focused-code-review

focused-code-review is a skill for Claude Code, Codex from gabriele-mastrapasqua/codex-lean-team. It costs 29 tokens per session (142 once invoked), scanned A, original, MIT.

A focused code-review procedure for checking a substantial software change and reporting only actionable problems.

In plain words
What is it for?
Reviewing a code diff for correctness, edge cases, asynchronous behavior, data safety, public interfaces, and test coverage.
Why use it?
It helps catch bugs, security issues, broken error handling, compatibility problems, and missing regression tests before release.

Skill for Claude CodeCodex

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

Good fit Reviewing a code diff for correctness, edge cases, asynchronous behavior, data safety, public interfaces, and test coverage.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gabriele-mastrapasqua/codex-lean-team/focused-code-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 gabriele-mastrapasqua/codex-lean-team --skill focused-code-review
Clone the repo
git clone --depth 1 https://github.com/gabriele-mastrapasqua/codex-lean-team

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 focused-code-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/gabriele-mastrapasqua/codex-lean-team/focused-code-review/github.svg)](https://agentmods.dev/skills/gabriele-mastrapasqua/codex-lean-team/focused-code-review)
Your own site
<a href="https://agentmods.dev/skills/gabriele-mastrapasqua/codex-lean-team/focused-code-review"><img src="https://agentmods.dev/badge/skills/gabriele-mastrapasqua/codex-lean-team/focused-code-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 focused-code-review

Your own site · 80×15
<a href="https://agentmods.dev/skills/gabriele-mastrapasqua/codex-lean-team/focused-code-review"><img src="https://agentmods.dev/badge/skills/gabriele-mastrapasqua/codex-lean-team/focused-code-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 142 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 $0.00029 $0.00142
Opus 5 $0.00015 $0.00071
Sonnet 5 $0.00006 $0.00028
Haiku 4.5 $0.00003 $0.00014

Measured 8d ago against content hash c9dcffaf2969, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

focused-code-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.

skills/focused-code-review/SKILL.md · 18 lines

What it actually says

Review the actual diff plus enough surrounding code to validate behavior.

Check:

  1. Functional correctness and edge cases.
  2. Error handling and cleanup.
  3. Concurrency, async, ownership, and lifecycle.
  4. Security and data integrity.
  5. Public contracts and backward compatibility.
  6. Tests: whether they would fail before the fix and cover realistic regressions.
  7. Language-specific hazards.

Return only actionable findings ordered by severity, followed by residual risks and validation gaps. Avoid style-only comments unless they hide correctness or maintenance risk.

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 · 18 lines · 29 tokens per session scan A c9dcffaf2969

Subscribe to this mod's changes

focused-code-review is a skill published in the GitHub repository gabriele-mastrapasqua/codex-lean-team (3 stars, last pushed 1mo ago), licensed MIT. It adds 29 tokens to every session and 142 once invoked, about $0.0001 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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