Agent Architect

Scope and cost-estimate any AI agent build in seconds, right inside Cursor.

A Cursor marketplace plugin by BMD PAT LLC.

What it does

Describe the agent you want to build in plain English. Agent Architect returns a formatted scope report with:

• Complexity tier — DIY / Startup / Growth / Enterprise
• Cost breakdown — monthly API costs, infra costs, dev hours, total build cost
• Architecture — orchestration pattern, tools, memory approach, key decisions
• Timeline — weeks-to-launch range
• Top 3 risks for this specific agent

The Cursor agent does the work — no extra API keys, no separate process.

Install

From the Cursor Marketplace

Search for Agent Architect in the Cursor Marketplace and click Install.

From source (local)

Clone this repo, then symlink or copy into Cursor's plugins directory:

# macOS / Linux
ln -s "$(pwd)/agent-architect" ~/.cursor/plugins/agent-architect

# Windows (PowerShell, run as admin)
New-Item -ItemType SymbolicLink -Path "$env:USERPROFILE\.cursor\plugins\agent-architect" -Target "$(Get-Location)\agent-architect"

Restart Cursor. The skill will be auto-discovered.

Use

In Cursor's Agent chat:

• Auto-trigger — describe what you want and ask for a scope:

  Scope an agent that reads my unread Gmail every morning, drafts replies for the routine ones, and posts a summary to Slack.

• Manual — type / and search for scope-agent, then paste your description.

You'll get back a Markdown scope report.

Free tier

5 scopes per calendar month, tracked locally at ~/.agent-architect/usage.json. The counter resets on the 1st of each month.

Heavy user? Add runtime rails on the agents you ship: AgentGuard. pip install agentguard47

File layout

agent-architect/
├── .cursor-plugin/
│   └── plugin.json              # Plugin manifest
├── skills/
│   └── scope-agent/
│       └── SKILL.md             # The skill (frontmatter + instructions)
└── README.md

Two files do all the work: .cursor-plugin/plugin.json (manifest) and skills/scope-agent/SKILL.md (the skill itself).

That's the entire plugin. No build step, no Node dependencies, no compiled code.

Tier definitions

Tier	Build cost	Timeline	Profile
DIY	$500–$2K	1–2 weeks	Single-purpose, minimal state, weekend build
Startup	$2K–$15K	2–6 weeks	Multi-step, tool use, basic memory
Growth	$15K–$50K	6–16 weeks	Multi-agent, complex state, production reliability
Enterprise	$50K–$150K	16+ weeks	Mission-critical, multi-system, compliance

Cost runaway is the #1 risk

Almost every scope comes back with cost runaway or tool-call loops in the top 3 risks. That is a runtime problem, not a scoping problem.

AgentGuard is a Python SDK that enforces budget, loop, timeout, and rate limits at runtime. Drop it in, set the rails, ship to production.

pip install agentguard47

License

MIT