90-project-local

90-project-local is a cursor rule for Cursor from pueraeternis/agentic-project-template. It costs 285 tokens per session, scanned A, original, MIT.

A project-specific set of engineering rules whose authoritative details live in docs/project/ENGINEERING.md.

In plain words
What is it for?
Keeping code changes aligned with the project’s language versions, tools, structure, testing, and deployment practices.
Why use it?
It tells coding agents where to find the repository’s actual conventions without copying or inventing them elsewhere.

Cursor rule for Cursor

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.

agentmods
npx agentmods add rules/pueraeternis/agentic-project-template/90-project-local
Clone the repo
git clone --depth 1 https://github.com/pueraeternis/agentic-project-template

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 90-project-local

README.md
[![agentmods](https://agentmods.dev/badge/rules/pueraeternis/agentic-project-template/90-project-local.svg)](https://agentmods.dev/rules/pueraeternis/agentic-project-template/90-project-local)
Your own site
<a href="https://agentmods.dev/rules/pueraeternis/agentic-project-template/90-project-local"><img src="https://agentmods.dev/badge/rules/pueraeternis/agentic-project-template/90-project-local.svg" alt="Measured on agentmods" height="20"></a>
Per session 285 This file is loaded in full into every session.
When invoked 285 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00285 $0.00285
Opus 5 $0.00143 $0.00143
Sonnet 5 $0.00057 $0.00057
Haiku 4.5 $0.00028 $0.00028

Measured 5d ago against content hash a40f284b679d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

90-project-local 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 5d 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.

.cursor/templates/90-project-local.mdc · 80 lines

What it actually says


Project-Specific Conventions

This rule adapts the shared engineering framework to this specific repository.

Project-specific engineering decisions are defined in:

docs/project/ENGINEERING.md

Follow that document whenever project-specific conventions are required.

Do not duplicate engineering decisions here.


Purpose

Use this rule to remind the agent that project-specific engineering conventions override generic defaults.

Examples include:

  • language version;
  • dependency management;
  • repository layout;
  • runtime technologies;
  • testing strategy;
  • validation commands;
  • coding conventions;
  • deployment assumptions.

The authoritative source remains ENGINEERING.md.


When ENGINEERING.md Exists

Treat ENGINEERING.md as authoritative for:

  • language and runtime versions;
  • package management;
  • repository structure;
  • project technology stack;
  • configuration strategy;
  • coding conventions;
  • validation workflow;
  • operational assumptions.

Do not invent engineering conventions that are not documented.


Local Cursor Guidance

Only place Cursor-specific guidance here when it cannot reasonably belong in the framework.

Examples:

  • repository-specific prompting hints;
  • preferred repository navigation;
  • editor-specific workflow adjustments.

Avoid duplicating framework documentation.

Avoid duplicating project documentation.


General Rule

Framework rules define how engineering is performed.

ENGINEERING.md defines how this project is engineered.

This file only bridges the framework to Cursor.

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. 5d ago First seen · 80 lines · 285 tokens per session scan A a40f284b679d

Subscribe to this mod's changes

90-project-local is a cursor rule published in the GitHub repository pueraeternis/agentic-project-template (2 stars, last pushed 2mo ago), licensed MIT. It adds 285 tokens to every session, about $0.0014 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.