tool call logging, centralized temp dir

mcp/selectMode.ts

@@ -0,0 +1,55 @@
+import { type } from "arktype";
+import type { Mode } from "../modes.ts";
+import { contextualize, tool } from "./shared.ts";
+
+// Get modes from environment variable (set by createMcpConfigs)
+function getModes(): Mode[] {
+  const modesJson = process.env.PULLFROG_MODES;
+  if (modesJson) {
+    try {
+      return JSON.parse(modesJson);
+    } catch {
+      return [];
+    }
+  }
+  return [];
+}
+
+export const SelectMode = type({
+  modeName: type.string.describe(
+    "the name of the mode to select (e.g., 'Plan', 'Build', 'Review', 'Prompt')"
+  ),
+});
+
+export const SelectModeTool = tool({
+  name: "select_mode",
+  description:
+    "Select a mode and get its detailed prompt instructions. Call this first to determine which mode to use based on the request.",
+  parameters: SelectMode,
+  execute: contextualize(async ({ modeName }) => {
+    const allModes = getModes();
+
+    if (allModes.length === 0) {
+      return {
+        error:
+          "No modes available. Modes must be provided via PULLFROG_MODES environment variable.",
+      };
+    }
+
+    const selectedMode = allModes.find((m) => m.name.toLowerCase() === modeName.toLowerCase());
+
+    if (!selectedMode) {
+      const availableModes = allModes.map((m) => m.name).join(", ");
+      return {
+        error: `Mode "${modeName}" not found. Available modes: ${availableModes}`,
+        availableModes: allModes.map((m) => ({ name: m.name, description: m.description })),
+      };
+    }
+
+    return {
+      modeName: selectedMode.name,
+      description: selectedMode.description,
+      prompt: selectedMode.prompt,
+    };
+  }),
+});