argentum-engine: Skill for Claude Code

.agents/skills/review-changes/SKILL.md

review-changes is a skill for Claude Code from wingedsheep/argentum-engine. It costs 124 tokens per session (6,547 once invoked), scanned A, original, no licence file.

A code review guide for pending Argentum Engine changes, such as a branch, pull request, or working tree. It checks correctness, tests, architecture, and whether changes reuse the engine's existing building blocks.

In plain words
What is it for?
Use it to review pull requests or local changes to the engine, SDK, cards, or client.
Why use it?
It helps find one-off implementations, missing tests, incorrect use of projections, and changes that do not fit the project's design before they are merged.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is wingedsheep/argentum-engine's own configuration. It tells Claude Code how to work on argentum-engine itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything argentum-engine configures →

Reuse

Borrowing it

Nothing to install: this file belongs to wingedsheep/argentum-engine. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/wingedsheep/argentum-engine/main/.agents/skills/review-changes/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/wingedsheep/argentum-engine

Made for: Claude Code.

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 review-changes

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/wingedsheep/argentum-engine/review-changes"><img src="https://agentmods.dev/badge/skills/wingedsheep/argentum-engine/review-changes.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 124 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,547 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00124 $0.06547
Opus 5.5 $0.00050 $0.02619
Sonnet 5.5 $0.00025 $0.01309
Haiku 4.5 $0.00012 $0.00655

Measured 16d ago against content hash 74b976d82d3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

review-changes scanned grade A with 1 finding 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 16d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Rules once (grab the `.txt` link from <https://magic.wizards.com/en/rules>, `curl -o`
.agents/skills/review-changes/SKILL.md · 415 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 16d ago Changed · +14 lines 74b976d82d3a
  2. 21d ago Changed · +5 lines 590fc49cfe63
  3. 29d ago Changed · +159 lines · +37 tokens per session 0db069e5554f
  4. 1mo ago Changed · +9 lines aea51661fbdc
  5. 1mo ago Changed · +12 lines 69e93600931e
  6. 2mo ago First seen · 216 lines · 87 tokens per session scan A d0ed3e15a4d2

Subscribe to this mod's changes

review-changes is a skill published in the GitHub repository wingedsheep/argentum-engine (81 stars, last pushed today), with no licence file. It adds 124 tokens to every session and 6,547 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

shepherd

Use when asked to shepherd, babysit, monitor, or poll open pull requests or merge requests, including triaging review feedback, CI failures, and routine follow-up.

chrisbanes/skills · 37 tokens

kotlin-concurrency-and-flow

Use when writing or reviewing Kotlin coroutine scope ownership, raw Thread or Executor work, init launches, non-suspending launch APIs, runBlocking, cancellation, StateFlow, SharedFlow, Channel, stateIn, SharingStarted, state updates, or one-shot events.

chrisbanes/skills · 60 tokens

kotlin-api-design

Use when designing or reviewing Kotlin function ownership, member or extension functions, factories, single-field domain types, value classes, data classes, Kotlin Multiplatform expect/actual declarations, or platform service boundaries.

chrisbanes/skills · 46 tokens

plugin-code-review-orchestrated

Orchestrates a code review of the spring-plugin repository through scope/context passes, routing, domain reviewer subskills, and per-artifact validation. Use when asked to review a PR, diff, commit, branch, module, or file set, to run a full orchestrated review, or to produce a validated review report.

explyt/spring-plugin · 72 tokens

Automated Refactoring with PMAT

Provides automated refactoring suggestions and complexity reduction strategies using PMAT (Pragmatic AI Labs MCP Agent Toolkit). Use this skill when: User requests code refactoring, optimization, or improvement Complexity analysis reveals high-complexity functions (cyclomatic > 10) Code review identifies…

paiml/paiml-mcp-agent-toolkit · 120 tokens

review-async-lifecycle

Normative reviewer for EDT safety, coroutines, cancellation, read/write actions, disposal, listeners and async lifecycle in the explyt spring-plugin. Use during orchestrated code review when the diff touches threading, background tasks, read or write actions, listeners, MessageBus, Disposable ownership or progress…

explyt/spring-plugin · 66 tokens