Agent skill

Code Reviewer

by tctinh in tctinh/agent-hive

A skill your agent uses when reviewing implementation changes against an approved plan or task (especially before merging or between Hive tasks) to catch missing requirements, YAGNI, dead code, and…

Custom licenceAuto-check passedDevelopment

Install Code Reviewer

skills CLI
$ npx skills add tctinh/agent-hive --skill code-reviewer -a claude-code

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

GitHub CLI
$ gh skill install tctinh/agent-hive code-reviewer --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/tctinh/agent-hive.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/code-reviewer .claude/skills/code-reviewer && 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/

Facts

Skill name
code-reviewer
GitHub stars
159
Token cost
~1.8k tokens
SKILL.md length
951 words
Files
1
Skills in repo
7
Repo updated
First seen
Licence
Custom licence

At a glance

A skill your agent uses when reviewing implementation changes against an approved plan or task (especially before merging or between Hive tasks) to catch missing requirements, YAGNI, dead code, and…

  • Works in 7 steps: Identify Scope → Plan/Task Adherence (Non-Negotiable) → Correctness Layer → …
  • Reviewing implementation changes against an approved plan
  • SKILL.md covers Overview, Iron Laws, What Inputs You Need and Review Process (In Order), plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Code Reviewer is an agent skill from tctinh/agent-hive. Use when reviewing implementation changes against an approved plan or task (especially before merging or between Hive tasks) to catch missing requirements, YAGNI, dead code, and risky patterns

Its SKILL.md is about 1.8k 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 Code review.

When your agent uses it

  • Reviewing implementation changes against an approved plan
  • Task (especially before merging
  • Between Hive tasks) to catch missing requirements

Example prompts

  • “/code-reviewer”

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Identify Scope
  2. Plan/Task Adherence (Non-Negotiable)
  3. Correctness Layer
  4. Simplicity / YAGNI Layer
  5. Risk Layer (Security / Performance / Maintainability)
  6. Make One Primary Recommendation
  7. Signal the Investment

What it can do on your machine

Read from SKILL.md and the folder at commit b3f11c0. 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

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Code Reviewer loads about 1.8k tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 951 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~52
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 951 words (~1,820 tokens).

“This skill teaches a reviewer to evaluate implementation changes for:”

— opening of SKILL.md by tctinh, Custom licence
name
code-reviewer

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .github/skills/code-reviewer of tctinh/agent-hive.

Open the folder on GitHubat commit b3f11c0

Compare with similar skills

Code Reviewer 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.

Code Reviewer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Code Reviewer this skilltctinh/agent-hive159—~1.8kAutomated safety check: PassCustom licence
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT
Backend Code Reviewlangflow-ai/langflow156k—~3.5kAutomated safety check: NotesMIT
Understand Diff AnalysisEgonex-AI/Understand-Anything86k1 repos~1.4kAutomated safety check: PassMIT
Mole Bug Patternstw93/Mole70k—~2kAutomated safety check: PassGPL-3.0

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Categories

Questions about Code Reviewer

What does Code Reviewer do?

A skill your agent uses when reviewing implementation changes against an approved plan or task (especially before merging or between Hive tasks) to catch missing requirements, YAGNI, dead code, and…. Code Reviewer is an agent skill from tctinh/agent-hive.

When should I use Code Reviewer?

Code Reviewer fits situations like: reviewing implementation changes against an approved plan; task (especially before merging; between Hive tasks) to catch missing requirements.

How do I install Code Reviewer in Claude Code?

Run `npx skills add tctinh/agent-hive --skill code-reviewer -a claude-code`. Or copy the skill folder (.github/skills/code-reviewer in tctinh/agent-hive) into .claude/skills/code-reviewer in your project. Claude Code loads it when a task matches its description.

How do I install Code Reviewer in Codex?

Run `npx skills add tctinh/agent-hive --skill code-reviewer -a codex`. Or copy the skill folder (.github/skills/code-reviewer in tctinh/agent-hive) into .agents/skills/code-reviewer in your project. Codex loads it when a task matches its description.

Can I use Code Reviewer 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 tctinh/agent-hive --skill code-reviewer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/code-reviewer, .gemini/skills/code-reviewer, .github/skills/code-reviewer and .opencode/skills/code-reviewer in your project.

What does Code Reviewer need to run?

SKILL.md names no scripts, command-line tools or credentials: Code Reviewer is instructions for the agent only.

Does Code Reviewer access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Code Reviewer 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 Code Reviewer use?

Code Reviewer has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Code Reviewer use?

About 1.8k tokens (SKILL.md is roughly 7.3k 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 Code Reviewer?

Skills that share tags, products or a category with Code Reviewer: PR Babysitter (openinterpreter/openinterpreter, 69k stars), Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars), Backend Code Review (langflow-ai/langflow, 156k stars) and Understand Diff Analysis (Egonex-AI/Understand-Anything, 86k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Reviewer?

tctinh (a GitHub user) maintains it in tctinh/agent-hive, which has 159 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on October 4, 2026.

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