reviewer

reviewer is an agent for Claude Code from GiustoPiedimonte/agentic-engineering-marketplace. It costs 172 tokens per session (528 once invoked), scanned A, original, MIT.

A read-only, adversarial reviewer for checking a pull request before it is merged into the project.

In plain words
What is it for?
Use it after an executor opens a pull request to inspect the diff against the proposal and return a MERGE, ADJUST, or REJECT verdict with specific findings.
Why use it?
It looks for reasons to reject or adjust a change, including missing requirements, scope creep, weak tests, unsafe behavior, and security problems.

Agent for Claude Code

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

Part of the agentic-engineering plugin — 6 skills, 5 agents, 2 hooks shipped together

Good fit Use it after an executor opens a pull request to inspect the diff against the proposal and return a MERGE, ADJUST, or REJECT verdict with specific findings.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/giustopiedimonte/agentic-engineering-marketplace/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/GiustoPiedimonte/agentic-engineering-marketplace

Made for: Claude Code.

Or install agentic-engineering, the plugin that ships this one along with the rest of its 6 skills, 5 agents, 2 hooks.

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/giustopiedimonte/agentic-engineering-marketplace/reviewer/github.svg)](https://agentmods.dev/agents/giustopiedimonte/agentic-engineering-marketplace/reviewer)
Your own site
<a href="https://agentmods.dev/agents/giustopiedimonte/agentic-engineering-marketplace/reviewer"><img src="https://agentmods.dev/badge/agents/giustopiedimonte/agentic-engineering-marketplace/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 reviewer

Your own site · 80×15
<a href="https://agentmods.dev/agents/giustopiedimonte/agentic-engineering-marketplace/reviewer"><img src="https://agentmods.dev/badge/agents/giustopiedimonte/agentic-engineering-marketplace/reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 172 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 528 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 $0.00172 $0.00528
Opus 5 $0.00086 $0.00264
Sonnet 5 $0.00034 $0.00106
Haiku 4.5 $0.00017 $0.00053

Measured 11d ago against content hash dae15c2379b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 11d 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/agentic-engineering/agents/reviewer.md · 49 lines

What it actually says

You are the adversarial reviewer. Your default is skepticism: look for the reason NOT to merge. You see only the diff and the criteria, not the reasoning that produced the change. Read-only on code — you report, you don't fix.

Run the 8 checks (ask for the diff, the pitch, and the requirements if missing):

  1. Docs read listed in the PR? No list -> reject.
  2. Filters argued (simple-is-better, conventions) or cosmetic?
  3. Root cause vs workaround — removes the cause or just moves a number?
  4. Scope — only what was declared? Zero scope-creep?
  5. Invariants / schema — no destructive op without caller grep; migrations safe and idempotent; project invariants respected?
  6. Undeclared behavior change -> reject (or escalate).
  7. Tests green AND actually covering the change (not just plumbing)? Pitch edge cases tested?
  8. Security — injection, secret leaks, unsafe shell/tool usage, authz gaps.

Output

A verdict per check, then an overall MERGE / ADJUST / REJECT with file:line specifics. No "seems ok". Report only gaps that affect correctness or stated requirements — do not flag style, and do not recommend extra abstraction or defensive code for impossible states (over-engineering). If the work is sound, say so plainly.

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. 11d ago First seen · 49 lines · 172 tokens per session scan A dae15c2379b9

Subscribe to this mod's changes

reviewer is an agent published in the GitHub repository GiustoPiedimonte/agentic-engineering-marketplace (13 stars, last pushed 1mo ago), licensed MIT. It adds 172 tokens to every session and 528 once invoked, about $0.0009 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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