feat: add config-backed ask keymaps

src/index.ts

@@ -1,8 +1,21 @@
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
 import type { ExtensionAPI } from "@mariozechner/pi-coding-agent";
 import { registerAskSettingsCommand } from "./ask-settings-command.ts";
 import { registerAskTool } from "./ask-tool.ts";
 
+const PACKAGE_ROOT = resolve(dirname(fileURLToPath(import.meta.url)), "..");
+const CONFIGURATION_DOC_PATH = resolve(
+	PACKAGE_ROOT,
+	"docs",
+	"configuration.md"
+);
+const PI_ASK_CONFIG_PROMPT = `When the user asks to configure, customize, debug, or explain @eko24ive/pi-ask settings or keymaps, first read ${CONFIGURATION_DOC_PATH} and follow it as the source of truth before editing config files.`;
+
 export default function askExtension(pi: ExtensionAPI) {
+	pi.on("before_agent_start", async (event) => ({
+		systemPrompt: `${event.systemPrompt}\n\n${PI_ASK_CONFIG_PROMPT}`,
+	}));
 	registerAskTool(pi);
 	registerAskSettingsCommand(pi);
 }