Borrowing it
Nothing to install: this file belongs to marcmodin/mcp-prompt-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/marcmodin/mcp-prompt-server/main/CLAUDE.mdgit clone --depth 1 https://github.com/marcmodin/mcp-prompt-serverWrote 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.
[](https://agentmods.dev/instructions/marcmodin/mcp-prompt-server/claude-md)<a href="https://agentmods.dev/instructions/marcmodin/mcp-prompt-server/claude-md"><img src="https://agentmods.dev/badge/instructions/marcmodin/mcp-prompt-server/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00123 | $0.00123 |
| Opus 5 | $0.00062 | $0.00062 |
| Sonnet 5 | $0.00025 | $0.00025 |
| Haiku 4.5 | $0.00012 | $0.00012 |
Grade A, and why
mcp-prompt-server 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 7d 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.
What it actually says
Claude Instructions
MANDATORY: Before proceeding with any task in this repository, you MUST read AGENTS.md if you haven't already done so in this conversation.
Enforcement
This is a hard requirement. If you have not yet read AGENTS.md in the current session:
- Stop what you're doing
- Read AGENTS.md immediately
- Then proceed with the user's request
Purpose
AGENTS.md contains critical project-specific instructions, architecture references, and constraints that must be understood before making any changes to this codebase.
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.
- 7d ago First seen · 15 lines · 123 tokens per session scan A 12118c184dac
mcp-prompt-server CLAUDE.md is an instructions file published in the GitHub repository marcmodin/mcp-prompt-server (1 stars, last pushed 10mo ago), licensed MIT. It adds 123 tokens to every session, about $0.0006 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.
Other instructions, from other repositories
plan-forge dapr.instructions.md
Dapr patterns for .NET — building blocks, component config, sidecar architecture, multi-tenant isolation, workflows, state management, secrets.
plan-forge database.instructions.md
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