Agent skill

Aster Review CI

Run aster code reviews non-interactively in CI, GitHub Actions, or from another agent.

Apache-2.0Auto-check passedDevelopment

Install Aster Review CI

skills CLI

$ npx skills add Zfinix/aster --skill aster-review-ci -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Zfinix/aster aster-review-ci --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Zfinix/aster.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/aster-review-ci .claude/skills/aster-review-ci && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "aster-review-ci" agent skill from https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci into .claude/skills/aster-review-ci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aster-review-ci", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Zfinix/aster --skill aster-review-ci -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Zfinix/aster aster-review-ci --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Zfinix/aster.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/aster-review-ci .agents/skills/aster-review-ci && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "aster-review-ci" agent skill from https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci into .agents/skills/aster-review-ci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aster-review-ci", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Zfinix/aster --skill aster-review-ci -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Zfinix/aster aster-review-ci --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Zfinix/aster.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/aster-review-ci .cursor/skills/aster-review-ci && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "aster-review-ci" agent skill from https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci into .cursor/skills/aster-review-ci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aster-review-ci", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Zfinix/aster.git --path skills/aster-review-ci

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Zfinix/aster --skill aster-review-ci -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Zfinix/aster aster-review-ci --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Zfinix/aster.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/aster-review-ci .gemini/skills/aster-review-ci && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "aster-review-ci" agent skill from https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci into .gemini/skills/aster-review-ci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aster-review-ci", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Zfinix/aster aster-review-ci

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Zfinix/aster --skill aster-review-ci -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Zfinix/aster.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/aster-review-ci .github/skills/aster-review-ci && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "aster-review-ci" agent skill from https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci into .github/skills/aster-review-ci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aster-review-ci", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Zfinix/aster --skill aster-review-ci -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Zfinix/aster aster-review-ci --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Zfinix/aster.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/aster-review-ci .opencode/skills/aster-review-ci && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "aster-review-ci" agent skill from https://github.com/Zfinix/aster/tree/main/skills/aster-review-ci into .opencode/skills/aster-review-ci/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aster-review-ci", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: aster-review-ci
GitHub stars: 118
Token cost: ~640 tokens
SKILL.md length: 197 words
Files: 1
Skills in repo: 19
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Run aster code reviews non-interactively in CI, GitHub Actions, or from another agent.

Wiring aster into a pipeline
SKILL.md covers Picking the diff, Machine-readable output, Posting to the PR and Scoping and thresholds, plus 1 more section
Calls git; needs GITHUB_TOKEN and ASTER_API_KEY
Posting PR comments

What it does

Aster Review CI is an agent skill from Zfinix/aster. Run aster code reviews non-interactively in CI, GitHub Actions, or from another agent. Covers aster review --pr, --json, --stream, --comment, diff-from-stdin, token handling, and filtering findings. Use when wiring aster into a pipeline, posting PR comments, or parsing review output programmatically.

Its SKILL.md is about 640 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering CI/CD, Code review and Pull requests. It works with GitHub Actions. The repository describes itself as: An open-source agent harness for software work. The licence is Apache-2.0.

When your agent uses it

Wiring aster into a pipeline
Posting PR comments
Parsing review output programmatically

Example prompts

“/aster-review-ci”

Requirements

A credential in GITHUB_TOKEN
A credential in ASTER_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit f77a5b4. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- git
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- GITHUB_TOKEN
- ASTER_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Aster Review CI loads about 640 tokens when it runs. Until then it costs about 81 tokens; SKILL.md has 197 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~81
When it runs · the whole SKILL.md, loaded when a task matches: ~640

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Zfinix/aster at commit f77a5b4, republished under its Apache-2.0 licence (© Zfinix). 197 words, ~640 tokens.

Download SKILL.mdSave it as .claude/skills/aster-review-ci/SKILL.md (or your agent's skills folder).

name: aster-review-ci
description: Run aster code reviews non-interactively in CI, GitHub Actions, or from another agent. Covers `aster review --pr`, `--json`, `--stream`, `--comment`, diff-from-stdin, token handling, and filtering findings. Use when wiring aster into a pipeline, posting PR comments, or parsing review output programmatically.

Aster review in CI and automation

aster review reads a diff, hypothesizes defects, verifies them against the indexed repo, and reports findings. Everything is flag-driven; nothing requires a terminal.

Picking the diff

aster review                          # current branch vs its base
aster review --range main..HEAD       # explicit git range
aster review --diff changes.patch     # a saved diff file
git diff main... | aster review --diff -   # diff from stdin
aster review --pr 123                 # fetch a GitHub PR's diff

--pr needs a token: --token, else GITHUB_TOKEN, else the one stored by aster login. The repo defaults to the origin remote; override with --repo owner/repo.

Machine-readable output

aster review --json                   # findings as one JSON array
aster review --stream                 # NDJSON progress events, one per line

Use --json in CI and pipe it to aster fix or your own tooling. --stream is for editors and UIs that want live progress. --tui is the interactive browser; never use it headless.

