feat: Add user action prompt after issue discovery and enhance environment variable support for embedding and reranker configurations

.claude/commands/issue/discover.md

@@ -73,6 +73,9 @@ Phase 5: Issue Generation & Summary
    ├─ Write to discovery-issues.jsonl
    ├─ Generate single summary.md from agent returns
    └─ Update discovery-state.json to complete
+
+Phase 6: User Action Prompt
+   └─ AskUserQuestion for next step (export/dashboard/skip)
 ```
 
 ## Perspectives
@@ -238,6 +241,44 @@ await updateDiscoveryState(outputDir, {
 });
 ```
 
+**Phase 6: User Action Prompt**
+
+```javascript
+// Prompt user for next action based on discovery results
+const hasHighPriority = issues.some(i => i.priority === 'critical' || i.priority === 'high');
+const hasMediumFindings = prioritizedFindings.some(f => f.priority === 'medium');
+
+await AskUserQuestion({
+  questions: [{
+    question: `Discovery complete: ${issues.length} issues generated, ${prioritizedFindings.length} total findings. What would you like to do next?`,
+    header: "Next Step",
+    multiSelect: false,
+    options: hasHighPriority ? [
+      { label: "Export to Issues (Recommended)", description: `${issues.length} high-priority issues found - export to issue tracker for planning` },
+      { label: "Open Dashboard", description: "Review findings in ccw view before exporting" },
+      { label: "Skip", description: "Complete discovery without exporting" }
+    ] : hasMediumFindings ? [
+      { label: "Open Dashboard (Recommended)", description: "Review medium-priority findings in ccw view to decide which to export" },
+      { label: "Export to Issues", description: `Export ${issues.length} issues to tracker` },
+      { label: "Skip", description: "Complete discovery without exporting" }
+    ] : [
+      { label: "Skip (Recommended)", description: "No significant issues found - complete discovery" },
+      { label: "Open Dashboard", description: "Review all findings in ccw view" },
+      { label: "Export to Issues", description: `Export ${issues.length} issues anyway` }
+    ]
+  }]
+});
+
+// Handle response
+if (response === "Export to Issues") {
+  // Append to issues.jsonl
+  await appendJsonl('.workflow/issues/issues.jsonl', issues);
+  console.log(`Exported ${issues.length} issues. Run /issue:plan to continue.`);
+} else if (response === "Open Dashboard") {
+  console.log('Run `ccw view` and navigate to Issues > Discovery to manage findings.');
+}
+```
+
 ### Output File Structure
 
 ```

codex-lens/src/codexlens/cli/commands.py

@@ -1220,9 +1220,32 @@ def config(
                 except (json.JSONDecodeError, OSError):
                     pass  # Settings file not readable, continue with defaults
 
-            # Environment variables override settings file
+            # Load .env overrides from global ~/.codexlens/.env
-            if os.getenv("RERANKER_PROVIDER"):
+            env_overrides: Dict[str, str] = {}
-                result["reranker_api_provider"] = os.getenv("RERANKER_PROVIDER")
+            try:
+                from codexlens.env_config import load_global_env
+                env_overrides = load_global_env()
+            except ImportError:
+                pass
+
+            # Apply .env overrides (highest priority) and track them
+            if env_overrides.get("EMBEDDING_MODEL"):
+                result["embedding_model"] = env_overrides["EMBEDDING_MODEL"]
+                result["embedding_model_source"] = ".env"
+            if env_overrides.get("EMBEDDING_BACKEND"):
+                result["embedding_backend"] = env_overrides["EMBEDDING_BACKEND"]
+                result["embedding_backend_source"] = ".env"
+            if env_overrides.get("RERANKER_MODEL"):
+                result["reranker_model"] = env_overrides["RERANKER_MODEL"]
+                result["reranker_model_source"] = ".env"
+            if env_overrides.get("RERANKER_BACKEND"):
+                result["reranker_backend"] = env_overrides["RERANKER_BACKEND"]
+                result["reranker_backend_source"] = ".env"
+            if env_overrides.get("RERANKER_ENABLED"):
+                result["reranker_enabled"] = env_overrides["RERANKER_ENABLED"].lower() in ("true", "1", "yes", "on")
+                result["reranker_enabled_source"] = ".env"
+            if env_overrides.get("RERANKER_PROVIDER") or os.getenv("RERANKER_PROVIDER"):
+                result["reranker_api_provider"] = env_overrides.get("RERANKER_PROVIDER") or os.getenv("RERANKER_PROVIDER")
 
             if json_mode:
                 print_json(success=True, result=result)
@@ -1232,12 +1255,27 @@ def config(
                 console.print(f"  Index Directory: {result['index_dir']}")
                 if result['env_override']:
                     console.print(f"  [dim](Override via CODEXLENS_INDEX_DIR)[/dim]")
-                # Show reranker settings if present
+
-                if result.get("reranker_backend"):
+                # Show embedding settings
-                    console.print(f"\n[bold]Reranker[/bold]")
+                console.print(f"\n[bold]Embedding[/bold]")
-                    console.print(f"  Backend: {result.get('reranker_backend', 'N/A')}")
+                backend = result.get('embedding_backend', 'fastembed')
-                    console.print(f"  Model: {result.get('reranker_model', 'N/A')}")
+                backend_source = result.get('embedding_backend_source', 'settings.json')
-                    console.print(f"  Enabled: {result.get('reranker_enabled', False)}")
+                console.print(f"  Backend: {backend} [dim]({backend_source})[/dim]")
+                model = result.get('embedding_model', 'code')
