diff --git a/src/cliproxy/auth/auth-types.ts b/src/cliproxy/auth/auth-types.ts
index acb10a43..90b086d8 100644
--- a/src/cliproxy/auth/auth-types.ts
+++ b/src/cliproxy/auth/auth-types.ts
@@ -5,7 +5,27 @@
  */
 
 import { CLIProxyProvider } from '../types';
-import { AccountInfo } from '../account-manager';
+import type { AccountInfo } from '../account-manager';
+import {
+  CLIPROXY_PROVIDER_IDS,
+  getOAuthCallbackPort,
+  getCLIProxyCallbackProviderName,
+  getCLIProxyAuthUrlProviderName,
+  getProviderAuthFilePrefixes,
+  getProviderTokenTypeValues,
+} from '../provider-capabilities';
+
+function buildProviderMap<T>(
+  valueFor: (provider: CLIProxyProvider) => T
+): Record<CLIProxyProvider, T> {
+  return CLIPROXY_PROVIDER_IDS.reduce(
+    (acc, provider) => {
+      acc[provider] = valueFor(provider);
+      return acc;
+    },
+    {} as Record<CLIProxyProvider, T>
+  );
+}
 
 /**
  * Kiro authentication methods supported by CLIProxyAPIPlus.
@@ -90,17 +110,17 @@ export function toKiroManagementMethod(method: KiroAuthMethod): 'aws' | 'google'
  * - GHCP:   Device Code Flow (polling-based, NO callback port needed)
  * - Kimi:   Device Code Flow (polling-based, NO callback port needed)
  */
-export const OAUTH_CALLBACK_PORTS: Partial<Record<CLIProxyProvider, number>> = {
-  gemini: 8085,
-  codex: 1455,
-  agy: 51121,
-  iflow: 11451,
-  claude: 54545,
-  // kiro: Device Code Flow - no callback port
-  // qwen: Device Code Flow - no callback port
-  // ghcp: Device Code Flow - no callback port
-  // kimi: Device Code Flow - no callback port
-};
+export const OAUTH_CALLBACK_PORTS: Partial<Record<CLIProxyProvider, number>> =
+  CLIPROXY_PROVIDER_IDS.reduce(
+    (acc, provider) => {
+      const callbackPort = getOAuthCallbackPort(provider);
+      if (callbackPort !== null) {
+        acc[provider] = callbackPort;
+      }
+      return acc;
+    },
+    {} as Partial<Record<CLIProxyProvider, number>>
+  );
 
 /**
  * Auth status for a provider
@@ -215,66 +235,34 @@ export const OAUTH_CONFIGS: Record<CLIProxyProvider, ProviderOAuthConfig> = {
  * CLIProxyAPI names auth files with provider prefix (e.g., "antigravity-user@email.json")
  * Note: Gemini tokens may NOT have prefix - CLIProxyAPI uses {email}-{projectID}.json format
  */
-export const PROVIDER_AUTH_PREFIXES: Record<CLIProxyProvider, string[]> = {
-  gemini: ['gemini-', 'google-'],
-  codex: ['codex-', 'openai-'],
-  agy: ['antigravity-', 'agy-'],
-  qwen: ['qwen-'],
-  iflow: ['iflow-'],
-  kiro: ['kiro-', 'aws-', 'codewhisperer-'],
-  ghcp: ['github-copilot-', 'copilot-', 'gh-'],
-  claude: ['claude-', 'anthropic-'],
-  kimi: ['kimi-'],
-};
+export const PROVIDER_AUTH_PREFIXES: Record<CLIProxyProvider, string[]> = buildProviderMap(
+  (provider) => [...getProviderAuthFilePrefixes(provider)]
+);
 
