feat: add Vercel AI Gateway provider

.github/ISSUE_TEMPLATE/bug_report.md

@@ -31,7 +31,7 @@ If applicable, add screenshots to help explain your problem.
 - **OS**: [e.g., macOS 14.0, Ubuntu 22.04, Windows 11]
 - **Node.js version**: [e.g., 20.10.0]
 - **cc-mirror version**: [e.g., 1.0.0]
-- **Provider**: [e.g., zai, minimax, openrouter, ccrouter]
+- **Provider**: [e.g., zai, minimax, openrouter, ccrouter, mirror, vercel-ai-gateway]
 
 ## Additional Context
 

AGENTS.md

@@ -102,12 +102,12 @@ Location: `~/.local/bin/<variant>`
 
 ### Provider Auth Modes
 
-| Provider             | Auth Mode  | Key Variable                |
-| -------------------- | ---------- | --------------------------- |
-| zai, minimax, custom | API Key    | `ANTHROPIC_API_KEY`         |
-| openrouter           | Auth Token | `ANTHROPIC_AUTH_TOKEN`      |
-| ccrouter             | Optional   | placeholder token           |
-| mirror               | None       | user authenticates normally |
+| Provider                      | Auth Mode  | Key Variable                |
+| ----------------------------- | ---------- | --------------------------- |
+| zai, minimax, custom          | API Key    | `ANTHROPIC_API_KEY`         |
+| openrouter, vercel-ai-gateway | Auth Token | `ANTHROPIC_AUTH_TOKEN`      |
+| ccrouter                      | Optional   | placeholder token           |
+| mirror                        | None       | user authenticates normally |
 
 ### Model Mapping (env vars)
 

README.md

@@ -287,14 +287,14 @@ minimax                           # Run MiniMax variant
 ## CLI Options
 
 ```
---provider <name>        mirror | zai | minimax | openrouter | ccrouter | custom
+--provider <name>        mirror | zai | minimax | openrouter | ccrouter | vercel-ai-gateway | custom
 --name <name>            Variant name (becomes the CLI command)
 --api-key <key>          Provider API key
 --base-url <url>         Custom API endpoint
 --model-sonnet <name>    Map to sonnet model
 --model-opus <name>      Map to opus model
 --model-haiku <name>     Map to haiku model
---brand <preset>         Theme: auto | zai | minimax | openrouter | ccrouter | mirror
+--brand <preset>         Theme: auto | zai | minimax | openrouter | ccrouter | mirror | vercel-ai-gateway
 --no-team-mode           Disable team mode (not recommended)
 --no-tweak               Skip tweakcc theme
 --no-prompt-pack         Skip provider prompt pack

docs/architecture/overview.md

@@ -64,15 +64,16 @@ src/
 │   └── prompt-pack/       # System prompt overlays
 │
 ├── providers/              # Provider templates
-│   └── index.ts           # zai, minimax, openrouter, ccrouter, mirror
+│   └── index.ts           # zai, minimax, openrouter, ccrouter, mirror, vercel-ai-gateway
 │
 └── brands/                 # Theme presets
     ├── index.ts           # Brand registry
     ├── zai.ts             # Gold theme
     ├── minimax.ts         # Coral theme
     ├── openrouter.ts      # Teal theme
     ├── ccrouter.ts        # Sky theme
-    └── mirror.ts          # Silver/chrome theme
+    ├── mirror.ts          # Silver/chrome theme
+    └── vercel.ts          # Vercel dark theme
 ```
 
