GitHub MCP Server

export class GitHubError extends Error { constructor(message, status, response) { super(message); this.status = status; this.response = response; this.name = "GitHubError"; } } export class GitHubValidationError extends GitHubError { constructor(message, status, response) { super(message, status, response); this.name = "GitHubValidationError"; } } export class GitHubResourceNotFoundError extends GitHubError { constructor(resource) { super(`Resource not found: ${resource}`, 404, { message: `${resource} not found` }); this.name = "GitHubResourceNotFoundError"; } } export class GitHubAuthenticationError extends GitHubError { constructor(message = "Authentication failed") { super(message, 401, { message }); this.name = "GitHubAuthenticationError"; } } export class GitHubPermissionError extends GitHubError { constructor(message = "Insufficient permissions") { super(message, 403, { message }); this.name = "GitHubPermissionError"; } } export class GitHubRateLimitError extends GitHubError { constructor(message = "Rate limit exceeded", resetAt) { super(message, 429, { message, reset_at: resetAt.toISOString() }); this.resetAt = resetAt; this.name = "GitHubRateLimitError"; } } export class GitHubConflictError extends GitHubError { constructor(message) { super(message, 409, { message }); this.name = "GitHubConflictError"; } } export function isGitHubError(error) { return error instanceof GitHubError; } export function createGitHubError(status, response) { switch (status) { case 401: return new GitHubAuthenticationError(response?.message); case 403: return new GitHubPermissionError(response?.message); case 404: return new GitHubResourceNotFoundError(response?.message || "Resource"); case 409: return new GitHubConflictError(response?.message || "Conflict occurred"); case 422: return new GitHubValidationError(response?.message || "Validation failed", status, response); case 429: return new GitHubRateLimitError(response?.message, new Date(response?.reset_at || Date.now() + 60000)); default: return new GitHubError(response?.message || "GitHub API error", status, response); } }