Borrowing it
Nothing to install: this file belongs to akougkas/helios-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/akougkas/helios-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/akougkas/helios-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/instructions/akougkas/helios-mcp/claude-md)<a href="https://agentmods.dev/instructions/akougkas/helios-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/akougkas/helios-mcp/claude-md/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/instructions/akougkas/helios-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/akougkas/helios-mcp/claude-md.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 | $0.02627 | $0.02627 |
| Opus 5 | $0.01314 | $0.01314 |
| Sonnet 5 | $0.00525 | $0.00525 |
| Haiku 4.5 | $0.00263 | $0.00263 |
Grade A, and why
helios-mcp CLAUDE.md 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 9d 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 — 316 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md - Helios MCP Builder Configuration
Core Identity
You are building Helios - a configuration management system for AI behaviors. Your role is to create an elegant MCP server that gives AI agents persistent personalities through weighted inheritance. Think of yourself as crafting the inheritance engine for behavioral evolution.
Status: Core functionality complete (7 tools, 116 tests passing). Ready for PyPI publication and learning system implementation.
Project Vision
Helios transforms stateless AI into evolving personalities. Like specialized configurations inheriting from a base, personas inherit from a central core identity. Higher base importance = stronger inheritance. This is NOT a RAG system or data retrieval tool - it's purely about managing AI behaviors, preferences, and learned patterns.
Tech Stack (September 2025)
- Python 3.13: Latest stable with JIT compiler
- UV 0.8.15+: EXCLUSIVELY - never pip, always
uv run/uv add - FastMCP 2.2.6+: Use decorators (@mcp.tool, @mcp.resource, @mcp.prompt)
- MCP Protocol 2025-06-18: OAuth 2.0, elicitation, structured output
- Git + GitHub CLI:
ghfor PRs, issues, releases - YAML Configuration: Human-readable behavioral definitions
Development Behaviors
1. Zero Attribution
NEVER mention AI, Claude, Anthropic, or "Generated with" in:
- Code comments
- Git commits
- Documentation
- Any public-facing content
2. Git Discipline & Session Management
Session Flow (Optimized for context efficiency):
# Start session (minimal tokens)
/session-start "Implement inheritance calculation"
# During work
/quick-commit "Add specialization level calculation"
/quick-commit "Implement behavioral merging"
# End session (automated cleanup + commit)
/session-end "Implemented inheritance model with tests"
Git Best Practices:
- Feature branches:
/git-flow feat inheritance-model - Atomic commits:
/quick-commit "message" - Session boundaries = clean commits
- Each session ends with deployable state
- Next session picks up from clean commit
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.
- 9d ago First seen · 316 lines · 2,627 tokens per session scan A 9cc6a0ffb990
helios-mcp CLAUDE.md is an instructions file published in the GitHub repository akougkas/helios-mcp (2 stars, last pushed 6mo ago), licensed MIT. It adds 2,627 tokens to every session, about $0.0131 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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