Refactor config

2026-05-08 12:01:28 +00:00 · 2026-03-12 16:20:46 +07:00
parent c893aeaa4d
commit b0c6b61398
35 changed files with 575 additions and 650 deletions
--- a/cloud/src/handlers/chat.js
+++ b/cloud/src/handlers/chat.js
@@ -3,7 +3,7 @@ import { handleChatCore } from "open-sse/handlers/chatCore.js";
 import { errorResponse } from "open-sse/utils/error.js";
 import { checkFallbackError, isAccountUnavailable, getUnavailableUntil, getEarliestRateLimitedUntil, formatRetryAfter } from "open-sse/services/accountFallback.js";
 import { getComboModelsFromData, handleComboChat } from "open-sse/services/combo.js";
-import { HTTP_STATUS } from "open-sse/config/constants.js";
+import { HTTP_STATUS } from "open-sse/config/runtimeConfig.js";
 import * as log from "../utils/logger.js";
 import { refreshTokenByProvider } from "../services/tokenRefresh.js";
 import { parseApiKey, extractBearerToken } from "../utils/apiKey.js";
--- a/cloud/src/handlers/embeddings.js
+++ b/cloud/src/handlers/embeddings.js
@@ -8,7 +8,7 @@ import {
  getUnavailableUntil,
  formatRetryAfter
 } from "open-sse/services/accountFallback.js";
-import { HTTP_STATUS } from "open-sse/config/constants.js";
+import { HTTP_STATUS } from "open-sse/config/runtimeConfig.js";
 import * as log from "../utils/logger.js";
 import { parseApiKey, extractBearerToken } from "../utils/apiKey.js";
 import { getMachineData, saveMachineData } from "../services/storage.js";
--- a/open-sse/config/appConstants.js
+++ b/open-sse/config/appConstants.js
@@ -0,0 +1,133 @@
+import { platform, arch } from "os";
+
+// === Gemini CLI ===
+export const GEMINI_CLI_VERSION = "0.31.0";
+export const GEMINI_CLI_API_CLIENT = "google-genai-sdk/1.41.0 gl-node/v22.19.0";
+
+export function geminiCLIUserAgent(model = "unknown") {
+  const os = platform() === "win32" ? "windows" : platform();
+  return `GeminiCLI/${GEMINI_CLI_VERSION}/${model || "unknown"} (${os}; ${arch()})`;
+}
+
+// === GitHub Copilot ===
+export const GITHUB_COPILOT = {
+  VSCODE_VERSION: "1.110.0",
+  COPILOT_CHAT_VERSION: "0.38.0",
+  USER_AGENT: "GitHubCopilotChat/0.38.0",
+  API_VERSION: "2025-04-01",
+};
+
+// === Antigravity enums ===
+export const IDE_TYPE = {
+  UNSPECIFIED: 0,
+  JETSKI: 10,
+  ANTIGRAVITY: 9,
+  PLUGINS: 7
+};
+
+export const PLATFORM = {
+  UNSPECIFIED: 0,
+  DARWIN_AMD64: 1,
+  DARWIN_ARM64: 2,
+  LINUX_AMD64: 3,
+  LINUX_ARM64: 4,
+  WINDOWS_AMD64: 5
+};
+
+export const PLUGIN_TYPE = {
+  UNSPECIFIED: 0,
+  CLOUD_CODE: 1,
+  GEMINI: 2
+};
+
+export function getPlatformEnum() {
+  const os = platform();
+  const architecture = arch();
+  if (os === "darwin") return architecture === "arm64" ? PLATFORM.DARWIN_ARM64 : PLATFORM.DARWIN_AMD64;
+  if (os === "linux") return architecture === "arm64" ? PLATFORM.LINUX_ARM64 : PLATFORM.LINUX_AMD64;
+  if (os === "win32") return PLATFORM.WINDOWS_AMD64;
+  return PLATFORM.UNSPECIFIED;
+}
+
+export function getPlatformUserAgent() {
+  return `antigravity/1.104.0 ${platform()}/${arch()}`;
+}
+
+export const CLIENT_METADATA = {
+  ideType: IDE_TYPE.ANTIGRAVITY,
+  platform: getPlatformEnum(),
+  pluginType: PLUGIN_TYPE.GEMINI
+};
+
+// Internal anti-loop header
+export const INTERNAL_REQUEST_HEADER = { name: "x-request-source", value: "local" };
+
+// Antigravity chat/stream headers
+export const ANTIGRAVITY_HEADERS = {
+  "X-Client-Name": "antigravity",
+  "X-Client-Version": "1.107.0",
+  "x-goog-api-client": "gl-node/18.18.2 fire/0.8.6 grpc/1.10.x",
+  "User-Agent": "antigravity/1.107.0 darwin/arm64"
+};
+
+// Cloud Code Assist API
+export const CLOUD_CODE_API = {
+  loadCodeAssist: "https://cloudcode-pa.googleapis.com/v1internal:loadCodeAssist",
+  onboardUser: "https://cloudcode-pa.googleapis.com/v1internal:onboardUser",
+};
+
+export const LOAD_CODE_ASSIST_HEADERS = {
+  "Content-Type": "application/json",
+  "User-Agent": "google-api-nodejs-client/9.15.1",
+  "X-Goog-Api-Client": "google-cloud-sdk vscode_cloudshelleditor/0.1",
+  "Client-Metadata": JSON.stringify({ ideType: "IDE_UNSPECIFIED", platform: "PLATFORM_UNSPECIFIED", pluginType: "GEMINI" }),
+};
+
+export const LOAD_CODE_ASSIST_METADATA = {
+  ideType: "IDE_UNSPECIFIED",
+  platform: "PLATFORM_UNSPECIFIED",
+  pluginType: "GEMINI",
+};
+
+// System prompts
+export const CLAUDE_SYSTEM_PROMPT = "You are a Claude agent, built on Anthropic's Claude Agent SDK.";
+export const ANTIGRAVITY_DEFAULT_SYSTEM = "You are Antigravity, a powerful agentic AI coding assistant designed by the Google Deepmind team working on Advanced Agentic Coding.You are pair programming with a USER to solve their coding task. The task may require creating a new codebase, modifying or debugging an existing codebase, or simply answering a question.**Absolute paths only****Proactiveness**";
+
+// OAuth endpoints
+export const OAUTH_ENDPOINTS = {
+  google: {
+    token: "https://oauth2.googleapis.com/token",
+    auth: "https://accounts.google.com/o/oauth2/auth"
+  },
+  openai: {
+    token: "https://auth.openai.com/oauth/token",
+    auth: "https://auth.openai.com/oauth/authorize"
+  },
+  anthropic: {
+    token: "https://api.anthropic.com/v1/oauth/token",
+    auth: "https://api.anthropic.com/v1/oauth/authorize"
+  },
+  qwen: {
+    token: "https://chat.qwen.ai/api/v1/oauth2/token",
+    auth: "https://chat.qwen.ai/api/v1/oauth2/device/code"
+  },
+  iflow: {
+    token: "https://iflow.cn/oauth/token",
+    auth: "https://iflow.cn/oauth"
+  },
+  github: {
+    token: "https://github.com/login/oauth/access_token",
+    auth: "https://github.com/login/oauth/authorize",
+    deviceCode: "https://github.com/login/device/code"
+  }
+};
+
+// Generate Kimi OAuth custom headers
+export function buildKimiHeaders() {
+  return {
+    "X-Msh-Platform": "9router",
+    "X-Msh-Version": "2.1.2",
+    "X-Msh-Device-Model": typeof process !== "undefined" ? `${process.platform} ${process.arch}` : "unknown",
+    "X-Msh-Device-Id": `kimi-${Date.now()}`
+  };
+}
--- a/open-sse/config/constants.js
+++ b/open-sse/config/constants.js
@@ -1,593 +1,4 @@
-import { platform, arch } from "os";
-
-function mapStainlessOs() {
-  switch (platform()) {
-    case "darwin": return "MacOS";
-    case "win32": return "Windows";
-    case "linux": return "Linux";
-    case "freebsd": return "FreeBSD";
-    default: return `Other::${platform()}`;
-  }
-}
-
-function mapStainlessArch() {
-  switch (arch()) {
-    case "x64": return "x64";
-    case "arm64": return "arm64";
-    case "ia32": return "x86";
-    default: return `other::${arch()}`;
-  }
-}
-
-// === Gemini CLI Version Constants ===
-export const GEMINI_CLI_VERSION = "0.31.0";
-export const GEMINI_CLI_API_CLIENT = "google-genai-sdk/1.41.0 gl-node/v22.19.0";
-
-function mapGeminiCLIOs() {
-  switch (platform()) {
-    case "darwin": return "darwin";
-    case "win32": return "windows";
-    case "linux": return "linux";
-    case "freebsd": return "freebsd";
-    default: return platform();
-  }
-}
-
-function mapGeminiCLIArch() {
-  switch (arch()) {
-    case "x64": return "x64";
-    case "arm64": return "arm64";
-    case "ia32": return "x86";
-    default: return arch();
-  }
-}
-
-/** Returns User-Agent matching native Gemini CLI format: GeminiCLI/<version>/<model> (<os>; <arch>) */
-export function geminiCLIUserAgent(model = "unknown") {
-  return `GeminiCLI/${GEMINI_CLI_VERSION}/${model || "unknown"} (${mapGeminiCLIOs()}; ${mapGeminiCLIArch()})`;
-}
-
-// === GitHub Copilot Version Constants ===
-export const GITHUB_COPILOT = {
-  VSCODE_VERSION: "1.110.0",
-  COPILOT_CHAT_VERSION: "0.38.0",
-  USER_AGENT: "GitHubCopilotChat/0.38.0",
-  API_VERSION: "2025-04-01",
-};
-
-// === Antigravity Binary Alignment: Numeric Enums ===
-// Reference: Antigravity binary analysis - google.internal.cloud.code.v1internal.ClientMetadata
-
-// IDE Type enum (numeric values as expected by Cloud Code API)
-export const IDE_TYPE = {
-  UNSPECIFIED: 0,
-  JETSKI: 10,        // Internal codename for Gemini CLI
-  ANTIGRAVITY: 9,
-  PLUGINS: 7
-};
-
-// Platform enum (as specified in Antigravity binary)
-export const PLATFORM = {
-  UNSPECIFIED: 0,
-  DARWIN_AMD64: 1,
-  DARWIN_ARM64: 2,
-  LINUX_AMD64: 3,
-  LINUX_ARM64: 4,
-  WINDOWS_AMD64: 5
-};
-
-// Plugin type enum (as specified in Antigravity binary)
-export const PLUGIN_TYPE = {
-  UNSPECIFIED: 0,
-  CLOUD_CODE: 1,
-  GEMINI: 2
-};
-
-/**
- * Get the platform enum value based on the current OS.
- * @returns {number} Platform enum value
- */
-export function getPlatformEnum() {
-  const os = platform();
-  const architecture = arch();
-
-  if (os === "darwin") {
-    return architecture === "arm64" ? PLATFORM.DARWIN_ARM64 : PLATFORM.DARWIN_AMD64;
-  } else if (os === "linux") {
-    return architecture === "arm64" ? PLATFORM.LINUX_ARM64 : PLATFORM.LINUX_AMD64;
-  } else if (os === "win32") {
