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Better-Fullstack: Instructions file for Claude Code

CLAUDE.md

Better-Fullstack CLAUDE.md is an instructions file for Claude Code from Marve10s/Better-Fullstack. It costs 5 tokens per session, scanned A, original, MIT.

Claude Code instructions covering code style, general working preferences, and how to choose models for different workflows.

In plain words
What is it for?
Use them when making code changes, deciding whether a task needs computer interaction, or selecting a model or helper agent for a particular job.
Why use it?
They help an agent keep changes simple and follow the repository’s preferred way of working.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions AGENTS.md.

This is Marve10s/Better-Fullstack's own configuration. It tells Claude Code how to work on Better-Fullstack 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 Better-Fullstack configures →

not rated 818repo +4 changed 23d ago A scan 5 tokens original MIT
View source ↗ Marve10s/Better-Fullstack better-fullstack.dev
Reuse

Borrowing it

Nothing to install: this file belongs to Marve10s/Better-Fullstack. 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/Marve10s/Better-Fullstack/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/Marve10s/Better-Fullstack

Made for: Claude Code.

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 Better-Fullstack CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/marve10s/better-fullstack/claude-md/github.svg)](https://agentmods.dev/instructions/marve10s/better-fullstack/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/marve10s/better-fullstack/claude-md"><img src="https://agentmods.dev/badge/instructions/marve10s/better-fullstack/claude-md/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 Better-Fullstack CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/marve10s/better-fullstack/claude-md"><img src="https://agentmods.dev/badge/instructions/marve10s/better-fullstack/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 5 This file is loaded in full into every session.
When invoked 5 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 $0.00005 $0.00005
Opus 5.5 $0.00002 $0.00002
Sonnet 5.5 $0.00001 $0.00001
Haiku 4.5 $0.00001 $0.00001

Measured 23d ago against content hash 336cc4fbf19b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Better-Fullstack CLAUDE.md 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 23d 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.

CLAUDE.md · 2 lines

What it actually says

@AGENTS.md

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. 23d ago Changed · -13 lines · -93 tokens per session 336cc4fbf19b
  2. 1mo ago Changed · -54 lines · -2,003 tokens per session scan B → A e2ac191c16a4
  3. 2mo ago Changed · +2 lines · +127 tokens per session 69026bbdedc3
  4. 2mo ago First seen · 67 lines · 1,974 tokens per session scan B 782f86a008af

Subscribe to this mod's changes

Better-Fullstack CLAUDE.md is an instructions file published in the GitHub repository Marve10s/Better-Fullstack (818 stars, last pushed yesterday), licensed MIT. It adds 5 tokens to every session, about $0.0000 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 2026-08-30.

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