 /**
  * Provider type values inside token JSON files
  * CLIProxyAPI sets "type" field in token JSON (e.g., {"type": "gemini"})
  */
-export const PROVIDER_TYPE_VALUES: Record<CLIProxyProvider, string[]> = {
-  gemini: ['gemini'],
-  codex: ['codex'],
-  agy: ['antigravity'],
-  qwen: ['qwen'],
-  iflow: ['iflow'],
-  kiro: ['kiro', 'codewhisperer'],
-  ghcp: ['github-copilot', 'copilot'],
-  claude: ['claude', 'anthropic'],
-  kimi: ['kimi'],
-};
+export const PROVIDER_TYPE_VALUES: Record<CLIProxyProvider, string[]> = buildProviderMap(
+  (provider) => [...getProviderTokenTypeValues(provider)]
+);
 
 /**
  * Maps CCS provider names to CLIProxyAPI callback provider names
  * Used when submitting OAuth callbacks to CLIProxyAPI management endpoint
  */
-export const CLIPROXY_CALLBACK_PROVIDER_MAP: Record<CLIProxyProvider, string> = {
-  gemini: 'gemini',
-  codex: 'codex',
-  agy: 'antigravity',
-  kiro: 'kiro',
-  ghcp: 'copilot',
-  claude: 'anthropic',
-  qwen: 'qwen',
-  iflow: 'iflow',
-  kimi: 'kimi',
-};
+export const CLIPROXY_CALLBACK_PROVIDER_MAP: Record<CLIProxyProvider, string> = buildProviderMap(
+  (provider) => getCLIProxyCallbackProviderName(provider)
+);
 
 /**
  * Maps CCS provider names to CLIProxyAPI auth-url endpoint prefixes.
  * Used for GET /v0/management/${prefix}-auth-url endpoints.
  * These differ from callback names for some providers (e.g., gemini-cli vs gemini).
  */
-export const CLIPROXY_AUTH_URL_PROVIDER_MAP: Record<CLIProxyProvider, string> = {
-  gemini: 'gemini-cli',
-  codex: 'codex',
-  agy: 'antigravity',
-  kiro: 'kiro',
-  ghcp: 'github',
-  claude: 'anthropic',
-  qwen: 'qwen',
-  iflow: 'iflow',
-  kimi: 'kimi',
-};
+export const CLIPROXY_AUTH_URL_PROVIDER_MAP: Record<CLIProxyProvider, string> = buildProviderMap(
+  (provider) => getCLIProxyAuthUrlProviderName(provider)
+);
 
 /**
  * Get OAuth config for provider
diff --git a/src/cliproxy/auth/provider-refreshers/index.ts b/src/cliproxy/auth/provider-refreshers/index.ts
index abcf3ff8..3e7c763c 100644
--- a/src/cliproxy/auth/provider-refreshers/index.ts
+++ b/src/cliproxy/auth/provider-refreshers/index.ts
@@ -11,6 +11,10 @@
  */
 
 import { CLIProxyProvider } from '../../types';
+import {
+  getTokenRefreshOwnership,
+  isRefreshDelegatedToCLIProxy,
+} from '../../provider-capabilities';
 import { refreshGeminiToken } from '../gemini-token-refresh';
 
 /** Token refresh result */
@@ -22,26 +26,11 @@ export interface ProviderRefreshResult {
   delegated?: boolean;
 }
 
-/**
- * Providers where CLIProxyAPIPlus owns token refresh.
- * CLIProxyAPIPlus runs background refresh automatically (e.g. kiro: every 1 min).
- * CCS should not attempt to refresh these — just trust CLIProxy.
- */
-const CLIPROXY_DELEGATED_REFRESH: CLIProxyProvider[] = [
-  'codex',
-  'agy',
-  'kiro',
-  'ghcp',
-  'qwen',
-  'iflow',
-  'kimi',
-];
-
 /**
  * Check if a provider's token refresh is delegated to CLIProxy
  */
 export function isRefreshDelegated(provider: CLIProxyProvider): boolean {
-  return CLIPROXY_DELEGATED_REFRESH.includes(provider);
+  return isRefreshDelegatedToCLIProxy(provider);
 }
 
