refactor(open-sse): dedup format default in PROVIDERS via resolver (C1)

Wrap PROVIDERS in defineProviders() that appends format:"openai" when omitted, removing 72 repeated `format:"openai"` lines. Output stays byte-for-byte identical (verified by tests/__baseline__/verify-providers.mjs deep-equal against snapshot). No runtime fields added; consumers unchanged. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-09-22 13:38:31 +00:00 · 2026-06-13 17:57:51 +07:00
parent 3a26d5fb40
commit f4c39042a0
5 changed files with 628 additions and 75 deletions
@@ -47,7 +47,17 @@ const CLAUDE_CLI_SPOOF_HEADERS = {
 // Shared baseUrls
 const KIMI_CODING_BASE_URL = "https://api.kimi.com/coding/v1/messages";

-export const PROVIDERS = {
+// Apply shared transport defaults without changing output shape
+function defineProviders(raw) {
+  const out = {};
+  for (const [id, cfg] of Object.entries(raw)) {
+    out[id] = { ...cfg };
+    if (!out[id].format) out[id].format = "openai";
+  }
+  return out;
+}
+
+export const PROVIDERS = defineProviders({
  claude: {
    baseUrl: "https://api.anthropic.com/v1/messages",
    format: "claude",
@@ -79,14 +89,12 @@ export const PROVIDERS = {
  },
  qwen: {
    baseUrl: "https://portal.qwen.ai/v1/chat/completions",
-    format: "openai",
    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",
@@ -99,7 +107,6 @@ export const PROVIDERS = {
    // rewriting). baseUrl is kept for compatibility with introspection
    // helpers but the executor ignores it.
    baseUrl: "https://api3.qoder.sh/algo/api/v2/service/pro/sse/agent_chat_generation",
-    format: "openai",
    headers: {},
    // Reasoning models think long before first byte; raise both timeouts.
    timeoutMs: 120000,
@@ -117,7 +124,6 @@ export const PROVIDERS = {
  },
  openrouter: {
    baseUrl: "https://openrouter.ai/api/v1/chat/completions",
-    format: "openai",
    headers: {
      "HTTP-Referer": "https://endpoint-proxy.local",
      "X-Title": "Endpoint Proxy"
@@ -125,11 +131,9 @@ export const PROVIDERS = {
  },
  openai: {
    baseUrl: "https://api.openai.com/v1/chat/completions",
-    format: "openai"
  },
  "vercel-ai-gateway": {
    baseUrl: "https://ai-gateway.vercel.sh/v1/chat/completions",
-    format: "openai",
    retry: { 429: 2 }
  },
  glm: {
@@ -139,7 +143,6 @@ export const PROVIDERS = {
  },
  "glm-cn": {
    baseUrl: "https://open.bigmodel.cn/api/coding/paas/v4/chat/completions",
-    format: "openai",
    headers: {}
  },
  kimi: {
@@ -159,28 +162,23 @@ export const PROVIDERS = {
  },
  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: {}
  },
  "volcengine-ark": {
    baseUrl: "https://ark.cn-beijing.volces.com/api/coding/v3/chat/completions",
-    format: "openai",
    headers: {}
  },
  byteplus: {
    baseUrl: "https://ark.ap-southeast.bytepluses.com/api/coding/v3/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",
@@ -245,17 +243,14 @@ export const PROVIDERS = {
  },
  kilocode: {
    baseUrl: "https://api.kilo.ai/api/openrouter/chat/completions",
-    format: "openai",
    headers: {}
  },
  opencode: {
    baseUrl: "http://localhost:4096/v1/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"
@@ -265,7 +260,6 @@ export const PROVIDERS = {
  },
  nvidia: {
    baseUrl: "https://integrate.api.nvidia.com/v1/chat/completions",
-    format: "openai"
  },
  anthropic: {
    baseUrl: "https://api.anthropic.com/v1/messages",
@@ -274,7 +268,6 @@ export const PROVIDERS = {
  },
  deepseek: {
    baseUrl: "https://api.deepseek.com/chat/completions",
-    format: "openai"
  },
  commandcode: {
    baseUrl: "https://api.commandcode.ai/alpha/generate",
@@ -286,67 +279,52 @@ export const PROVIDERS = {
  },
  groq: {
    baseUrl: "https://api.groq.com/openai/v1/chat/completions",
-    format: "openai"
  },
  xai: {
    baseUrl: "https://api.x.ai/v1/chat/completions",
    responsesUrl: "https://api.x.ai/v1/responses",
-    format: "openai",