Posting to the PR

aster review --pr 123 --comment       # post findings as inline PR comments

--comment implies --pr. Run it only when you intend to publish; the plain run is read-only.

Scoping and thresholds

aster review -i "src/**/*.rs" -x "**/generated/**" --min-confidence 0.7

-i/--include overrides include from aster.yaml; -x/--exclude adds to it. Both repeatable.
--min-confidence <0.0-1.0> drops weak findings; falls back to aster.yaml.
--no-index skips the symbol index for speed, at the cost of weaker verification. Prefer keeping the index in CI.
--repo-root <DIR> points evidence retrieval at a checkout other than the cwd.

Minimal GitHub Actions shape

yaml

- run: aster review --pr ${{ github.event.pull_request.number }} --comment --json > findings.json
  env:
    GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    ASTER_API_KEY: ${{ secrets.ASTER_API_KEY }}

The API key comes from ASTER_API_KEY (never from aster.yaml). An aster.yaml committed to the repo supplies models, analyzers, and filters; aster init -y writes a default one.

Files

Just SKILL.md in skills/aster-review-ci of Zfinix/aster.

Open the folder on GitHubat commit f77a5b4

Compare with similar skills

Aster Review CI next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Aster Review CI compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Aster Review CI this skillZfinix/aster	118	—	~640	Automated safety check: Pass	Apache-2.0	2 days ago
Renovate Actions PR Reviewbacknotprop/plannotator	9.3k	—	~640	Automated safety check: Pass	Apache-2.0	today
Code ReviewAzure/sap-automation	146	—	~7k	Automated safety check: Pass	MIT	2 days ago
ReviewdogAgentSecOps/SecOpsAgentKit	220	1 repos	~3k	Automated safety check: Pass	Custom licence	5 mo ago
Code Reviewoaslananka/kicad-mcp-pro	122	—	~3.9k	Automated safety check: Pass	MIT	today
GitHub Copilot PR Finishergithub/gh-aw	5.4k	—	~3.9k	Automated safety check: Warn	MIT	today

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Questions about Aster Review CI

What does Aster Review CI do?

Run aster code reviews non-interactively in CI, GitHub Actions, or from another agent. Aster Review CI is an agent skill from Zfinix/aster. Run aster code reviews non-interactively in CI, GitHub Actions, or from another agent.

When should I use Aster Review CI?

Aster Review CI fits situations like: wiring aster into a pipeline; posting PR comments; parsing review output programmatically.

How do I install Aster Review CI in Claude Code?

Run `npx skills add Zfinix/aster --skill aster-review-ci -a claude-code`. Or copy the skill folder (skills/aster-review-ci in Zfinix/aster) into .claude/skills/aster-review-ci in your project. Claude Code loads it when a task matches its description.

How do I install Aster Review CI in Codex?

Run `npx skills add Zfinix/aster --skill aster-review-ci -a codex`. Or copy the skill folder (skills/aster-review-ci in Zfinix/aster) into .agents/skills/aster-review-ci in your project. Codex loads it when a task matches its description.

Can I use Aster Review CI in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Zfinix/aster --skill aster-review-ci -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/aster-review-ci, .gemini/skills/aster-review-ci, .github/skills/aster-review-ci and .opencode/skills/aster-review-ci in your project.

What does Aster Review CI need to run?

Going by SKILL.md and its folder, Aster Review CI needs the command-line tools its instructions call (git) and credentials named GITHUB_TOKEN and ASTER_API_KEY. Our summary lists: A credential in GITHUB_TOKEN; A credential in ASTER_API_KEY.

Does Aster Review CI access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Aster Review CI safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Aster Review CI use?

Aster Review CI is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Aster Review CI use?

About 640 tokens (SKILL.md is roughly 2.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Aster Review CI?

Skills that share tags, products or a category with Aster Review CI: Renovate Actions PR Review (backnotprop/plannotator, 9.3k stars), Code Review (Azure/sap-automation, 146 stars), Reviewdog (AgentSecOps/SecOpsAgentKit, 220 stars) and Code Review (oaslananka/kicad-mcp-pro, 122 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Aster Review CI?

Zfinix (a GitHub user) maintains it in Zfinix/aster, which has 118 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 9, 2026.

Source: Zfinix/aster on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Aster Review CI

Install Aster Review CI

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Aster review in CI and automation

Picking the diff

Machine-readable output

Posting to the PR

Scoping and thresholds

Minimal GitHub Actions shape

Files

Compare with similar skills

Similar skills

Renovate Actions PR Review

Code Review

Reviewdog

Code Review

GitHub Copilot PR Finisher

PR Babysitter

More from Zfinix/aster

Artifact Design

Aster Chat Sessions

Aster CLI

Aster Config

Aster Fix Workflow

Aster Planning

Questions about Aster Review CI

Install Aster Review CI

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Aster review in CI and automation

Picking the diff

Machine-readable output

Posting to the PR

Scoping and thresholds

Minimal GitHub Actions shape

Files

Compare with similar skills

Similar skills

More from Zfinix/aster

Related

Questions about Aster Review CI