Add ordered bot profiles

Co-authored-by: Danny Kim <temeddix@gmail.com>
Co-committed-by: Danny Kim <temeddix@gmail.com>

action.yml

@@ -2,8 +2,13 @@ name: Bot agents
 description: Run a coding agent for approved Gitea issue/PR automation
 
 inputs:
-  bot-type:
+  profiles:
-    description: Which bot to run, either `codex` or `claude`
+    description: >-
+      Ordered YAML sequence of bot profiles. Each profile has `type` (`claude`
+      or `codex`), an optional `model`, and a `token` containing a Claude setup
+      token or Codex API key. Codex may omit `token` to use its persisted
+      device login. A profile is tried only after the previous one exhausts
+      its usage allowance.
     required: true
   author-token:
     description: >-
@@ -17,15 +22,6 @@ inputs:
       reviews, with the `write:issue` and `write:repository` scopes. Never
       exposed to the agent, so it must differ from the author.
     required: true
-  bot-token:
-    description: API key or token for the selected bot
-    required: false
-  model:
-    description: >-
-      Model for the selected bot. Defaults to `claude-sonnet-5` or
-      `gpt-5.6-terra`, the mid tiers, which cover reviews and fixes.
-    required: false
-
 runs:
   using: composite
   steps:
@@ -43,9 +39,7 @@ runs:
       run: deno run -A "${ACTION_PATH}/run.ts"
       env:
         ACTION_PATH: ${{ gitea.action_path }}
-        BOT_TYPE: ${{ inputs.bot-type }}
+        PROFILES: ${{ inputs.profiles }}
-        BOT_TOKEN: ${{ inputs.bot-token }}
-        MODEL: ${{ inputs.model }}
         GITEA_API_URL: ${{ gitea.api_url }}
         GITEA_REPOSITORY: ${{ gitea.repository }}
         GITEA_TOKEN: ${{ inputs.author-token }}

profiles.ts

@@ -0,0 +1,100 @@
+import { parse } from "jsr:@std/yaml@1";
+
+export type BotProfile = {
+  type: "claude" | "codex";
+  model: string;
+  token?: string;
+};
+
+const DEFAULT_MODELS: Record<BotProfile["type"], string> = {
+  claude: "claude-sonnet-5",
+  codex: "gpt-5.6-terra",
+};
+
+export function parseProfiles(text: string): BotProfile[] {
+  const value: unknown = parse(text);
+  if (!Array.isArray(value) || value.length === 0) {
+    throw new Error("profiles must contain at least one profile");
+  }
+  return value.map((entry: unknown, index) => {
+    const at = `profiles[${index}]`;
+    if (typeof entry !== "object" || entry === null) {
+      throw new Error(`${at}: expected a mapping`);
+    }
+    const { type, model, token } = entry as Record<string, unknown>;
+    if (type !== "claude" && type !== "codex") {
+      throw new Error(`${at}.type: expected "claude" or "codex"`);
+    }
+    if (model !== undefined && (typeof model !== "string" || model === "")) {
+      throw new Error(`${at}.model: expected a model name`);
+    }
+    if (token !== undefined && (typeof token !== "string" || token === "")) {
+      throw new Error(`${at}.token: expected a token`);
+    }
+    if (type === "claude" && token === undefined) {
+      throw new Error(`${at}.token: required for Claude`);
+    }
+    return {
+      type,
+      model: model ?? DEFAULT_MODELS[type],
+      ...(token && { token }),
+    };
+  });
+}
+
+function isUsageExhausted(error: unknown): boolean {
+  return /(?:usage|rate) limit|hit your limit|insufficient_quota|exceeded your current quota|too many requests|(?:api error|http error|http|status(?: code)?)[ :]+4(?:02|29)\b/i
+    .test(String(error));
+}
+
+export async function runProfiles<T>(
+  profiles: BotProfile[],
+  attempt: (profile: BotProfile) => Promise<T>,
+): Promise<T> {
+  for (const [index, profile] of profiles.entries()) {
+    try {
+      return await attempt(profile);
+    } catch (error) {
+      if (!isUsageExhausted(error) || index === profiles.length - 1) {
+        throw error;
+      }
+      console.error(`${profile.type} usage exhausted; trying next profile`);
+    }
+  }
+  throw new Error("profiles must contain at least one profile");
+}
+
+export function sanitizedEnvironment(
+  environment: Record<string, string>,
+): Record<string, string> {
+  const result = { ...environment };
+  for (
+    const name of [
+      "PROFILES",
+      "REVIEWER_TOKEN",
+      "BOT_TOKEN",
+      "CLAUDE_CODE_OAUTH_TOKEN",
+      "ANTHROPIC_API_KEY",
+      "ANTHROPIC_AUTH_TOKEN",
+      "OPENAI_API_KEY",
+      "CODEX_API_KEY",
+      "CODEX_ACCESS_TOKEN",
+    ]
+  ) {
+    delete result[name];
+  }
+  return result;
+}
+
+export function agentEnvironment(
+  environment: Record<string, string>,
+  profile: BotProfile,
+): Record<string, string> {
+  const result = sanitizedEnvironment(environment);
+  if (profile.token) {
+    result[
+      profile.type === "claude" ? "CLAUDE_CODE_OAUTH_TOKEN" : "OPENAI_API_KEY"
+    ] = profile.token;
+  }
+  return result;
+}

