Borrowing it
Nothing to install: this file belongs to sandraschi/nest-protect-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/sandraschi/nest-protect-mcp/main/.cursorrulesgit clone --depth 1 https://github.com/sandraschi/nest-protect-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/sandraschi/nest-protect-mcp/cursorrules)<a href="https://agentmods.dev/rules/sandraschi/nest-protect-mcp/cursorrules"><img src="https://agentmods.dev/badge/rules/sandraschi/nest-protect-mcp/cursorrules/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/sandraschi/nest-protect-mcp/cursorrules"><img src="https://agentmods.dev/badge/rules/sandraschi/nest-protect-mcp/cursorrules.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 | $0.00574 | $0.00574 |
| Opus 5.5 | $0.00230 | $0.00230 |
| Sonnet 5.5 | $0.00115 | $0.00115 |
| Haiku 4.5 | $0.00057 | $0.00057 |
Grade A, and why
cursorrules 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 27d 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.
This is a copy
100% identical to cursorrules — 12 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 69 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Central Documentation Rules
Rule #1: Read Central Docs First
BEFORE making any changes or starting work, ALWAYS:
-
Read the Central Documentation README:
- Location:
D:\Dev\repos\mcp-central-docs\README.md - This shows all important documentation "branches" (folder trees)
- Navigate from there to find specific information
- Location:
-
Follow Documentation Branches:
- Central docs are organized by topic (Anthropic ecosystem, Google ecosystem, patterns, projects, etc.)
- Each branch has its own README explaining what's inside
- Use the branch structure to find relevant docs
-
Check for Existing Patterns:
- Look in
docs/patterns/for design patterns - Check
templates/for reusable templates - Review
docs/projects/for similar project examples
- Look in
-
Avoid Duplication:
- Search existing docs before creating new ones
- Update existing docs rather than creating duplicates
- Reference central docs instead of copying content
Documentation Branches (from Central README)
Core Standards
STANDARDS.md- Documentation quality standardsSTRUCTURE.md- Directory layout guideCONTRIBUTING.md- How to contribute
Anthropic Ecosystem (docs/anthropic-ecosystem/)
- MCP Protocol, FastMCP, MCPB, Claude Desktop, Glama
Google Ecosystem (docs/google-ecosystem/)
- Gemini 3, Antigravity IDE, Nano Banana Pro, DeepMind, TPU infrastructure
Patterns (docs/patterns/)
- Design patterns for MCP servers and development
Projects (docs/projects/)
- myai, veogen, mywienerlinien, autohotkey
Monitoring (monitoring/)
- Prometheus/Grafana/Loki stack
Templates (templates/)
- Reusable templates and scripts
Quick Reference
Central Docs Location: D:\Dev\repos\mcp-central-docs\
Start Here: D:\Dev\repos\mcp-central-docs\README.md
When in doubt: Read the central README and navigate from there.
Session Context (nest-protect-mcp)
Before starting work: read pyproject.toml + src/nest_protect_mcp/fastmcp_server.py
(32 tools: list_nest_devices, hush_active_alarm, start_google_oauth...).
Recall NEST_* auth via just auth; HTTP transport lives in transport.py.
At end of work: run uv run ruff check src/ + uv run pytest tests/ -q, then 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.
- 27d ago Changed · +5 lines · +107 tokens per session 0fcca3eefb0a
- 1mo ago First seen · 64 lines · 467 tokens per session scan A 852d0c7811c4
cursorrules is a cursor rule published in the GitHub repository sandraschi/nest-protect-mcp (2 stars, last pushed 5d ago), licensed MIT. It adds 574 tokens to every session, about $0.0023 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to cursorrules, differing in 12 lines, and is treated as a copy.
Other cursor rules, from other repositories
implementation-honesty
Enforce no fake-success behavior in runtime code and UI.
architect
Global Architect rules for sandraschi's dev environment (Unity and other integrations, FastMCP, React). See mcp-central-docs integrations.
architect
Global Architect rules for sandraschi's dev environment (Unity and other integrations, FastMCP, React). See mcp-central-docs integrations.
architect
Global Architect rules for sandraschi's dev environment (Unity, FastMCP, React).
architect
Global Architect rules for sandraschi's dev environment (Unity, FastMCP, React).
about-codebase
General information about the Lineai MCP Server codebase and its purpose.