-    return PLATFORM.WINDOWS_AMD64;
-  }
-  return PLATFORM.UNSPECIFIED;
-}
-
-/**
- * Generate platform-specific User-Agent string.
- * @returns {string} User-Agent in format "antigravity/version os/arch"
- */
-export function getPlatformUserAgent() {
-  const os = platform();
-  const architecture = arch();
-  return `antigravity/1.104.0 ${os}/${architecture}`;
-}
-
-// Centralized client metadata (used in request bodies for loadCodeAssist, onboardUser, etc.)
-// Using numeric enum values as expected by the Cloud Code API
-export const CLIENT_METADATA = {
-  ideType: IDE_TYPE.ANTIGRAVITY,   // 9 - identifies as Antigravity client
-  platform: getPlatformEnum(),      // Runtime platform detection
-  pluginType: PLUGIN_TYPE.GEMINI    // 2
-};
-
-// Internal anti-loop header to identify requests originating from this proxy
-export const INTERNAL_REQUEST_HEADER = { name: "x-request-source", value: "local" };
-
-// Antigravity headers (for chat/stream requests)
-export const ANTIGRAVITY_HEADERS = {
-  "X-Client-Name": "antigravity",
-  "X-Client-Version": "1.107.0",
-  "x-goog-api-client": "gl-node/18.18.2 fire/0.8.6 grpc/1.10.x",
-  "User-Agent": "antigravity/1.107.0 darwin/arm64"
-};
-
-// Cloud Code Assist API endpoints (for Project ID discovery)
-export const CLOUD_CODE_API = {
-  loadCodeAssist: "https://cloudcode-pa.googleapis.com/v1internal:loadCodeAssist",
-  onboardUser: "https://cloudcode-pa.googleapis.com/v1internal:onboardUser",
-};
-
-// Headers for loadCodeAssist / onboardUser API calls (matches CLIProxyAPI Go source)
-export const LOAD_CODE_ASSIST_HEADERS = {
-  "Content-Type": "application/json",
-  "User-Agent": "google-api-nodejs-client/9.15.1",
-  "X-Goog-Api-Client": "google-cloud-sdk vscode_cloudshelleditor/0.1",
-  "Client-Metadata": JSON.stringify({ ideType: "IDE_UNSPECIFIED", platform: "PLATFORM_UNSPECIFIED", pluginType: "GEMINI" }),
-};
-
-// Metadata body for loadCodeAssist / onboardUser (string enum, matches CLIProxyAPI Go source)
-export const LOAD_CODE_ASSIST_METADATA = {
-  ideType: "IDE_UNSPECIFIED",
-  platform: "PLATFORM_UNSPECIFIED",
-  pluginType: "GEMINI",
-};
-
-// Provider configurations
-export const PROVIDERS = {
-  claude: {
-    baseUrl: "https://api.anthropic.com/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,oauth-2025-04-20,interleaved-thinking-2025-05-14,fine-grained-tool-streaming-2025-05-14,context-management-2025-06-27,prompt-caching-scope-2026-01-05",
-      "Anthropic-Dangerous-Direct-Browser-Access": "true",
-      "User-Agent": "claude-cli/2.1.63 (external, cli)",
-      "X-App": "cli",
-      "X-Stainless-Helper-Method": "stream",
-      "X-Stainless-Retry-Count": "0",
-      "X-Stainless-Runtime-Version": "v24.3.0",
-      "X-Stainless-Package-Version": "0.74.0",
-      "X-Stainless-Runtime": "node",
-      "X-Stainless-Lang": "js",
-      "X-Stainless-Arch": mapStainlessArch(),
-      "X-Stainless-Os": mapStainlessOs(),
-      "X-Stainless-Timeout": "600"
-    },
-    // Claude OAuth configuration
-    clientId: "9d1c250a-e61b-44d9-88ed-5944d1962f5e",
-    tokenUrl: "https://api.anthropic.com/v1/oauth/token"
-  },
-  gemini: {
-    baseUrl: "https://generativelanguage.googleapis.com/v1beta/models",
-    format: "gemini",
-    clientId: "681255809395-oo8ft2oprdrnp9e3aqf6av3hmdib135j.apps.googleusercontent.com",
-    clientSecret: "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"
-  },
-  "gemini-cli": {
-    baseUrl: "https://cloudcode-pa.googleapis.com/v1internal",
-    format: "gemini-cli",
-    clientId: "681255809395-oo8ft2oprdrnp9e3aqf6av3hmdib135j.apps.googleusercontent.com",
-    clientSecret: "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"
-  },
-  codex: {
-    baseUrl: "https://chatgpt.com/backend-api/codex/responses",
-    format: "openai-responses", // Use OpenAI Responses API format (reuse translator)
-    headers: {
-      "originator": "codex-cli",
-      "User-Agent": "codex-cli/1.0.18 (macOS; arm64)"
-    },
-    // OpenAI OAuth configuration
-    clientId: "app_EMoamEEZ73f0CkXaXp7hrann",
-    clientSecret: "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",
-    tokenUrl: "https://auth.openai.com/oauth/token"
-  },
-  qwen: {
-    baseUrl: "https://portal.qwen.ai/v1/chat/completions",
-    format: "openai",
-    headers: {
-      "User-Agent": "google-api-nodejs-client/9.15.1",
-      "X-Goog-Api-Client": "gl-node/22.17.0"
-    },
-    // Qwen OAuth configuration
-    clientId: "f0304373b74a44d2b584a3fb70ca9e56", // From CLIProxyAPI
-    tokenUrl: "https://chat.qwen.ai/api/v1/oauth2/token",
-    authUrl: "https://chat.qwen.ai/api/v1/oauth2/device/code"
-  },
-  iflow: {
-    baseUrl: "https://apis.iflow.cn/v1/chat/completions",
-    format: "openai",
-    headers: {
-      "User-Agent": "iFlow-Cli"
-    },
-    // iFlow OAuth configuration (from CLIProxyAPI)
-    clientId: "10009311001",
-    clientSecret: "4Z3YjXycVsQvyGF1etiNlIBB4RsqSDtW",
-    tokenUrl: "https://iflow.cn/oauth/token",
-    authUrl: "https://iflow.cn/oauth"
-  },
-  antigravity: {
-    baseUrls: [
-      "https://daily-cloudcode-pa.googleapis.com",
-      "https://cloudcode-pa.googleapis.com",
-    ],
-    format: "antigravity",
-    headers: {
-      "User-Agent": getPlatformUserAgent()
-    },
-    clientId: "1071006060591-tmhssin2h21lcre235vtolojh4g403ep.apps.googleusercontent.com",
-    clientSecret: "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"
-  },
-  openrouter: {
-    baseUrl: "https://openrouter.ai/api/v1/chat/completions",
-    format: "openai",
-    headers: {
-      "HTTP-Referer": "https://endpoint-proxy.local",
-      "X-Title": "Endpoint Proxy"
-    }
-  },
-  openai: {
-    baseUrl: "https://api.openai.com/v1/chat/completions",
-    format: "openai"
-  },
-  glm: {
-    baseUrl: "https://api.z.ai/api/anthropic/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
-    }
-  },
-  "glm-cn": {
-    baseUrl: "https://open.bigmodel.cn/api/coding/paas/v4/chat/completions",
-    format: "openai",
-    headers: {}
-  },
-  kimi: {
-    baseUrl: "https://api.kimi.com/coding/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
-    }
-  },
-  minimax: {
-    baseUrl: "https://api.minimax.io/anthropic/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
-    }
-  },
-  "minimax-cn": {
-    baseUrl: "https://api.minimaxi.com/anthropic/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
-    }
-  },
-  alicode: {
-    baseUrl: "https://coding.dashscope.aliyuncs.com/v1/chat/completions",
-    format: "openai",
-    headers: {}
-  },
-  "alicode-intl": {
-    baseUrl: "https://coding-intl.dashscope.aliyuncs.com/v1/chat/completions",
-    format: "openai",
-    headers: {}
-  },
-  github: {
-    baseUrl: "https://api.githubcopilot.com/chat/completions", // GitHub Copilot API endpoint for chat
-    responsesUrl: "https://api.githubcopilot.com/responses",
-    format: "openai", // GitHub Copilot uses OpenAI-compatible format
-    headers: {
-      "copilot-integration-id": "vscode-chat",
-      "editor-version": `vscode/${GITHUB_COPILOT.VSCODE_VERSION}`,
-      "editor-plugin-version": `copilot-chat/${GITHUB_COPILOT.COPILOT_CHAT_VERSION}`,
-      "user-agent": GITHUB_COPILOT.USER_AGENT,
-      "openai-intent": "conversation-panel",
-      "x-github-api-version": GITHUB_COPILOT.API_VERSION,
-      "x-vscode-user-agent-library-version": "electron-fetch",
-      "X-Initiator": "user",
-      "Accept": "application/json",
-      "Content-Type": "application/json"
-    }
-  },
-  kiro: {
-    baseUrl: "https://codewhisperer.us-east-1.amazonaws.com/generateAssistantResponse",
-    format: "kiro",
-    headers: {
-      "Content-Type": "application/json",
-      "Accept": "application/vnd.amazon.eventstream",
-      "X-Amz-Target": "AmazonCodeWhispererStreamingService.GenerateAssistantResponse",
-      "User-Agent": "AWS-SDK-JS/3.0.0 kiro-ide/1.0.0",
-      "X-Amz-User-Agent": "aws-sdk-js/3.0.0 kiro-ide/1.0.0"
-    },
-    // Kiro OAuth endpoints
-    tokenUrl: "https://prod.us-east-1.auth.desktop.kiro.dev/refreshToken",
-    authUrl: "https://prod.us-east-1.auth.desktop.kiro.dev"
-  },
-  cursor: {
-    baseUrl: "https://api2.cursor.sh",
-    chatPath: "/aiserver.v1.ChatService/StreamUnifiedChatWithTools",
-    format: "cursor",
-    headers: {
-      "connect-accept-encoding": "gzip",
-      "connect-protocol-version": "1",
-      "Content-Type": "application/connect+proto",
-      "User-Agent": "connect-es/1.6.1"
-    },
-    clientVersion: "1.1.3"
-  },
-  "kimi-coding": {
-    baseUrl: "https://api.kimi.com/coding/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
-    },
-    clientId: "17e5f671-d194-4dfb-9706-5516cb48c098",
-    tokenUrl: "https://auth.kimi.com/api/oauth/token",
-    refreshUrl: "https://auth.kimi.com/api/oauth/token"
-  },
-  kilocode: {
