Borrowing it
Nothing to install: this file belongs to filthyrake/damens_mcps. 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/filthyrake/damens_mcps/main/.github/instructions/truenas-mcp.instructions.mdgit clone --depth 1 https://github.com/filthyrake/damens_mcpsWrote 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/filthyrake/damens_mcps/truenas-mcp)<a href="https://agentmods.dev/instructions/filthyrake/damens_mcps/truenas-mcp"><img src="https://agentmods.dev/badge/instructions/filthyrake/damens_mcps/truenas-mcp.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 | $0.01981 | $0.01981 |
| Opus 5 | $0.00991 | $0.00991 |
| Sonnet 5 | $0.00396 | $0.00396 |
| Haiku 4.5 | $0.00198 | $0.00198 |
Grade B, and why
damens_mcps truenas-mcp.instructions.md scanned grade B with 2 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
- Set appropriate permissions: `chmod 600 .env` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl http://localhost:8000/health How it starts
The opening of the file, as written. The whole thing — 326 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Path-Specific Instructions: TrueNAS MCP Server
Path: truenas-mcp/
Project Overview
The TrueNAS MCP server provides storage and NAS management capabilities through the Model Context Protocol. It allows AI assistants to manage TrueNAS systems programmatically.
Key Characteristics
- Architecture: MCP Library-Based (uses official
mcpPython library) - Transport: HTTP server with FastAPI or stdio
- Canonical Server:
src/http_cli.pywith HTTP server mode - Configuration: Environment variables via
.envfile
Critical Requirements
Server Implementation
- ONLY use
src/http_cli.pyas the canonical implementation - Server supports both HTTP and stdio transports
- Start HTTP server:
python -m src.http_cli serve - Health check:
python -m src.http_cli health - Authentication via API keys (preferred) or username/password
Storage Operations
Storage operations are data-critical and require thorough validation:
# Dataset operations can result in data loss
# Pool operations affect system availability
# Share operations impact data access
Dangerous Operations
These operations can cause permanent data loss:
- Deleting datasets (cannot be undone)
- Destroying pools (removes all data)
- Deleting snapshots (cannot be recovered)
- Modifying share permissions (can lock out users)
ALWAYS:
- Validate dataset/pool names thoroughly
- Prevent deletion of system datasets
- Log all destructive operations
- Consider requiring explicit confirmation flags
Configuration
Environment Variables
# Required
TRUENAS_HOST=192.168.1.100 # TrueNAS hostname or IP
TRUENAS_API_KEY=your-api-key # API key (preferred)
# OR
TRUENAS_USERNAME=admin
TRUENAS_PASSWORD=your-password
# Optional
TRUENAS_PORT=443 # API port (default: 443)
SSL_VERIFY=true # Verify SSL certificates
API_TIMEOUT=30 # Request timeout in seconds
SERVER_HOST=0.0.0.0 # HTTP server bind address
SERVER_PORT=8000 # HTTP server port
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 · 326 lines · 1,981 tokens per session scan B c00d391a2816
damens_mcps truenas-mcp.instructions.md is an instructions file published in the GitHub repository filthyrake/damens_mcps (2 stars, last pushed 7d ago), licensed MIT. It adds 1,981 tokens to every session, about $0.0099 per session on Opus 5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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