profiles_test.ts

@@ -0,0 +1,156 @@
+import { assertEquals, assertRejects, assertThrows } from "jsr:@std/assert@1";
+import {
+  agentEnvironment,
+  parseProfiles,
+  runProfiles,
+  sanitizedEnvironment,
+} from "./profiles.ts";
+
+Deno.test("parses profiles in fallback order with model defaults", () => {
+  assertEquals(
+    parseProfiles(`
+- type: claude
+  token: claude-token
+- type: codex
+  model: gpt-custom
+`),
+    [
+      { type: "claude", model: "claude-sonnet-5", token: "claude-token" },
+      { type: "codex", model: "gpt-custom" },
+    ],
+  );
+});
+
+Deno.test("rejects an empty profile list", () => {
+  assertThrows(() => parseProfiles("[]"), Error, "at least one profile");
+});
+
+Deno.test("rejects a Claude profile without its setup token", () => {
+  assertThrows(
+    () => parseProfiles("- type: claude"),
+    Error,
+    "profiles[0].token",
+  );
+});
+
+Deno.test("falls through only after usage exhaustion", async () => {
+  const visited: string[] = [];
+  const result = await runProfiles(
+    [
+      { type: "claude", model: "claude-sonnet-5", token: "first" },
+      { type: "codex", model: "gpt-5.6-terra" },
+    ],
+    (profile) => {
+      visited.push(profile.type);
+      if (profile.type === "claude") {
+        throw new Error("You've hit your usage limit");
+      }
+      return Promise.resolve("done");
+    },
+  );
+
+  assertEquals(result, "done");
+  assertEquals(visited, ["claude", "codex"]);
+});
+
+Deno.test("recognizes Claude's weekly limit message", async () => {
+  const result = await runProfiles(
+    [
+      { type: "claude", model: "claude-sonnet-5", token: "first" },
+      { type: "codex", model: "gpt-5.6-terra" },
+    ],
+    (profile) => {
+      if (profile.type === "claude") {
+        throw new Error("You've hit your limit · resets Monday");
+      }
+      return Promise.resolve("fallback");
+    },
+  );
+
+  assertEquals(result, "fallback");
+});
+
+Deno.test("recognizes provider API exhaustion status", async () => {
+  const results = await Promise.all(
+    ["API Error: 402 Insufficient funds", "HTTP error: 429"]
+      .map((message) =>
+        runProfiles(
+          [
+            { type: "claude", model: "claude-sonnet-5", token: "first" },
+            { type: "codex", model: "gpt-5.6-terra" },
+          ],
+          (profile) => {
+            if (profile.type === "claude") throw new Error(message);
+            return Promise.resolve("fallback");
+          },
+        )
+      ),
+  );
+
+  assertEquals(results, ["fallback", "fallback"]);
+});
+
+Deno.test("preserves an ordinary agent failure", async () => {
+  const visited: string[] = [];
+  await assertRejects(
+    () =>
+      runProfiles(
+        [
+          { type: "claude", model: "claude-sonnet-5", token: "first" },
+          { type: "codex", model: "gpt-5.6-terra" },
+        ],
+        (profile) => {
+          visited.push(profile.type);
+          throw new Error("tests failed");
+        },
+      ),
+    Error,
+    "tests failed",
+  );
+  assertEquals(visited, ["claude"]);
+});
+
+Deno.test("does not mistake incidental quota text for exhaustion", async () => {
+  const visited: string[] = [];
+  await assertRejects(
+    () =>
+      runProfiles(
+        [
+          { type: "claude", model: "claude-sonnet-5", token: "first" },
+          { type: "codex", model: "gpt-5.6-terra" },
+        ],
+        (profile) => {
+          visited.push(profile.type);
+          throw new Error("quota parser test failed at line 429");
+        },
+      ),
+    Error,
+    "quota parser test failed",
+  );
+  assertEquals(visited, ["claude"]);
+});
+
+Deno.test("exposes only the selected profile credential to the agent", () => {
+  const base = {
+    HOME: "/home/bot",
+    PROFILES: "contains every secret",
+    REVIEWER_TOKEN: "reviewer",
+    BOT_TOKEN: "legacy",
+    CLAUDE_CODE_OAUTH_TOKEN: "old-claude",
+    ANTHROPIC_API_KEY: "old-anthropic-key",
+    ANTHROPIC_AUTH_TOKEN: "old-anthropic-token",
+    OPENAI_API_KEY: "old-openai",
+    CODEX_API_KEY: "old-codex-key",
+    CODEX_ACCESS_TOKEN: "old-codex-token",
+  };
+
+  assertEquals(
+    agentEnvironment(base, {
+      type: "claude",
+      model: "claude-sonnet-5",
+      token: "selected",
+    }),
+    { HOME: "/home/bot", CLAUDE_CODE_OAUTH_TOKEN: "selected" },
+  );
+  assertEquals(sanitizedEnvironment(base), { HOME: "/home/bot" });
+});

