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feat(ai): add Google Cloud Code Assist provider

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- Add new API type 'google-cloud-code-assist' for Gemini CLI / Antigravity auth
- Extract shared Google utilities to google-shared.ts
- Implement streaming provider for Cloud Code Assist endpoint
- Add 7 models: gemini-3-pro-high/low, gemini-3-flash, claude-sonnet/opus, gpt-oss

Models use OAuth authentication and have sh cost (uses Google account quota).
OAuth flow will be implemented in coding-agent in a follow-up.
This commit is contained in:
Mario Zechner 2025-12-20 10:20:30 +01:00
parent 04dcdebbc6
commit 36e17933d5
10 changed files with 1208 additions and 178 deletions
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91
packages/ai/scripts/generate-models.ts
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@ -482,6 +482,97 @@ async function generateModels() {
});
}
// Add Google Cloud Code Assist models (Gemini CLI / Antigravity)
// These use OAuth authentication via Google account, cost is $0 (uses account quota)
const CLOUD_CODE_ASSIST_ENDPOINT = "https://cloudcode-pa.googleapis.com";
const cloudCodeAssistModels: Model<"google-cloud-code-assist">[] = [
{
id: "gemini-3-pro-high",
name: "Gemini 3 Pro High (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: true,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 1048576,
maxTokens: 65535,
},
{
id: "gemini-3-pro-low",
name: "Gemini 3 Pro Low (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: true,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 1048576,
maxTokens: 65535,
},
{
id: "gemini-3-flash",
name: "Gemini 3 Flash (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: false,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 1048576,
maxTokens: 65536,
},
{
id: "claude-sonnet-4-5",
name: "Claude Sonnet 4.5 (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: false,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 200000,
maxTokens: 64000,
},
{
id: "claude-sonnet-4-5-thinking",
name: "Claude Sonnet 4.5 Thinking (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: true,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 200000,
maxTokens: 64000,
},
{
id: "claude-opus-4-5-thinking",
name: "Claude Opus 4.5 Thinking (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: true,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 200000,
maxTokens: 64000,
},
{
id: "gpt-oss-120b-medium",
name: "GPT-OSS 120B Medium (Cloud Code Assist)",
api: "google-cloud-code-assist",
provider: "google-cloud-code-assist",
baseUrl: CLOUD_CODE_ASSIST_ENDPOINT,
reasoning: false,
input: ["text", "image"],
cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
contextWindow: 131072,
maxTokens: 32768,
},
];
allModels.push(...cloudCodeAssistModels);
// Group by provider and deduplicate by model ID
const providers: Record<string, Record<string, Model<any>>> = {};
for (const model of allModels) {