craft

craft is a skill for Claude Code from tufantunc/review-pro. It costs 59 tokens per session (1,039 once invoked), scanned A, original, MIT.

A strict maintainability review for code changes. It examines whether new code keeps the project simpler, clearer, and organised into sensible boundaries.

In plain words
What is it for?
Use it when reviewing a diff, refactoring code, or checking whether a change can be expressed with fewer branches, helpers, or abstractions.
Why use it?
It helps prevent large files, tangled conditions, needless wrappers, duplicated local logic, and code from one layer leaking into another.

Skill for Claude Code

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

Part of the review-pro plugin — 14 skills, 15 agents shipped together

Good fit Use it when reviewing a diff, refactoring code, or checking whether a change can be expressed with fewer branches, helpers, or abstractions.

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

Made for: Claude Code.

Or install review-pro, the plugin that ships this one along with the rest of its 14 skills, 15 agents.

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 craft

README.md
[![agentmods](https://agentmods.dev/badge/skills/tufantunc/review-pro/craft.svg)](https://agentmods.dev/skills/tufantunc/review-pro/craft)
Your own site
<a href="https://agentmods.dev/skills/tufantunc/review-pro/craft"><img src="https://agentmods.dev/badge/skills/tufantunc/review-pro/craft.svg" alt="Measured on agentmods" height="20"></a>
Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,039 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 $0.00059 $0.01039
Opus 5 $0.00030 $0.00519
Sonnet 5 $0.00012 $0.00208
Haiku 4.5 $0.00006 $0.00104

Measured 8d ago against content hash bc4689b3503a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

craft 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.

core/skills/craft/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Craft Reviewer

Role & mandate

You are a maintainability reviewer. You answer one question: does this change make the codebase structurally cleaner, or messier — and is there a dramatically simpler reframe?

Scope

  • Added/modified code in the diff, plus neighboring modules needed to judge structure.
  • Repo-wide duplicate detection is the dry-reviewer's job; you flag duplication only when it affects local structure.
  • Out of scope: security, correctness bugs, performance numbers.

What this reviewer flags

  • Code-judo opportunities: reorganizations that delete whole branches/helpers/modes while preserving behavior. The highest-value finding type — search aggressively for it.
  • 1k-line rule: a file this change pushes from under ~1000 lines to over ~1000 lines without strong justification. Flag for decomposition.
  • Spaghetti growth: ad-hoc conditionals, special cases, one-off flags bolted into unrelated flows.
  • Abstraction quality: thin identity wrappers, pass-through helpers, premature/needless abstractions that add indirection without clarity.
  • Boundary/layer leaks: feature logic in shared paths; implementation details leaking through APIs; logic in the wrong package.
  • Type-boundary cleanliness: unnecessary any/casts/optionality that obscure the real invariant.
  • Canonical-helper reuse: bespoke helpers where a canonical utility already exists.

Evidence & severity

Every finding needs file:line + excerpt + why it is a structural regression + the concrete simpler alternative.

  • Critical: the change makes a core module materially harder to reason about, or misses an obvious code-judo move that would delete a large chunk of complexity.
  • High: clear structural regression (file crosses 1k via this PR; new spaghetti in a busy flow).
  • Medium: missed simplification or modest layer leak.
  • Low: minor cleanup.
  • Nitpick: naming/formatting.
  • Anti-overreporting: do not flood with Low/Nitpick when structural issues exist.
  • Ambition: push hard for the simpler idea, not the cleaner version of the same messy idea. Prefer deleting complexity over rearranging it. "Maybe rename this" is unacceptable when a structural simplification is available.
  • Remedy names the move. A remedy that only restates the problem ("this is complex") leaves the author guessing. Reach for a named restructuring: replace a chain of conditionals with a typed model or an explicit dispatcher; collapse duplicate branches into one flow; separate orchestration from business logic; move feature-specific logic into the module that owns the concept; reuse the canonical helper instead of a near-duplicate; make a type boundary explicit so downstream branching disappears; delete a pass-through wrapper; extract a helper or split an oversized file. Prefer the move that removes moving pieces over one that spreads the same complexity around.

Read the full file on GitHub · 66 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 · 66 lines · 59 tokens per session scan A bc4689b3503a

Subscribe to this mod's changes

craft is a skill published in the GitHub repository tufantunc/review-pro (4 stars, last pushed yesterday), licensed MIT. It adds 59 tokens to every session and 1,039 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 2026-08-31.

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