feat: LLM-powered model auto-configuration and improved onboarding

Major changes:
- Add autoconfigure_models tool for intelligent model assignment
- Implement LLM-based model selection using openclaw agent
- Improve onboarding flow with better model access checks
- Update README with clearer installation and onboarding instructions

Technical improvements:
- Add model-fetcher utility to query authenticated models
- Add smart-model-selector for LLM-driven model assignment
- Use session context for LLM calls during onboarding
- Suppress logging from openclaw models list calls

Documentation:
- Add prerequisites section to README
- Add conversational onboarding example
- Improve quick start flow

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

lib/tools/autoconfigure-models.ts

@@ -0,0 +1,136 @@
+/**
+ * autoconfigure-models.ts — Tool for automatically configuring model assignments.
+ *
+ * Queries available authenticated models and intelligently assigns them to DevClaw roles.
+ */
+import type { OpenClawPluginApi } from "openclaw/plugin-sdk";
+import { jsonResult } from "openclaw/plugin-sdk";
+import type { ToolContext } from "../types.js";
+import {
+  assignModels,
+  formatAssignment,
+  generateSetupInstructions,
+  type ModelAssignment,
+} from "../setup/smart-model-selector.js";
+import { fetchAuthenticatedModels } from "../setup/model-fetcher.js";
+
+/**
+ * Get available authenticated models from OpenClaw.
+ */
+async function getAuthenticatedModels(
+  api: OpenClawPluginApi,
+): Promise<Array<{ model: string; provider: string; authenticated: boolean }>> {
+  try {
+    const models = fetchAuthenticatedModels();
+
+    // Map to the format expected by assignModels()
+    return models.map((m) => {
+      // Extract provider from key (format: provider/model-name)
+      const provider = m.key.split("/")[0] || "unknown";
+      return {
+        model: m.key,
+        provider,
+        authenticated: true,
+      };
+    });
+  } catch (err) {
+    throw new Error(`Failed to get authenticated models: ${(err as Error).message}`);
+  }
+}
+
+/**
+ * Create the autoconfigure_models tool.
+ */
+export function createAutoConfigureModelsTool(api: OpenClawPluginApi) {
+  return (ctx: ToolContext) => ({
+    name: "autoconfigure_models",
+    label: "Auto-Configure Models",
+    description:
+      "Automatically discover authenticated models and intelligently assign them to DevClaw roles based on capability tiers",
+    parameters: {
+      type: "object",
+      properties: {
+        preferProvider: {
+          type: "string",
+          description:
+            "Optional: Prefer models from this provider (e.g., 'anthropic', 'openai')",
+        },
+      },
+    },
+    async execute(_id: string, params: Record<string, unknown>) {
+      try {
+        // Get all authenticated models
+        let authenticatedModels = await getAuthenticatedModels(api);
+
+        // Filter by preferred provider if specified
+        const preferProvider = params?.preferProvider as string | undefined;
+        if (preferProvider) {
+          const filtered = authenticatedModels.filter(
+            (m) => m.provider.toLowerCase() === preferProvider.toLowerCase(),
+          );
+          if (filtered.length === 0) {
+            return jsonResult({
+              success: false,
+              error: `No authenticated models found for provider: ${preferProvider}`,
+              message: `❌ No authenticated models found for provider "${preferProvider}".\n\nAvailable providers: ${[...new Set(authenticatedModels.map((m) => m.provider))].join(", ")}`,
+            });
+          }
+          authenticatedModels = filtered;
+        }
+
+        // Intelligently assign models using current session context
+        const assignment = await assignModels(authenticatedModels, ctx.sessionKey);
+
+        if (!assignment) {
+          // No models available
+          const instructions = generateSetupInstructions();
+          return jsonResult({
+            success: false,
+            modelCount: 0,
+            message: instructions,
+          });
+        }
+
+        // Format the assignment
+        const table = formatAssignment(assignment);
+        const modelCount = authenticatedModels.length;
+
+        let message = `✅ Auto-configured models based on ${modelCount} authenticated model${modelCount === 1 ? "" : "s"}:\n\n`;
+        message += table;
+        message += "\n\n";
+
+        if (modelCount === 1) {
+          message += "ℹ️  Only one authenticated model found — assigned to all roles.";
+        } else {
+          message += "ℹ️  Models assigned by capability tier (Tier 1 → senior, Tier 2 → medior/reviewer, Tier 3 → junior/tester).";
+        }
+
+        if (preferProvider) {
+          message += `\n📌 Filtered to provider: ${preferProvider}`;
+        }
+
+        message += "\n\n**Next step:** Pass this configuration to `setup` tool:\n";
+        message += "```javascript\n";
+        message += "setup({ models: <this-configuration> })\n";
+        message += "```";
+
+        return jsonResult({
+          success: true,
+          modelCount,
+          assignment,
+          models: assignment,
+          provider: preferProvider || "auto",
+          message,
+        });
+      } catch (err) {
+        const errorMsg = (err as Error).message;
+        api.logger.error(`Auto-configure models error: ${errorMsg}`);
+        return jsonResult({
+          success: false,
+          error: errorMsg,
+          message: `❌ Failed to auto-configure models: ${errorMsg}`,
+        });
+      }
+    },
+  });
+}