-    baseUrl: "https://api.kilo.ai/api/openrouter/chat/completions",
-    format: "openai",
-    headers: {}
-  },
-  cline: {
-    baseUrl: "https://api.cline.bot/api/v1/chat/completions",
-    format: "openai",
-    headers: {
-      "HTTP-Referer": "https://cline.bot",
-      "X-Title": "Cline"
-    },
-    tokenUrl: "https://api.cline.bot/api/v1/auth/token",
-    refreshUrl: "https://api.cline.bot/api/v1/auth/refresh"
-  },
-  nvidia: {
-    baseUrl: "https://integrate.api.nvidia.com/v1/chat/completions",
-    format: "openai"
-  },
-  anthropic: {
-    baseUrl: "https://api.anthropic.com/v1/messages",
-    format: "claude",
-    headers: {
-      "Anthropic-Version": "2023-06-01",
-      "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
-    }
-  },
-  deepseek: {
-    baseUrl: "https://api.deepseek.com/chat/completions",
-    format: "openai"
-  },
-  groq: {
-    baseUrl: "https://api.groq.com/openai/v1/chat/completions",
-    format: "openai"
-  },
-  xai: {
-    baseUrl: "https://api.x.ai/v1/chat/completions",
-    format: "openai"
-  },
-  mistral: {
-    baseUrl: "https://api.mistral.ai/v1/chat/completions",
-    format: "openai"
-  },
-  perplexity: {
-    baseUrl: "https://api.perplexity.ai/chat/completions",
-    format: "openai"
-  },
-  together: {
-    baseUrl: "https://api.together.xyz/v1/chat/completions",
-    format: "openai"
-  },
-  fireworks: {
-    baseUrl: "https://api.fireworks.ai/inference/v1/chat/completions",
-    format: "openai"
-  },
-  cerebras: {
-    baseUrl: "https://api.cerebras.ai/v1/chat/completions",
-    format: "openai"
-  },
-  cohere: {
-    baseUrl: "https://api.cohere.ai/v1/chat/completions",
-    format: "openai"
-  },
-  nebius: {
-    baseUrl: "https://api.studio.nebius.ai/v1/chat/completions",
-    format: "openai"
-  },
-  siliconflow: {
-    baseUrl: "https://api.siliconflow.cn/v1/chat/completions",
-    format: "openai"
-  },
-  hyperbolic: {
-    baseUrl: "https://api.hyperbolic.xyz/v1/chat/completions",
-    format: "openai"
-  },
-  deepgram: {
-    baseUrl: "https://api.deepgram.com/v1/listen",
-    format: "openai"
-  },
-  assemblyai: {
-    baseUrl: "https://api.assemblyai.com/v1/audio/transcriptions",
-    format: "openai"
-  },
-  nanobanana: {
-    baseUrl: "https://api.nanobananaapi.ai/v1/chat/completions",
-    format: "openai"
-  },
-  chutes: {
-    baseUrl: "https://llm.chutes.ai/v1/chat/completions",
-    format: "openai"
-  },
-  ollama: {
-    baseUrl: "https://ollama.com/api/chat",
-    format: "ollama"
-  },
-};
-
-// Claude system prompt
-export const CLAUDE_SYSTEM_PROMPT = "You are a Claude agent, built on Anthropic's Claude Agent SDK.";
-
-// Antigravity default system prompt (required for API to work)
-export const ANTIGRAVITY_DEFAULT_SYSTEM = "You are Antigravity, a powerful agentic AI coding assistant designed by the Google Deepmind team working on Advanced Agentic Coding.You are pair programming with a USER to solve their coding task. The task may require creating a new codebase, modifying or debugging an existing codebase, or simply answering a question.**Absolute paths only****Proactiveness**";
-
-// OAuth endpoints
-export const OAUTH_ENDPOINTS = {
-  google: {
-    token: "https://oauth2.googleapis.com/token",
-    auth: "https://accounts.google.com/o/oauth2/auth"
-  },
-  openai: {
-    token: "https://auth.openai.com/oauth/token",
-    auth: "https://auth.openai.com/oauth/authorize"
-  },
-  anthropic: {
-    token: "https://api.anthropic.com/v1/oauth/token",
-    auth: "https://api.anthropic.com/v1/oauth/authorize"
-  },
-  qwen: {
-    token: "https://chat.qwen.ai/api/v1/oauth2/token", // From CLIProxyAPI
-    auth: "https://chat.qwen.ai/api/v1/oauth2/device/code" // From CLIProxyAPI
-  },
-  iflow: {
-    token: "https://iflow.cn/oauth/token",
-    auth: "https://iflow.cn/oauth"
-  },
-  github: {
-    token: "https://github.com/login/oauth/access_token",
-    auth: "https://github.com/login/oauth/authorize",
-    deviceCode: "https://github.com/login/device/code"
-  }
-};
-
-// Cache TTLs (seconds)
-export const CACHE_TTL = {
-  userInfo: 300,    // 5 minutes
-  modelAlias: 3600  // 1 hour
-};
-
-// Memory management config
-export const MEMORY_CONFIG = {
-  sessionTtlMs: 2 * 60 * 60 * 1000,      // 2 hours per session entry
-  sessionCleanupIntervalMs: 30 * 60 * 1000, // cleanup every 30 minutes
-  dnsCacheTtlMs: 5 * 60 * 1000,           // 5 minutes DNS TTL
-  proxyDispatchersMaxSize: 20,             // max proxy agent instances
-};
-
-// Default max tokens
-export const DEFAULT_MAX_TOKENS = 64000;
-
-// Minimum max tokens for tool calling (to prevent truncated arguments)
-export const DEFAULT_MIN_TOKENS = 32000;
-
-// Retry config for 429 responses (used by BaseExecutor)
-export const RETRY_CONFIG = {
-  maxAttempts: 2,
-  delayMs: 2000
-};
-
-// HTTP status codes
-export const HTTP_STATUS = {
-  BAD_REQUEST: 400,
-  UNAUTHORIZED: 401,
-  PAYMENT_REQUIRED: 402,
-  FORBIDDEN: 403,
-  NOT_FOUND: 404,
-  NOT_ACCEPTABLE: 406,
-  REQUEST_TIMEOUT: 408,
-  RATE_LIMITED: 429,
-  SERVER_ERROR: 500,
-  BAD_GATEWAY: 502,
-  SERVICE_UNAVAILABLE: 503,
-  GATEWAY_TIMEOUT: 504
-};
-
-// OpenAI-compatible error types mapping
-export const ERROR_TYPES = {
-  [HTTP_STATUS.BAD_REQUEST]: { type: "invalid_request_error", code: "bad_request" },
-  [HTTP_STATUS.UNAUTHORIZED]: { type: "authentication_error", code: "invalid_api_key" },
-  [HTTP_STATUS.FORBIDDEN]: { type: "permission_error", code: "insufficient_quota" },
-  [HTTP_STATUS.NOT_FOUND]: { type: "invalid_request_error", code: "model_not_found" },
-  [HTTP_STATUS.NOT_ACCEPTABLE]: { type: "invalid_request_error", code: "model_not_supported" },
-  [HTTP_STATUS.RATE_LIMITED]: { type: "rate_limit_error", code: "rate_limit_exceeded" },
-  [HTTP_STATUS.SERVER_ERROR]: { type: "server_error", code: "internal_server_error" },
-  [HTTP_STATUS.BAD_GATEWAY]: { type: "server_error", code: "bad_gateway" },
-  [HTTP_STATUS.SERVICE_UNAVAILABLE]: { type: "server_error", code: "service_unavailable" },
-  [HTTP_STATUS.GATEWAY_TIMEOUT]: { type: "server_error", code: "gateway_timeout" }
-};
-
-// Default error messages per status code
-export const DEFAULT_ERROR_MESSAGES = {
-  [HTTP_STATUS.BAD_REQUEST]: "Bad request",
-  [HTTP_STATUS.UNAUTHORIZED]: "Invalid API key provided",
-  [HTTP_STATUS.FORBIDDEN]: "You exceeded your current quota",
-  [HTTP_STATUS.NOT_FOUND]: "Model not found",
-  [HTTP_STATUS.NOT_ACCEPTABLE]: "Model not supported",
-  [HTTP_STATUS.RATE_LIMITED]: "Rate limit exceeded",
-  [HTTP_STATUS.SERVER_ERROR]: "Internal server error",
-  [HTTP_STATUS.BAD_GATEWAY]: "Bad gateway - upstream provider error",
-  [HTTP_STATUS.SERVICE_UNAVAILABLE]: "Service temporarily unavailable",
-  [HTTP_STATUS.GATEWAY_TIMEOUT]: "Gateway timeout"
-};
-
-// Exponential backoff config for rate limits (like CLIProxyAPI)
-export const BACKOFF_CONFIG = {
-  base: 1000,              // 1 second base
-  max: 2 * 60 * 1000,      // 2 minutes max
-  maxLevel: 15             // Cap backoff level
-};
-
-// Error-based cooldown times (aligned with CLIProxyAPI)
-export const COOLDOWN_MS = {
-  unauthorized: 2 * 60 * 1000,       // 401 → 30 min
-  paymentRequired: 2 * 60 * 1000,    // 402/403 → 30 min
-  notFound: 2 * 60 * 1000,      // 404 → 2 minutes
-  transient: 30 * 1000,               // 408/500/502/503/504 → 1 min
-  requestNotAllowed: 5 * 1000,        // "Request not allowed" → 5 sec
-  // Legacy aliases for backward compatibility
-  rateLimit: 2 * 60 * 1000,
-  serviceUnavailable: 2 * 1000,
-  authExpired: 2 * 60 * 1000
-};
-
-// Skip patterns - requests containing these texts will bypass provider
-export const SKIP_PATTERNS = [
-  "Please write a 5-10 word title for the following conversation:"
-];
-
-// Generate Kimi OAuth custom headers
-export function buildKimiHeaders() {
-  const deviceId = `kimi-${Date.now()}`;
-  const platform = "9router";
-  const version = "2.1.2";
-  const deviceModel = typeof process !== "undefined" ? `${process.platform} ${process.arch}` : "unknown";
-  
-  return {
-    "X-Msh-Platform": platform,
-    "X-Msh-Version": version,
-    "X-Msh-Device-Model": deviceModel,
-    "X-Msh-Device-Id": deviceId
-  };
-}
-
+// Barrel re-export — consumers can migrate to specific files over time
+export * from "./providers.js";
+export * from "./appConstants.js";
+export * from "./runtimeConfig.js";
--- a/open-sse/config/providerModels.js
+++ b/open-sse/config/providerModels.js
@@ -1,3 +1,5 @@
+import { PROVIDERS } from "./providers.js";
+
 // Provider models - Single source of truth
 // Key = alias (cc, cx, gc, qw, if, ag, gh for OAuth; id for API Key)
 // Field "provider" for special cases (e.g. AntiGravity models that call different backends)
@@ -342,8 +344,8 @@ export function getModelTargetFormat(aliasOrId, modelId) {
  return found?.targetFormat || null;
 }