 /**
@@ -54,33 +43,28 @@ export async function refreshToken(
   provider: CLIProxyProvider,
   _accountId: string
 ): Promise<ProviderRefreshResult> {
-  switch (provider) {
-    case 'gemini':
-      return await refreshGeminiTokenWrapper();
-
-    case 'codex':
-    case 'agy':
-    case 'qwen':
-    case 'iflow':
-    case 'kiro':
-    case 'ghcp':
-    case 'kimi':
-      // CLIProxyAPIPlus handles refresh for these providers automatically.
-      // No action needed from CCS — report success with delegated flag.
-      return { success: true, delegated: true };
-
-    case 'claude':
-      return {
-        success: false,
-        error: `Token refresh not yet implemented for ${provider}`,
-      };
-
-    default:
-      return {
-        success: false,
-        error: `Unknown provider: ${provider}`,
-      };
+  if (provider === 'gemini') {
+    return await refreshGeminiTokenWrapper();
   }
+
+  if (isRefreshDelegated(provider)) {
+    // CLIProxyAPIPlus handles refresh for these providers automatically.
+    // No action needed from CCS — report success with delegated flag.
+    return { success: true, delegated: true };
+  }
+
+  const ownership = getTokenRefreshOwnership(provider);
+  if (ownership === 'unsupported') {
+    return {
+      success: false,
+      error: `Token refresh not yet implemented for ${provider}`,
+    };
+  }
+
+  return {
+    success: false,
+    error: `Unknown provider: ${provider}`,
+  };
 }
 
 /**
diff --git a/src/cliproxy/provider-capabilities.ts b/src/cliproxy/provider-capabilities.ts
index 4ddd4f27..5d575569 100644
--- a/src/cliproxy/provider-capabilities.ts
+++ b/src/cliproxy/provider-capabilities.ts
@@ -1,11 +1,22 @@
 import type { CLIProxyProvider } from './types';
 
 export type OAuthFlowType = 'authorization_code' | 'device_code';
+export type TokenRefreshOwnership = 'ccs' | 'cliproxy' | 'unsupported';
 