prompt.md

@@ -19,31 +19,41 @@ author's push credentials. Read the code there, run its checks and tests when
 they bear on the task, and push from there.
 
 For a `pull_request` event, and for a comment on a pull request that asks you to
-review it, invoke the installed `superpowers:requesting-code-review` skill
+review it, use the installed `superpowers:requesting-code-review` skill before
-before inspecting the PR. You are the reviewer that has already been dispatched,
+inspecting the PR. Its exact installed instructions and reviewer template are
-so run the skill's code reviewer template yourself instead of dispatching
+included below, so this run fails before reaching you if they could not be
-another reviewer. Use the pull request and triggering instruction as its
+loaded. You are the reviewer that has already been dispatched, so run the
-description and requirements, and review the exact base and head SHAs without
+skill's code reviewer template yourself instead of dispatching another reviewer.
-changing code. Run the project's required checks on the head and treat a real
+Use the pull request and triggering instruction as its description and
-failure as at least Important. The bot automation workflow itself is not a
+requirements, and review the exact base and head SHAs without changing code. Run
-project check: ignore its skipped or canceled duplicate/automatic runs, and
+the project's required checks on the head and treat a real failure as at least
-never reject a PR because the current review run is unfinished. Only a failed
+Important. The bot automation workflow itself is not a project check: ignore its
-required check for the reviewed head blocks approval. Check the whole repository
+skipped or canceled duplicate/automatic runs, and never reject a PR because the
-against the code rules at the end of this prompt, not only the diff; a violation
+current review run is unfinished. Only a failed required check for the reviewed
-is at least Important even when the diff did not cause it. Write the complete
+head blocks approval. Check the whole repository against the code rules at the
-review, and nothing else, to the file `${REVIEW_PATH}`: it is posted verbatim as
+end of this prompt, not only the diff; a violation is at least Important even
-a pull request review from the bot account, and your final response is not
+when the diff did not cause it. Write the complete review, and nothing else, to
-posted at all. The file's first line must be exactly the verdict and nothing
+the file `${REVIEW_PATH}`: it is posted verbatim as a pull request review from
-else: `Approved` when the head is ready to merge, `Changes requested` otherwise.
+the bot account, and your final response is not posted at all. The file's first
-The mark in front of it is added when posting, so write the words alone; any
+line must be exactly the verdict and nothing else: `Approved` when the head is
-other first line is posted as a plain comment, which wastes the run. Minor
+ready to merge, `Changes requested` otherwise. The mark in front of it is added
-issues alone never block, and neither does a finding the author has answered in
