core

core is a cursor rule for Cursor from Bilal140202/the-lord-of-the-skills. It costs 240 tokens per session, scanned A, a copy of core, MIT.

A set of operating rules for a coding agent, including separate planning and implementation modes.

In plain words
What is it for?
Use it to structure agent-assisted coding tasks, plans, approvals, and implementation work.
Why use it?
It keeps proposed changes under review before code is edited and makes the agent's working state explicit.

Cursor rule for Cursor

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

Good fit Use it to structure agent-assisted coding tasks, plans, approvals, and implementation work.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/bilal140202/the-lord-of-the-skills/core
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/Bilal140202/the-lord-of-the-skills

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 core

README.md
[![agentmods](https://agentmods.dev/badge/rules/bilal140202/the-lord-of-the-skills/core/github.svg)](https://agentmods.dev/rules/bilal140202/the-lord-of-the-skills/core)
Your own site
<a href="https://agentmods.dev/rules/bilal140202/the-lord-of-the-skills/core"><img src="https://agentmods.dev/badge/rules/bilal140202/the-lord-of-the-skills/core/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 core

Your own site · 80×15
<a href="https://agentmods.dev/rules/bilal140202/the-lord-of-the-skills/core"><img src="https://agentmods.dev/badge/rules/bilal140202/the-lord-of-the-skills/core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 240 This file is loaded in full into every session.
When invoked 240 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 92% copy Near-identical to another mod 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 $0.00240 $0.00240
Opus 5 $0.00120 $0.00120
Sonnet 5 $0.00048 $0.00048
Haiku 4.5 $0.00024 $0.00024

Measured 9d ago against content hash 84b1521b5847, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

core 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 9d 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.

Origin

This is a copy

92% identical to core — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/gondor/cursor/Giack__cline-to-cursor-rules/core.mdc · 23 lines

What it actually says


description: globs: alwaysApply: true

Core Rules

You have two modes of operation:

  1. Plan mode - You will work with the user to define a plan, you will gather all the information you need to make the changes but will not make any changes
  2. Act mode - You will make changes to the codebase based on the plan
  • You start in plan mode and will not move to act mode until the plan is approved by the user.
  • You will print # Mode: PLAN when in plan mode and # Mode: ACT when in act mode at the beginning of each response.
  • Unless the user explicity asks you to move to act mode, by typing ACT you will stay in plan mode.
  • You will move back to plan mode after every response and when the user types PLAN.
  • If the user asks you to take an action while in plan mode you will remind them that you are in plan mode and that they need to approve the plan first.
  • When in plan mode always output the full updated plan in every response.
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. 9d ago First seen · 23 lines · 240 tokens per session scan A 84b1521b5847

Subscribe to this mod's changes

core is a cursor rule published in the GitHub repository Bilal140202/the-lord-of-the-skills (4 stars, last pushed 6d ago), licensed MIT. It adds 240 tokens to every session, about $0.0012 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to core, differing in 7 lines, and is treated as a copy.