plan-review-gate

plan-review-gate is a skill for Claude Code from dsifry/metaswarm. It costs 32 tokens per session (4,083 once invoked), scanned A, original, MIT.

An automatic checkpoint for software implementation plans. It sends each plan to three separate reviewers who check whether it is feasible, complete, and within scope before it is shown to the user.

In plain words
What is it for?
Use it after drafting a plan that involves several work items or files. It is meant to challenge plans before implementation starts.
Why use it?
It helps catch missing work, unrealistic steps, and misunderstandings before coding begins. A plan must pass all three reviews, with revisions and another review if needed.

Skill for Claude Code

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

Part of the metaswarm plugin — 14 skills, 16 commands, 2 hooks shipped together

Good fit Use it after drafting a plan that involves several work items or files. It is meant to challenge plans before implementation starts.

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

Made for: Claude Code.

Or install metaswarm, the plugin that ships this one along with the rest of its 14 skills, 16 commands, 2 hooks.

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-gate

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/dsifry/metaswarm/plan-review-gate"><img src="https://agentmods.dev/badge/skills/dsifry/metaswarm/plan-review-gate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,083 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 354
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00032 $0.04083
Opus 5 $0.00016 $0.02041
Sonnet 5 $0.00006 $0.00817
Haiku 4.5 $0.00003 $0.00408

Measured 9d ago against content hash 864016bd0f4b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

plan-review-gate 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 9d 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/plan-review-gate/SKILL.md · 455 lines

How it starts

The opening of the file, as written. The whole thing — 455 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan Review Gate

Core principle: No plan reaches the user without surviving independent adversarial scrutiny.

Purpose

This skill automatically activates after any implementation plan is drafted, before presenting it to the user. It spawns three independent adversarial reviewers in parallel — Feasibility, Completeness, and Scope & Alignment — each as a fresh Task() instance. ALL three must PASS. On failure, the planner incorporates feedback and resubmits to entirely fresh reviewer instances. The gate iterates until consensus or max iterations.


Activation Triggers

This skill auto-activates when:

  1. An implementation plan is drafted (by planner, explorer, or orchestrator)
  2. The writing-plans skill completes a plan
  3. The orchestrator's plan validation phase produces a plan for review
  4. User explicitly requests: /plan-review <path-to-plan>

Do NOT use for: Trivial changes (single-file bug fixes, copy edits, config tweaks). The plan must have at least 2 work units or touch 3+ files to warrant gate review.


The 3 Adversarial Reviewers

Each reviewer is a fresh Task() instance with read-only access to the codebase. Reviewers produce binary PASS/FAIL verdicts backed by cited evidence. No suggestions — only findings.

Reviewer 1: Feasibility

Can this plan actually be executed against the real codebase?

Check Classification Criteria
File paths exist BLOCKING if fabricated Every file path referenced in the plan must exist (verify with glob/grep)
Dependency ordering correct BLOCKING if circular or forward-ref Work units depend only on things that exist or are created before them
Technical approach matches codebase BLOCKING if incompatible Proposed patterns, libraries, and conventions match what the codebase actually uses
No unstated assumptions BLOCKING if critical Plan does not silently depend on services, env vars, or infrastructure that doesn't exist
File scope realistic WARNING Each work unit's file scope is achievable without cascading changes

Read the full file on GitHub · 455 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. 9d ago First seen · 455 lines · 32 tokens per session scan A 864016bd0f4b

Subscribe to this mod's changes

plan-review-gate is a skill published in the GitHub repository dsifry/metaswarm (413 stars, last pushed 2mo ago), licensed MIT. It adds 32 tokens to every session and 4,083 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 2026-08-30.

Related

Other skills, from other repositories

systematic-debugging

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

obra/superpowers · 21 tokens

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

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

next-cache-components-optimizer

Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…

vercel/next.js · 170 tokens

next-partial-prefetching-adoption

Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…

vercel/next.js · 103 tokens

chronicle

Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting…

microsoft/vscode · 72 tokens