/**
* Claude Code configuration for MCP servers.
* Uses the `claude mcp add/remove` CLI commands.
*/
import { execSync } from "node:child_process";
import { join } from "node:path";
import type { McpServerConfig, ResolvedEnvVars } from "./types.ts";
export async function updateClaudeCodeConfig(
config: McpServerConfig,
envVars: ResolvedEnvVars,
): Promise<void> {
const distPath = join(config.projectDir, "dist/index.js");
// Build env flags for the claude mcp add command
const envFlags = Object.entries(envVars)
.map(([key, value]) => `-e ${key}=${value}`)
.join(" ");
// First, try to remove existing config (ignore errors if it doesn't exist)
try {
console.log(` Removing existing ${config.name} config if present...`);
execSync(`claude mcp remove ${config.name} --scope user`, {
stdio: "pipe",
});
console.log(" Removed existing config");
} catch {
// Ignore - server might not exist yet
console.log(" No existing config found");
}
// Now add the config
try {
const command =
`claude mcp add ${config.name} --scope user ${envFlags} -- bun ${distPath} start`.trim();
console.log(` Adding ${config.name} to Claude Code...`);
execSync(command, { stdio: "pipe" });
console.log(" Updated Claude Code config");
} catch (error: unknown) {
const execError = error as {
status?: number;
message?: string;
stderr?: Buffer;
};
if (execError.status === 127) {
console.error(
" Claude Code CLI not found. Please install it first: https://claude.ai/code",
);
} else {
// Don't print the full error message as it may contain API keys
console.error(" Failed to add MCP server to Claude Code");
const firstEnvVar = config.envVars?.[0];
const envExample = firstEnvVar
? ` -e ${firstEnvVar.name}=<your-key>`
: "";
console.error(
` Try running manually: claude mcp add ${config.name} --scope user${envExample} -- bun ${distPath} start`,
);
}
throw error;
}
}
