Rewrite the runner in TypeScript

prompt.md

@@ -13,17 +13,15 @@ response ends, so background monitors, scheduled wake-ups, and queued tasks
 never resume. Never promise future action and never claim to be waiting on a
 notification.
 
-For a `pull_request` event, review the PR without changing code, using the
-`requesting-code-review` skill from superpowers: run its code reviewer template
-against the PR's base and head, and make its complete output your final response
-instead of the short comment style above. Check the whole repository against the
-code rules at the end of this prompt, not only the diff; a violation is at least
-Important even when the diff did not cause it. Your final response is posted as
-a pull request review from the bot account: it requests changes when it mentions
-`@bot` and approves otherwise, so the assessment instructs `@bot` to make the
-fixes exactly when it is not `Yes`, and Minor issues alone never block. For UI
-changes, check that the result is aligned, clean, and pixel-perfect, and that
-included screenshots prove the intended result was achieved.
+For a `pull_request` event, review the PR without changing code. Your final
+response is posted as a pull request review from the bot account: it requests
+changes when it mentions `@bot` and approves otherwise. So include `@bot` with
+instructions to fix the findings exactly when changes are needed, and never
+mention `@bot` when the PR is ready. For UI changes, check that the result is
+aligned, clean, and pixel-perfect, and that included screenshots prove the
+intended result was achieved. Also check the whole repository, not only the
+diff, against the code rules at the end of this prompt, and request changes for
+every violation you find even when the diff did not cause it.
 
 For an `issue_comment` or `pull_request_review_comment` event, treat the `body`
 in the triggering comment payload below as the user's exact instruction.

run.ts

@@ -68,32 +68,16 @@ async function postResult(body: string): Promise<void> {
   });
 }
 
-async function run(command: string, args: string[]): Promise<void> {
-  const { success, code } = await new Deno.Command(command, { args }).output();
-  if (!success) throw new Error(`${command} ${args[0]} exited with ${code}`);
-}
-
 // Commits belong to the same account as the pull request they end up in.
 async function configureGitAuthor(): Promise<void> {
   const user: GiteaUser = await (await gitea(AUTHOR_TOKEN, "user")).json();
   for (const [key, value] of [["name", user.login], ["email", user.email]]) {
-    await run("git", ["config", "--global", `user.${key}`, value]);
+    await new Deno.Command("git", {
+      args: ["config", "--global", `user.${key}`, value],
+    }).output();
   }
 }
 
-// The superpowers plugin gives the agent its skills, including the code review
-// one that the prompt asks for. Both installs are idempotent on the persisted
-// home.
-async function installSuperpowers(bot: string): Promise<void> {
-  const commands = bot === "claude"
-    ? [
-      ["plugin", "marketplace", "add", "obra/superpowers-marketplace"],
-      ["plugin", "install", "-y", "superpowers@superpowers-marketplace"],
-    ]
-    : [["plugin", "add", "superpowers@openai-curated-remote"]];
-  for (const args of commands) await run(bot, args);
-}
-
 async function renderPrompt(): Promise<string> {
   const comments: GiteaComment[] = await (await gitea(
     REVIEWER_TOKEN,
@@ -127,7 +111,6 @@ async function runClaude(prompt: string): Promise<string> {
     );
     Deno.exit(1);
   }
-  await installSuperpowers("claude");
   const claude = new Deno.Command("claude", {
     args: [
       "--print",
@@ -191,7 +174,6 @@ async function runCodex(prompt: string): Promise<string> {
   })
     .output();
   if (!loggedIn.success) await codexDeviceLogin();
-  await installSuperpowers("codex");
   const file = await Deno.makeTempFile();
   const status = await new Deno.Command("codex", {
     args: [