 ---

docs/features/mirror-claude.md

@@ -70,20 +70,20 @@ No API key required at setup. When you run `mclaude`, authenticate via:
 ## 📊 Provider Comparison
 
 ```
-┌──────────────────────────────────────────────────────────────────────────────┐
-│                                                                              │
-│   Feature              │ zai      │ minimax  │ openrouter │ mirror          │
-│   ─────────────────────┼──────────┼──────────┼────────────┼─────────────────│
-│   Model                │ GLM-4.7  │ M2.1     │ You choose │ Claude (native) │
-│   Auth Mode            │ API Key  │ API Key  │ Auth Token │ OAuth or Key    │
-│   ANTHROPIC_BASE_URL   │ ✓ Set    │ ✓ Set    │ ✓ Set      │ ✗ Not set       │
-│   ANTHROPIC_API_KEY    │ ✓ Set    │ ✓ Set    │ ✗          │ ✗ Not set       │
-│   Model Mappings       │ ✓ Auto   │ ✓ Auto   │ ✓ Required │ ✗ Not set       │
-│   Prompt Pack          │ ✓ Full   │ ✓ Full   │ ✗          │ ✗ Pure          │
-│   Team Mode            │ Optional │ Optional │ Optional   │ ✓ Default       │
-│   Config Isolation     │ ✓        │ ✓        │ ✓          │ ✓               │
-│                                                                              │
-└──────────────────────────────────────────────────────────────────────────────┘
+┌─────────────────────────────────────────────────────────────────────────────────────────────┐
+│                                                                                             │
+│   Feature              │ zai      │ minimax  │ openrouter │ vercel-ai-gw │ mirror          │
+│   ─────────────────────┼──────────┼──────────┼────────────┼──────────────┼─────────────────│
+│   Model                │ GLM-4.7  │ M2.1     │ You choose │ You choose   │ Claude (native) │
+│   Auth Mode            │ API Key  │ API Key  │ Auth Token │ Auth Token   │ OAuth or Key    │
+│   ANTHROPIC_BASE_URL   │ ✓ Set    │ ✓ Set    │ ✓ Set      │ ✓ Set        │ ✗ Not set       │
+│   ANTHROPIC_API_KEY    │ ✓ Set    │ ✓ Set    │ ✗          │ ✗            │ ✗ Not set       │
+│   Model Mappings       │ ✓ Auto   │ ✓ Auto   │ ✓ Required │ ✓ Required   │ ✗ Not set       │
+│   Prompt Pack          │ ✓ Full   │ ✓ Full   │ ✗          │ ✗            │ ✗ Pure          │
+│   Team Mode            │ Optional │ Optional │ Optional   │ Optional     │ ✓ Default       │
+│   Config Isolation     │ ✓        │ ✓        │ ✓          │ ✓            │ ✓               │
+│                                                                                             │
+└─────────────────────────────────────────────────────────────────────────────────────────────┘
 ```
 
 ---
@@ -99,7 +99,7 @@ No API key required at setup. When you run `mclaude`, authenticate via:
 
 ### Not For
 
-- **Different models** - use OpenRouter or CCRouter for alternative LLMs
+- **Different models** - use OpenRouter, Vercel AI Gateway, or CCRouter for alternative LLMs
 - **Cost savings** - Z.ai and MiniMax offer Coding Plan subscriptions
 - **Offline use** - Mirror requires Anthropic API access
 

src/brands/index.ts

@@ -4,6 +4,7 @@ import { buildMinimaxTweakccConfig } from './minimax.js';
 import { buildOpenRouterTweakccConfig } from './openrouter.js';
 import { buildCCRouterTweakccConfig } from './ccrouter.js';
 import { buildMirrorTweakccConfig } from './mirror.js';
+import { buildVercelTweakccConfig } from './vercel.js';
 
 export interface BrandPreset {
   key: string;
@@ -43,6 +44,12 @@ const BRAND_PRESETS: Record<string, BrandPreset> = {
     description: 'Reflective silver/chrome theme for pure Claude Code experience.',
     buildTweakccConfig: buildMirrorTweakccConfig,
   },
+  'vercel-ai-gateway': {
+    key: 'vercel-ai-gateway',
+    label: 'Vercel AI Gateway',
+    description: 'Minimal dark theme with Vercel AI Gateway brand colors (black, white, cyan).',
+    buildTweakccConfig: buildVercelTweakccConfig,
+  },
 };
 
 export const listBrandPresets = (): BrandPreset[] => Object.values(BRAND_PRESETS);