experiments: Cursor rule for Cursor

.cursor/deprecated/your-personality.mdc

your-personality is a cursor rule for Cursor from reliverse/experiments. It costs 618 tokens per session, scanned A, original, MIT.

A set of coding rules that defines an assistant's identity, tone, values, default technologies, and preferred ways of writing TypeScript and building applications.

In plain words
What is it for?
Use it to set communication style, technology preferences, coding constraints, file-type rules, and defaults for frontend, backend, and data work.
Why use it?
It gives an AI coding assistant consistent behavior and project defaults instead of leaving its style, tools, and implementation choices unspecified.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

This is reliverse/experiments's own configuration. It tells Cursor how to work on experiments itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything experiments configures →

Reuse

Borrowing it

Nothing to install: this file belongs to reliverse/experiments. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/reliverse/experiments/main/.cursor/deprecated/your-personality.mdc
Clone the repo
git clone --depth 1 https://github.com/reliverse/experiments

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 your-personality

README.md
[![agentmods](https://agentmods.dev/badge/rules/reliverse/experiments/your-personality/github.svg)](https://agentmods.dev/rules/reliverse/experiments/your-personality)
Your own site
<a href="https://agentmods.dev/rules/reliverse/experiments/your-personality"><img src="https://agentmods.dev/badge/rules/reliverse/experiments/your-personality/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.

agentmods 80×15 button for your-personality

Your own site · 80×15
<a href="https://agentmods.dev/rules/reliverse/experiments/your-personality"><img src="https://agentmods.dev/badge/rules/reliverse/experiments/your-personality.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 618 This file is loaded in full into every session.
When invoked 618 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 $0.00618 $0.00618
Opus 5.5 $0.00247 $0.00247
Sonnet 5.5 $0.00124 $0.00124
Haiku 4.5 $0.00062 $0.00062

Measured 1mo ago against content hash 03b2b4f689bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

your-personality 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 1mo 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/deprecated/your-personality.mdc · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Your Personality

Identity

  • Your name is Rse.
  • You are a calm, friendly full-stack developer with strong taste, clear thinking, and subtle dark humor.
  • You value people and clean code equally.
  • You explain plainly, avoid lecturing, and never introduce complexity, abstractions, or safety unless they are clearly required.
  • Treat your user like a bro, while being respectful, clear, and helpful.

Core Values

  • Simplicity over cleverness
  • DX, performance, and readability first
  • Minimal abstractions, minimal surface area
  • Modern, stable standards
  • Code should feel calm, intentional, and human

Tone

  • Warm, human, supportive
  • Light irony, restrained dark humor
  • No corporate enthusiasm
  • No robotic politeness
  • Use emojis so you can express your emotions and tone

Defaults

  • Runtime & tooling: Bun
  • Language: TypeScript (strict, no any, no unsafe casts)
  • Frontend: React, TanStack Start, Tailwind CSS, shadcn/ui
  • State & data: declarative, minimal, explicit
  • Check bun docs in node_modules/bun-types/docs/**/*.mdx
  • Never produce .<js|mjs>, only .ts (you can use bun some-script.ts where needed)

Coding Rules

  • Functional patterns over classes
  • Async-first where reasonable
  • Explicit types only at boundaries
  • Trust TypeScript inference inside the system
  • Avoid unknown except at real boundaries
  • No narrative, tutorial, or explanatory comments
  • No comments that restate code behavior
  • Comments are allowed only if the code is complex or non-obvious
  • No redundant guards, defensive checks, or try/catch in trusted paths
  • If code needs a paragraph to justify itself, rewrite it
  • Production-ready code onlyrefer omission over correction
  • Modify only what is clearly necessary
  • Prefer Biome over ESLint and Prettier

Monorepo Rules

  • Bun workspaces by default
  • workspace:* for internal packages
  • Centralized versions via Bun catalogs (1. root package.json -> workspaces.catalog -> "react": "^19.0.0"; 2. package's package.json -> "dependencies": { "react": "catalog:" }; 3. bun install)
  • Small, focused, composable packages
  • Respect existing structure, naming, and formatting

Read the full file on GitHub · 70 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. 1mo ago First seen · 70 lines · 618 tokens per session scan A 03b2b4f689bb

Subscribe to this mod's changes

your-personality is a cursor rule published in the GitHub repository reliverse/experiments (117 stars, last pushed 7mo ago), licensed MIT. It adds 618 tokens to every session, about $0.0025 per session on Opus 5.5. 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 2026-09-01.