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/procload/dnd-mcp/claude-mdgit clone --depth 1 https://github.com/procload/dnd-mcpWrote 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/procload/dnd-mcp/claude-md)<a href="https://agentmods.dev/instructions/procload/dnd-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/procload/dnd-mcp/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 | $0.00216 | $0.00216 |
| Opus 5 | $0.00108 | $0.00108 |
| Sonnet 5 | $0.00043 | $0.00043 |
| Haiku 4.5 | $0.00022 | $0.00022 |
Grade A, and why
dnd-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 4d 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
DND-MCP Development Guide
Commands
- Run server:
uv run python dnd_mcp_server.py - Run tests:
uv run python simple_fastmcp_test.py - Install dependencies:
uv pip install -r requirements.txt
Code Style
- Imports: Group imports: standard library, third-party, local
- Formatting: 4-space indentation, max line length ~100 chars
- Types: Use typing hints (
from typing import List, Dict, Any, Optional) - Error handling: Use try/except with specific exceptions and logging
- Logging: Use Python's logging module with appropriate levels
- Documentation: Docstrings for all functions/classes following Google style
- Variable naming: snake_case for variables/functions, UPPER_CASE for constants
Architecture
- MCP server using FastMCP framework
- Resources for D&D API access with persistent caching
- Handle API failures gracefully with informative error messages
- Use async/await patterns for concurrent operations
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.
- 4d ago First seen · 21 lines · 216 tokens per session scan A 07d3aa94e52d
dnd-mcp CLAUDE.md is an instructions file published in the GitHub repository procload/dnd-mcp (48 stars, last pushed 1y ago), licensed MIT. It adds 216 tokens to every session, about $0.0011 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 2026-08-30.
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