    clientId: "b1a00492-073a-47ea-816f-4c329264a828",
    tokenUrl: "https://auth.x.ai/oauth2/token",
    refreshUrl: "https://auth.x.ai/oauth2/token"
  },
  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.com/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",
@@ -366,27 +344,22 @@ export const PROVIDERS = {
  // Uses OpenAI-compatible global endpoint (or rawPredict for Anthropic)
  "vertex-partner": {
    baseUrl: "https://aiplatform.googleapis.com",
-    format: "openai"
  },
  // GitLab Duo - OpenAI-compatible chat endpoint
  gitlab: {
    baseUrl: "https://gitlab.com/api/v4/chat/completions",
-    format: "openai",
  },
  // CodeBuddy (Tencent) - uses device_code polling auth, no chat completions baseUrl needed
  codebuddy: {
    baseUrl: "https://copilot.tencent.com/v1/chat/completions",
-    format: "openai",
  },
  opencode: {
    baseUrl: "https://opencode.ai",
-    format: "openai",
    headers: { "x-opencode-client": "desktop" },
    noAuth: true
  },
  "opencode-go": {
    baseUrl: "https://opencode.ai/zen/go/v1/chat/completions",
-    format: "openai",
    headers: {}
  },
  "grok-web": {
@@ -401,23 +374,19 @@ export const PROVIDERS = {
  },
  azure: {
    baseUrl: "",
-    format: "openai",
    headers: {}
  },
  // Cloudflare Workers AI - {accountId} resolved from credentials.providerSpecificData.accountId
  "cloudflare-ai": {
    baseUrl: "https://api.cloudflare.com/client/v4/accounts/{accountId}/ai/v1/chat/completions",
-    format: "openai"
  },
  "xiaomi-mimo": {
    baseUrl: "https://api.xiaomimimo.com/v1/chat/completions",
-    format: "openai"
  },
-  "mimo-free": { baseUrl: "https://api.xiaomimimo.com/api/free-ai/openai/chat", format: "openai", noAuth: true },
-  mmf: { baseUrl: "https://api.xiaomimimo.com/api/free-ai/openai/chat", format: "openai", noAuth: true },
+  "mimo-free": { baseUrl: "https://api.xiaomimimo.com/api/free-ai/openai/chat", noAuth: true },
+  mmf: { baseUrl: "https://api.xiaomimimo.com/api/free-ai/openai/chat", noAuth: true },
  "xiaomi-tokenplan": {
    baseUrl: "https://token-plan-sgp.xiaomimimo.com/v1/chat/completions",
-    format: "openai"
  },
  // Region map for Xiaomi MiMo Token Plan (keys are cluster-specific)
  // Used by resolveXiaomiTokenplanBaseUrl below
@@ -425,37 +394,37 @@ export const PROVIDERS = {
  // Claude-format with Claude CLI header spoofing (auth: x-api-key)
  agentrouter: { baseUrl: "https://agentrouter.org/v1/messages", format: "claude", headers: { ...CLAUDE_CLI_SPOOF_HEADERS } },
  // OpenAI-compatible (auth: bearer)
-  aimlapi: { baseUrl: "https://api.aimlapi.com/v1/chat/completions", format: "openai" },
-  novita: { baseUrl: "https://api.novita.ai/v3/openai/chat/completions", format: "openai" },
-  modal: { baseUrl: "https://api.modal.com/v1/chat/completions", format: "openai" },
-  reka: { baseUrl: "https://api.reka.ai/v1/chat/completions", format: "openai" },
-  nlpcloud: { baseUrl: "https://api.nlpcloud.io/v1/gpu/chatbot", format: "openai" },
-  bazaarlink: { baseUrl: "https://bazaarlink.ai/api/v1/chat/completions", format: "openai" },
-  completions: { baseUrl: "https://completions.me/api/v1/chat/completions", format: "openai" },
+  aimlapi: { baseUrl: "https://api.aimlapi.com/v1/chat/completions" },
+  novita: { baseUrl: "https://api.novita.ai/v3/openai/chat/completions" },
+  modal: { baseUrl: "https://api.modal.com/v1/chat/completions" },
+  reka: { baseUrl: "https://api.reka.ai/v1/chat/completions" },
+  nlpcloud: { baseUrl: "https://api.nlpcloud.io/v1/gpu/chatbot" },
+  bazaarlink: { baseUrl: "https://bazaarlink.ai/api/v1/chat/completions" },
+  completions: { baseUrl: "https://completions.me/api/v1/chat/completions" },
  // enally uses X-API-Key header (not bearer); handled in validate route
-  enally: { baseUrl: "https://ai.enally.in/v1/chat/completions", format: "openai", authHeader: "x-api-key" },
-  freetheai: { baseUrl: "https://api.freetheai.xyz/v1/chat/completions", format: "openai" },
