plan-review-core

plan-review-core is a skill for Claude Code from VoidTechnology/voidtech-claude-plugins. It costs 33 tokens per session (221 once invoked), scanned A, original, Apache-2.0.

A step-by-step guide for checking a software plan or design before implementation, with attention to decisions, dependencies, constraints, and trade-offs.

In plain words
What is it for?
Use it to review a proposed plan, investigate questions that can be answered from the codebase, and resolve one open issue at a time before coding.
Why use it?
It helps uncover missing details and test important assumptions while changes are still easy to revise.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is Vendored from [mattpocock/skills](https://github.com/mattpocock/skills) · MIT © 2026 Matt Pocock · upstream 6eeb81b · 已汉化并完成 VoidTech 插件内自包含适配。LICENSE 见 ../_ven.

Part of the voidtech-core plugin — 8 skills, 1 hook shipped together

Good fit Use it to review a proposed plan, investigate questions that can be answered from the codebase, and resolve one open issue at a time before coding.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/VoidTechnology/voidtech-claude-plugins
agentmods
npx agentmods add skills/voidtechnology/voidtech-claude-plugins/plan-review-core

Made for: Claude Code.

Or install voidtech-core, the plugin that ships this one along with the rest of its 8 skills, 1 hook.

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 plan-review-core

README.md
[![agentmods](https://agentmods.dev/badge/skills/voidtechnology/voidtech-claude-plugins/plan-review-core/github.svg)](https://agentmods.dev/skills/voidtechnology/voidtech-claude-plugins/plan-review-core)
Your own site
<a href="https://agentmods.dev/skills/voidtechnology/voidtech-claude-plugins/plan-review-core"><img src="https://agentmods.dev/badge/skills/voidtechnology/voidtech-claude-plugins/plan-review-core/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 plan-review-core

Your own site · 80×15
<a href="https://agentmods.dev/skills/voidtechnology/voidtech-claude-plugins/plan-review-core"><img src="https://agentmods.dev/badge/skills/voidtechnology/voidtech-claude-plugins/plan-review-core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 221 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 $0.00033 $0.00221
Opus 5.5 $0.00013 $0.00088
Sonnet 5.5 $0.00007 $0.00044
Haiku 4.5 $0.00003 $0.00022

Measured 1mo ago against content hash 0f8a823dfcb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

plan-review-core 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 1mo 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/voidtech-core/skills/plan-review-core/SKILL.md · 13 lines

What it actually says

Vendored from mattpocock/skills · MIT © 2026 Matt Pocock · upstream 6eeb81b · 已汉化并完成 VoidTech 插件内自包含适配。LICENSE 见 ../_vendor-licenses/mattpocock-LICENSE

逐项审查方案,直到关键问题都有明确结论。沿着每个决策分支检查约束、依赖和取舍;每提出一个问题,都同时给出推荐答案及理由。

每次只问一个问题,在得到针对该问题的反馈之前不要继续。一次抛出多个问题会让人无所适从。

如果某个问题可以通过探查代码库来回答,那就去探查代码库,而不是发问。

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. 1mo ago First seen · 13 lines · 33 tokens per session scan A 0f8a823dfcb8

Subscribe to this mod's changes

plan-review-core is a skill published in the GitHub repository VoidTechnology/voidtech-claude-plugins (2 stars, last pushed 5d ago), licensed Apache-2.0. It adds 33 tokens to every session and 221 once invoked, about $0.0001 per session on Opus 5.5. 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.

Related

Other skills, from other repositories

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

chat-pet-sprite-creation

Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.

microsoft/vscode · 53 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens

insight-error-page

Write or audit an insight-kind error page for the Next.js dev overlay. Use when creating a new errors/ .mdx page, auditing an existing one, or checking that a page matches the framework fix cards. Covers page structure, title alignment, FixCard cards with Copy prompt button, code snippets, terminology verification…

vercel/next.js · 83 tokens