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async-pr-review

async-pr-review is a skill for Claude Code, Codex, Gemini CLI from google-gemini/gemini-cli. It costs 37 tokens per session (792 once invoked), scanned A, original, Apache-2.0.

A background pull request review that runs project checks, tests, and an AI-assisted code review while you continue working. A pull request is a proposed change submitted for review before it is added to a shared codebase.

In plain words
What is it for?
Use it to start an asynchronous review of a pull request, run background checks, and inspect the result when the review is complete.
Why use it?
It removes the need to wait for every check and review step to finish in your current workspace. You can start the review, continue working, and check its status later.

Skill for Claude CodeCodexGemini CLI

not rated 107k +12 today A scan 37 tokens original Apache-2.0
View the source file google-gemini/gemini-cli
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/google-gemini/gemini-cli/async-pr-review
Any agent
npx skills add google-gemini/gemini-cli --skill async-pr-review
Clone the repo
git clone --depth 1 https://github.com/google-gemini/gemini-cli

Made for: Claude Code, Codex, Gemini CLI.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for async-pr-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/google-gemini/gemini-cli/async-pr-review.svg)](https://agentmods.dev/skills/google-gemini/gemini-cli/async-pr-review)
Your own site
<a href="https://agentmods.dev/skills/google-gemini/gemini-cli/async-pr-review"><img src="https://agentmods.dev/badge/skills/google-gemini/gemini-cli/async-pr-review.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 792 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00037 $0.00792
Opus 5 $0.00018 $0.00396
Sonnet 5 $0.00007 $0.00158
Haiku 4.5 $0.00004 $0.00079

Measured 4d ago against content hash 1502652fdef0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

async-pr-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/async-review.sh, scripts/check-async-review.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.gemini/skills/async-pr-review/SKILL.md · 45 lines

How it starts

The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Async PR Review

This skill provides a set of tools to asynchronously review a Pull Request. It will create a background job to run the project's preflight checks, execute Gemini-powered test plans, and perform a comprehensive code review using custom prompts.

This skill is designed to showcase an advanced "Agentic Asynchronous Pattern":

  1. Native Background Shells vs Headless Inference: While Gemini CLI can natively spawn and detach background shell commands (using the run_shell_command tool with is_background: true), a standard bash background job cannot perform LLM inference. To conduct AI-driven code reviews and test generation in the background, the shell script must invoke the gemini executable headlessly using -p. This offloads the AI tasks to independent worker agents.
  2. Dynamic Git Scoping: The review scripts avoid hardcoded paths. They use git rev-parse --show-toplevel to automatically resolve the root of the user's current project.
  3. Ephemeral Worktrees: Instead of checking out branches in the user's main workspace, the skill provisions temporary git worktrees in .gemini/tmp/async-reviews/pr-<number>. This prevents git lock conflicts and namespace pollution.
  4. Agentic Evaluation (check-async-review.sh): The check script outputs clean JSON/text statuses for the main agent to parse. The interactive agent itself synthesizes the final assessment dynamically from the generated log files.

Workflow

  1. Determine Action: Establish whether the user wants to start a new async review or check the status of an existing one.
    • If the user says "start an async review for PR #123" or similar, proceed to Start Review.
    • If the user says "check the status of my async review for PR #123" or similar, proceed to Check Status.

Start Review

If the user wants to start a new async PR review:

  1. Ask the user for the PR number if they haven't provided it.
  2. Execute the async-review.sh script, passing the PR number as the first argument. Be sure to run it with the is_background flag set to true to ensure it immediately detaches. 
    .gemini/skills/async-pr-review/scripts/async-review.sh <PR_NUMBER>
  3. Inform the user that the tasks have started successfully and they can check the status later.

Read the full file on GitHub · 45 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 45 lines · 37 tokens per session scan A 1502652fdef0

Subscribe to this mod's changes

async-pr-review is a skill published in the GitHub repository google-gemini/gemini-cli (106,799 stars, last pushed today), licensed Apache-2.0. It adds 37 tokens to every session and 792 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Code reviewaiai-agentscligeminigemini-apimcp-client
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