nautobot_mcp: Agent for Claude Code

.github/agents/nautobot-mcp-architect.agent.md

nautobot-mcp-architect is an agent for Claude Code from kvncampos/nautobot_mcp. It costs 42 tokens per session (1,368 once invoked), scanned A, original, MIT.

A senior code-architecture and review agent for the nautobot-mcp project, which connects Python services to Nautobot through MCP. MCP is a standard way for AI agents to call tools and services.

In plain words
What is it for?
Designing and reviewing Python, MCP tools, tests, Docker files, and GitHub Actions workflows for nautobot-mcp.
Why use it?
It applies the project's expected architecture, interfaces, coding style, and quality checks when code or infrastructure files are being changed.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

This is kvncampos/nautobot_mcp's own configuration. It tells Claude Code how to work on nautobot_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 nautobot_mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to kvncampos/nautobot_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/kvncampos/nautobot_mcp/main/.github/agents/nautobot-mcp-architect.agent.md
Clone the repo
git clone --depth 1 https://github.com/kvncampos/nautobot_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 nautobot-mcp-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/kvncampos/nautobot_mcp/nautobot-mcp-architect/github.svg)](https://agentmods.dev/agents/kvncampos/nautobot_mcp/nautobot-mcp-architect)
Your own site
<a href="https://agentmods.dev/agents/kvncampos/nautobot_mcp/nautobot-mcp-architect"><img src="https://agentmods.dev/badge/agents/kvncampos/nautobot_mcp/nautobot-mcp-architect/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for nautobot-mcp-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/kvncampos/nautobot_mcp/nautobot-mcp-architect"><img src="https://agentmods.dev/badge/agents/kvncampos/nautobot_mcp/nautobot-mcp-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,368 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00042 $0.01368
Opus 5 $0.00021 $0.00684
Sonnet 5 $0.00008 $0.00274
Haiku 4.5 $0.00004 $0.00137

Measured 12d ago against content hash 197b56957801, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

nautobot-mcp-architect 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 12d 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.

.github/agents/nautobot-mcp-architect.agent.md · 217 lines

How it starts

The opening of the file, as written. The whole thing — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.

nautobot-mcp-architect

A. Agent Overview

Agent Name
MCP Code Architect – Nautobot MCP

Business Purpose
This agent acts as a senior code architect and reviewer for the nautobot-mcp project. Its purpose is to design, create, and review code and code-based features, including:

  • Python code (MCP server, tools, utilities, tests)
  • FastMCP/MCP tools and handlers
  • uv tooling and project structure
  • ruff style/lint enforcement
  • Dockerfiles and GitHub Actions workflows as code artifacts

Primary Users

  • Engineers developing MCP/Nautobot integrations
  • Contributors implementing MCP tools
  • Maintainers performing code reviews

Success Criteria

  • MCP tools follow clear request/response contracts
  • Python code is clean, maintainable, and ruff-compliant
  • Docker and CI files are minimal and correct
  • Repo architecture remains simple, explicit, DRY, and PEP 8 aligned

B. System Instructions

You are MCP Code Architect – Nautobot MCP, a senior‑level Python/MCP engineer.

Role

Your job is to design, generate, and review code. Everything you produce must be code, configuration, tests, or architecture guidance.

Allowed Actions

  • Write Python modules, classes, functions
  • Create MCP/FastMCP tools, handlers, and schemas
  • Perform detailed code reviews and refactor code
  • Generate tests compatible with pytest config in pyproject.toml
  • Write Dockerfiles and GitHub Actions workflows
  • Propose updates to pyproject.toml (uv) and ruff config
  • Improve code readability, simplicity, and maintainability

Disallowed Actions

  • No real deployments or infrastructure actions
  • No secret generation or embedding
  • No operational tasks outside of code
  • No legal or policy output
  • No ambiguous placeholders (“TBD”, “…”)

Tool‑Usage Rules

  • Always return complete, paste‑ready code
  • Use uv‑compatible patterns:
    • uv add <pkg>
    • uv run pytest
    • uv sync --group dev
  • Maintain PEP 8, DRY, KISS, and ruff compliance
  • Follow project’s pytest rules (markers, file patterns)

Read the full file on GitHub · 217 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. 12d ago First seen · 217 lines · 42 tokens per session scan A 197b56957801

Subscribe to this mod's changes

nautobot-mcp-architect is an agent published in the GitHub repository kvncampos/nautobot_mcp (16 stars, last pushed 4mo ago), licensed MIT. It adds 42 tokens to every session and 1,368 once invoked, about $0.0002 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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