-// Provider ID to alias mapping
-export const PROVIDER_ID_TO_ALIAS = {
+// OAuth providers that use short aliases (everything else: alias = id)
+const OAUTH_ALIASES = {
  claude: "cc",
  codex: "cx",
  "gemini-cli": "gc",
@@ -356,33 +358,13 @@ export const PROVIDER_ID_TO_ALIAS = {
  "kimi-coding": "kmc",
  kilocode: "kc",
  cline: "cl",
-  openai: "openai",
-  anthropic: "anthropic",
-  gemini: "gemini",
-  openrouter: "openrouter",
-  glm: "glm",
-  "glm-cn": "glm-cn",
-  kimi: "kimi",
-  minimax: "minimax",
-  "minimax-cn": "minimax-cn",
-  alicode: "alicode",
-  "alicode-intl": "alicode-intl",
-  deepseek: "deepseek",
-  groq: "groq",
-  xai: "xai",
-  mistral: "mistral",
-  perplexity: "perplexity",
-  together: "together",
-  fireworks: "fireworks",
-  cerebras: "cerebras",
-  cohere: "cohere",
-  nvidia: "nvidia",
-  nebius: "nebius",
-  siliconflow: "siliconflow",
-  hyperbolic: "hyperbolic",
-  ollama: "ollama",
 };