+                model_source = result.get('embedding_model_source', 'settings.json')
+                console.print(f"  Model: {model} [dim]({model_source})[/dim]")
+
+                # Show reranker settings
+                console.print(f"\n[bold]Reranker[/bold]")
+                backend = result.get('reranker_backend', 'fastembed')
+                backend_source = result.get('reranker_backend_source', 'settings.json')
+                console.print(f"  Backend: {backend} [dim]({backend_source})[/dim]")
+                model = result.get('reranker_model', 'N/A')
+                model_source = result.get('reranker_model_source', 'settings.json')
+                console.print(f"  Model: {model} [dim]({model_source})[/dim]")
+                enabled = result.get('reranker_enabled', False)
+                enabled_source = result.get('reranker_enabled_source', 'settings.json')
+                console.print(f"  Enabled: {enabled} [dim]({enabled_source})[/dim]")
 
         elif action == "set":
             if not key:

codex-lens/src/codexlens/config.py

@@ -339,11 +339,11 @@ class Config:
                 self.enable_cross_encoder_rerank = reranker["enabled"]
             if "backend" in reranker:
                 backend = reranker["backend"]
-                if backend in {"onnx", "api", "litellm", "legacy"}:
+                if backend in {"fastembed", "onnx", "api", "litellm", "legacy"}:
                     self.reranker_backend = backend
                 else:
                     log.warning(
-                        "Invalid reranker backend in %s: %r (expected 'onnx', 'api', 'litellm', or 'legacy')",
+                        "Invalid reranker backend in %s: %r (expected 'fastembed', 'onnx', 'api', 'litellm', or 'legacy')",
                         self.settings_path,
                         backend,
                     )
@@ -383,6 +383,58 @@ class Config:
                 exc,
             )
 
+        # Apply .env overrides (highest priority)
+        self._apply_env_overrides()
+
+    def _apply_env_overrides(self) -> None:
+        """Apply environment variable overrides from .env file.
+
+        Priority: default → settings.json → .env (highest)
+
+        Supported variables:
+            EMBEDDING_MODEL: Override embedding model/profile
+            EMBEDDING_BACKEND: Override embedding backend (fastembed/litellm)
+            RERANKER_MODEL: Override reranker model
+            RERANKER_BACKEND: Override reranker backend
+            RERANKER_ENABLED: Override reranker enabled state (true/false)
+        """
+        from .env_config import load_global_env
+
+        env_vars = load_global_env()
+        if not env_vars:
+            return
+
+        # Embedding overrides
+        if "EMBEDDING_MODEL" in env_vars:
+            self.embedding_model = env_vars["EMBEDDING_MODEL"]
+            log.debug("Overriding embedding_model from .env: %s", self.embedding_model)
+
+        if "EMBEDDING_BACKEND" in env_vars:
+            backend = env_vars["EMBEDDING_BACKEND"].lower()
+            if backend in {"fastembed", "litellm"}:
+                self.embedding_backend = backend
+                log.debug("Overriding embedding_backend from .env: %s", backend)
+            else:
+                log.warning("Invalid EMBEDDING_BACKEND in .env: %r", backend)
+
+        # Reranker overrides
+        if "RERANKER_MODEL" in env_vars:
+            self.reranker_model = env_vars["RERANKER_MODEL"]
+            log.debug("Overriding reranker_model from .env: %s", self.reranker_model)
+
+        if "RERANKER_BACKEND" in env_vars:
+            backend = env_vars["RERANKER_BACKEND"].lower()
+            if backend in {"fastembed", "onnx", "api", "litellm", "legacy"}:
+                self.reranker_backend = backend
+                log.debug("Overriding reranker_backend from .env: %s", backend)
+            else:
+                log.warning("Invalid RERANKER_BACKEND in .env: %r", backend)
+
+        if "RERANKER_ENABLED" in env_vars:
+            value = env_vars["RERANKER_ENABLED"].lower()
+            self.enable_cross_encoder_rerank = value in {"true", "1", "yes", "on"}
+            log.debug("Overriding reranker_enabled from .env: %s", self.enable_cross_encoder_rerank)
+
     @classmethod
     def load(cls) -> "Config":
         """Load config with settings from file."""

codex-lens/src/codexlens/env_config.py

@@ -20,15 +20,18 @@ log = logging.getLogger(__name__)
 
 # Supported environment variables with descriptions
 ENV_VARS = {
-    # Reranker API configuration
+    # Reranker configuration (overrides settings.json)
+    "RERANKER_MODEL": "Reranker model name (overrides settings.json)",
+    "RERANKER_BACKEND": "Reranker backend: fastembed, onnx, api, litellm, legacy",
+    "RERANKER_ENABLED": "Enable reranker: true/false",
     "RERANKER_API_KEY": "API key for reranker service (SiliconFlow/Cohere/Jina)",
     "RERANKER_API_BASE": "Base URL for reranker API (overrides provider default)",
     "RERANKER_PROVIDER": "Reranker provider: siliconflow, cohere, jina",
-    "RERANKER_MODEL": "Reranker model name",
+    # Embedding configuration (overrides settings.json)
-    # Embedding API configuration
+    "EMBEDDING_MODEL": "Embedding model/profile name (overrides settings.json)",
+    "EMBEDDING_BACKEND": "Embedding backend: fastembed, litellm",
     "EMBEDDING_API_KEY": "API key for embedding service",
     "EMBEDDING_API_BASE": "Base URL for embedding API",
-    "EMBEDDING_MODEL": "Embedding model name",
     # LiteLLM configuration
     "LITELLM_API_KEY": "API key for LiteLLM",
     "LITELLM_API_BASE": "Base URL for LiteLLM",