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.
npx agentmods add instructions/marcmodin/mcp-prompt-server/agents-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/agents-md)<a href="https://agentmods.dev/instructions/marcmodin/mcp-prompt-server/agents-md"><img src="https://agentmods.dev/badge/instructions/marcmodin/mcp-prompt-server/agents-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 | $0.00251 | $0.00251 |
| Opus 5 | $0.00125 | $0.00125 |
| Sonnet 5 | $0.00050 | $0.00050 |
| Haiku 4.5 | $0.00025 | $0.00025 |
Grade A, and why
mcp-prompt-server AGENTS.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 5d 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
AGENTS.md
Agent instructions for working in this repository.
Quick Reference
Architecture: See docs/architecture.md for complete system design and security model.
Contributing: See docs/contributing.md for development workflow and contribution guidelines.
Run locally: uv run mcp-prompt-server
Run remotely: uvx --from git+https://github.com/marcmodin/mcp-prompt-server mcp-prompt-server
Debug locally: npx @modelcontextprotocol/inspector uv run mcp-prompt-server
Debug remotely: npx @modelcontextprotocol/inspector uvx --from git+https://github.com/marcmodin/mcp-prompt-server mcp-prompt-server
Key Constraints
- Python >=3.11, uses
uvfor dependency management - Prompt files must be in
prompts/with required YAML frontmatter (name, description) - Resource files must be in
resources/with required YAML frontmatter (name, description) - No symlinks allowed for security reasons
- Changes to markdown files require server restart
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.
- 5d ago First seen · 25 lines · 251 tokens per session scan A 551ceeec5cdf
mcp-prompt-server AGENTS.md is an instructions file published in the GitHub repository marcmodin/mcp-prompt-server (1 stars, last pushed 10mo ago), licensed MIT. It adds 251 tokens to every session, about $0.0013 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.
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