-  llm7: { baseUrl: "https://api.llm7.io/v1/chat/completions", format: "openai" },
-  lepton: { baseUrl: "https://api.lepton.ai/api/v1/chat/completions", format: "openai" },
-  kluster: { baseUrl: "https://api.kluster.ai/v1/chat/completions", format: "openai" },
-  ai21: { baseUrl: "https://api.ai21.com/studio/v1/chat/completions", format: "openai" },
-  "inference-net": { baseUrl: "https://api.inference.net/v1/chat/completions", format: "openai" },
-  predibase: { baseUrl: "https://serving.app.predibase.com/v1/chat/completions", format: "openai" },
-  bytez: { baseUrl: "https://api.bytez.com/models/v2", format: "openai" },
-  morph: { baseUrl: "https://api.morphllm.com/v1/chat/completions", format: "openai" },
-  longcat: { baseUrl: "https://api.longcat.chat/openai/v1/chat/completions", format: "openai" },
-  puter: { baseUrl: "https://api.puter.com/puterai/openai/v1/chat/completions", format: "openai" },
-  uncloseai: { baseUrl: "https://hermes.ai.unturf.com/v1/chat/completions", format: "openai", noAuth: true },
-  scaleway: { baseUrl: "https://api.scaleway.ai/v1/chat/completions", format: "openai" },
-  deepinfra: { baseUrl: "https://api.deepinfra.com/v1/openai/chat/completions", format: "openai" },
-  sambanova: { baseUrl: "https://api.sambanova.ai/v1/chat/completions", format: "openai" },
-  nscale: { baseUrl: "https://inference.api.nscale.com/v1/chat/completions", format: "openai" },
-  baseten: { baseUrl: "https://inference.baseten.co/v1/chat/completions", format: "openai" },
-  publicai: { baseUrl: "https://api.publicai.co/v1/chat/completions", format: "openai" },
-  "nous-research": { baseUrl: "https://inference-api.nousresearch.com/v1/chat/completions", format: "openai" },
-  glhf: { baseUrl: "https://glhf.chat/api/openai/v1/chat/completions", format: "openai" },
-  blackbox: { baseUrl: "https://api.blackbox.ai/chat/completions", format: "openai" },
-};
+  enally: { baseUrl: "https://ai.enally.in/v1/chat/completions", authHeader: "x-api-key" },
+  freetheai: { baseUrl: "https://api.freetheai.xyz/v1/chat/completions" },
+  llm7: { baseUrl: "https://api.llm7.io/v1/chat/completions" },
+  lepton: { baseUrl: "https://api.lepton.ai/api/v1/chat/completions" },
+  kluster: { baseUrl: "https://api.kluster.ai/v1/chat/completions" },
+  ai21: { baseUrl: "https://api.ai21.com/studio/v1/chat/completions" },
+  "inference-net": { baseUrl: "https://api.inference.net/v1/chat/completions" },
+  predibase: { baseUrl: "https://serving.app.predibase.com/v1/chat/completions" },
+  bytez: { baseUrl: "https://api.bytez.com/models/v2" },
+  morph: { baseUrl: "https://api.morphllm.com/v1/chat/completions" },
+  longcat: { baseUrl: "https://api.longcat.chat/openai/v1/chat/completions" },
+  puter: { baseUrl: "https://api.puter.com/puterai/openai/v1/chat/completions" },
+  uncloseai: { baseUrl: "https://hermes.ai.unturf.com/v1/chat/completions", noAuth: true },
+  scaleway: { baseUrl: "https://api.scaleway.ai/v1/chat/completions" },
+  deepinfra: { baseUrl: "https://api.deepinfra.com/v1/openai/chat/completions" },
+  sambanova: { baseUrl: "https://api.sambanova.ai/v1/chat/completions" },
+  nscale: { baseUrl: "https://inference.api.nscale.com/v1/chat/completions" },
+  baseten: { baseUrl: "https://inference.baseten.co/v1/chat/completions" },
+  publicai: { baseUrl: "https://api.publicai.co/v1/chat/completions" },
+  "nous-research": { baseUrl: "https://inference-api.nousresearch.com/v1/chat/completions" },
+  glhf: { baseUrl: "https://glhf.chat/api/openai/v1/chat/completions" },
+  blackbox: { baseUrl: "https://api.blackbox.ai/chat/completions" },
+});

 export const OLLAMA_LOCAL_DEFAULT_HOST = "http://localhost:11434";

@@ -0,0 +1,536 @@
+{
+  "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,context-management-2025-06-27,prompt-caching-scope-2026-01-05,advanced-tool-use-2025-11-20,effort-2025-11-24,structured-outputs-2025-12-15,fast-mode-2026-02-01,redact-thinking-2026-02-12,token-efficient-tools-2026-03-28",
