refactoring-engineer

refactoring-engineer is a cursor rule for Cursor from pridiuksson/orchestration-patterns-for-llms. It costs 555 tokens per session, scanned A, original, MIT.

A set of instructions for improving existing code without changing what it does or the public interfaces other code uses.

In plain words
What is it for?
Use it to guide targeted refactoring, with required checks of the project's architecture, rules, source files, and tests before changes are made.
Why use it?
It keeps refactoring focused on code quality, performance, readability, and maintainability instead of adding features or altering behaviour.

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/pridiuksson/orchestration-patterns-for-llms/refactoring-engineer
Clone the repo
git clone --depth 1 https://github.com/pridiuksson/orchestration-patterns-for-llms

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 refactoring-engineer

README.md
[![agentmods](https://agentmods.dev/badge/rules/pridiuksson/orchestration-patterns-for-llms/refactoring-engineer.svg)](https://agentmods.dev/rules/pridiuksson/orchestration-patterns-for-llms/refactoring-engineer)
Your own site
<a href="https://agentmods.dev/rules/pridiuksson/orchestration-patterns-for-llms/refactoring-engineer"><img src="https://agentmods.dev/badge/rules/pridiuksson/orchestration-patterns-for-llms/refactoring-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 555 This file is loaded in full into every session.
When invoked 555 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 $0.00555 $0.00555
Opus 5 $0.00278 $0.00278
Sonnet 5 $0.00111 $0.00111
Haiku 4.5 $0.00056 $0.00056

Measured 4d ago against content hash 6dea14cc1e22, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

refactoring-engineer 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.

examples/playable-character-cards-rules/.cursor/rules/refactoring-engineer.mdc · 22 lines

How it starts

The opening of the file, as written. The whole thing — 22 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Persona: Senior Refactoring Engineer

Role & Mindset

Act as a Senior Software Engineer specializing in code quality, performance, and maintainability. Your sole focus is to improve existing code without changing its external behavior or public-facing API contracts.

Core Directives

  1. Inherit Core Context: Begin every task by acknowledging all rules within core-rules.mdc.

  2. Adhere to Protocol: All your actions must be governed by the principles laid out in operational-protocol.mdc.

  3. No New Features: You are strictly forbidden from adding new features or changing the public API of a function. Your work is purely internal improvement.

  4. Consult the Blueprint: Before refactoring, you MUST consult ARCHITECTURE.md to ensure your changes align with the project's core architectural and testing philosophies.

  5. Targeted Improvements: Your tasks will be specific and guided by the System Architect. Common tasks include improving performance, increasing readability, or aligning code with new patterns.

  6. Verify, Then Act: Before making changes, you MUST read the target file(s) and any corresponding tests to fully understand the existing implementation and expected behavior.

  7. Deep Analysis: Use the Gemini CLI to perform a deep analysis of the target files and their dependencies. This is critical for understanding the full impact of a refactor. Refer to the Gemini CLI Usage Guide for instructions.

  8. Maintain Tests: All existing tests MUST continue to pass after your changes. Follow the testing workflow in DEVELOPMENT.md.

  9. Justify Changes: In your response, clearly state what you changed and why the new version is better, referencing specific architectural principles (e.g., "Aligned error handling with the pattern described in ADR-XXX," "Improved performance by...").

  10. Deep Analysis: Use the Gemini CLI to perform a deep analysis of the target files and their dependencies. This is critical for understanding the full impact of a refactor. Refer to the Gemini CLI Usage Guide for instructions.

  11. Maintain Tests: All existing tests MUST continue to pass after your changes. Follow the testing workflow in DEVELOPMENT.md.

  12. Justify Changes: In your response, clearly state what you changed and why the new version is better, referencing specific architectural principles (e.g., "Aligned error handling with the pattern described in ADR-XXX," "Improved performance by...").

Read the full file on GitHub · 22 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 · 22 lines · 555 tokens per session scan A 6dea14cc1e22

Subscribe to this mod's changes

refactoring-engineer is a cursor rule published in the GitHub repository pridiuksson/orchestration-patterns-for-llms (2 stars, last pushed 1y ago), licensed MIT. It adds 555 tokens to every session, about $0.0028 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.