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Hedron: Command for Claude Code

.claude/commands/check-layers.md

check-layers is a command for Claude Code from dmbyer/Hedron. It costs 12 tokens per session (135 once invoked), scanned A, original, no licence file.

An architecture-review command that checks the current branch's changes against the master branch.

In plain words
What is it for?
Use it to review the architecture of the current branch diff compared with master.
Why use it?
It helps reveal architectural issues in the changes before they are merged.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

This is dmbyer/Hedron's own configuration. It tells Claude Code how to work on Hedron 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 Hedron configures →

not rated 11repo 2d ago A scan 12 tokens no licence
View source ↗ dmbyer/Hedron
Reuse

Borrowing it

Nothing to install: this file belongs to dmbyer/Hedron. 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/dmbyer/Hedron/master/.claude/commands/check-layers.md
Clone the repo
git clone --depth 1 https://github.com/dmbyer/Hedron

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 check-layers

README.md
[![agentmods](https://agentmods.dev/badge/commands/dmbyer/hedron/check-layers/github.svg)](https://agentmods.dev/commands/dmbyer/hedron/check-layers)
Your own site
<a href="https://agentmods.dev/commands/dmbyer/hedron/check-layers"><img src="https://agentmods.dev/badge/commands/dmbyer/hedron/check-layers/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 check-layers

Your own site · 80×15
<a href="https://agentmods.dev/commands/dmbyer/hedron/check-layers"><img src="https://agentmods.dev/badge/commands/dmbyer/hedron/check-layers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 135 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 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 $0.00012 $0.00135
Opus 5.5 $0.00005 $0.00054
Sonnet 5.5 $0.00002 $0.00027
Haiku 4.5 $0.00001 $0.00014

Measured 2mo ago against content hash 18e379d04c70, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

check-layers 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 2mo 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.

.claude/commands/check-layers.md · 11 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 2mo ago First seen · 11 lines · 12 tokens per session scan A 18e379d04c70

Subscribe to this mod's changes

check-layers is a command published in the GitHub repository dmbyer/Hedron (11 stars, last pushed 2d ago), with no licence file. It adds 12 tokens to every session and 135 once invoked, about $0.0000 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 2026-08-30.

C# and .NETCode reviewmudmud-serverrpgtext-based-gametext-game
Related

check-layers compared with commands from other repositories

check-layers next to 6 commands from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
check-layersdmbyer/HedronCommand112d agononeA12Claude Code
indexxberg-io/crawlbergCommand195yesterdayMITA0Claude Code
security-reviewerTenon-Net/TenonAdminCommand4114d agoApache-2.0A16Claude Code, Codex
style-reviewerTenon-Net/TenonAdminCommand4114d agoApache-2.0A11Claude Code, Codex
criticTenon-Net/TenonAdminCommand4114d agoApache-2.0A11Claude Code, Codex
api-reviewerTenon-Net/TenonAdminCommand4114d agoApache-2.0A11Claude Code, Codex
code-reviewerTenon-Net/TenonAdminCommand4114d agoApache-2.0A8Claude Code, Codex