Group r2 and json command modifiers in the help message

src/agent/index.ts

@@ -306,13 +306,24 @@ function getHelpMessage(prefix: string): string {
             // TODO: only filter those for top level commands, maybe handy to show them too
             return !(k.endsWith('?') || k.endsWith('j') || k.endsWith('q')); //  || k.endsWith('.'));
         })
+        .filter((k) => {
+            const fcn = (commandHandlers as any)[k];
+	    return (typeof fcn === "object");
+        })
         .map((k) => {
             const fcn = (commandHandlers as any)[k];
 	    if (typeof fcn === "object") {
                 const desc = fcn[1];
                 const args = fcn[2] || "";
-                const cmd = k + ' ' + args;
-                return ':' + utils.padString(cmd, 25) + desc;
+                const haveJson = (commandHandlers as any)[k + 'j'];
+                const haveR2 = (commandHandlers as any)[k + '*'];
+		let mods = "";
+		if (haveJson || haveR2) {
+                    mods = "[" + (haveJson?"j":"") + (haveR2?"*":"") + "]";
+		}
+                const cmd = k + mods + ' ' + args;
+		// show subcommands if any (check for 'j' and '*')
+                return ':' + utils.padString(cmd, 20) + desc;
 	    }
             return ":" + k;
         }).join('\n');