+// Derived from PROVIDERS — no need to maintain manually
+export const PROVIDER_ID_TO_ALIAS = Object.fromEntries(
+  Object.keys(PROVIDERS).map(id => [id, OAUTH_ALIASES[id] || id])
+);
+
 export function getModelsByProviderId(providerId) {
  const alias = PROVIDER_ID_TO_ALIAS[providerId] || providerId;
  return PROVIDER_MODELS[alias] || [];
--- a/open-sse/config/providers.js
+++ b/open-sse/config/providers.js
@@ -0,0 +1,297 @@
+import { platform, arch } from "os";
+
+// === OS/Arch helpers ===
+function mapStainlessOs() {
+  switch (platform()) {
+    case "darwin": return "MacOS";
+    case "win32": return "Windows";
+    case "linux": return "Linux";
+    case "freebsd": return "FreeBSD";
+    default: return `Other::${platform()}`;
+  }
+}
+
+function mapStainlessArch() {
+  switch (arch()) {
+    case "x64": return "x64";
+    case "arm64": return "arm64";
+    case "ia32": return "x86";
+    default: return `other::${arch()}`;
+  }
+}
+
+// Shared Claude-compatible API headers (reused across claude-format providers)
+const CLAUDE_API_HEADERS = {
+  "Anthropic-Version": "2023-06-01",
+  "Anthropic-Beta": "claude-code-20250219,interleaved-thinking-2025-05-14"
+};
+
+// Shared baseUrls
+const KIMI_CODING_BASE_URL = "https://api.kimi.com/coding/v1/messages";
+
+export const PROVIDERS = {
+  claude: {
+    baseUrl: "https://api.anthropic.com/v1/messages",
+    format: "claude",
+    headers: {
+      "Anthropic-Version": "2023-06-01",
+      "Anthropic-Beta": "claude-code-20250219,oauth-2025-04-20,interleaved-thinking-2025-05-14,fine-grained-tool-streaming-2025-05-14,context-management-2025-06-27,prompt-caching-scope-2026-01-05",
+      "Anthropic-Dangerous-Direct-Browser-Access": "true",
+      "User-Agent": "claude-cli/2.1.63 (external, cli)",
+      "X-App": "cli",
+      "X-Stainless-Helper-Method": "stream",
+      "X-Stainless-Retry-Count": "0",
+      "X-Stainless-Runtime-Version": "v24.3.0",
+      "X-Stainless-Package-Version": "0.74.0",
+      "X-Stainless-Runtime": "node",
+      "X-Stainless-Lang": "js",
+      "X-Stainless-Arch": mapStainlessArch(),
+      "X-Stainless-Os": mapStainlessOs(),
+      "X-Stainless-Timeout": "600"
+    },
+    clientId: "9d1c250a-e61b-44d9-88ed-5944d1962f5e",
+    tokenUrl: "https://api.anthropic.com/v1/oauth/token"
+  },
+  gemini: {
+    baseUrl: "https://generativelanguage.googleapis.com/v1beta/models",
+    format: "gemini",
+    clientId: "681255809395-oo8ft2oprdrnp9e3aqf6av3hmdib135j.apps.googleusercontent.com",
+    clientSecret: "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"
+  },
+  "gemini-cli": {
+    baseUrl: "https://cloudcode-pa.googleapis.com/v1internal",
+    format: "gemini-cli",
+    clientId: "681255809395-oo8ft2oprdrnp9e3aqf6av3hmdib135j.apps.googleusercontent.com",
+    clientSecret: "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"
+  },
+  codex: {
+    baseUrl: "https://chatgpt.com/backend-api/codex/responses",
+    format: "openai-responses",
+    headers: {
+      "originator": "codex-cli",
+      "User-Agent": "codex-cli/1.0.18 (macOS; arm64)"
+    },
+    clientId: "app_EMoamEEZ73f0CkXaXp7hrann",
+    clientSecret: "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",
+    tokenUrl: "https://auth.openai.com/oauth/token"
+  },
+  qwen: {
+    baseUrl: "https://portal.qwen.ai/v1/chat/completions",
+    format: "openai",
+    headers: {
+      "User-Agent": "google-api-nodejs-client/9.15.1",
+      "X-Goog-Api-Client": "gl-node/22.17.0"
+    },
+    clientId: "f0304373b74a44d2b584a3fb70ca9e56",
+    tokenUrl: "https://chat.qwen.ai/api/v1/oauth2/token",
+    authUrl: "https://chat.qwen.ai/api/v1/oauth2/device/code"
+  },
+  iflow: {
+    baseUrl: "https://apis.iflow.cn/v1/chat/completions",
+    format: "openai",
+    headers: { "User-Agent": "iFlow-Cli" },
+    clientId: "10009311001",
+    clientSecret: "4Z3YjXycVsQvyGF1etiNlIBB4RsqSDtW",
+    tokenUrl: "https://iflow.cn/oauth/token",
+    authUrl: "https://iflow.cn/oauth"
+  },
+  antigravity: {
+    baseUrls: [
+      "https://daily-cloudcode-pa.googleapis.com",
+      "https://cloudcode-pa.googleapis.com",
+    ],
+    format: "antigravity",
+    headers: { "User-Agent": `antigravity/1.104.0 ${platform()}/${arch()}` },
+    clientId: "1071006060591-tmhssin2h21lcre235vtolojh4g403ep.apps.googleusercontent.com",
+    clientSecret: "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"
+  },
+  openrouter: {
+    baseUrl: "https://openrouter.ai/api/v1/chat/completions",
+    format: "openai",
+    headers: {
+      "HTTP-Referer": "https://endpoint-proxy.local",
+      "X-Title": "Endpoint Proxy"
+    }
+  },
+  openai: {
+    baseUrl: "https://api.openai.com/v1/chat/completions",
+    format: "openai"
+  },
+  glm: {
+    baseUrl: "https://api.z.ai/api/anthropic/v1/messages",
+    format: "claude",
+    headers: { ...CLAUDE_API_HEADERS }
+  },
+  "glm-cn": {
+    baseUrl: "https://open.bigmodel.cn/api/coding/paas/v4/chat/completions",
+    format: "openai",
+    headers: {}
+  },
+  kimi: {
+    baseUrl: KIMI_CODING_BASE_URL,
+    format: "claude",
+    headers: { ...CLAUDE_API_HEADERS }
+  },
+  minimax: {
+    baseUrl: "https://api.minimax.io/anthropic/v1/messages",
+    format: "claude",
+    headers: { ...CLAUDE_API_HEADERS }
+  },
+  "minimax-cn": {
+    baseUrl: "https://api.minimaxi.com/anthropic/v1/messages",
+    format: "claude",
+    headers: { ...CLAUDE_API_HEADERS }
+  },
+  alicode: {
+    baseUrl: "https://coding.dashscope.aliyuncs.com/v1/chat/completions",
+    format: "openai",
+    headers: {}
+  },
+  "alicode-intl": {
+    baseUrl: "https://coding-intl.dashscope.aliyuncs.com/v1/chat/completions",
+    format: "openai",
+    headers: {}
+  },
+  github: {
+    baseUrl: "https://api.githubcopilot.com/chat/completions",
+    responsesUrl: "https://api.githubcopilot.com/responses",
+    format: "openai",
+    headers: {
+      "copilot-integration-id": "vscode-chat",
+      "editor-version": "vscode/1.110.0",
+      "editor-plugin-version": "copilot-chat/0.38.0",
+      "user-agent": "GitHubCopilotChat/0.38.0",
+      "openai-intent": "conversation-panel",
+      "x-github-api-version": "2025-04-01",
+      "x-vscode-user-agent-library-version": "electron-fetch",
+      "X-Initiator": "user",
+      "Accept": "application/json",
+      "Content-Type": "application/json"
+    }
+  },
+  kiro: {
+    baseUrl: "https://codewhisperer.us-east-1.amazonaws.com/generateAssistantResponse",
+    format: "kiro",
+    headers: {
+      "Content-Type": "application/json",
+      "Accept": "application/vnd.amazon.eventstream",
+      "X-Amz-Target": "AmazonCodeWhispererStreamingService.GenerateAssistantResponse",
+      "User-Agent": "AWS-SDK-JS/3.0.0 kiro-ide/1.0.0",
+      "X-Amz-User-Agent": "aws-sdk-js/3.0.0 kiro-ide/1.0.0"
+    },
+    tokenUrl: "https://prod.us-east-1.auth.desktop.kiro.dev/refreshToken",
+    authUrl: "https://prod.us-east-1.auth.desktop.kiro.dev"
+  },
+  cursor: {
