Quickly mock up alternative UI / interface designs as a single self-contained HTML file with a built-in view-switcher across variations, then hand it over: download the file, attach it to an email draft, or (if you wire your own static host) publish it to a URL. Runs a short interview (what to mock, how many variations, what dimension varies, any reference) before building, and passes the output through an anti-AI-slop design gate. Also supports a build-only mode (`/mock --local`, "just build the file", "don't publish") that stops after writing the file. Triggers on `/mock`, "mock up an alternative", "mock up some variations of this screen", "build a few design options for X", "show me alternatives to this interface".
Review a GitHub pull request — the PR-review behavior that used to live in the built-in `/review`, split out now that `/review` is the review orchestrator. Fetches the PR with `gh`, reviews the diff at an evidence-graded bar (only a fully-traced finding is blocking), and optionally posts inline PR comments. For your uncommitted working diff use `/review` instead; this command is specifically for a PR. Triggers on `/github-review`, `/github-review <pr>`, "review this pull request", "review PR #N".
Write a rich session handoff to a pause-*.md file — checklist, decisions, files changed, self-critique, and a verbatim-id "coordinate closet" — so a fresh session can resume the work after /clear (via the auto-resume hook, or /session-resume). Use before you /clear with work still in flight. Triggers on `/handoff`, "write a handoff", "snapshot this session so I can resume later".
Write a detailed session handoff file by hand so the next session can pick up where this one left off. Use when the context window is filling up, you're switching phases, or you're stopping for a break.
Get a second opinion on the current change or a plan from a different model (Codex), and enforce its verdict mechanically. Codex returns a structured JSON verdict — findings scored by priority (0 critical, 1 important, 2 minor, 3 nit) against sev.schema.json — and a gate script turns that into a pass/fail exit code, so a critical or important finding gets fixed or escalated rather than re-argued by the model that wrote the code. Infra failures (rate limit, model reject, empty output) are their own outcome and never count as a clean pass. Use after writing tests, before a deploy or merge, or to review a plan before execution. Triggers on `/codex-review`, `/codex-review --plan <file>`, `/codex-review --base <ref>`, "run a codex review", "get an external review of this diff", "codex-review this before I ship".
Run multiple independent code reviewers (Codex + Gemini + a fresh Claude) on the current diff or a plan, merge their structured verdicts, and apply a consensus-gated challenge round — returning a pass/fail exit code. Use for "panel review this", "get a multi-model review before I ship", "second-opinion review this diff", or /review-panel. Complements single-reviewer /codex-review.
The top-level review verb — decide WHETHER, WHEN, WHICH, and HOW HARD to review a change before reaching for a review tool. Assesses the situation (a plan vs a diff, the risk surface, what changed since the last review, rounds already spent), picks the lightest review shape the risk justifies (in-session self-review → cross-model → multi-model panel), sets an initial round budget it will extend only on convergence, and dispatches. Exists to stop review spirals: reviewing before the plan is formed, reviewing after every trivial edit, or looping a reviewer past the point of convergence. Triggers on `/review`, "should I review this", "what review does this need", "is this worth a codex-review / panel".
Delegate a task or question to the OpenAI Codex CLI running as an isolated subagent, then relay its answer. Use when the user invokes /codex <prompt>, says "ask codex", "have codex look at / do X", or wants a second independent model to investigate a question or make a self-contained edit. Read-only by default; /codex --write lets Codex edit the working tree. Distinct from /codex-review, which is the structured JSON review gate — /codex is a general-purpose Codex delegate.