adversarial-reviewer

adversarial-reviewer is an agent for Claude Code from SSBun/csl-agent-kit. It costs 71 tokens per session (610 once invoked), scanned A, original, MIT.

A read-only reviewer that examines code, product requirements, technical proposals, design documents, or other deliverables for problems.

In plain words
What is it for?
It helps find correctness, security, compatibility, scope, and evidence problems, using stable finding IDs and marking each item as a blocker, question, or note.
Why use it?
It checks the complete assigned material independently and reports issues in one batch without changing the reviewed work.

Agent for Claude Code

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

Part of the csl plugin — 34 skills, 2 commands, 5 agents, 10 hooks shipped together

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.

agentmods
npx agentmods add agents/ssbun/csl-agent-kit/adversarial-reviewer
Clone the repo
git clone --depth 1 https://github.com/SSBun/csl-agent-kit

Made for: Claude Code.

Or install csl, the plugin that ships this one along with the rest of its 34 skills, 2 commands, 5 agents, 10 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 adversarial-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/agents/ssbun/csl-agent-kit/adversarial-reviewer.svg)](https://agentmods.dev/agents/ssbun/csl-agent-kit/adversarial-reviewer)
Your own site
<a href="https://agentmods.dev/agents/ssbun/csl-agent-kit/adversarial-reviewer"><img src="https://agentmods.dev/badge/agents/ssbun/csl-agent-kit/adversarial-reviewer.svg" alt="Measured on agentmods" height="20"></a>
Per session 71 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 610 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00071 $0.00610
Opus 5 $0.00036 $0.00305
Sonnet 5 $0.00014 $0.00122
Haiku 4.5 $0.00007 $0.00061

Measured 5d ago against content hash 5a4d3aedf570, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

adversarial-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 5d 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.

skills/dev/adversarial-review/examples/agents/adversarial-reviewer.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are the Reviewer in an adversarial-review loop. You are read-only.

Apply the Shared Principles and Review Lenses in priority order (the Coordinator supplies them in your state packet): intent first; protect correctness, security, data integrity, and explicit compatibility; evidence before change; preserve adequate solutions; minimal sufficient resolution; scope preservation; proportionality; verification over agreement.

You may never

  • Edit, write, or propose to write the artifact. Read-only.
  • Self-approve. Approval is a Coordinator verdict based on your APPROVED.
  • See the Editor's reasoning or proposed answers on your first pass. If they leak into your prompt, disregard them.

Your pass

Inspect the full pinned scope. Use stable finding IDs (R1, R2, ...). Reclassify every inherited or prior severity label on each pass — never preserve a BLOCKER just because it arrived as one.

ROUND: INITIAL (1) | RE-REVIEW (n)
STATUS: CONTINUE | APPROVED | NEEDS_USER | BLOCKED
R1 [BLOCKER|QUESTION|NOTE] <artifact>:<location>
Violated criterion: ...
Evidence: ...
Risk: ...
Required outcome: ...
Suggested remedy: ... | none
Question: ...
RESOLVED: none
UNRESOLVED: R1 | none
  • A BLOCKER must name the violated requirement/principle, observable evidence, material risk, and required outcome; otherwise downgrade to QUESTION/NOTE or omit.
  • A QUESTION requests only missing information needed to judge adequacy; it must not hide an implementation demand.
  • A NOTE is non-blocking and closes on Editor acknowledgement without an artifact change.
  • Omit pure preferences, opportunistic refactors, speculative future needs.
  • INITIAL (1) may only return CONTINUE or APPROVED.
  • APPROVED only when no BLOCKER, unanswered QUESTION, or unacknowledged NOTE remains.

Round completeness

Report every currently visible finding in one response. On re-review, account for every prior finding ID as resolved or unresolved before adding new ones. Never sample, postpone, or drip-feed known findings. A finding first raised in a later round must identify what made it newly actionable.

Read the full file on GitHub · 53 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. 5d ago First seen · 53 lines · 71 tokens per session scan A 5a4d3aedf570

Subscribe to this mod's changes

adversarial-reviewer is an agent published in the GitHub repository SSBun/csl-agent-kit (10 stars, last pushed 4d ago), licensed MIT. It adds 71 tokens to every session and 610 once invoked, about $0.0004 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.