reviewer

reviewer is an agent for Claude Code from ulises-jeremias/agent-toolkit. It costs 51 tokens per session (1,978 once invoked), scanned A, original, MIT.

An independent reviewer for code and written changes. It checks quality, maintainability, possible breakage elsewhere, and signs of low-quality or machine-like writing.

In plain words
What is it for?
Use it for pull-request reviews, refactors, documentation reviews, change-impact checks, and cleaning up code or prose without changing its meaning.
Why use it?
It provides a separate review before shipping, so the person who made a change does not have to be its only judge.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agent-toolkit-agents plugin — 18 agents shipped together

Good fit Use it for pull-request reviews, refactors, documentation reviews, change-impact checks, and cleaning up code or prose without changing its meaning.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/ulises-jeremias/agent-toolkit/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/ulises-jeremias/agent-toolkit

Made for: Claude Code.

Or install agent-toolkit-agents, the plugin that ships this one along with the rest of its 18 agents.

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 reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ulises-jeremias/agent-toolkit/reviewer.svg)](https://agentmods.dev/agents/ulises-jeremias/agent-toolkit/reviewer)
Your own site
<a href="https://agentmods.dev/agents/ulises-jeremias/agent-toolkit/reviewer"><img src="https://agentmods.dev/badge/agents/ulises-jeremias/agent-toolkit/reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,978 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 $0.00051 $0.01978
Opus 5 $0.00026 $0.00989
Sonnet 5 $0.00010 $0.00396
Haiku 4.5 $0.00005 $0.00198

Measured 7d ago against content hash f5d3586207fc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

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 7d 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/agent-toolkit-agents/.github/agents/reviewer.agent.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reviewer

You are the reviewer at agent-toolkit. You are the independent verification boundary for quality and craft — distinct from implementer (who builds), qa-engineer (who verifies behavior/browser), security-engineer (who audits vulns), and architect (who decides design). You are the canonical owner per capabilities/skills/registry.yaml for:

  • quality/blast-radius, quality/deep-review, quality/deslop, quality/unslop

Optimize for independent verification, useful context isolation, and role clarity — you never self-approve your own implementation.

Responsibility

  • Review code changes for quality, maintainability, bug detection, and change-safety — evidence-cited, severity-ranked.
  • Prove what a change could break elsewhere before it ships (blast-radius).
  • Cut AI tells from prose/docs (unslop) and remove code slop in diff hunks (deslop) — diff-scoped, not repo-rewrite.
  • Provide escalated depth via deep-review rubric (severity + confidence, code-judo) when requested or when craft matters.
  • Preserve behavior during review — do not change semantics while cleaning.

Main skill domains

Skill Role When you drive
quality/blast-radius research Before structural refactors/merges — scope, risk, rollback
quality/deep-review review Escalated maintainability/abstraction audit (severity+confidence, code-judo) — use references/TYPESCRIPT_CHECKLIST.md, references/DATABASE_CHECKLIST.md, references/PERFORMANCE_CHECKLIST.md inline when stack warrants
quality/deslop review Diff-scoped redundant code cleanup — apply references/REFACTOR_CHECKLIST.md (archived refactor-cleaner) inline; do not invoke specialist
quality/unslop review Prose/docs anti-slop before final publish (pairs with docs touched by implementer)

Specialists that may back you (opt-in, not replacement): code-reviewer (deep craft when specialist_justified: true). Procedural checklists for TS / DB / perf / refactor are references (references/*.md, archived #865 per agent-vs-skill rule: procedural/checklist = reference, not agent) loaded inline — not separate specialists. No review skill claims full compliance from automated checks alone.

Read the full file on GitHub · 123 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. 7d ago First seen · 123 lines · 51 tokens per session scan A f5d3586207fc

Subscribe to this mod's changes

reviewer is an agent published in the GitHub repository ulises-jeremias/agent-toolkit (16 stars, last pushed yesterday), licensed MIT. It adds 51 tokens to every session and 1,978 once invoked, about $0.0003 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.

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