support model vendor

Author: kinseydurhamgrace

cli/cmd/engine-cli/main.go

@@ -38,6 +38,7 @@ var (
 	selectedModel            string
 	defaultModel             string
 	availableModels          []string
+	modelVendor              string
 )
 
 func main() {
@@ -98,6 +99,7 @@ func init() {
 	runCmd.Flags().StringVar(&selectedModel, "selected-model", "", "Selected model for this job")
 	runCmd.Flags().StringVar(&defaultModel, "default-model", "", "Default model for this engine")
 	runCmd.Flags().StringSliceVar(&availableModels, "available-model", nil, "Available model for this engine (repeatable)")
+	runCmd.Flags().StringVar(&modelVendor, "model-vendor", "", "Model vendor for filtering (e.g. Anthropic, OpenAI)")
 
 	_ = runCmd.MarkFlagRequired("repo")
 }
@@ -164,6 +166,7 @@ func runEngine(cmd *cobra.Command, args []string) error {
 		SelectedModel:            selectedModel,
 		DefaultModel:             defaultModel,
 		AvailableModels:          availableModels,
+		ModelVendor:              modelVendor,
 	}
 
 	prNumber := setup.PRNumber
@@ -287,6 +290,7 @@ func runEngine(cmd *cobra.Command, args []string) error {
 		env.SelectedModel = selectedModel
 		env.DefaultModel = defaultModel
 		env.AvailableModels = availableModels
+		env.ModelVendor = modelVendor
 	}
 
 	result := runner.Run(ctx, command, env, runner.Options{WorkingDir: workingDir}, runnerCallbacks)

cli/internal/runner/runner.go

@@ -27,6 +27,7 @@ type Environment struct {
 	SelectedModel   string
 	DefaultModel    string
 	AvailableModels []string
+	ModelVendor     string
 }
 
 // Callbacks contains optional callbacks for runner events.
@@ -160,6 +161,10 @@ func buildEnv(env Environment, extra map[string]string) []string {
 		}
 	}
 
+	if env.ModelVendor != "" {
+		platformVars["GITHUB_MODEL_VENDOR"] = env.ModelVendor
+	}
+
 	for k, v := range platformVars {
 		result = append(result, fmt.Sprintf("%s=%s", k, v))
 	}

cli/internal/server/server.go

@@ -36,6 +36,7 @@ type JobConfig struct {
 	SelectedModel            string
 	DefaultModel             string
 	AvailableModels          []string
+	ModelVendor              string
 }
 
 // ProgressEvent represents a progress event received from an engine.
@@ -231,6 +232,10 @@ func (s *MockPlatformServer) handleGetJob(w http.ResponseWriter, r *http.Request
 		if len(s.jobConfig.AvailableModels) > 0 {
 			response["available_models"] = s.jobConfig.AvailableModels
 		}
+
+		if s.jobConfig.ModelVendor != "" {
+			response["model_vendor"] = s.jobConfig.ModelVendor
+		}
 	}
 
 	if s.callbacks.OnJobFetched != nil {

docs/integration-guide.md

@@ -98,6 +98,7 @@ The platform injects these environment variables into the engine process at runt
 | `GITHUB_SELECTED_MODEL` | No | Model selected by the platform for this run. Only set when model selection is enabled. |
 | `GITHUB_DEFAULT_MODEL` | No | Default model for the selected engine. Only set when model selection is enabled. |
 | `GITHUB_AVAILABLE_MODELS` | No | JSON array of models the engine can choose from (e.g. `["claude-sonnet-4.5","claude-opus-4.1"]`). Only set when model selection is enabled. |
+| `GITHUB_MODEL_VENDOR` | No | Model vendor for filtering (e.g. `Anthropic`, `OpenAI`). Only set when model selection is enabled. |
 
 ## Step 2: Fetch Job Details
 
@@ -154,6 +155,7 @@ Headers:
   "selected_model": "claude-sonnet-4.5",
   "default_model": "claude-sonnet-4.5",
   "available_models": ["claude-sonnet-4.5", "claude-opus-4.1"],
+  "model_vendor": "Anthropic",
   "mcp_proxy_url": "http://127.0.0.1:2301"
 }
 ```
@@ -173,6 +175,7 @@ Headers:
 | `selected_model` | Model selected by the platform for this run. Present when `features.model_selection` is `true`. |
 | `default_model` | Default model for the selected engine. Present when `features.model_selection` is `true`. |
 | `available_models` | List of models the engine can choose from. Present when `features.model_selection` is `true`. |
+| `model_vendor` | Model vendor for filtering (e.g. `Anthropic`, `OpenAI`). Present when `features.model_selection` is `true`. |
 | `mcp_proxy_url` | Optional URL of the MCP proxy server. When present, use it to discover user-provided MCP servers. See [User-Provided MCP Servers](#user-provided-mcp-servers). |
 
 Use `GITHUB_INFERENCE_TOKEN` for model calls and `GITHUB_GIT_TOKEN` for git operations; those are bootstrap action inputs, not job response fields.

src/client.ts

@@ -493,6 +493,8 @@ export interface JobDetails {
     default_model?: string;
     /** Models the engine can choose from. Present when model selection is enabled. */
     available_models?: string[];
+    /** Model vendor for filtering (e.g. "Anthropic", "OpenAI"). Present when model selection is enabled. */
+    model_vendor?: string;
     /** Feature flags enabled for this job. */
     features?: {
         /** Whether the platform has enabled model selection for this job. */