+when posting, so write the words alone; any other first line is posted as a
-the comment history below as intended or a false alarm, once the code or docs
+plain comment, which wastes the run. Minor issues alone never block, and neither
-make that clear. When the verdict is `Changes requested`, the second line names
+does a finding the author has answered in the comment history below as intended
-what must change in one line, addressed to the author; the author's own agent
+or a false alarm, once the code or docs make that clear. When the verdict is
-picks the fixes up, so never ask `@bot` to make them. For UI changes, check that
+`Changes requested`, the second line names what must change in one line,
-the result is aligned, clean, and pixel-perfect, and that included screenshots
+addressed to the author; the author's own agent picks the fixes up, so never ask
-prove the intended result was achieved.
+`@bot` to make them. For UI changes, check that the result is aligned, clean,
+and pixel-perfect, and that included screenshots prove the intended result was
+achieved.
+
+# Installed Superpowers review skill
+
+${SUPERPOWERS_REVIEW_SKILL}
+
+# Installed Superpowers reviewer template
+
+${SUPERPOWERS_REVIEW_TEMPLATE}
 
 Every finding that belongs to one line of the diff goes on that line instead of
 into the body. Write those to `${ANCHORS_PATH}` as a JSON array, each entry

run.ts

@@ -4,10 +4,19 @@
 // so it appears as the bot account.
 import { TextLineStream } from "jsr:@std/streams@1/text-line-stream";
 import { retryInvalidToken } from "./auth.ts";
+import {
+  agentEnvironment,
+  type BotProfile,
+  parseProfiles,
+  runProfiles,
+  sanitizedEnvironment,
+} from "./profiles.ts";
 import {
   type BotType,
+  loadSuperpowersReviewGuide,
   parseBotType,
   superpowersInstallCommands,
+  type SuperpowersReviewGuide,
 } from "./superpowers.ts";
 
 type GiteaUser = { login: string; email: string };
@@ -23,20 +32,11 @@ const API = env("GITEA_API_URL");
 const REPO = env("GITEA_REPOSITORY");
 const INDEX = env("ISSUE_INDEX");
 const EVENT = env("EVENT_NAME");
-const BOT = parseBotType(env("BOT_TYPE"));
+const PROFILES = parseProfiles(env("PROFILES"));
 const AUTHOR_TOKEN = env("GITEA_TOKEN");
 const REVIEWER_TOKEN = env("REVIEWER_TOKEN");
 const RULES_PATH = "repos/commons/code-rules/raw/README.md";
-// The mid tiers: a run follows a fixed template and the project's checks.
+const HELPER_ENV = sanitizedEnvironment(Deno.env.toObject());
-const DEFAULT_MODELS: Record<string, string> = {
-  claude: "claude-sonnet-5",
-  codex: "gpt-5.6-terra",
-};
-const model = (bot: string): string =>
-  Deno.env.get("MODEL") || DEFAULT_MODELS[bot];
-
-// The reviewer token is withheld so the agent cannot approve as the bot.
-const { REVIEWER_TOKEN: _, ...agentEnv } = Deno.env.toObject();
 
 async function gitea(
   token: string,
@@ -148,7 +148,11 @@ 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();
+  const { success, code } = await new Deno.Command(command, {
+    args,
+    env: HELPER_ENV,
+    clearEnv: true,
+  }).output();
   if (!success) throw new Error(`${command} ${args[0]} exited with ${code}`);
 }
 
