Merge branch 'router-for-me:main' into master

.github/workflows/pr-test-build.yml

@@ -0,0 +1,23 @@
+name: pr-test-build
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+      - name: Build
+        run: |
+          go build -o test-output ./cmd/server
+          rm -f test-output

internal/registry/model_definitions.go

@@ -832,6 +832,17 @@ func GetGitHubCopilotModels() []*ModelInfo {
 			ContextLength:       128000,
 			MaxCompletionTokens: 16384,
 		},
+		{
+			ID:                  "gpt-5.2",
+			Object:              "model",
+			Created:             now,
+			OwnedBy:             "github-copilot",
+			Type:                "github-copilot",
+			DisplayName:         "GPT-5.2",
+			Description:         "OpenAI GPT-5.2 via GitHub Copilot",
+			ContextLength:       200000,
+			MaxCompletionTokens: 32768,
+		},
 		{
 			ID:                  "claude-haiku-4.5",
 			Object:              "model",

internal/runtime/executor/antigravity_executor.go

@@ -33,15 +33,16 @@ import (
 const (
 	antigravityBaseURLDaily = "https://daily-cloudcode-pa.sandbox.googleapis.com"
 	// antigravityBaseURLAutopush     = "https://autopush-cloudcode-pa.sandbox.googleapis.com"
-	antigravityBaseURLProd  = "https://cloudcode-pa.googleapis.com"
+	antigravityBaseURLProd     = "https://cloudcode-pa.googleapis.com"
-	antigravityStreamPath   = "/v1internal:streamGenerateContent"
+	antigravityCountTokensPath = "/v1internal:countTokens"
-	antigravityGeneratePath = "/v1internal:generateContent"
+	antigravityStreamPath      = "/v1internal:streamGenerateContent"
-	antigravityModelsPath   = "/v1internal:fetchAvailableModels"
+	antigravityGeneratePath    = "/v1internal:generateContent"
-	antigravityClientID     = "1071006060591-tmhssin2h21lcre235vtolojh4g403ep.apps.googleusercontent.com"
+	antigravityModelsPath      = "/v1internal:fetchAvailableModels"
-	antigravityClientSecret = "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"
+	antigravityClientID        = "1071006060591-tmhssin2h21lcre235vtolojh4g403ep.apps.googleusercontent.com"
-	defaultAntigravityAgent = "antigravity/1.11.5 windows/amd64"
+	antigravityClientSecret    = "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"
-	antigravityAuthType     = "antigravity"
+	defaultAntigravityAgent    = "antigravity/1.11.5 windows/amd64"
-	refreshSkew             = 3000 * time.Second
+	antigravityAuthType        = "antigravity"
+	refreshSkew                = 3000 * time.Second
 )
 
 var (
@@ -650,9 +651,131 @@ func (e *AntigravityExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Au
 	return updated, nil
 }
 
