deep-review

deep-review is a skill for Claude Code, Codex from fabioc-aloha/Alex_Skill_Mall. It costs 54 tokens per session (1,322 once invoked), scanned A, original, MIT.

An adversarial code-review method that examines a change from three viewpoints: defending its design, trying to break it, and checking its architectural direction.

In plain words
What is it for?
Use it for security-sensitive work, architectural changes, large refactors, and high-stakes pull requests.
Why use it?
Different reviewers look for different risks, which helps expose bugs, edge cases, and structural problems in important changes.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for security-sensitive work, architectural changes, large refactors, and high-stakes pull requests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fabioc-aloha/alex_skill_mall/deep-review
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.

Any agent
npx skills add fabioc-aloha/Alex_Skill_Mall --skill deep-review
Clone the repo
git clone --depth 1 https://github.com/fabioc-aloha/Alex_Skill_Mall

Made for: Claude Code, Codex.

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 deep-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/deep-review/github.svg)](https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/deep-review)
Your own site
<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/deep-review"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/deep-review/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 deep-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/deep-review"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/deep-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,322 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 $0.00054 $0.01322
Opus 5 $0.00027 $0.00661
Sonnet 5 $0.00011 $0.00264
Haiku 4.5 $0.00005 $0.00132

Measured 8d ago against content hash e7149ab17732, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

deep-review 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/code-quality/deep-review/skills/deep-review/SKILL.md · 161 lines

How it starts

The opening of the file, as written. The whole thing — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Deep Review

Perform thorough code review using three perspectives with opposing mindsets. Their disagreement surfaces issues; their agreement signals confidence.

When to Use

  • Architectural changes, multi-file refactors, or security-sensitive code
  • PRs that are too important for single-pass review
  • When you suspect confirmation bias in a standard review
  • High-stakes merges where the cost of a missed issue is high

When NOT to Use

  • Routine single-file edits (use standard code-review skill)
  • Documentation-only PRs
  • Formatting/linting changes

The Three Perspectives

Agent Mindset Question Owns
Advocate "Why is this correct?" Trust boundaries, design rationale, false-positive defense Correctness defense
Skeptic "How can I break this?" Bugs, edge cases, code smells that indicate bugs Correctness attack
Architect "Is this the right direction?" System impact, scope, structural smells, tech debt Direction

Workflow

Phase 1: Gather Context

  1. Identify the changes — PR diff, local changes, or specific files
  2. Collect context — related files, tests, recent history of changed modules
  3. Note observations — anything unusual before analysis begins

Phase 2: Parallel Analysis

Run all three perspectives independently. Each sees the same context but asks different questions.

Advocate Analysis
  • What problem does this solve?
  • What design decisions are intentional (not accidental)?
  • Where are the trust boundaries correctly placed?
  • What would break if we rejected this PR?
  • Defend against false-positive concerns raised by Skeptic
Skeptic Analysis
  • What inputs could break this? (null, empty, overflow, concurrent, malicious)
  • What error paths are unhandled?
  • What assumptions are undocumented?
  • What would a fuzzer find?
  • What code smells indicate deeper bugs? (naming lies, magic numbers, commented-out code)
  • What works in tests but would fail in production?

Read the full file on GitHub · 161 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 · 161 lines · 54 tokens per session scan A e7149ab17732

Subscribe to this mod's changes

deep-review is a skill published in the GitHub repository fabioc-aloha/Alex_Skill_Mall (4 stars, last pushed yesterday), licensed MIT. It adds 54 tokens to every session and 1,322 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 2026-09-03.