sync-to-codex-plugin: seed interface.defaultPrompt

Codex plugin pages use interface.defaultPrompt to show suggested
prompts on the plugin's app card; the generator now emits two
domain-neutral seed prompts so the superpowers listing isn't empty.

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

CHANGELOG.md

@@ -1,13 +0,0 @@
-# Changelog
-
-## [5.0.5] - 2026-03-17
-
-### Fixed
-
-- **Brainstorm server ESM fix**: Renamed `server.js` → `server.cjs` so the brainstorming server starts correctly on Node.js 22+ where the root `package.json` `"type": "module"` caused `require()` to fail. ([PR #784](https://github.com/obra/superpowers/pull/784) by @sarbojitrana, fixes [#774](https://github.com/obra/superpowers/issues/774), [#780](https://github.com/obra/superpowers/issues/780), [#783](https://github.com/obra/superpowers/issues/783))
-- **Brainstorm owner-PID on Windows**: Skip `BRAINSTORM_OWNER_PID` lifecycle monitoring on Windows/MSYS2 where the PID namespace is invisible to Node.js. Prevents the server from self-terminating after 60 seconds. The 30-minute idle timeout remains as the safety net. ([#770](https://github.com/obra/superpowers/issues/770), docs from [PR #768](https://github.com/obra/superpowers/pull/768) by @lucasyhzhu-debug)
-- **stop-server.sh reliability**: Verify the server process actually died before reporting success. Waits up to 2 seconds for graceful shutdown, escalates to `SIGKILL`, and reports failure if the process survives. ([#723](https://github.com/obra/superpowers/issues/723))
-
-### Changed
-
-- **Execution handoff**: Restore user choice between subagent-driven-development and executing-plans after plan writing. Subagent-driven is recommended but no longer mandatory. (Reverts `5e51c3e`)

scripts/sync-to-codex-plugin.sh

@@ -127,6 +127,10 @@ generate_plugin_json() {
       "Read",
       "Write"
     ],
+    "defaultPrompt": [
+      "I've got an idea for something I'd like to build.",
+      "Let's add a feature to this project."
+    ],
     "brandColor": "#F59E0B",
     "composerIcon": "./assets/superpowers-small.svg",
     "logo": "./assets/app-icon.png",