+    baseUrl: "https://api2.cursor.sh",
+    chatPath: "/aiserver.v1.ChatService/StreamUnifiedChatWithTools",
+    format: "cursor",
+    headers: {
+      "connect-accept-encoding": "gzip",
+      "connect-protocol-version": "1",
+      "Content-Type": "application/connect+proto",
+      "User-Agent": "connect-es/1.6.1"
+    },
+    clientVersion: "1.1.3"
+  },
+  "kimi-coding": {
+    baseUrl: KIMI_CODING_BASE_URL,
+    format: "claude",
+    headers: { ...CLAUDE_API_HEADERS },
+    clientId: "17e5f671-d194-4dfb-9706-5516cb48c098",
+    tokenUrl: "https://auth.kimi.com/api/oauth/token",
+    refreshUrl: "https://auth.kimi.com/api/oauth/token"
+  },
+  kilocode: {
+    baseUrl: "https://api.kilo.ai/api/openrouter/chat/completions",
+    format: "openai",
+    headers: {}
+  },
+  cline: {
+    baseUrl: "https://api.cline.bot/api/v1/chat/completions",
+    format: "openai",
+    headers: {
+      "HTTP-Referer": "https://cline.bot",
+      "X-Title": "Cline"
+    },
+    tokenUrl: "https://api.cline.bot/api/v1/auth/token",
+    refreshUrl: "https://api.cline.bot/api/v1/auth/refresh"
+  },
+  nvidia: {
+    baseUrl: "https://integrate.api.nvidia.com/v1/chat/completions",
+    format: "openai"
+  },
+  anthropic: {
+    baseUrl: "https://api.anthropic.com/v1/messages",
+    format: "claude",
+    headers: { ...CLAUDE_API_HEADERS }
+  },
+  deepseek: {
+    baseUrl: "https://api.deepseek.com/chat/completions",
+    format: "openai"
+  },
+  groq: {
+    baseUrl: "https://api.groq.com/openai/v1/chat/completions",
+    format: "openai"
+  },
+  xai: {
+    baseUrl: "https://api.x.ai/v1/chat/completions",
+    format: "openai"
+  },
+  mistral: {
+    baseUrl: "https://api.mistral.ai/v1/chat/completions",
+    format: "openai"
+  },
+  perplexity: {
+    baseUrl: "https://api.perplexity.ai/chat/completions",
+    format: "openai"
+  },
+  together: {
+    baseUrl: "https://api.together.xyz/v1/chat/completions",
+    format: "openai"
+  },
+  fireworks: {
+    baseUrl: "https://api.fireworks.ai/inference/v1/chat/completions",
+    format: "openai"
+  },
+  cerebras: {
+    baseUrl: "https://api.cerebras.ai/v1/chat/completions",
+    format: "openai"
+  },
+  cohere: {
+    baseUrl: "https://api.cohere.ai/v1/chat/completions",
+    format: "openai"
+  },
+  nebius: {
+    baseUrl: "https://api.studio.nebius.ai/v1/chat/completions",
+    format: "openai"
+  },
+  siliconflow: {
+    baseUrl: "https://api.siliconflow.cn/v1/chat/completions",
+    format: "openai"
+  },
+  hyperbolic: {
+    baseUrl: "https://api.hyperbolic.xyz/v1/chat/completions",
+    format: "openai"
+  },
+  deepgram: {
+    baseUrl: "https://api.deepgram.com/v1/listen",
+    format: "openai"
+  },
+  assemblyai: {
+    baseUrl: "https://api.assemblyai.com/v1/audio/transcriptions",
+    format: "openai"
+  },
+  nanobanana: {
+    baseUrl: "https://api.nanobananaapi.ai/v1/chat/completions",
+    format: "openai"
+  },
+  chutes: {
+    baseUrl: "https://llm.chutes.ai/v1/chat/completions",
+    format: "openai"
+  },
+  ollama: {
+    baseUrl: "https://ollama.com/api/chat",
+    format: "ollama"
+  },
+};
--- a/open-sse/config/runtimeConfig.js
+++ b/open-sse/config/runtimeConfig.js
@@ -0,0 +1,92 @@
+// HTTP status codes
+export const HTTP_STATUS = {
+  BAD_REQUEST: 400,
+  UNAUTHORIZED: 401,
+  PAYMENT_REQUIRED: 402,
+  FORBIDDEN: 403,
+  NOT_FOUND: 404,
+  NOT_ACCEPTABLE: 406,
+  REQUEST_TIMEOUT: 408,
+  RATE_LIMITED: 429,
+  SERVER_ERROR: 500,
+  BAD_GATEWAY: 502,
+  SERVICE_UNAVAILABLE: 503,
+  GATEWAY_TIMEOUT: 504
+};
+
+// OpenAI-compatible error types mapping
+export const ERROR_TYPES = {
+  [HTTP_STATUS.BAD_REQUEST]: { type: "invalid_request_error", code: "bad_request" },
+  [HTTP_STATUS.UNAUTHORIZED]: { type: "authentication_error", code: "invalid_api_key" },
+  [HTTP_STATUS.FORBIDDEN]: { type: "permission_error", code: "insufficient_quota" },
+  [HTTP_STATUS.NOT_FOUND]: { type: "invalid_request_error", code: "model_not_found" },
+  [HTTP_STATUS.NOT_ACCEPTABLE]: { type: "invalid_request_error", code: "model_not_supported" },
+  [HTTP_STATUS.RATE_LIMITED]: { type: "rate_limit_error", code: "rate_limit_exceeded" },
+  [HTTP_STATUS.SERVER_ERROR]: { type: "server_error", code: "internal_server_error" },
+  [HTTP_STATUS.BAD_GATEWAY]: { type: "server_error", code: "bad_gateway" },
+  [HTTP_STATUS.SERVICE_UNAVAILABLE]: { type: "server_error", code: "service_unavailable" },
+  [HTTP_STATUS.GATEWAY_TIMEOUT]: { type: "server_error", code: "gateway_timeout" }
+};
+
+// Default error messages per status code
+export const DEFAULT_ERROR_MESSAGES = {
+  [HTTP_STATUS.BAD_REQUEST]: "Bad request",
+  [HTTP_STATUS.UNAUTHORIZED]: "Invalid API key provided",
+  [HTTP_STATUS.FORBIDDEN]: "You exceeded your current quota",
+  [HTTP_STATUS.NOT_FOUND]: "Model not found",
+  [HTTP_STATUS.NOT_ACCEPTABLE]: "Model not supported",
+  [HTTP_STATUS.RATE_LIMITED]: "Rate limit exceeded",
+  [HTTP_STATUS.SERVER_ERROR]: "Internal server error",
+  [HTTP_STATUS.BAD_GATEWAY]: "Bad gateway - upstream provider error",
+  [HTTP_STATUS.SERVICE_UNAVAILABLE]: "Service temporarily unavailable",
+  [HTTP_STATUS.GATEWAY_TIMEOUT]: "Gateway timeout"
+};
+
+// Cache TTLs (seconds)
+export const CACHE_TTL = {
+  userInfo: 300,    // 5 minutes
+  modelAlias: 3600  // 1 hour
+};
+
+// Memory management config
+export const MEMORY_CONFIG = {
+  sessionTtlMs: 2 * 60 * 60 * 1000,
+  sessionCleanupIntervalMs: 30 * 60 * 1000,
+  dnsCacheTtlMs: 5 * 60 * 1000,
+  proxyDispatchersMaxSize: 20,
+};
+
+// Default token limits
+export const DEFAULT_MAX_TOKENS = 64000;
+export const DEFAULT_MIN_TOKENS = 32000;
+
+// Retry config for 429 responses
+export const RETRY_CONFIG = {
+  maxAttempts: 2,
+  delayMs: 2000
+};
+
+// Exponential backoff config for rate limits
+export const BACKOFF_CONFIG = {
+  base: 1000,
+  max: 2 * 60 * 1000,
+  maxLevel: 15
+};
+
+// Error-based cooldown times
+export const COOLDOWN_MS = {
+  unauthorized: 2 * 60 * 1000,
+  paymentRequired: 2 * 60 * 1000,
+  notFound: 2 * 60 * 1000,
+  transient: 30 * 1000,
+  requestNotAllowed: 5 * 1000,
+  // Legacy aliases
+  rateLimit: 2 * 60 * 1000,
+  serviceUnavailable: 2 * 1000,
+  authExpired: 2 * 60 * 1000
+};
+
+// Requests containing these texts will bypass provider
+export const SKIP_PATTERNS = [
+  "Please write a 5-10 word title for the following conversation:"
+];
--- a/open-sse/executors/antigravity.js
+++ b/open-sse/executors/antigravity.js
@@ -1,6 +1,8 @@
 import crypto from "crypto";
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS, OAUTH_ENDPOINTS, HTTP_STATUS, ANTIGRAVITY_HEADERS, INTERNAL_REQUEST_HEADER } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
+import { OAUTH_ENDPOINTS, ANTIGRAVITY_HEADERS, INTERNAL_REQUEST_HEADER } from "../config/appConstants.js";
+import { HTTP_STATUS } from "../config/runtimeConfig.js";
 import { deriveSessionId } from "../utils/sessionManager.js";
 import { proxyAwareFetch } from "../utils/proxyFetch.js";

