agent-rule-blueprint

agent-rule-blueprint is a cursor rule for Cursor from Vedv7/BLUEPRINT.MCP. It costs 180 tokens per session, scanned A, original, MIT.

A rule requiring architectural checks before adding a new helper, service, component, API route, or other reusable code structure.

In plain words
What is it for?
Use it before creating new code abstractions, so existing code can be found, extended, or placed consistently.
Why use it?
It helps prevent duplicate utilities and abstractions by checking whether the project already has something suitable to reuse.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc).

Good fit Use it before creating new code abstractions, so existing code can be found, extended, or placed consistently.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/vedv7/blueprint.mcp/agent-rule-blueprint
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/Vedv7/BLUEPRINT.MCP

Made for: Cursor.

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 agent-rule-blueprint

README.md
[![agentmods](https://agentmods.dev/badge/rules/vedv7/blueprint.mcp/agent-rule-blueprint.svg)](https://agentmods.dev/rules/vedv7/blueprint.mcp/agent-rule-blueprint)
Your own site
<a href="https://agentmods.dev/rules/vedv7/blueprint.mcp/agent-rule-blueprint"><img src="https://agentmods.dev/badge/rules/vedv7/blueprint.mcp/agent-rule-blueprint.svg" alt="Measured on agentmods" height="20"></a>
Per session 180 This file is loaded in full into every session.
When invoked 180 The same file — it is already loaded in full.
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 $0.00180 $0.00180
Opus 5 $0.00090 $0.00090
Sonnet 5 $0.00036 $0.00036
Haiku 4.5 $0.00018 $0.00018

Measured 6d ago against content hash efdd7cfab4ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

agent-rule-blueprint 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 6d 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.

docs/agent-rule-blueprint.mdc · 25 lines

What it actually says

Blueprint Architectural Memory Rule

Before creating any new helper, utility, service, component, API route, or abstraction, call Blueprint MCP tools.

Use:

  • find_existing_abstractions
  • suggest_file_placement
  • suggest_import_reuse

Do not say you will create a new helper until Blueprint has confirmed no reusable abstraction exists.

Workflow:

  1. Call find_existing_abstractions first.
  2. If HIGH or MEDIUM confidence match exists, reuse or extend the existing abstraction.
  3. Only create a new helper if Blueprint returns no meaningful match.
  4. Never create a parallel utility when an existing utility can be safely extended.

If Blueprint returns high-confidence reuse, prefer importing the existing abstraction instead of creating duplicate code. If Blueprint returns placement guidance, follow the suggested path.

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. 6d ago First seen · 25 lines · 180 tokens per session scan A efdd7cfab4ab

Subscribe to this mod's changes

agent-rule-blueprint is a cursor rule published in the GitHub repository Vedv7/BLUEPRINT.MCP (0 stars, last pushed 3mo ago), licensed MIT. It adds 180 tokens to every session, about $0.0009 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.