feat(cli): support space-separated multi-word verbs

`ncl groups config get` now works alongside `ncl groups config-get`.
Parser joins all positionals with dashes; dispatcher falls back by
trimming the last segment as a target ID (`ncl groups get abc123`).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

container/agent-runner/src/cli/ncl.ts

@@ -165,12 +165,9 @@ function parseArgv(argv: string[]): {
     process.exit(2);
   }
 
-  const command = positional.length >= 2 ? `${positional[0]}-${positional[1]}` : positional[0];
-
-  // Third positional is the target ID
-  if (positional.length >= 3) {
-    args.id = positional[2];
-  }
+  // Join all positionals with dashes. The dispatcher trims the last
+  // segment as a target ID if the full name isn't a registered command.
+  const command = positional.join('-');
 
   return { command, args, json };
 }

src/cli/client.ts

@@ -85,20 +85,11 @@ function parseArgv(argv: string[]): {
     process.exit(2);
   }
 
-  // Single word: `ncl help`
-  // Two words: `ncl groups list`, `ncl groups help`
-  // Three words: `ncl groups get abc123`
-  let command: string;
-  if (positional.length === 1) {
-    command = positional[0];
-  } else {
-    command = `${positional[0]}-${positional[1]}`;
-  }
-
-  // Third positional is the target ID
-  if (positional.length >= 3) {
-    args.id = positional[2];
-  }
+  // Join all positionals with dashes to form the command name.
+  // If the full name isn't a command, the dispatcher will try trimming
+  // the last segment and using it as the target ID (e.g. `groups get abc`
+  // → command "groups-get", id "abc").
+  const command = positional.join('-');
 
   return { command, args, json };
 }

src/cli/dispatch.ts

@@ -13,7 +13,25 @@ import type { CallerContext, ErrorCode, RequestFrame, ResponseFrame } from './fr
 import { lookup } from './registry.js';
 
 export async function dispatch(req: RequestFrame, ctx: CallerContext): Promise<ResponseFrame> {
-  const cmd = lookup(req.command);
+  let cmd = lookup(req.command);
+
+  // Fallback: if the full command isn't registered, trim the last
+  // dash-segment and treat it as the target ID. This lets clients join
+  // all positional args with dashes (e.g. `ncl groups get abc123`
+  // → command "groups-get-abc123" → trim → "groups-get" + id "abc123").
+  if (!cmd) {
+    const idx = req.command.lastIndexOf('-');
+    if (idx > 0) {
+      const shortened = req.command.slice(0, idx);
+      const tail = req.command.slice(idx + 1);
+      const fallback = lookup(shortened);
+      if (fallback) {
+        cmd = fallback;
+        req = { ...req, command: shortened, args: { ...req.args, id: req.args.id ?? tail } };
+      }
+    }
+  }
+
   if (!cmd) {
     return err(req.id, 'unknown-command', `no command "${req.command}"`);
   }