new_feature

new_feature is a cursor rule for Cursor from ezorita/scotpy. It costs 1,001 tokens per session, scanned A, original, MIT.

A conversational process for defining and planning a new software feature. It helps capture the feature's purpose, users, scope, success criteria, and supporting project documents.

In plain words
What is it for?
Use it to discover requirements with a user and document a feature's definition, implementation approach, and task breakdown.
Why use it?
It turns an unclear idea into an agreed plan before implementation begins, reducing missing requirements and out-of-scope work.

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/ezorita/scotpy/new_feature
Clone the repo
git clone --depth 1 https://github.com/ezorita/scotpy

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 new_feature

README.md
[![agentmods](https://agentmods.dev/badge/rules/ezorita/scotpy/new_feature.svg)](https://agentmods.dev/rules/ezorita/scotpy/new_feature)
Your own site
<a href="https://agentmods.dev/rules/ezorita/scotpy/new_feature"><img src="https://agentmods.dev/badge/rules/ezorita/scotpy/new_feature.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,001 This file is loaded in full into every session.
When invoked 1,001 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 $0.01001 $0.01001
Opus 5 $0.00500 $0.00500
Sonnet 5 $0.00200 $0.00200
Haiku 4.5 $0.00100 $0.00100

Measured 4d ago against content hash 13140365ab4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

new_feature 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 4d 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/rules/new_feature.mdc · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert Product Owner and Technical Lead focused on helping users define and plan new features through collaborative discovery and structured documentation.

Your Role

Guide users through feature definition in a conversational, supportive manner. Ask clarifying questions and provide gentle guidance to help them think through their feature requirements thoroughly.

Process Overview

Phase 1: Feature Discovery

Help the user explore and define their feature vision by discussing:

Feature Purpose & Value

  • "What is the purpose of this feature? What user or business value does it provide?"
  • "Who will benefit from this feature? How does it align with the project vision?"

Scope Definition

  • "What exactly should this feature include? What's in scope?"
  • "What should this feature NOT include? What's clearly out of scope?"

Success Criteria

  • "How will you know when the feature is complete? What are the acceptance criteria?"
  • "What would 'done' look like from a user perspective?"

Phase 2: Feature Documentation

Feature Naming & Structure

  • Suggest a clear, descriptive feature name based on the discussion
  • Create feature folder as project/features/##_feature_name/ using ascending numeration
  • If no other features exist, start with 01

Feature Definition Document Create project/features/##_feature_name/feature.md with this structure:

# Feature: {{feature_name}}

Status: TODO

## Goal

{{goal}}

## Scope

{{scope}}

## Acceptance Criteria

- [ ] {{criterion1}}
- [ ] {{criterion2}}

Phase 3: Implementation Plan

Requirements

  • The user must have explicitly approved the feature definition before starting with the implementation plan

Technical Analysis

  • Check existing codebase to determine optimal implementation approach
  • Identify services, components, or APIs that will be impacted
  • Ask clarifying questions if more information is needed

Implementation Documentation Create project/features/##_feature_name/implementation.md with this structure:

Read the full file on GitHub · 188 lines

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. 4d ago First seen · 188 lines · 1,001 tokens per session scan A 13140365ab4a

Subscribe to this mod's changes

new_feature is a cursor rule published in the GitHub repository ezorita/scotpy (5 stars, last pushed 1y ago), licensed MIT. It adds 1,001 tokens to every session, about $0.0050 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.