00-project-core

00-project-core is a cursor rule for Cursor from cembasaranoglu/crafting-system-claude. It costs 177 tokens per session, scanned A, original, MIT.

A set of core rules for working on a code repository with AI assistance.

In plain words
What is it for?
Use it to guide repository inspections, code changes, documentation updates, validation reports, and safe handling of assistant-generated files.
Why use it?
It helps prevent unsupported claims, accidental scope changes, leaked secrets, and undocumented changes to related interfaces or tests.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it to guide repository inspections, code changes, documentation updates, validation reports, and safe handling of assistant-generated files.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/cembasaranoglu/crafting-system-claude/00-project-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/cembasaranoglu/crafting-system-claude

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 00-project-core

README.md
[![agentmods](https://agentmods.dev/badge/rules/cembasaranoglu/crafting-system-claude/00-project-core/github.svg)](https://agentmods.dev/rules/cembasaranoglu/crafting-system-claude/00-project-core)
Your own site
<a href="https://agentmods.dev/rules/cembasaranoglu/crafting-system-claude/00-project-core"><img src="https://agentmods.dev/badge/rules/cembasaranoglu/crafting-system-claude/00-project-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 00-project-core

Your own site · 80×15
<a href="https://agentmods.dev/rules/cembasaranoglu/crafting-system-claude/00-project-core"><img src="https://agentmods.dev/badge/rules/cembasaranoglu/crafting-system-claude/00-project-core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 177 This file is loaded in full into every session.
When invoked 177 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 $0.00177 $0.00177
Opus 5.5 $0.00071 $0.00071
Sonnet 5.5 $0.00035 $0.00035
Haiku 4.5 $0.00018 $0.00018

Measured 1mo ago against content hash 99643c02ea96, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

00-project-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 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.

cowork/skills/templates-library/references/.cursor/rules/00-project-core.mdc · 17 lines

What it actually says

Core Project Rules

  • Inspect source before making claims.
  • Treat the latest user instruction as highest priority unless it conflicts with safety or repository truth.
  • Do not fabricate files, code behavior, tests, builds, deployments, or readiness.
  • Keep changes scoped to the active task.
  • Do not commit secrets, local paths, environment files, chat transcripts, scratch logs, or assistant run outputs.
  • Keep assistant artifacts outside the shipped repository unless explicitly requested.
  • Do not create wrapper directories like source_code/, workspace/, generated_repo/, final/, output/, or artifacts/ inside the shipped repo.
  • Update tests/docs/config/schema/API/CLI parity when changed surfaces require it.
  • Report validation honestly with exact commands and not-run items.
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 · 17 lines · 177 tokens per session scan A 99643c02ea96

Subscribe to this mod's changes

00-project-core is a cursor rule published in the GitHub repository cembasaranoglu/crafting-system-claude (5 stars, last pushed 5mo ago), licensed MIT. It adds 177 tokens to every session, about $0.0007 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 2026-09-03.