@@ -160,6 +164,20 @@ async function installSuperpowers(bot: BotType): Promise<void> {
   }
 }
 
+async function prepareSuperpowers(
+  bot: BotType,
+): Promise<SuperpowersReviewGuide> {
+  await installSuperpowers(bot);
+  const guide = await loadSuperpowersReviewGuide(bot, env("HOME"));
+  console.log(
+    `Loaded Superpowers requesting-code-review ${guide.version} from ${guide.skillPath}`,
+  );
+  console.log(
+    `Loaded Superpowers reviewer template from ${guide.templatePath}`,
+  );
+  return guide;
+}
+
 // 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();
@@ -168,7 +186,7 @@ async function configureGitAuthor(): Promise<void> {
   }
 }
 
-async function renderPrompt(): Promise<string> {
+async function renderPrompt(guide: SuperpowersReviewGuide): Promise<string> {
   const comments: GiteaComment[] = await (await gitea(
     REVIEWER_TOKEN,
     `repos/${REPO}/issues/${INDEX}/comments?limit=100`,
@@ -185,6 +203,8 @@ async function renderPrompt(): Promise<string> {
     ISSUE_INDEX: INDEX,
     REVIEW_PATH,
     ANCHORS_PATH,
+    SUPERPOWERS_REVIEW_SKILL: guide.skill,
+    SUPERPOWERS_REVIEW_TEMPLATE: guide.template,
   };
   const template = await Deno.readTextFile(
     new URL("prompt.md", import.meta.url),
@@ -195,31 +215,40 @@ async function renderPrompt(): Promise<string> {
   );
 }
 
-async function runClaude(prompt: string): Promise<string> {
+async function runClaude(profile: BotProfile): Promise<string> {
-  const token = Deno.env.get("BOT_TOKEN");
+  const prompt = await renderPrompt(await prepareSuperpowers("claude"));
-  if (!token) {
-    throw new Error(
-      "Run `claude setup-token` locally and set the `bot-token` action input.",
-    );
-  }
-  await installSuperpowers("claude");
   const claude = new Deno.Command("claude", {
     args: [
       "--print",
       "--dangerously-skip-permissions",
       "--model",
-      model("claude"),
+      profile.model,
       "--output-format",
       "stream-json",
       "--verbose",
       prompt,
     ],
     // Claude refuses --dangerously-skip-permissions as root outside a sandbox.
-    env: { ...agentEnv, CLAUDE_CODE_OAUTH_TOKEN: token, IS_SANDBOX: "1" },
+    env: {
+      ...agentEnvironment(Deno.env.toObject(), profile),
+      IS_SANDBOX: "1",
+    },
     clearEnv: true,
     stdout: "piped",
+    stderr: "piped",
   }).spawn();
-  let result: { result?: string; subtype: string } | undefined;
+  let result:
+    | { is_error?: boolean; result?: string; subtype: string }
+    | undefined;
+  let error = "";
+  const copyError = claude.stderr.pipeThrough(new TextDecoderStream()).pipeTo(
+    new WritableStream({
+      write(chunk) {
+        error += chunk;
+        console.error(chunk);
+      },
+    }),
+  );
   // Print events as they stream so the runner does not kill the job as a zombie.
   const lines = claude.stdout
     .pipeThrough(new TextDecoderStream())
@@ -233,9 +262,17 @@ async function runClaude(prompt: string): Promise<string> {
     }
     if (event.type === "result") result = event;
   }
-  await claude.status;
+  const [status] = await Promise.all([claude.status, copyError]);
+  if (result?.is_error) {
+    throw new Error(result.result ?? `claude ended with ${result.subtype}`);
+  }
   if (result?.result === undefined) {
-    throw new Error(`claude ended with ${result?.subtype ?? "no result"}`);
+    throw new Error(
+      error.trim() || `claude ended with ${result?.subtype ?? "no result"}`,
+    );
+  }
+  if (!status.success) {
+    throw new Error(error.trim() || `claude exited with ${status.code}`);
   }
   return result.result;
 }
@@ -244,6 +281,8 @@ async function runClaude(prompt: string): Promise<string> {
 async function codexDeviceLogin(): Promise<void> {
   const login = new Deno.Command("codex", {
     args: ["login", "--device-auth"],
+    env: HELPER_ENV,
+    clearEnv: true,
     stdout: "piped",
     stderr: "piped",
   }).spawn();
@@ -266,53 +305,92 @@ async function codexDeviceLogin(): Promise<void> {
   await Promise.all([status, drained]);
 }
 
