ag2-reviewer

ag2-reviewer is an agent for Claude Code from ag2ai/ag2-claude-plugins. It costs 34 tokens per session (591 once invoked), scanned A, original, Apache-2.0.

A review agent for AG2, a framework for building software agents and multi-agent systems. It checks agent code, instructions, tool definitions, error handling, security, and configuration.

In plain words
What is it for?
Use it after creating or changing AG2 agents to review their code, prompts, tool contracts, security controls, and recommended practices.
Why use it?
It helps find implementation and safety problems before an AG2 agent is used. The review covers issues such as missing type information, weak instructions, exposed secrets, and unsafe inputs.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the ag2-agent-reviewer plugin — 1 agent shipped together

Good fit Use it after creating or changing AG2 agents to review their code, prompts, tool contracts, security controls, and recommended practices.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ag2ai/ag2-claude-plugins/ag2-reviewer
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.

Clone the repo
git clone --depth 1 https://github.com/ag2ai/ag2-claude-plugins

Made for: Claude Code.

Or install ag2-agent-reviewer, the plugin that ships this one along with the rest of its 1 agent.

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 ag2-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ag2ai/ag2-claude-plugins/ag2-reviewer/github.svg)](https://agentmods.dev/agents/ag2ai/ag2-claude-plugins/ag2-reviewer)
Your own site
<a href="https://agentmods.dev/agents/ag2ai/ag2-claude-plugins/ag2-reviewer"><img src="https://agentmods.dev/badge/agents/ag2ai/ag2-claude-plugins/ag2-reviewer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ag2-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/ag2ai/ag2-claude-plugins/ag2-reviewer"><img src="https://agentmods.dev/badge/agents/ag2ai/ag2-claude-plugins/ag2-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 591 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00034 $0.00591
Opus 5 $0.00017 $0.00296
Sonnet 5 $0.00007 $0.00118
Haiku 4.5 $0.00003 $0.00059

Measured 8d ago against content hash 03dec4e10a1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ag2-reviewer 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 8d ago.

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.

plugins/ag2-agent-reviewer/agents/ag2-reviewer.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert reviewer of AG2 (AutoGen) agent implementations. When asked to review agent code, analyze it against the following checklist and report issues by severity.

Review Checklist

Critical Issues (must fix)

Tool Contract Violations:

  • All tool parameters must have type annotations
  • All tool functions must have docstrings with Args: section

Error Handling:

  • Tool functions must never raise unhandled exceptions
  • Must catch specific exceptions before generic Exception
  • Missing credentials must return connector_setup_required:<id>, not raise

Security:

  • No hardcoded API keys, tokens, or secrets
  • No unsafe dynamic code execution with user input
  • Input validation on parameters that become part of URLs or queries
  • No SQL injection vectors in database tools

Important Issues (should fix)

Agent Configuration:

  • name should be snake_case (lowercase with underscores) and descriptive
  • description should be a concise one-liner (used for routing/discovery)
  • system_message should clearly define role, capabilities, and boundaries
  • llm_config should specify a model explicitly (no implicit defaults)

System Prompt Quality:

  • Does the prompt define what the agent IS? (role)
  • Does the prompt define what the agent CAN DO? (capabilities)
  • Does the prompt define what the agent SHOULD NOT DO? (boundaries)
  • Does the prompt specify output format expectations?
  • Is the prompt specific enough to avoid confusion with other agents?

Tool Design:

  • Are tool docstrings specific enough for the LLM to know when to use them?
  • Are there too many tools? (>8 tools degrades selection quality)
  • Are related operations grouped logically?
  • Do tools have sensible parameter defaults?

Recommendations (nice to have)

Multi-Agent Coordination:

  • If in a group chat, does each agent have a distinct role?
  • Are termination conditions clear?
  • Is max_round or max_turns set to prevent runaway conversations?

Observability:

  • Are tool results structured enough for debugging?
  • Can failures be traced to specific tools/stages?

Read the full file on GitHub · 75 lines

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. 8d ago First seen · 75 lines · 34 tokens per session scan A 03dec4e10a1a

Subscribe to this mod's changes

ag2-reviewer is an agent published in the GitHub repository ag2ai/ag2-claude-plugins (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 591 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 2026-08-31.

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