+      "Anthropic-Dangerous-Direct-Browser-Access": "true",
+      "User-Agent": "claude-cli/2.1.92 (external, sdk-cli)",
+      "X-App": "cli",
+      "X-Stainless-Helper-Method": "stream",
+      "X-Stainless-Retry-Count": "0",
+      "X-Stainless-Runtime-Version": "v24.14.0",
+      "X-Stainless-Package-Version": "0.80.0",
+      "X-Stainless-Runtime": "node",
+      "X-Stainless-Lang": "js",
+      "X-Stainless-Arch": "arm64",
+      "X-Stainless-Os": "MacOS",
+      "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_rs",
+      "User-Agent": "codex_cli_rs/0.136.0"
+    },
+    "clientId": "app_EMoamEEZ73f0CkXaXp7hrann",
+    "tokenUrl": "https://auth.openai.com/oauth/token"
+  },
+  "qwen": {
+    "baseUrl": "https://portal.qwen.ai/v1/chat/completions",
+    "format": "openai",
+    "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"
+  },
+  "qoder": {
+    "baseUrl": "https://api3.qoder.sh/algo/api/v2/service/pro/sse/agent_chat_generation",
+    "format": "openai",
+    "headers": {},
+    "timeoutMs": 120000,
+    "stallTimeoutMs": 120000
+  },
+  "antigravity": {
+    "baseUrls": [
+      "https://daily-cloudcode-pa.googleapis.com",
+      "https://daily-cloudcode-pa.sandbox.googleapis.com"
+    ],
+    "format": "antigravity",
+    "headers": {
+      "User-Agent": "antigravity/1.107.0 darwin/arm64"
+    },
+    "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"
+  },
+  "vercel-ai-gateway": {
+    "baseUrl": "https://ai-gateway.vercel.sh/v1/chat/completions",
+    "format": "openai",
+    "retry": {
+      "429": 2
+    }
+  },
+  "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": {}
+  },
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+}
@@ -0,0 +1,11 @@
+// Snapshot current PROVIDERS output to JSON (run on OLD code before refactor).
+// Usage: node tests/__baseline__/snapshot-providers.mjs
+import { writeFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { dirname, join } from "node:path";
+import { PROVIDERS } from "../../open-sse/config/providers.js";
+
+const here = dirname(fileURLToPath(import.meta.url));
+const out = join(here, "providers-baseline.json");
+writeFileSync(out, JSON.stringify(PROVIDERS, null, 2));
+console.log(`Snapshot ${Object.keys(PROVIDERS).length} providers → ${out}`);
@@ -0,0 +1,37 @@
+// Verify refactored PROVIDERS is byte-for-byte equal to baseline JSON.
+// Exit 1 + print precise per-provider/per-field diff on mismatch.
+import { readFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { dirname, join } from "node:path";
+import { PROVIDERS } from "../../open-sse/config/providers.js";
+
+const here = dirname(fileURLToPath(import.meta.url));
+const baseline = JSON.parse(readFileSync(join(here, "providers-baseline.json"), "utf8"));
+
+// Normalize via JSON roundtrip so function/undefined are dropped identically.
+const current = JSON.parse(JSON.stringify(PROVIDERS));
+
+const diffs = [];
+const allIds = new Set([...Object.keys(baseline), ...Object.keys(current)]);
+for (const id of allIds) {
+  const a = baseline[id];
+  const b = current[id];
+  if (a === undefined) { diffs.push(`+ provider added: ${id}`); continue; }
+  if (b === undefined) { diffs.push(`- provider removed: ${id}`); continue; }
+  const sa = JSON.stringify(a);
+  const sb = JSON.stringify(b);
+  if (sa === sb) continue;
+  const keys = new Set([...Object.keys(a), ...Object.keys(b)]);
+  for (const k of keys) {
+    const va = JSON.stringify(a[k]);
+    const vb = JSON.stringify(b[k]);
+    if (va !== vb) diffs.push(`~ ${id}.${k}: ${va} -> ${vb}`);
+  }
+}
+
+if (diffs.length) {
+  console.error(`❌ PROVIDERS mismatch (${diffs.length} field diffs):`);
+  for (const d of diffs) console.error("  " + d);
+  process.exit(1);
+}
+console.log(`✅ PROVIDERS byte-for-byte equal (${Object.keys(current).length} providers).`);