-async function runCodex(prompt: string): Promise<string> {
+async function codexApiLogin(token: string, codexHome: string): Promise<void> {
-  const loggedIn = await new Deno.Command("codex", {
+  const login = new Deno.Command("codex", {
-    args: ["login", "status"],
+    args: ["login", "--with-api-key"],
-  })
+    env: { ...HELPER_ENV, CODEX_HOME: codexHome },
-    .output();
+    clearEnv: true,
-  if (!loggedIn.success) await codexDeviceLogin();
+    stdin: "piped",
-  await installSuperpowers("codex");
+  }).spawn();
-  const file = await Deno.makeTempFile();
+  const writer = login.stdin.getWriter();
-  const attempt = async () => {
+  await writer.write(new TextEncoder().encode(`${token}\n`));
-    const codex = new Deno.Command("codex", {
+  await writer.close();
-      args: [
+  const status = await login.status;
-        "exec",
+  if (!status.success) {
-        "--model",
+    throw new Error(`codex login exited with ${status.code}`);
-        model("codex"),
+  }
-        "--dangerously-bypass-approvals-and-sandbox",
+}
-        "--output-last-message",
+
-        file,
+async function runCodex(profile: BotProfile): Promise<string> {
-        prompt,
+  const currentEnv = agentEnvironment(Deno.env.toObject(), profile);
-      ],
+  const temporaryHome = profile.token ? await Deno.makeTempDir() : null;
-      env: agentEnv,
+  if (temporaryHome !== null) currentEnv.CODEX_HOME = temporaryHome;
-      clearEnv: true,
+  try {
-      stdout: "inherit",
+    if (profile.token) {
-      stderr: "piped",
+      await codexApiLogin(profile.token, temporaryHome!);
-    }).spawn();
+    } else {
-    const decoder = new TextDecoder();
+      const loggedIn = await new Deno.Command("codex", {
-    let error = "";
+        args: ["login", "status"],
-    for await (const chunk of codex.stderr) {
+        env: HELPER_ENV,
-      await Deno.stderr.write(chunk);
+        clearEnv: true,
-      error += decoder.decode(chunk, { stream: true });
+      }).output();
+      if (!loggedIn.success) await codexDeviceLogin();
     }
-    error += decoder.decode();
+    const prompt = await renderPrompt(await prepareSuperpowers("codex"));
-    return { status: await codex.status, error };
+    const file = await Deno.makeTempFile();
-  };
+    const attempt = async () => {
-  const { status } = await retryInvalidToken(attempt, async () => {
+      const codex = new Deno.Command("codex", {
-    await run("codex", ["logout"]);
+        args: [
-    await codexDeviceLogin();
+          "exec",
-  });
+          "--model",
-  if (!status.success) throw new Error(`codex exited with ${status.code}`);
+          profile.model,
-  return await Deno.readTextFile(file);
+          "--dangerously-bypass-approvals-and-sandbox",
+          "--output-last-message",
+          file,
+          prompt,
+        ],
+        env: currentEnv,
+        clearEnv: true,
+        stdout: "inherit",
+        stderr: "piped",
+      }).spawn();
+      const decoder = new TextDecoder();
+      let error = "";
+      for await (const chunk of codex.stderr) {
+        await Deno.stderr.write(chunk);
+        error += decoder.decode(chunk, { stream: true });
+      }
+      error += decoder.decode();
+      return { status: await codex.status, error };
+    };
+    const result = profile.token
+      ? await attempt()
+      : await retryInvalidToken(attempt, async () => {
+        await run("codex", ["logout"]);
+        await codexDeviceLogin();
+      });
+    if (!result.status.success) {
+      throw new Error(
+        result.error.trim() || `codex exited with ${result.status.code}`,
+      );
+    }
+    return await Deno.readTextFile(file);
+  } finally {
+    if (temporaryHome !== null) {
+      await Deno.remove(temporaryHome, { recursive: true });
+    }
+  }
 }
 