-// CountTokens counts tokens for the given request (not supported for Antigravity).
+// CountTokens counts tokens for the given request using the Antigravity API.
-func (e *AntigravityExecutor) CountTokens(context.Context, *cliproxyauth.Auth, cliproxyexecutor.Request, cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {
+func (e *AntigravityExecutor) CountTokens(ctx context.Context, auth *cliproxyauth.Auth, req cliproxyexecutor.Request, opts cliproxyexecutor.Options) (cliproxyexecutor.Response, error) {
-	return cliproxyexecutor.Response{}, statusErr{code: http.StatusNotImplemented, msg: "count tokens not supported"}
+	token, updatedAuth, errToken := e.ensureAccessToken(ctx, auth)
+	if errToken != nil {
+		return cliproxyexecutor.Response{}, errToken
+	}
+	if updatedAuth != nil {
+		auth = updatedAuth
+	}
+	if strings.TrimSpace(token) == "" {
+		return cliproxyexecutor.Response{}, statusErr{code: http.StatusUnauthorized, msg: "missing access token"}
+	}
+
+	from := opts.SourceFormat
+	to := sdktranslator.FromString("antigravity")
+	respCtx := context.WithValue(ctx, "alt", opts.Alt)
+
+	baseURLs := antigravityBaseURLFallbackOrder(auth)
+	httpClient := newProxyAwareHTTPClient(ctx, e.cfg, auth, 0)
+
+	var authID, authLabel, authType, authValue string
+	if auth != nil {
+		authID = auth.ID
+		authLabel = auth.Label
+		authType, authValue = auth.AccountInfo()
+	}
+
+	var lastStatus int
+	var lastBody []byte
+	var lastErr error
+
+	for idx, baseURL := range baseURLs {
+		payload := sdktranslator.TranslateRequest(from, to, req.Model, bytes.Clone(req.Payload), false)
+		payload = applyThinkingMetadataCLI(payload, req.Metadata, req.Model)
+		payload = util.ApplyDefaultThinkingIfNeededCLI(req.Model, payload)
+		payload = normalizeAntigravityThinking(req.Model, payload)
+		payload = deleteJSONField(payload, "project")
+		payload = deleteJSONField(payload, "model")
+		payload = deleteJSONField(payload, "request.safetySettings")
+
+		base := strings.TrimSuffix(baseURL, "/")
+		if base == "" {
+			base = buildBaseURL(auth)
+		}
+
+		var requestURL strings.Builder
+		requestURL.WriteString(base)
+		requestURL.WriteString(antigravityCountTokensPath)
+		if opts.Alt != "" {
+			requestURL.WriteString("?$alt=")
+			requestURL.WriteString(url.QueryEscape(opts.Alt))
+		}
+
+		httpReq, errReq := http.NewRequestWithContext(ctx, http.MethodPost, requestURL.String(), bytes.NewReader(payload))
+		if errReq != nil {
+			return cliproxyexecutor.Response{}, errReq
+		}
+		httpReq.Header.Set("Content-Type", "application/json")
+		httpReq.Header.Set("Authorization", "Bearer "+token)
+		httpReq.Header.Set("User-Agent", resolveUserAgent(auth))
+		httpReq.Header.Set("Accept", "application/json")
+		if host := resolveHost(base); host != "" {
+			httpReq.Host = host
+		}
+
+		recordAPIRequest(ctx, e.cfg, upstreamRequestLog{
+			URL:       requestURL.String(),
+			Method:    http.MethodPost,
+			Headers:   httpReq.Header.Clone(),
+			Body:      payload,
+			Provider:  e.Identifier(),
+			AuthID:    authID,
+			AuthLabel: authLabel,
+			AuthType:  authType,
+			AuthValue: authValue,
+		})
+
+		httpResp, errDo := httpClient.Do(httpReq)
+		if errDo != nil {
+			recordAPIResponseError(ctx, e.cfg, errDo)
+			lastStatus = 0
+			lastBody = nil
+			lastErr = errDo
+			if idx+1 < len(baseURLs) {
+				log.Debugf("antigravity executor: request error on base url %s, retrying with fallback base url: %s", baseURL, baseURLs[idx+1])
+				continue
+			}
+			return cliproxyexecutor.Response{}, errDo
+		}
+
+		recordAPIResponseMetadata(ctx, e.cfg, httpResp.StatusCode, httpResp.Header.Clone())
+		bodyBytes, errRead := io.ReadAll(httpResp.Body)
+		if errClose := httpResp.Body.Close(); errClose != nil {
+			log.Errorf("antigravity executor: close response body error: %v", errClose)
+		}
+		if errRead != nil {
+			recordAPIResponseError(ctx, e.cfg, errRead)
+			return cliproxyexecutor.Response{}, errRead
+		}
+		appendAPIResponseChunk(ctx, e.cfg, bodyBytes)
+
+		if httpResp.StatusCode >= http.StatusOK && httpResp.StatusCode < http.StatusMultipleChoices {
+			count := gjson.GetBytes(bodyBytes, "totalTokens").Int()
+			translated := sdktranslator.TranslateTokenCount(respCtx, to, from, count, bodyBytes)
+			return cliproxyexecutor.Response{Payload: []byte(translated)}, nil
+		}
+
+		lastStatus = httpResp.StatusCode
+		lastBody = append([]byte(nil), bodyBytes...)
+		lastErr = nil
+		if httpResp.StatusCode == http.StatusTooManyRequests && idx+1 < len(baseURLs) {
+			log.Debugf("antigravity executor: rate limited on base url %s, retrying with fallback base url: %s", baseURL, baseURLs[idx+1])
+			continue
+		}
+		return cliproxyexecutor.Response{}, statusErr{code: httpResp.StatusCode, msg: string(bodyBytes)}
+	}
+
+	switch {
+	case lastStatus != 0:
+		return cliproxyexecutor.Response{}, statusErr{code: lastStatus, msg: string(lastBody)}
+	case lastErr != nil:
+		return cliproxyexecutor.Response{}, lastErr
+	default:
+		return cliproxyexecutor.Response{}, statusErr{code: http.StatusServiceUnavailable, msg: "antigravity executor: no base url available"}
+	}
 }
 
 // FetchAntigravityModels retrieves available models using the supplied auth.
@@ -1122,6 +1245,8 @@ func modelName2Alias(modelName string) string {
 		return "gemini-3-pro-image-preview"
 	case "gemini-3-pro-high":
 		return "gemini-3-pro-preview"
+	case "gemini-3-flash":
+		return "gemini-3-flash-preview"
 	case "claude-sonnet-4-5":
 		return "gemini-claude-sonnet-4-5"
 	case "claude-sonnet-4-5-thinking":
@@ -1143,6 +1268,8 @@ func alias2ModelName(modelName string) string {
 		return "gemini-3-pro-image"
 	case "gemini-3-pro-preview":
 		return "gemini-3-pro-high"
+	case "gemini-3-flash-preview":
+		return "gemini-3-flash"
 	case "gemini-claude-sonnet-4-5":
 		return "claude-sonnet-4-5"
 	case "gemini-claude-sonnet-4-5-thinking":

internal/runtime/executor/token_helpers.go

@@ -73,10 +73,12 @@ func tokenizerForModel(model string) (*TokenizerWrapper, error) {
 	switch {
 	case sanitized == "":
 		enc, err = tokenizer.Get(tokenizer.Cl100kBase)
-	case strings.HasPrefix(sanitized, "gpt-5"):
+	case strings.HasPrefix(sanitized, "gpt-5.2"):
 		enc, err = tokenizer.ForModel(tokenizer.GPT5)
 	case strings.HasPrefix(sanitized, "gpt-5.1"):
 		enc, err = tokenizer.ForModel(tokenizer.GPT5)
+	case strings.HasPrefix(sanitized, "gpt-5"):
+		enc, err = tokenizer.ForModel(tokenizer.GPT5)
 	case strings.HasPrefix(sanitized, "gpt-4.1"):
 		enc, err = tokenizer.ForModel(tokenizer.GPT41)
 	case strings.HasPrefix(sanitized, "gpt-4o"):
@@ -154,10 +156,10 @@ func countClaudeChatTokens(enc *TokenizerWrapper, payload []byte) (int64, error)
 
 	// Collect system prompt (can be string or array of content blocks)
 	collectClaudeSystem(root.Get("system"), &segments)
-	
+
 	// Collect messages
 	collectClaudeMessages(root.Get("messages"), &segments)
-	
+
 	// Collect tools
 	collectClaudeTools(root.Get("tools"), &segments)