export class McpError extends Error {
constructor(
message: string,
public readonly code: string,
public readonly details?: Record<string, unknown>
) {
super(message);
this.name = 'McpError';
}
}
export class ConfigError extends McpError {
constructor(message: string, details?: Record<string, unknown>) {
super(message, 'CONFIG_ERROR', details);
this.name = 'ConfigError';
}
}
export class CacheError extends McpError {
constructor(message: string, details?: Record<string, unknown>) {
super(message, 'CACHE_ERROR', details);
this.name = 'CacheError';
}
}
export class ValidationError extends McpError {
constructor(message: string, details?: Record<string, unknown>) {
super(message, 'VALIDATION_ERROR', details);
this.name = 'ValidationError';
}
}
export class GithubApiError extends McpError {
constructor(
message: string,
public readonly statusCode?: number,
details?: Record<string, unknown>
) {
super(message, 'GITHUB_API_ERROR', { ...details, statusCode });
this.name = 'GithubApiError';
}
}
export class ToolError extends McpError {
constructor(
message: string,
public readonly toolName: string,
details?: Record<string, unknown>
) {
super(message, 'TOOL_ERROR', { ...details, toolName });
this.name = 'ToolError';
}
}
export class ResourceError extends McpError {
constructor(
message: string,
public readonly resourceUri: string,
details?: Record<string, unknown>
) {
super(message, 'RESOURCE_ERROR', { ...details, resourceUri });
this.name = 'ResourceError';
}
}
export function formatErrorForClient(error: unknown): string {
if (error instanceof McpError) {
return `[${error.code}] ${error.message}`;
}
if (error instanceof Error) {
return error.message;
}
return String(error);
}
