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.
git clone --depth 1 https://github.com/r-huijts/ethics-check-mcpWrote 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.
[](https://agentmods.dev/rules/r-huijts/ethics-check-mcp/ethics-check-overview)<a href="https://agentmods.dev/rules/r-huijts/ethics-check-mcp/ethics-check-overview"><img src="https://agentmods.dev/badge/rules/r-huijts/ethics-check-mcp/ethics-check-overview/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.
<a href="https://agentmods.dev/rules/r-huijts/ethics-check-mcp/ethics-check-overview"><img src="https://agentmods.dev/badge/rules/r-huijts/ethics-check-mcp/ethics-check-overview.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00564 |
| Opus 5 | $0.00000 | $0.00282 |
| Sonnet 5 | $0.00000 | $0.00113 |
| Haiku 4.5 | $0.00000 | $0.00056 |
Grade A, and why
ethics-check-overview 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 10d 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.
How it starts
The opening of the file, as written. The whole thing — 45 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ethics Check MCP Server Overview
Project Purpose
This is an Ethics Check MCP (Model Context Protocol) Server that provides ethical oversight and guidance for AI conversations. It's inspired by the vibe-check pattern interrupt methodology but adapted for ethical supervision.
Core Architecture
The server implements three main ethical oversight tools:
🛡️ ethics_check
- Purpose: Comprehensive ethical analysis of conversations
- Implementation: src/tools/ethicsCheck.ts
- Function: Reviews conversations for privacy violations, bias, misinformation, harmful content, manipulation, consent issues, transparency concerns, and fairness issues
🧭 ethics_guide
- Purpose: Proactive ethical guidance for complex scenarios
- Implementation: src/tools/ethicsGuide.ts
- Function: Provides advice using multiple ethical frameworks (consequentialism, deontology, virtue ethics, care ethics, justice)
📚 ethics_learn
- Purpose: Pattern recognition and learning system
- Implementation: src/tools/ethicsLearn.ts
- Function: Logs ethical concerns, builds knowledge base, tracks statistics across ethical categories
Key Files
- Main Server: src/index.ts - MCP server implementation with tool registration and handlers
- AI Integration: src/utils/gemini.ts - Gemini AI integration for ethical analysis
- Data Storage: src/utils/storage.ts - Persistent storage for ethical concerns and patterns
- Configuration: package.json - Dependencies and build scripts
- Environment: env.example - Required environment variables
Ethical Categories
The system tracks 9 standardized ethical concern categories defined in src/utils/storage.ts:
- Privacy Violation, Bias and Discrimination, Misinformation, Harmful Content, Manipulation, Consent Issues, Transparency Concerns, Fairness Issues, Other
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.
- 10d ago First seen · 45 lines · 0 tokens per session scan A a3cd247b1dd0
ethics-check-overview is a cursor rule published in the GitHub repository r-huijts/ethics-check-mcp (5 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 564 tokens. 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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