What is hogwarts CLAUDE.md?

Project-specific instructions for Claude Code in the databayt/hogwarts repository, including startup guidance, safety rules, database precautions, and actions that hooks block automatically.

Starting work in the repository, following its required workflow, and avoiding prohibited database or other operations.

They give the coding agent repository context and guardrails, reducing the chance of unsafe or disallowed changes.

How databayt/hogwarts configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to databayt/hogwarts. 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/databayt/hogwarts/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/databayt/hogwarts

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/databayt/hogwarts/claude-md/github.svg)](https://agentmods.dev/instructions/databayt/hogwarts/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/databayt/hogwarts/claude-md"><img src="https://agentmods.dev/badge/instructions/databayt/hogwarts/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/databayt/hogwarts/claude-md"><img src="https://agentmods.dev/badge/instructions/databayt/hogwarts/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,602 This file is loaded in full into every session.

When invoked 2,602 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 unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.02602	$0.02602
Opus 5.5	$0.01041	$0.01041
Sonnet 5.5	$0.00520	$0.00520
Haiku 4.5	$0.00260	$0.00260

Measured 1mo ago against content hash 077293094ae8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hogwarts 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 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.

CLAUDE.md · 146 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

1mo ago Changed · -130 lines · -720 tokens per session 077293094ae8
1mo ago Changed · +5 lines · +113 tokens per session 39bc674d9728
2mo ago First seen · 271 lines · 3,209 tokens per session scan A 64d2359564e4

Subscribe to this mod's changes

hogwarts CLAUDE.md is an instructions file published in the GitHub repository databayt/hogwarts (18 stars, last pushed 3d ago), with no licence file. It adds 2,602 tokens to every session, about $0.0104 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.

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hogwarts CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
hogwarts CLAUDE.mddatabayt/hogwarts	Instructions file	18	3d ago	none	A	2,602	Claude Code
plan-forge dapr.instructions.mdsrnichols/plan-forge	Instructions file	6	2d ago	MIT	A	4,975	GitHub Copilot
plan-forge landing-zone.instructions.mdsrnichols/plan-forge	Instructions file	6	2d ago	MIT	A	2,239	GitHub Copilot
plan-forge policy.instructions.mdsrnichols/plan-forge	Instructions file	6	2d ago	MIT	A	2,019	GitHub Copilot
plan-forge bicep.instructions.mdsrnichols/plan-forge	Instructions file	6	2d ago	MIT	A	1,728	GitHub Copilot
plan-forge caf.instructions.mdsrnichols/plan-forge	Instructions file	6	2d ago	MIT	A	1,476	GitHub Copilot
plan-forge deploy.instructions.mdsrnichols/plan-forge	Instructions file	6	2d ago	MIT	A	1,667	GitHub Copilot

hogwarts: Instructions file for Claude Code