compass-integrity

compass-integrity is a skill for Claude Code from chunxiaoxx/nautilus-compass. It costs 74 tokens per session (1,261 once invoked), scanned A, original, no licence file.

An integrity check for Compass project memory, using a Merkle chain, drift summary, and daemon status.

In plain words
What is it for?
Use it before making important decisions based on Compass memory, or after crashes, merges, or suspected memory problems.
Why use it?
It helps detect altered memory, divergence from earlier intent, or a stopped memory daemon before relying on past session information.

Skill for Claude Code

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

Part of the nautilus-compass plugin — 5 skills, 5 commands, 1 MCP server shipped together

Good fit Use it before making important decisions based on Compass memory, or after crashes, merges, or suspected memory problems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/chunxiaoxx/nautilus-compass/compass-integrity
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 chunxiaoxx/nautilus-compass --skill compass-integrity
Clone the repo
git clone --depth 1 https://github.com/chunxiaoxx/nautilus-compass

Made for: Claude Code.

Or install nautilus-compass, the plugin that ships this one along with the rest of its 5 skills, 5 commands, 1 MCP server.

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 compass-integrity

README.md
[![agentmods](https://agentmods.dev/badge/skills/chunxiaoxx/nautilus-compass/compass-integrity.svg)](https://agentmods.dev/skills/chunxiaoxx/nautilus-compass/compass-integrity)
Your own site
<a href="https://agentmods.dev/skills/chunxiaoxx/nautilus-compass/compass-integrity"><img src="https://agentmods.dev/badge/skills/chunxiaoxx/nautilus-compass/compass-integrity.svg" alt="Measured on agentmods" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,261 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 $0.00074 $0.01261
Opus 5 $0.00037 $0.00630
Sonnet 5 $0.00015 $0.00252
Haiku 4.5 $0.00007 $0.00126

Measured 8d ago against content hash 48905c1f8ab8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

compass-integrity 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.

skills/compass-integrity/SKILL.md · 105 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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 · 105 lines · 74 tokens per session scan A 48905c1f8ab8

Subscribe to this mod's changes

compass-integrity is a skill published in the GitHub repository chunxiaoxx/nautilus-compass (7 stars, last pushed today), with no licence file. It adds 74 tokens to every session and 1,261 once invoked, about $0.0004 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.

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