openapi-directory-mcp
Version:
Model Context Protocol server for accessing enhanced triple-source OpenAPI directory (APIs.guru + additional APIs + custom imports)
63 lines • 2.13 kB
JavaScript
/**
* MCP-compliant logger that ensures protocol compliance
*
* MCP servers must NOT write anything to stdout/stderr except JSON-RPC messages.
* This logger detects MCP mode and silences all console output to prevent protocol breaks.
*/
export class MCPLogger {
static isMCPMode() {
// Detect if running as MCP server by checking if we're connected to stdio transport
// When running via CLI, process.argv will have command arguments
// When running as MCP server, it's just the script path
return process.argv.length <= 2 && !process.env.MCP_DISABLE_LOGGING;
}
static log(...args) {
if (!this.isMCPMode()) {
// eslint-disable-next-line no-console
console.log(...args);
}
}
static error(...args) {
if (!this.isMCPMode()) {
// eslint-disable-next-line no-console
console.error(...args);
}
}
static warn(...args) {
if (!this.isMCPMode()) {
// eslint-disable-next-line no-console
console.warn(...args);
}
}
static info(...args) {
if (!this.isMCPMode()) {
// eslint-disable-next-line no-console
console.info(...args);
}
}
static debug(...args) {
if (!this.isMCPMode()) {
// eslint-disable-next-line no-console
console.debug(...args);
}
}
/**
* Override global console methods to ensure MCP compliance
*/
static initializeMCPCompliance() {
if (this.isMCPMode()) {
// In MCP mode, silence all console output
// eslint-disable-next-line no-console
console.log = () => { };
// eslint-disable-next-line no-console
console.error = () => { };
// eslint-disable-next-line no-console
console.warn = () => { };
// eslint-disable-next-line no-console
console.info = () => { };
// eslint-disable-next-line no-console
console.debug = () => { };
}
}
}
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