What is codebase-architecture?

A plugin containing guidance for software architecture, code style, and testing. Software architecture is how a codebase is organized and how its parts depend on one another.

Use it when reviewing a codebase's structure, coding practices, or testing approach.

It gives developers a shared basis for making code easier to maintain and test. The input does not describe more specific behaviors.

codebase-architecture — Plugin by Casper-Studios

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.

Claude Code

/plugin marketplace add Casper-Studios/casper-marketplace

agentmods

npx agentmods add plugins/casper-studios/casper-marketplace/codebase-architecture

Clone the repo

git clone --depth 1 https://github.com/Casper-Studios/casper-marketplace

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

codebase-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 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/engineering/codebase-architecture/.claude-plugin/plugin.json · 18 lines

What it actually says

{
  "name": "codebase-architecture",
  "version": "0.3.0",
  "description": "Architecture, code-style, and testing guidance for maintainable software.",
  "author": {
    "name": "Casper Studios"
  },
  "interface": {
    "displayName": "Codebase Architecture",
    "shortDescription": "Architecture, code-style, and testing guidance for maintainable software.",
    "longDescription": "Apply feature-oriented architecture, explicit code-style rules, and focused testing guidance.",
    "developerName": "Casper Studios",
    "category": "Productivity",
    "capabilities": [],
    "defaultPrompt": "Review this codebase architecture and recommend focused improvements."
  }
}

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.

2d ago First seen · 18 lines scan A 93e4c3e3a261

Subscribe to this mod's changes

codebase-architecture is a plugin published in the GitHub repository Casper-Studios/casper-marketplace (12 stars, last pushed 15d ago), licensed MPL-2.0. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.

Planning Testing

codebase-architecture

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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