fs.readFile(abs, "utf-8");
|
|
}
|
|
|
|
return {
|
|
description: `Explanation of the ${toolName} tool`,
|
|
messages: [
|
|
{
|
|
role: "user" as const,
|
|
content: {
|
|
type: "text" as const,
|
|
text: `Analyze and explain this Claude Code tool implementation. Cover:
|
|
1. **Purpose** — What does this tool do?
|
|
2. **Input Schema** — What parameters does it accept?
|
|
3. **Permissions** — What permission checks are performed?
|
|
4. **Execution Flow** — How does it process a request?
|
|
5. **Output** — What does it return?
|
|
6. **Concurrency/Safety** — Is it read-only? Concurrency-safe? Destructive?
|
|
|
|
Files in tools/${toolName}/: ${files.join(", ")}
|
|
|
|
Main source (${mainFile ?? "not found"}):\n\`\`\`typescript\n${source}\n\`\`\``,
|
|
},
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
case "explain_command": {
|
|
const commandName = args?.commandName;
|
|
if (!commandName) throw new Error("commandName argument is required");
|
|
|
|
const candidates = [
|
|
`commands/${commandName}`,
|
|
`commands/${commandName}.ts`,
|
|
`commands/${commandName}.tsx`,
|
|
];
|
|
let found: string | null = null;
|
|
let isDir = false;
|
|
for (const c of candidates) {
|
|
const abs = safePath(c);
|
|
if (abs && (await dirExists(abs))) { found = abs; isDir = true; break; }
|
|
if (abs && (await fileExists(abs))) { found = abs; break; }
|
|
}
|
|
if (!found) throw new Error(`Command not found: ${commandName}`);
|
|
|
|
let source = "";
|
|
let fileList = "";
|
|
if (isDir) {
|
|
const files = await listDir(found);
|
|
fileList = files.join(", ");
|
|
const indexFile = files.find((f) => f === "index.ts" || f === "index.tsx");
|
|
if (indexFile) {
|
|
source = await fs.readFile(path.join(found, indexFile), "utf-8");
|
|
}
|
|
} else {
|
|
source = await fs.readFile(found, "utf-8");
|
|
fileList = path.basename(found);
|
|
}
|
|
|
|
return {
|
|
description: `Explanation of the /${commandName} command`,
|
|
messages: [
|
|
{
|
|
role: "user" as const,
|
|
content: {
|
|
type: "text" as const,
|
|
text: `Analyze and explain this Claude Code slash command. Cover:
|
|
1. **Purpose** — What does /${commandName} do?
|
|
2. **Type** — Is it a 'prompt' command (sends to LLM) or 'action' command (executes directly)?
|
|
3. **Allowed Tools** — What tools can the LLM use when processing this command?
|
|
4. **Arguments** — What arguments does it accept?
|
|
5. **Implementation** — How does it work?
|
|
|
|
Files: ${fileList}
|
|
|
|
Source:\n\`\`\`typescript\n${source}\n\`\`\``,
|
|
},
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
case "architecture_overview": {
|
|
const readmePath = path.resolve(SRC_ROOT, "..", "README.md");
|
|
let readme = "";
|
|
try { readme = await fs.readFile(readmePath, "utf-8"); } catch { /* */ }
|
|
|
|
const topLevel = await listDir(SRC_ROOT);
|
|
const tools = await getToolList();
|
|
const commands = await getCommandList();
|
|
|
|
return {
|
|
description: "Architecture overview of Claude Code",
|
|
messages: [
|
|
{
|
|
role: "user" as const,
|
|
content: {
|
|
type: "text" as const,
|
|
text: `Give a comprehensive guided tour of the Claude Code architecture. Use the following context:
|
|
|
|
## README
|
|
${readme}
|
|
|
|
## src/ top-level files and directories
|
|
${topLevel.join("\n")}
|
|
|
|
## Tools (${tools.length})
|
|
${tools.map((t) => `- ${t.name}: ${t.files.join(", ")}`).join("\n")}
|
|
|
|
## Commands (${commands.length})
|
|
${commands.map((c) => `- ${c.name} ${c.isDirectory ? "(dir)" : "(file)"}`).join("\n")}
|
|
|
|
Explain the overall architecture, how the main subsystems connect, and the request lifecycle from CLI input to tool execution.`,
|
|
},
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
case "how_does_it_work": {
|
|
const feature = args?.feature;
|
|
if (!feature) throw new Error("feature argument is required");
|
|
|
|
// Map well-known features to relevant source paths
|
|
const featureMap: Record<string, string[]> = {
|
|
"permission system": ["utils/permissions/", "hooks/toolPermission/", "Tool.ts"],
|
|
"permissions": ["utils/permissions/", "hooks/toolPermission/", "Tool.ts"],
|
|
"mcp client": ["services/mcp/", "tools/MCPTool/", "tools/ListMcpResourcesTool/", "tools/ReadMcpResourceTool/"],
|
|
"mcp": ["services/mcp/", "entrypoints/mcp.ts", "tools/MCPTool/"],
|
|
"tool system": ["Tool.ts", "tools.ts", "tools/"],
|
|
"tools": ["Tool.ts", "tools.ts"],