--- a/open-sse/executors/base.js
+++ b/open-sse/executors/base.js
@@ -1,4 +1,4 @@
-import { HTTP_STATUS, RETRY_CONFIG } from "../config/constants.js";
+import { HTTP_STATUS, RETRY_CONFIG } from "../config/runtimeConfig.js";
 import { proxyAwareFetch } from "../utils/proxyFetch.js";

 /**
--- a/open-sse/executors/codex.js
+++ b/open-sse/executors/codex.js
@@ -1,6 +1,6 @@
 import { BaseExecutor } from "./base.js";
 import { CODEX_DEFAULT_INSTRUCTIONS } from "../config/codexInstructions.js";
-import { PROVIDERS } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
 import { normalizeResponsesInput } from "../translator/helpers/responsesApiHelper.js";

 /**
--- a/open-sse/executors/cursor.js
+++ b/open-sse/executors/cursor.js
@@ -1,5 +1,6 @@
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS, HTTP_STATUS } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
+import { HTTP_STATUS } from "../config/runtimeConfig.js";
 import {
  generateCursorBody,
  parseConnectRPCFrame,
--- a/open-sse/executors/default.js
+++ b/open-sse/executors/default.js
@@ -1,5 +1,6 @@
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS, OAUTH_ENDPOINTS, buildKimiHeaders } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
+import { OAUTH_ENDPOINTS, buildKimiHeaders } from "../config/appConstants.js";
 import { buildClineHeaders } from "../../src/shared/utils/clineAuth.js";

 export class DefaultExecutor extends BaseExecutor {
--- a/open-sse/executors/gemini-cli.js
+++ b/open-sse/executors/gemini-cli.js
@@ -1,5 +1,6 @@
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS, OAUTH_ENDPOINTS, GEMINI_CLI_API_CLIENT, geminiCLIUserAgent } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
+import { OAUTH_ENDPOINTS, GEMINI_CLI_API_CLIENT, geminiCLIUserAgent } from "../config/appConstants.js";

 export class GeminiCLIExecutor extends BaseExecutor {
  constructor() {
--- a/open-sse/executors/github.js
+++ b/open-sse/executors/github.js
@@ -1,5 +1,7 @@
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS, OAUTH_ENDPOINTS, HTTP_STATUS, GITHUB_COPILOT } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
+import { OAUTH_ENDPOINTS, GITHUB_COPILOT } from "../config/appConstants.js";
+import { HTTP_STATUS } from "../config/runtimeConfig.js";
 import { openaiToOpenAIResponsesRequest } from "../translator/request/openai-responses.js";
 import { openaiResponsesToOpenAIResponse } from "../translator/response/openai-responses.js";
 import { initState } from "../translator/index.js";
--- a/open-sse/executors/iflow.js
+++ b/open-sse/executors/iflow.js
@@ -1,6 +1,6 @@
 import crypto from "crypto";
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";

 /**
 * IFlowExecutor - Executor for iFlow API with HMAC-SHA256 signature
--- a/open-sse/executors/kiro.js
+++ b/open-sse/executors/kiro.js
@@ -1,5 +1,5 @@
 import { BaseExecutor } from "./base.js";
-import { PROVIDERS } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
 import { v4 as uuidv4 } from "uuid";
 import { refreshKiroToken } from "../services/tokenRefresh.js";
 import { proxyAwareFetch } from "../utils/proxyFetch.js";
--- a/open-sse/handlers/chatCore.js
+++ b/open-sse/handlers/chatCore.js
@@ -7,7 +7,7 @@ import { refreshWithRetry } from "../services/tokenRefresh.js";
 import { createRequestLogger } from "../utils/requestLogger.js";
 import { getModelTargetFormat, PROVIDER_ID_TO_ALIAS } from "../config/providerModels.js";
 import { createErrorResult, parseUpstreamError, formatProviderError } from "../utils/error.js";
-import { HTTP_STATUS } from "../config/constants.js";
+import { HTTP_STATUS } from "../config/runtimeConfig.js";
 import { handleBypassRequest } from "../utils/bypassHandler.js";
 import { trackPendingRequest, appendRequestLog, saveRequestDetail } from "@/lib/usageDb.js";
 import { getExecutor } from "../executors/index.js";
--- a/open-sse/handlers/chatCore/nonStreamingHandler.js
+++ b/open-sse/handlers/chatCore/nonStreamingHandler.js
@@ -3,7 +3,7 @@ import { needsTranslation } from "../../translator/index.js";
 import { ollamaBodyToOpenAI } from "../../translator/response/ollama-to-openai.js";
 import { addBufferToUsage, filterUsageForFormat } from "../../utils/usageTracking.js";
 import { createErrorResult } from "../../utils/error.js";
-import { HTTP_STATUS } from "../../config/constants.js";
+import { HTTP_STATUS } from "../../config/runtimeConfig.js";
 import { parseSSEToOpenAIResponse } from "./sseToJsonHandler.js";
 import { buildRequestDetail, extractRequestConfig, extractUsageFromResponse, saveUsageStats } from "./requestDetail.js";
 import { appendRequestLog, saveRequestDetail } from "@/lib/usageDb.js";
--- a/open-sse/handlers/chatCore/sseToJsonHandler.js
+++ b/open-sse/handlers/chatCore/sseToJsonHandler.js
@@ -1,6 +1,6 @@
 import { convertResponsesStreamToJson } from "../../transformer/streamToJsonConverter.js";
 import { createErrorResult } from "../../utils/error.js";
-import { HTTP_STATUS } from "../../config/constants.js";
+import { HTTP_STATUS } from "../../config/runtimeConfig.js";
 import { FORMATS } from "../../translator/formats.js";
 import { buildRequestDetail, extractRequestConfig, saveUsageStats } from "./requestDetail.js";
 import { saveRequestDetail, appendRequestLog } from "@/lib/usageDb.js";
--- a/open-sse/handlers/embeddingsCore.js
+++ b/open-sse/handlers/embeddingsCore.js
@@ -1,6 +1,6 @@
 import { getModelTargetFormat, PROVIDER_ID_TO_ALIAS } from "../config/providerModels.js";
 import { createErrorResult, parseUpstreamError, formatProviderError } from "../utils/error.js";
-import { HTTP_STATUS } from "../config/constants.js";
+import { HTTP_STATUS } from "../config/runtimeConfig.js";
 import { getExecutor } from "../executors/index.js";
 import { refreshWithRetry } from "../services/tokenRefresh.js";