 export interface ProviderCapabilities {
   displayName: string;
   oauthFlow: OAuthFlowType;
   callbackPort: number | null;
+  /** Provider name expected by CLIProxyAPI callback endpoint payload. */
+  callbackProviderName: string;
+  /** Provider name prefix used by CLIProxyAPI auth URL endpoint. */
+  authUrlProviderName: string;
+  /** Who owns token refresh logic for this provider. */
+  refreshOwnership: TokenRefreshOwnership;
+  /** Filename prefixes used to identify auth tokens for this provider. */
+  authFilePrefixes: readonly string[];
+  /** Token JSON "type" values accepted for this provider. */
+  tokenTypeValues: readonly string[];
   /**
    * Alternative provider names used by CLIProxyAPI or stats endpoints.
    * These aliases normalize external names to canonical CCS provider IDs.
@@ -18,54 +29,99 @@ export const PROVIDER_CAPABILITIES: Record<CLIProxyProvider, ProviderCapabilitie
     displayName: 'Google Gemini',
     oauthFlow: 'authorization_code',
     callbackPort: 8085,
+    callbackProviderName: 'gemini',
+    authUrlProviderName: 'gemini-cli',
+    refreshOwnership: 'ccs',
+    authFilePrefixes: ['gemini-', 'google-'],
+    tokenTypeValues: ['gemini'],
     aliases: ['gemini-cli'],
   },
   codex: {
     displayName: 'Codex',
     oauthFlow: 'authorization_code',
     callbackPort: 1455,
+    callbackProviderName: 'codex',
+    authUrlProviderName: 'codex',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['codex-', 'openai-'],
+    tokenTypeValues: ['codex'],
     aliases: [],
   },
   agy: {
     displayName: 'AntiGravity',
     oauthFlow: 'authorization_code',
     callbackPort: 51121,
+    callbackProviderName: 'antigravity',
+    authUrlProviderName: 'antigravity',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['antigravity-', 'agy-'],
+    tokenTypeValues: ['antigravity'],
     aliases: ['antigravity'],
   },
   qwen: {
     displayName: 'Qwen',
     oauthFlow: 'device_code',
     callbackPort: null,
+    callbackProviderName: 'qwen',
+    authUrlProviderName: 'qwen',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['qwen-'],
+    tokenTypeValues: ['qwen'],
     aliases: [],
   },
   iflow: {
     displayName: 'iFlow',
     oauthFlow: 'authorization_code',
     callbackPort: 11451,
+    callbackProviderName: 'iflow',
+    authUrlProviderName: 'iflow',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['iflow-'],
+    tokenTypeValues: ['iflow'],
     aliases: [],
   },
   kiro: {
     displayName: 'Kiro (AWS)',
     oauthFlow: 'device_code',
     callbackPort: null,
+    callbackProviderName: 'kiro',
+    authUrlProviderName: 'kiro',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['kiro-', 'aws-', 'codewhisperer-'],
+    tokenTypeValues: ['kiro', 'codewhisperer'],
     aliases: ['codewhisperer'],
   },
   ghcp: {
     displayName: 'GitHub Copilot (OAuth)',
     oauthFlow: 'device_code',
     callbackPort: null,
+    callbackProviderName: 'copilot',
+    authUrlProviderName: 'github',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['github-copilot-', 'copilot-', 'gh-'],
+    tokenTypeValues: ['github-copilot', 'copilot'],
     aliases: ['github-copilot', 'copilot'],
   },
   claude: {
     displayName: 'Claude',
     oauthFlow: 'authorization_code',
     callbackPort: 54545,
+    callbackProviderName: 'anthropic',
+    authUrlProviderName: 'anthropic',
+    refreshOwnership: 'unsupported',
+    authFilePrefixes: ['claude-', 'anthropic-'],
+    tokenTypeValues: ['claude', 'anthropic'],
     aliases: ['anthropic'],
   },
   kimi: {
     displayName: 'Kimi (Moonshot)',
     oauthFlow: 'device_code',
     callbackPort: null,
+    callbackProviderName: 'kimi',
+    authUrlProviderName: 'kimi',
+    refreshOwnership: 'cliproxy',
+    authFilePrefixes: ['kimi-'],
+    tokenTypeValues: ['kimi'],
     aliases: ['moonshot'],
   },
 };
@@ -113,6 +169,30 @@ export function getOAuthCallbackPort(provider: CLIProxyProvider): number | null
   return PROVIDER_CAPABILITIES[provider].callbackPort;
 }
 
+export function getCLIProxyCallbackProviderName(provider: CLIProxyProvider): string {
+  return PROVIDER_CAPABILITIES[provider].callbackProviderName;
+}
+
+export function getCLIProxyAuthUrlProviderName(provider: CLIProxyProvider): string {
+  return PROVIDER_CAPABILITIES[provider].authUrlProviderName;
+}
+
+export function getTokenRefreshOwnership(provider: CLIProxyProvider): TokenRefreshOwnership {
+  return PROVIDER_CAPABILITIES[provider].refreshOwnership;
+}
+
+export function isRefreshDelegatedToCLIProxy(provider: CLIProxyProvider): boolean {
+  return PROVIDER_CAPABILITIES[provider].refreshOwnership === 'cliproxy';
+}
+
+export function getProviderAuthFilePrefixes(provider: CLIProxyProvider): readonly string[] {
+  return PROVIDER_CAPABILITIES[provider].authFilePrefixes;
+}
+
+export function getProviderTokenTypeValues(provider: CLIProxyProvider): readonly string[] {
+  return PROVIDER_CAPABILITIES[provider].tokenTypeValues;
+}
+
 export function mapExternalProviderName(providerName: string): CLIProxyProvider | null {
   const normalized = providerName.toLowerCase();
   return PROVIDER_ALIAS_MAP.get(normalized) ?? null;