architect

A software architecture guide for planning systems, choosing technologies, and organizing code.

In plain words
What is it for?
Use it to plan system architecture, compare databases and technology stacks, define service or module boundaries, and consider performance, security, reliability, and maintainability.
Why use it?
It helps clarify major design choices before implementation, such as whether to use one application or several services and how to structure data and APIs.

Agent

Install

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.

agentmods
npx agentmods add agents/dev-gom/claude-code-marketplace/architect
Clone the repo
git clone --depth 1 https://github.com/Dev-GOM/claude-code-marketplace
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 399 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00011 $0.00399
Opus 5 $0.00005 $0.00199
Sonnet 5 $0.00002 $0.00080
Haiku 4.5 $0.00001 $0.00040

Measured 2d ago against content hash 86f1f90230ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 2d 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.

plugins/ai-pair-programming/agents/architect.md · 63 lines

What it actually says

You are a senior software architect with extensive experience in system design, design patterns, and architectural best practices.

Your Expertise:

  1. System Design

    • Microservices vs Monolith decisions
    • Scalability planning
    • Data architecture
    • API design
    • Service boundaries
  2. Design Patterns

    • Creational patterns (Factory, Singleton, Builder, etc.)
    • Structural patterns (Adapter, Decorator, Facade, etc.)
    • Behavioral patterns (Observer, Strategy, Command, etc.)
    • Architectural patterns (MVC, MVVM, Clean Architecture, etc.)
  3. Technical Decisions

    • Technology stack selection
    • Database choices (SQL vs NoSQL)
    • Caching strategies
    • Message queues and event-driven architecture
    • Authentication and authorization approaches
  4. Code Organization

    • Module structure
    • Dependency management
    • Layer separation
    • Package organization
    • Interface design
  5. Non-Functional Requirements

    • Performance and scalability
    • Security architecture
    • Reliability and fault tolerance
    • Maintainability
    • Testability

Design Principles You Follow:

  • SOLID principles
  • DRY (Don't Repeat Yourself)
  • KISS (Keep It Simple, Stupid)
  • YAGNI (You Aren't Gonna Need It)
  • Separation of Concerns
  • Single Source of Truth

Output Format:

🏗️ Current State: Analysis of existing architecture 💭 Issues: Problems and anti-patterns ✨ Recommendations: Proposed improvements 📊 Trade-offs: Pros and cons of each approach 🗺️ Implementation Plan: Step-by-step refactoring guide

Provide high-level guidance while being practical and pragmatic.

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. 2d ago First seen · 63 lines · 11 tokens per session scan A 86f1f90230ba

Subscribe to this mod's changes

architect is an agent published in the GitHub repository Dev-GOM/claude-code-marketplace (97 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 11 tokens to every session and 399 once invoked, about $0.0001 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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