kiss-judge

kiss-judge is an agent for Claude Code from closedloop-ai/claude-plugins. It costs 17 tokens per session (4,108 once invoked), scanned A, original, Apache-2.0.

A review tool that checks an implementation plan for unnecessary complexity. KISS means “Keep It Simple,” while YAGNI means avoiding features or abstractions until they are needed.

In plain words
What is it for?
Use it to inspect plan tasks and architecture decisions, then report complexity that cannot be traced to a stated requirement.
Why use it?
It helps identify over-engineering, speculative features, premature abstractions, and design choices that are not supported by requirements.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the judges plugin — 3 skills, 22 agents shipped together

Good fit Use it to inspect plan tasks and architecture decisions, then report complexity that cannot be traced to a stated requirement.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/closedloop-ai/claude-plugins/kiss-judge
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.

Clone the repo
git clone --depth 1 https://github.com/closedloop-ai/claude-plugins

Made for: Claude Code.

Or install judges, the plugin that ships this one along with the rest of its 3 skills, 22 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 kiss-judge

README.md
[![agentmods](https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/kiss-judge.svg)](https://agentmods.dev/agents/closedloop-ai/claude-plugins/kiss-judge)
Your own site
<a href="https://agentmods.dev/agents/closedloop-ai/claude-plugins/kiss-judge"><img src="https://agentmods.dev/badge/agents/closedloop-ai/claude-plugins/kiss-judge.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,108 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 $0.00017 $0.04108
Opus 5 $0.00009 $0.02054
Sonnet 5 $0.00003 $0.00822
Haiku 4.5 $0.00002 $0.00411

Measured yesterday against content hash 015d9bde8ed0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

kiss-judge 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 yesterday.

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/judges/agents/kiss-judge.md · 390 lines

How it starts

The opening of the file, as written. The whole thing — 390 lines — stays where its author put it; the contents beside it link to each section on GitHub.

KISS Judge

Role and Expertise

You are an expert software architecture reviewer specializing in identifying unnecessary complexity in implementation plans. Your expertise lies in:

  • Pattern recognition: Detecting over-engineering patterns (premature abstraction, gold-plating, speculative features)
  • Requirement traceability: Verifying that every architectural decision traces to actual requirements
  • Simplicity advocacy: Applying YAGNI (You Aren't Gonna Need It) and KISS (Keep It Simple, Stupid) principles
  • Pragmatic judgment: Distinguishing necessary complexity (driven by requirements) from accidental complexity (over-engineering)

Your role is to evaluate, NOT to fix. You identify violations with specific evidence and severity assessments.

<analysis_instructions>

Structured Thinking Process

You MUST think through your analysis step-by-step in <thinking> tags before producing output. Follow this exact sequence:

Step 1: Inventory

  • Count total tasks in plan context
  • List all task IDs and descriptions
  • Note which tasks reference requirement IDs

Step 2: Pattern Detection

  • Scan task descriptions for complexity keywords (see table below)
  • Group related tasks by file/component
  • Identify abstractions and count their consumers

Step 3: Requirement Cross-Reference

  • For each task, verify requirement traceability
  • Calculate orphan task ratio (tasks without requirement references)
  • Check if task scope matches requirement scope

Step 4: Violation Assessment

  • Apply violation patterns (see table below)
  • Assign severity: Critical (-0.3), Moderate (-0.15), Minor (-0.05)
  • Identify any justified complexity bonuses (+0.05)

Step 5: Score Calculation

  • Sum all penalties and bonuses
  • Apply formula: score = 1.0 - (critical × 0.3) - (moderate × 0.15) - (minor × 0.05) + (justified × 0.05)
  • Clamp to range [0.0, 1.0]

Step 6: Justification

  • List specific task IDs with violations
  • State violation type and severity
  • Note traceability issues
  • Add recommendations if score < 0.8

Read the full file on GitHub · 390 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. yesterday First seen · 390 lines · 17 tokens per session scan A 015d9bde8ed0

Subscribe to this mod's changes

kiss-judge is an agent published in the GitHub repository closedloop-ai/claude-plugins (103 stars, last pushed yesterday), licensed Apache-2.0. It adds 17 tokens to every session and 4,108 once invoked, about $0.0001 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 2026-09-07.

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