studieplus-mcp: Instructions file for Claude Code

CLAUDE.md

studieplus-mcp CLAUDE.md is an instructions file for Claude Code from ccoodduu/studieplus-mcp. It costs 1,446 tokens per session, scanned A, original, MIT.

Coding instructions for a StudiePlus MCP server, which gives an AI access to Danish student data. They explain how to read the service’s GWT-RPC responses, a structured format used by some web applications.

In plain words
What is it for?
Use them when developing or debugging StudiePlus data access, response parsing, and deserialization code.
Why use it?
They prevent incorrect parsing of the service’s unusual response format and discourage fragile workarounds.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is ccoodduu/studieplus-mcp's own configuration. It tells Claude Code how to work on studieplus-mcp 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 studieplus-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ccoodduu/studieplus-mcp. 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/ccoodduu/studieplus-mcp/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/ccoodduu/studieplus-mcp

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 studieplus-mcp CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/ccoodduu/studieplus-mcp/claude-md.svg)](https://agentmods.dev/instructions/ccoodduu/studieplus-mcp/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/ccoodduu/studieplus-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/ccoodduu/studieplus-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,446 This file is loaded in full into every session.
When invoked 1,446 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 $0.01446 $0.01446
Opus 5 $0.00723 $0.00723
Sonnet 5 $0.00289 $0.00289
Haiku 4.5 $0.00145 $0.00145

Measured 6d ago against content hash 5904863f4813, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

studieplus-mcp 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 6d 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 · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

StudiePlus MCP Server - Projektviden

Projekt

MCP server der giver Claude Desktop adgang til en dansk elevs skoledata fra Studie+. Bruger GWT-RPC API direkte (ingen browser) via requests-biblioteket.

Krav til GWT-parsing

  • INGEN magic numbers eller hacky løsninger
  • Parse data på SAMME måde som JavaScript-koden gør (stack-baseret)
  • Hvis der er udfordringer: meld tilbage i stedet for at ændre plan
  • ALTID følg JS-kodens læserækkefølge

GWT-RPC Format

Response struktur

//OK[data..., ["string_table"], flags, version]
  • //OK eller //EX prefix (success/exception)
  • data - flat array, læses bagfra (stack)
  • string_table - 1-baseret indeksering (0 = null)

Læsefunktioner

  • a.b[--a.a] — pop int fra stack
  • pqd(a, val) — string lookup: val > 0 ? strings[val-1] : null (SINGLE pop, babel-inlined version ser ud som 2 pops men er 1)
  • !!a.b[--a.a] — boolean
  • iqd(a) — objekt: pop, negativ=back-reference, positiv=klasse fra string table, 0=null

Vigtige Deserializers

Note (Lzg — source_babel_inlined.js:26658)

Top-level response fra hentNoteForSkema(lessonId).

function Lzg(a, b) {
  b.a = zUb(iqd(a), 24);    // Integer (SkemaObjekt ID)
  b.b = zUb(iqd(a), 169);   // Medarbejder (lærer)
  b.c = zUb(iqd(a), 211);   // SkemaNote2
}

SkemaNote2 (hAg — source_babel_inlined.js:53626)

16 felter. VIGTIGT: b.c er IKKE fil-container. b.n er fil-container.

b.a  = int              — note ID
b.b  = string           — klasse-navn (f.eks. "htxqr24")
b.c  = int              — schedule container_id (IKKE til filer!)
b.d  = boolean          — has_files
b.e  = string           — lektier tekst
b.f  = string           — lektier HTML
b.g  = string           — note tekst
b.i  = string           — note HTML
b.j  = object (Integer) — schedule container (samme som b.c)
b.k  = string
b.n  = object (Integer) — FILE container_id (BRUG DENNE til filer!)
b.o  = object (UDate)
b.p  = object (Integer)
b.q  = int
b.r  = int
b.s  = string

Read the full file on GitHub · 135 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. 6d ago First seen · 135 lines · 1,446 tokens per session scan A 5904863f4813

Subscribe to this mod's changes

studieplus-mcp CLAUDE.md is an instructions file published in the GitHub repository ccoodduu/studieplus-mcp (0 stars, last pushed 25d ago), licensed MIT. It adds 1,446 tokens to every session, about $0.0072 per session on Opus 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 2026-08-31.

Related

Other instructions, from other repositories

next.js AGENTS.md

AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.

vercel/next.js · 7,296 tokens

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

vscode oss-third-party-notices.instructions.md

Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).

microsoft/vscode · 5,001 tokens

langchain AGENTS.md

AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.

langchain-ai/langchain · 4,469 tokens

spec-kit AGENTS.md

AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.

github/spec-kit · 7,104 tokens