 try {
   await configureGitAuthor();
-  const prompt = await renderPrompt();
+  const result = await runProfiles(
-  const result = BOT === "claude"
+    PROFILES,
-    ? await runClaude(prompt)
+    (profile) =>
-    : await runCodex(prompt);
+      parseBotType(profile.type) === "claude"
+        ? runClaude(profile)
+        : runCodex(profile),
+  );
   await postResult(result);
 } catch (error) {
   await postComment(`Bot failed: ${error}`);

superpowers.ts

@@ -1,3 +1,5 @@
+import { join } from "jsr:@std/path@1";
+
 export type BotType = "claude" | "codex";
 
 export type InstallCommand = {
@@ -5,6 +7,24 @@ export type InstallCommand = {
   args: string[];
 };
 
+export type SuperpowersReviewGuide = {
+  version: string;
+  skillPath: string;
+  templatePath: string;
+  skill: string;
+  template: string;
+};
+
+export type SuperpowersFileSystem = {
+  readDir(path: string): AsyncIterable<Deno.DirEntry>;
+  readTextFile(path: string): Promise<string>;
+};
+
+const systemFileSystem: SuperpowersFileSystem = {
+  readDir: Deno.readDir,
+  readTextFile: Deno.readTextFile,
+};
+
 export function parseBotType(value: string): BotType {
   if (value === "claude" || value === "codex") return value;
   throw new Error(`unsupported bot type: ${value}`);
@@ -40,3 +60,88 @@ export function superpowersInstallCommands(
     args: ["plugin", "add", "superpowers@openai-curated-remote"],
   }];
 }
+
+type Candidate = SuperpowersReviewGuide & { directory: string };
+
+async function readCandidate(
+  directory: string,
+  fileSystem: SuperpowersFileSystem,
+): Promise<Candidate | null> {
+  if (!directory.split(/[\\/]/).includes("superpowers")) return null;
+  const skillPath = join(directory, "SKILL.md");
+  const templatePath = join(directory, "code-reviewer.md");
+  try {
+    const [skill, template] = await Promise.all([
+      fileSystem.readTextFile(skillPath),
+      fileSystem.readTextFile(templatePath),
+    ]);
+    return {
+      directory,
+      version: directory.split(/[\\/]/).at(-3) ?? "unknown",
+      skillPath,
+      templatePath,
+      skill,
+      template,
+    };
+  } catch (error) {
+    if (error instanceof Deno.errors.NotFound) return null;
+    throw error;
+  }
+}
+
+async function findCandidates(
+  directory: string,
+  candidates: Candidate[],
+  fileSystem: SuperpowersFileSystem,
+): Promise<void> {
+  let entries: Deno.DirEntry[];
+  try {
+    entries = [];
+    for await (const entry of fileSystem.readDir(directory)) {
+      entries.push(entry);
+    }
+  } catch (error) {
+    if (error instanceof Deno.errors.NotFound) return;
+    throw error;
+  }
+  for (const entry of entries) {
+    if (!entry.isDirectory) continue;
+    const child = join(directory, entry.name);
+    if (entry.name === "requesting-code-review") {
+      const candidate = await readCandidate(child, fileSystem);
+      if (candidate !== null) candidates.push(candidate);
+    } else {
+      await findCandidates(child, candidates, fileSystem);
+    }
+  }
+}
+
+// Load the installed files rather than trusting skill discovery in a later
+// non-interactive agent process. The newest cached plugin version is the one
+// the installers activate, and the exact paths are reported by the caller.
+export async function loadSuperpowersReviewGuide(
+  bot: BotType,
+  home: string,
+  fileSystem: SuperpowersFileSystem = systemFileSystem,
+): Promise<SuperpowersReviewGuide> {
+  const root = join(
+    home,
+    bot === "codex" ? ".codex" : ".claude",
+    "plugins",
+    "cache",
+  );
+  const candidates: Candidate[] = [];
+  await findCandidates(root, candidates, fileSystem);
+  candidates.sort((left, right) =>
+    left.version.localeCompare(right.version, undefined, { numeric: true }) ||
+    left.directory.localeCompare(right.directory)
+  );
+  const guide = candidates.at(-1);
+  if (guide === undefined) {
+    throw new Error(
+      `installed Superpowers requesting-code-review files not found under ${root}`,
+    );
+  }
+  const { directory: _, ...result } = guide;
+  return result;
+}

