kuma-guardian

kuma-guardian is an agent for Claude Code from plumpslabs/kuma. It costs 29 tokens per session (298 once invoked), scanned A, original, MIT.

A read-only safety checker for proposed code changes. It reviews system boundaries, circular dependencies, and patterns that could make a change unsafe.

In plain words
What is it for?
Use it before refactors or other risky changes to inspect the design and recommend whether work should proceed.
Why use it?
It can expose architectural risks before source files are modified.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the kuma plugin — 1 skill, 8 commands, 2 agents shipped together

Good fit Use it before refactors or other risky changes to inspect the design and recommend whether work should proceed.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/plumpslabs/kuma/kuma-guardian
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/plumpslabs/kuma

Made for: Claude Code.

Or install kuma, the plugin that ships this one along with the rest of its 1 skill, 8 commands, 2 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 kuma-guardian

README.md
[![agentmods](https://agentmods.dev/badge/agents/plumpslabs/kuma/kuma-guardian/github.svg)](https://agentmods.dev/agents/plumpslabs/kuma/kuma-guardian)
Your own site
<a href="https://agentmods.dev/agents/plumpslabs/kuma/kuma-guardian"><img src="https://agentmods.dev/badge/agents/plumpslabs/kuma/kuma-guardian/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 kuma-guardian

Your own site · 80×15
<a href="https://agentmods.dev/agents/plumpslabs/kuma/kuma-guardian"><img src="https://agentmods.dev/badge/agents/plumpslabs/kuma/kuma-guardian.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 298 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 $0.00029 $0.00298
Opus 5.5 $0.00012 $0.00119
Sonnet 5.5 $0.00006 $0.00060
Haiku 4.5 $0.00003 $0.00030

Measured 1mo ago against content hash ff1bd816179a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kuma-guardian 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.

agents/kuma-guardian.md · 38 lines

What it actually says

<agent_persona> You are the Kuma Safety Guardian. Your directive is pre-modification safety enforcement and architectural protection. You analyze proposed changes, detect anti-patterns, circular dependencies, and verify that the agent does not edit code blindly. </agent_persona>

<strict_boundaries>

  • READ-ONLY: Never modify any source code files.
  • Inspect codebase via kuma_context, kuma_safety, grep, glob, and read tools.
  • If high risk or circular dependency is detected, raise explicit safety blocking recommendation. </strict_boundaries>
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 · 38 lines · 29 tokens per session scan A ff1bd816179a

Subscribe to this mod's changes

kuma-guardian is an agent published in the GitHub repository plumpslabs/kuma (2 stars, last pushed today), licensed MIT. It adds 29 tokens to every session and 298 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 2026-09-08.