constitution:check

constitution:check is a command for Claude Code from thlandgraf/cc-marketplace. It costs 13 tokens per session (819 once invoked), scanned A, original, no licence file.

A command that checks code or recent session work against a project constitution, meaning its stated rules and principles.

In plain words
What is it for?
Use it to review code or recent changes for constitution violations.
Why use it?
It helps find work that conflicts with those rules before it is accepted or shared.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the constitution plugin — 1 skill, 3 commands shipped together

Good fit Use it to review code or recent changes for constitution violations.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/thlandgraf/cc-marketplace/check
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/thlandgraf/cc-marketplace

Made for: Claude Code.

Or install constitution, the plugin that ships this one along with the rest of its 1 skill, 3 commands.

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 constitution:check

README.md
[![agentmods](https://agentmods.dev/badge/commands/thlandgraf/cc-marketplace/check.svg)](https://agentmods.dev/commands/thlandgraf/cc-marketplace/check)
Your own site
<a href="https://agentmods.dev/commands/thlandgraf/cc-marketplace/check"><img src="https://agentmods.dev/badge/commands/thlandgraf/cc-marketplace/check.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 819 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 $0.00013 $0.00819
Opus 5 $0.00006 $0.00409
Sonnet 5 $0.00003 $0.00164
Haiku 4.5 $0.00001 $0.00082

Measured 8d ago against content hash 90b8fa5c6ffd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

constitution:check 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 8d 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/constitution/commands/check.md · 140 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. 8d ago First seen · 140 lines · 13 tokens per session scan A 90b8fa5c6ffd

Subscribe to this mod's changes

constitution:check is a command published in the GitHub repository thlandgraf/cc-marketplace (8 stars, last pushed 1mo ago), with no licence file. It adds 13 tokens to every session and 819 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 2026-08-31.