diff --git a/plugins/codex/commands/review.md b/plugins/codex/commands/review.md
index fb70a487..337a655b 100644
--- a/plugins/codex/commands/review.md
+++ b/plugins/codex/commands/review.md
@@ -1,6 +1,6 @@
 ---
 description: Run a Codex code review against local git state
-argument-hint: '[--wait|--background] [--base <ref>] [--scope auto|working-tree|branch]'
+argument-hint: '[--wait|--background|--ask] [--base <ref>] [--scope auto|working-tree|branch]'
 disable-model-invocation: true
 allowed-tools: Read, Glob, Grep, Bash(node:*), Bash(git:*), AskUserQuestion
 ---
@@ -16,26 +16,27 @@ Core constraint:
 - Your only job is to run the review and return Codex's output verbatim to the user.
 
 Execution mode rules:
-- If the raw arguments include `--wait`, do not ask. Run the review in the foreground.
-- If the raw arguments include `--background`, do not ask. Run the review in a Claude background task.
-- Otherwise, estimate the review size before asking:
+- If the raw arguments include `--wait`, run the review in the foreground.
+- If the raw arguments include `--background`, run the review in a Claude background task.
+- Estimate the review size in every remaining case:
   - For working-tree review, start with `git status --short --untracked-files=all`.
   - For working-tree review, also inspect both `git diff --shortstat --cached` and `git diff --shortstat`.
   - For base-branch review, use `git diff --shortstat <base>...HEAD`.
   - Treat untracked files or directories as reviewable work even when `git diff --shortstat` is empty.
   - Only conclude there is nothing to review when the relevant working-tree status is empty or the explicit branch diff is empty.
-  - Recommend waiting only when the review is clearly tiny, roughly 1-2 files total and no sign of a broader directory-sized change.
-  - In every other case, including unclear size, recommend background.
+  - A review is "tiny" when it is clearly 1-2 files total with no sign of a broader directory-sized change. Everything else, including unclear size, is "non-tiny".
   - When in doubt, run the review instead of declaring that there is nothing to review.
-- Then use `AskUserQuestion` exactly once with two options, putting the recommended option first and suffixing its label with `(Recommended)`:
+- If the raw arguments include `--ask`, use `AskUserQuestion` exactly once with two options, putting the recommended option first (tiny → `Wait for results`, non-tiny → `Run in background`) and suffixing its label with `(Recommended)`:
   - `Wait for results`
   - `Run in background`
+- Otherwise (no `--wait` / `--background` / `--ask`), auto-decide without asking: tiny → foreground, non-tiny → background. This keeps `/codex:review` runnable unattended inside multi-step plans. Users who want the old prompt can pass `--ask`; users who want to force a mode can pass `--wait` or `--background`.
 
 Argument handling:
 - Preserve the user's arguments exactly.
-- Do not strip `--wait` or `--background` yourself.
+- Do not strip `--wait`, `--background`, or `--ask` yourself.
 - Do not add extra review instructions or rewrite the user's intent.
 - The companion script parses `--wait` and `--background`, but Claude Code's `Bash(..., run_in_background: true)` is what actually detaches the run.
+- The companion script also accepts `--ask` as a no-op boolean so it can be safely forwarded in `$ARGUMENTS`. Only Claude's prompt logic above consumes it.
 - `/codex:review` is native-review only. It does not support staged-only review, unstaged-only review, or extra focus text.
 - If the user needs custom review instructions or more adversarial framing, they should use `/codex:adversarial-review`.
 
diff --git a/plugins/codex/scripts/codex-companion.mjs b/plugins/codex/scripts/codex-companion.mjs
index 35222fd5..83ca3342 100644
--- a/plugins/codex/scripts/codex-companion.mjs
+++ b/plugins/codex/scripts/codex-companion.mjs
@@ -682,7 +682,7 @@ function enqueueBackgroundTask(cwd, job, request) {
 async function handleReviewCommand(argv, config) {
   const { options, positionals } = parseCommandInput(argv, {
     valueOptions: ["base", "scope", "model", "cwd"],
-    booleanOptions: ["json", "background", "wait"],
+    booleanOptions: ["json", "background", "wait", "ask"],
     aliasMap: {
       m: "model"
     }
diff --git a/tests/commands.test.mjs b/tests/commands.test.mjs
index ef5adb09..25335be5 100644
--- a/tests/commands.test.mjs
+++ b/tests/commands.test.mjs
@@ -30,8 +30,10 @@ test("review command uses AskUserQuestion and background Bash while staying revi
   assert.match(source, /git status --short --untracked-files=all/);
   assert.match(source, /git diff --shortstat/);
   assert.match(source, /Treat untracked files or directories as reviewable work/i);
-  assert.match(source, /Recommend waiting only when the review is clearly tiny, roughly 1-2 files total/i);
-  assert.match(source, /In every other case, including unclear size, recommend background/i);
+  assert.match(source, /A review is "tiny" when it is clearly 1-2 files total/i);
+  assert.match(source, /auto-decide without asking: tiny → foreground, non-tiny → background/i);
+  assert.match(source, /If the raw arguments include `--ask`/);
+  assert.match(source, /\[--wait\|--background\|--ask\]/);
   assert.match(source, /The companion script parses `--wait` and `--background`/i);
   assert.match(source, /Claude Code's `Bash\(..., run_in_background: true\)` is what actually detaches the run/i);
   assert.match(source, /When in doubt, run the review/i);