|
|
"query engine": ["QueryEngine.ts", "query/"],
|
|
"bridge": ["bridge/"],
|
|
"ide integration": ["bridge/"],
|
|
"context": ["context.ts", "context/"],
|
|
"commands": ["commands.ts", "types/command.ts"],
|
|
"command system": ["commands.ts", "types/command.ts", "commands/"],
|
|
"cost tracking": ["cost-tracker.ts", "costHook.ts"],
|
|
"plugins": ["plugins/"],
|
|
"skills": ["skills/"],
|
|
"tasks": ["tasks.ts", "tasks/", "tools/TaskCreateTool/"],
|
|
"coordinator": ["coordinator/"],
|
|
"multi-agent": ["coordinator/", "tools/AgentTool/"],
|
|
"memory": ["memdir/", "commands/memory/"],
|
|
"voice": ["voice/"],
|
|
"server": ["server/"],
|
|
};
|
|
|
|
const paths = featureMap[feature.toLowerCase()] ?? [];
|
|
let contextFiles = "";
|
|
for (const p of paths) {
|
|
const abs = safePath(p);
|
|
if (!abs) continue;
|
|
try {
|
|
const stat = await fs.stat(abs);
|
|
if (stat.isDirectory()) {
|
|
const files = await listDir(abs);
|
|
contextFiles += `\n### ${p}\nFiles: ${files.join(", ")}\n`;
|
|
} else {
|
|
const content = await fs.readFile(abs, "utf-8");
|
|
// Only include first 200 lines to keep prompt manageable
|
|
const preview = content.split("\n").slice(0, 200).join("\n");
|
|
contextFiles += `\n### ${p} (first 200 lines)\n\`\`\`typescript\n${preview}\n\`\`\`\n`;
|
|
}
|
|
} catch { /* skip */ }
|
|
}
|
|
|
|
return {
|
|
description: `How ${feature} works in Claude Code`,
|
|
messages: [
|
|
{
|
|
role: "user" as const,
|
|
content: {
|
|
type: "text" as const,
|
|
text: `Explain how "${feature}" works in the Claude Code CLI. Use these relevant source files as context:
|
|
${contextFiles || "(No specific source files mapped for this feature. Use the search_source and read_source_file tools to find relevant code.)"}
|
|
|
|
Explain the design, key types/interfaces, data flow, and how it integrates with the rest of the system.`,
|
|
},
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
case "compare_tools": {
|
|
const tool1 = args?.tool1;
|
|
const tool2 = args?.tool2;
|
|
if (!tool1 || !tool2) throw new Error("Both tool1 and tool2 arguments are required");
|
|
|
|
const sources: string[] = [];
|
|
for (const toolName of [tool1, tool2]) {
|
|
const toolDir = safePath(`tools/${toolName}`);
|
|
if (!toolDir || !(await dirExists(toolDir))) {
|
|
sources.push(`// Tool not found: ${toolName}`);
|
|
continue;
|
|
}
|
|
const files = await listDir(toolDir);
|
|
const mainFile =
|
|
files.find((f) => f === `${toolName}.ts` || f === `${toolName}.tsx`) ??
|
|
files.find((f) => f.endsWith(".ts") || f.endsWith(".tsx"));
|
|
if (mainFile) {
|
|
const content = await fs.readFile(path.join(toolDir, mainFile), "utf-8");
|
|
sources.push(`// tools/${toolName}/${mainFile}\n${content}`);
|
|
} else {
|
|
sources.push(`// No main source found for ${toolName}`);
|
|
}
|
|
}
|
|
|
|
return {
|
|
description: `Comparison of ${tool1} vs ${tool2}`,
|
|
messages: [
|
|
{
|
|
role: "user" as const,
|
|
content: {
|
|
type: "text" as const,
|
|
text: `Compare these two Claude Code tools side by side. Analyze:
|
|
1. **Purpose** — What each tool does
|
|
2. **Input Schemas** — How their parameters differ
|
|
3. **Permissions** — Different permission models
|
|
4. **Read-only / Destructive** — Safety characteristics
|
|
5. **Implementation Patterns** — Similarities and differences in how they're built
|
|
|
|
## ${tool1}
|
|
\`\`\`typescript
|
|
${sources[0]}
|
|
\`\`\`
|
|
|
|
## ${tool2}
|
|
\`\`\`typescript
|
|
${sources[1]}
|
|
\`\`\``,
|
|
},
|
|
},
|
|
],
|
|
};
|
|
}
|
|
|
|
default:
|
|
throw new Error(`Unknown prompt: ${name}`);
|
|
}
|
|
});
|
|
|
|
// ---------------------------------------------------------------------------
|
|
// Main
|
|
// ---------------------------------------------------------------------------
|
|
|
|
async function main() {
|
|
// Validate source root exists
|
|
if (!(await dirExists(SRC_ROOT))) {
|
|
console.error(`Error: Claude Code src/ directory not found at ${SRC_ROOT}`);
|
|
console.error(
|
|
"Set CLAUDE_CODE_SRC_ROOT environment variable to the src/ directory path."
|
|
);
|
|
process.exit(1);
|
|
}
|
|
|
|
const transport = new StdioServerTransport();
|
|
await server.connect(transport);
|
|
console.error(`Claude Code Explorer MCP server started (src: ${SRC_ROOT})`);
|
|
}
|
|
|
|
main().catch((err) => {
|
|
console.error("Fatal error:", err);
|
|
process.exit(1);
|
|
});
|
|
|
|
|