software-architecture

software-architecture is a skill for Claude Code, Codex from vladolaru/claude-code-plugins. It costs 51 tokens per session (1,448 once invoked), scanned A, original, MIT.

A software design guide for diagnosing tightly coupled code, unclear responsibilities, and designs that are difficult to test. It recommends suitable patterns such as SOLID, GoF, and hexagonal architecture when they fit.

In plain words
What is it for?
Use it to review code structure, choose between design patterns, and refactor responsibilities or dependencies. It is useful when code is rigid, hard to test, or difficult to extend.
Why use it?
It helps identify the underlying design problem before choosing a pattern, reducing refactoring based on guesswork. It also explains how to apply the chosen design change.

Skill for Claude CodeCodex

Part of the pirategoat-tools plugin — 22 skills shipped together

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 skills/vladolaru/claude-code-plugins/software-architecture
Any agent
npx skills add vladolaru/claude-code-plugins --skill software-architecture
Clone the repo
git clone --depth 1 https://github.com/vladolaru/claude-code-plugins

Made for: Claude Code, Codex.

Or install pirategoat-tools, the plugin that ships this one along with the rest of its 22 skills.

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 software-architecture

README.md
[![agentmods](https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/software-architecture.svg)](https://agentmods.dev/skills/vladolaru/claude-code-plugins/software-architecture)
Your own site
<a href="https://agentmods.dev/skills/vladolaru/claude-code-plugins/software-architecture"><img src="https://agentmods.dev/badge/skills/vladolaru/claude-code-plugins/software-architecture.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,448 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 $0.00051 $0.01448
Opus 5 $0.00026 $0.00724
Sonnet 5 $0.00010 $0.00290
Haiku 4.5 $0.00005 $0.00145

Measured yesterday against content hash cc0424faae5c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

software-architecture 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 yesterday.

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/pirategoat-tools/skills/software-architecture/SKILL.md · 118 lines

How it starts

The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill Directory

Resolve SKILL_DIR to the absolute directory containing this SKILL.md, as shown by the current host, before using any bundled path below. Before a shell command uses $SKILL_DIR, assign it in that command or replace it with the resolved path. It is not a host-exported environment variable.

Software Architect

You are a software architect advising on design decisions. Given a concrete problem — tight coupling, rigid designs, unclear responsibilities, or hard-to-test code — you diagnose the root cause, recommend the right pattern, and guide implementation.

Workflow

  1. Diagnose — Identify the code smell or design pressure. Read the relevant code. Name the specific symptom.
  2. Route — Use the routing table below to find the right reference. Read ONLY the specified sections.
  3. Recommend — Propose the pattern that fits the problem forces. If no pattern fits, say so — not every problem needs a pattern.
  4. Implement — Guide the refactoring. Show before/after code.

Solve the concrete problem presented. Do not propose additional refactoring or patterns beyond what the problem requires.

SOLID Principles (Quick Reference)

Principle Violation Symptom
Single Responsibility Changes in one feature require modifying the class
Open/Closed Adding features requires changing existing code
Liskov Substitution Conditional checks for specific subtypes
Interface Segregation Clients depend on methods they don't use
Dependency Inversion High-level logic directly instantiates low-level classes

Deep dive: solid-principles.md

Code Smell → Pattern Routing

Read ONLY the specified sections from the reference file. Do NOT read full files.

Patterns with Reference Files

Code Smell / Symptom Reference File Sections to Read
Switch/if-else chains on types $SKILL_DIR/patterns/behavioral/strategy.md ## Quick Reference + ## When to Use + ## When NOT to Use + ## Common Mistakes
Direct instantiation of dependencies $SKILL_DIR/patterns/creational/dependency-injection.md ## The Core Problem + ## Dependency Injection - The Solution
Complex object creation, long constructor $SKILL_DIR/patterns/creational/factory.md ## Overview + ## The Problem + ## Factory Method (first 100L)
Business logic mixed with infrastructure $SKILL_DIR/patterns/architectural/hexagonal-architecture.md ## Overview + ## When to Use Hexagonal Architecture + ## Structure (first 100L)
Deep inheritance hierarchy, rigid hierarchy $SKILL_DIR/patterns/structural/decorator.md ## Intent + ## Problem + ## Solution + ## When to Use
Complex subsystem exposed to clients $SKILL_DIR/patterns/structural/facade.md ## The Core Problem + ## What is Facade? + ## When to Use Facade
Algorithm steps fixed, details vary $SKILL_DIR/patterns/behavioral/template-method.md ## Intent + ## Motivation + ## When to Use Template Method
Need to encapsulate requests for undo/queue $SKILL_DIR/patterns/behavioral/command.md ## Overview + ## When to Use + ## When NOT to Use

Read the full file on GitHub · 118 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. yesterday First seen · 118 lines · 51 tokens per session scan A cc0424faae5c

Subscribe to this mod's changes

software-architecture is a skill published in the GitHub repository vladolaru/claude-code-plugins (8 stars, last pushed yesterday), licensed MIT. It adds 51 tokens to every session and 1,448 once invoked, about $0.0003 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 2026-09-03.

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