superpowers_test.ts

@@ -1,5 +1,40 @@
-import { assertEquals, assertThrows } from "jsr:@std/assert@1";
+import { assertEquals, assertRejects, assertThrows } from "jsr:@std/assert@1";
-import { parseBotType, superpowersInstallCommands } from "./superpowers.ts";
+import { join } from "jsr:@std/path@1";
+import {
+  loadSuperpowersReviewGuide,
+  parseBotType,
+  type SuperpowersFileSystem,
+  superpowersInstallCommands,
+} from "./superpowers.ts";
+
+function fakeFileSystem(files: Record<string, string>): SuperpowersFileSystem {
+  return {
+    readTextFile(path) {
+      const contents = files[path];
+      return contents === undefined
+        ? Promise.reject(new Deno.errors.NotFound(path))
+        : Promise.resolve(contents);
+    },
+    async *readDir(directory) {
+      const prefix = `${directory}/`;
+      const children = new Map<string, boolean>();
+      for (const path of Object.keys(files)) {
+        if (!path.startsWith(prefix)) continue;
+        const [name, ...rest] = path.slice(prefix.length).split("/");
+        if (name !== "") children.set(name, rest.length > 0);
+      }
+      if (children.size === 0) throw new Deno.errors.NotFound(directory);
+      for (const [name, isDirectory] of children) {
+        yield {
+          name,
+          isDirectory,
+          isFile: !isDirectory,
+          isSymlink: false,
+        };
+      }
+    },
+  };
+}
 
 Deno.test("installs Superpowers from the Codex marketplace", () => {
   assertEquals(superpowersInstallCommands("codex"), [{
@@ -38,3 +73,47 @@ Deno.test("rejects an unsupported bot type", () => {
     "unsupported bot type: other",
   );
 });
+
+Deno.test("loads the newest installed Superpowers review guide", async () => {
+  const home = "/home/bot";
+  const older = join(
+    home,
+    ".codex/plugins/cache/openai-curated-remote/superpowers/6.3.0/skills/requesting-code-review",
+  );
+  const newer = join(
+    home,
+    ".codex/plugins/cache/openai-curated-remote/superpowers/6.10.0/skills/requesting-code-review",
+  );
+  const guide = await loadSuperpowersReviewGuide(
+    "codex",
+    home,
+    fakeFileSystem({
+      [join(older, "SKILL.md")]: "old",
+      [join(older, "code-reviewer.md")]: "old template",
+      [join(newer, "SKILL.md")]: "new",
+      [join(newer, "code-reviewer.md")]: "template",
+    }),
+  );
+
+  assertEquals(guide.version, "6.10.0");
+  assertEquals(guide.skill, "new");
+  assertEquals(guide.template, "template");
+  assertEquals(guide.skillPath, join(newer, "SKILL.md"));
+});
+
+Deno.test("fails when the installed review guide is incomplete", async () => {
+  const home = "/home/bot";
+  const directory = join(
+    home,
+    ".claude/plugins/cache/superpowers-marketplace/superpowers/6.3.0/skills/requesting-code-review",
+  );
+  const fileSystem = fakeFileSystem({
+    [join(directory, "SKILL.md")]: "skill",
+  });
+
+  await assertRejects(
+    () => loadSuperpowersReviewGuide("claude", home, fileSystem),
+    Error,
+    "installed Superpowers requesting-code-review files not found",
+  );
+});