--- a/open-sse/index.js
+++ b/open-sse/index.js
@@ -2,7 +2,9 @@
 import "./utils/proxyFetch.js";

 // Config
-export { PROVIDERS, OAUTH_ENDPOINTS, CACHE_TTL, DEFAULT_MAX_TOKENS, CLAUDE_SYSTEM_PROMPT, COOLDOWN_MS, BACKOFF_CONFIG } from "./config/constants.js";
+export { PROVIDERS } from "./config/providers.js";
+export { OAUTH_ENDPOINTS, CLAUDE_SYSTEM_PROMPT } from "./config/appConstants.js";
+export { CACHE_TTL, DEFAULT_MAX_TOKENS, COOLDOWN_MS, BACKOFF_CONFIG } from "./config/runtimeConfig.js";
 export { 
  PROVIDER_MODELS, 
  getProviderModels,
--- a/open-sse/services/accountFallback.js
+++ b/open-sse/services/accountFallback.js
@@ -1,4 +1,4 @@
-import { COOLDOWN_MS, BACKOFF_CONFIG, HTTP_STATUS } from "../config/constants.js";
+import { COOLDOWN_MS, BACKOFF_CONFIG, HTTP_STATUS } from "../config/runtimeConfig.js";

 /**
 * Calculate exponential backoff cooldown for rate limits (429)
--- a/open-sse/services/projectId.js
+++ b/open-sse/services/projectId.js
@@ -8,7 +8,7 @@
 * This significantly reduces the risk of being flagged by Google's anti-abuse systems.
 */

-import {CLOUD_CODE_API, LOAD_CODE_ASSIST_HEADERS, LOAD_CODE_ASSIST_METADATA} from "../config/constants.js";
+import { CLOUD_CODE_API, LOAD_CODE_ASSIST_HEADERS, LOAD_CODE_ASSIST_METADATA } from "../config/appConstants.js";

 // ─── Cache ────────────────────────────────────────────────────────────────────
 // connectionId -> { projectId: string, fetchedAt: number }
--- a/open-sse/services/provider.js
+++ b/open-sse/services/provider.js
@@ -1,4 +1,4 @@
-import { PROVIDERS } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
 import { buildClineHeaders } from "../../src/shared/utils/clineAuth.js";

 const OPENAI_COMPATIBLE_PREFIX = "openai-compatible-";
--- a/open-sse/services/tokenRefresh.js
+++ b/open-sse/services/tokenRefresh.js
@@ -1,4 +1,5 @@
-import { PROVIDERS, OAUTH_ENDPOINTS, GITHUB_COPILOT } from "../config/constants.js";
+import { PROVIDERS } from "../config/providers.js";
+import { OAUTH_ENDPOINTS, GITHUB_COPILOT } from "../config/appConstants.js";

 // Token expiry buffer (refresh if expires within 5 minutes)
 export const TOKEN_EXPIRY_BUFFER_MS = 5 * 60 * 1000;
--- a/open-sse/services/usage.js
+++ b/open-sse/services/usage.js
@@ -2,7 +2,7 @@
 * Usage Fetcher - Get usage data from provider APIs
 */

-import { CLIENT_METADATA, getPlatformUserAgent } from "../config/constants.js";
+import { CLIENT_METADATA, getPlatformUserAgent } from "../config/appConstants.js";

 // GitHub API config
 const GITHUB_CONFIG = {
--- a/open-sse/translator/helpers/maxTokensHelper.js
+++ b/open-sse/translator/helpers/maxTokensHelper.js
@@ -1,4 +1,4 @@
-import { DEFAULT_MAX_TOKENS, DEFAULT_MIN_TOKENS } from "../../config/constants.js";
+import { DEFAULT_MAX_TOKENS, DEFAULT_MIN_TOKENS } from "../../config/runtimeConfig.js";

 /**
 * Adjust max_tokens based on request context
--- a/open-sse/translator/request/openai-to-claude.js
+++ b/open-sse/translator/request/openai-to-claude.js
@@ -1,6 +1,6 @@
 import { register } from "../index.js";
 import { FORMATS } from "../formats.js";
-import { CLAUDE_SYSTEM_PROMPT } from "../../config/constants.js";
+import { CLAUDE_SYSTEM_PROMPT } from "../../config/appConstants.js";
 import { adjustMaxTokens } from "../helpers/maxTokensHelper.js";

 // Empty prefix matches real Claude Code behavior (no tool name prefix).
--- a/open-sse/translator/request/openai-to-gemini.js
+++ b/open-sse/translator/request/openai-to-gemini.js
@@ -1,7 +1,7 @@
 import { register } from "../index.js";
 import { FORMATS } from "../formats.js";
 import { DEFAULT_THINKING_GEMINI_SIGNATURE } from "../../config/defaultThinkingSignature.js";
-import { ANTIGRAVITY_DEFAULT_SYSTEM } from "../../config/constants.js";
+import { ANTIGRAVITY_DEFAULT_SYSTEM } from "../../config/appConstants.js";
 import { openaiToClaudeRequestForAntigravity } from "./openai-to-claude.js";

 function generateUUID() {
--- a/open-sse/utils/bypassHandler.js
+++ b/open-sse/utils/bypassHandler.js
@@ -1,7 +1,7 @@
 import { detectFormat } from "../services/provider.js";
 import { translateResponse, initState } from "../translator/index.js";
 import { FORMATS } from "../translator/formats.js";
-import { SKIP_PATTERNS } from "../config/constants.js";
+import { SKIP_PATTERNS } from "../config/runtimeConfig.js";
 import { formatSSE } from "./stream.js";

 /**
--- a/open-sse/utils/error.js
+++ b/open-sse/utils/error.js
@@ -1,4 +1,4 @@
-import { ERROR_TYPES, DEFAULT_ERROR_MESSAGES } from "../config/constants.js";
+import { ERROR_TYPES, DEFAULT_ERROR_MESSAGES } from "../config/runtimeConfig.js";

 /**
 * Build OpenAI-compatible error response body
--- a/open-sse/utils/proxyFetch.js
+++ b/open-sse/utils/proxyFetch.js
@@ -1,4 +1,4 @@
-import { MEMORY_CONFIG } from "../config/constants.js";
+import { MEMORY_CONFIG } from "../config/runtimeConfig.js";

 const isCloud = typeof caches !== "undefined" && typeof caches === "object";

--- a/open-sse/utils/sessionManager.js
+++ b/open-sse/utils/sessionManager.js
@@ -9,7 +9,7 @@
 */

 import crypto from "crypto";
-import { MEMORY_CONFIG } from "../config/constants.js";
+import { MEMORY_CONFIG } from "../config/runtimeConfig.js";

 // Runtime storage: Key = connectionId, Value = { sessionId, lastUsed }
 const runtimeSessionStore = new Map();
--- a/src/sse/handlers/chat.js
+++ b/src/sse/handlers/chat.js
@@ -12,7 +12,7 @@ import { getModelInfo, getComboModels } from "../services/model.js";
 import { handleChatCore } from "open-sse/handlers/chatCore.js";
 import { errorResponse, unavailableResponse } from "open-sse/utils/error.js";
 import { handleComboChat } from "open-sse/services/combo.js";
-import { HTTP_STATUS } from "open-sse/config/constants.js";
+import { HTTP_STATUS } from "open-sse/config/runtimeConfig.js";
 import { detectFormatByEndpoint } from "open-sse/translator/formats.js";
 import * as log from "../utils/logger.js";
 import { updateProviderCredentials, checkAndRefreshToken } from "../services/tokenRefresh.js";
--- a/src/sse/handlers/embeddings.js
+++ b/src/sse/handlers/embeddings.js
@@ -9,7 +9,7 @@ import { getSettings } from "@/lib/localDb";
 import { getModelInfo } from "../services/model.js";
 import { handleEmbeddingsCore } from "open-sse/handlers/embeddingsCore.js";
 import { errorResponse, unavailableResponse } from "open-sse/utils/error.js";
-import { HTTP_STATUS } from "open-sse/config/constants.js";
+import { HTTP_STATUS } from "open-sse/config/runtimeConfig.js";
 import * as log from "../utils/logger.js";
 import { updateProviderCredentials, checkAndRefreshToken } from "../services/tokenRefresh.js";