jk-review

jk-review is a skill for Claude Code, Codex from jkomyno/.dotfiles. It costs 39 tokens per session (1,612 once invoked), scanned A, original, MIT.

A read-only review skill for code changes, pull requests, plans, and technical specifications. It looks for correctness problems, design issues, missing tests, scope growth, and regressions.

In plain words
What is it for?
Use it before shipping code or starting implementation to review a diff, GitHub pull request, plan, or specification.
Why use it?
A second review can reveal assumptions and risks the author missed, without changing the code. It focuses on actionable problems rather than formatting or personal preferences.

Skill for Claude CodeCodex

Written for Claude Code and Codex: argument-hint in frontmatter, but also agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it before shipping code or starting implementation to review a diff, GitHub pull request, plan, or specification.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jkomyno/.dotfiles/jk-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 jkomyno/.dotfiles --skill jk-review
Clone the repo
git clone --depth 1 https://github.com/jkomyno/.dotfiles

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 jk-review

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/jkomyno/.dotfiles/jk-review"><img src="https://agentmods.dev/badge/skills/jkomyno/.dotfiles/jk-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,612 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 $0.00039 $0.01612
Opus 5 $0.00019 $0.00806
Sonnet 5 $0.00008 $0.00322
Haiku 4.5 $0.00004 $0.00161

Measured 11d ago against content hash e39eb69e2676, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

jk-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 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.

target/home/.agents/skills/jk-review/SKILL.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

jk-review

A review is a second pair of eyes, not a checklist. The job is to surface things the author can't see because they wrote it: load-bearing assumptions, scope creep, missing tests, drift from the repo's conventions, and silent regressions.

This skill produces a structured report. It does not auto-fix. The author decides what to address and when.

Scope

Review targets:

  • Diff. Staged changes, branch vs main, or a specific commit range.
  • Pull request. A GitHub PR (use gh pr view and gh pr diff).
  • Plan. A PLAN.md or similar before execution starts.
  • Spec. A SPEC.md or similar before planning starts.

Not in scope:

  • Style nitpicks the linter already catches. If the project has Biome, eslint, prettier, or rubocop wired up, trust them.
  • Personal-preference rewrites. "I would have done it differently" is not a finding.

Protocol

  1. Identify the target. Diff, PR, plan, or spec. If ambiguous, ask.
  2. Read it in full once before forming opinions. Skim invites the kind of comment that misses context two paragraphs down.
  3. Read the surrounding code (for diffs and PRs). Open every file the diff touches and read the function before and after the changed lines. Many findings come from context the diff doesn't show.
  4. Build a findings list. Each finding gets a severity (P1/P2/P3), a one-line summary, a quoted location, and a concrete suggested action.
  5. De-duplicate. If three findings boil down to the same issue, merge them.
  6. Write the report. Markdown, in the structure below.

Severity definitions

Calibrate honestly. Severity inflation makes the whole report less useful.

P1 (blocks merge). Security vulnerability, data corruption risk, missing test for new behavior, broken backwards-compatibility on a stable API, factually wrong claim in a plan or spec, or anything that will cause an incident.

P2 (should fix before merge, but mergeable with author sign-off). Architectural drift, performance regression, naming inconsistencies that will calcify, missing error handling at a real boundary, ambiguity in a plan that would cost a re-spec cycle.

Read the full file on GitHub · 120 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 120 lines · 39 tokens per session scan A e39eb69e2676

Subscribe to this mod's changes

jk-review is a skill published in the GitHub repository jkomyno/.dotfiles (5 stars, last pushed 7d ago), licensed MIT. It adds 39 tokens to every session and 1,612 once invoked, about $0.0002 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.