gx-review-business-logic-organization

gx-review-business-logic-organization is a command for Claude Code from galaxyproject/claude-galaxy-plugins. It costs 0 tokens per session (1,475 once invoked), scanned A, original, MIT.

A Python code-review command for projects that separate web requests, application services, business rules, and database access into layers. Controllers handle requests, services handle API details, managers hold business logic, and models mediate database work.

In plain words
What is it for?
Use it with a directory, commit, file list, or planning document to check whether Python code is placed in the appropriate layer.
Why use it?
It helps prevent business rules from being scattered through request handlers or tied too closely to web and database internals.

Command for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the gx-arch-review plugin — 12 commands shipped together

Good fit Use it with a directory, commit, file list, or planning document to check whether Python code is placed in the appropriate layer.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization
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.

Clone the repo
git clone --depth 1 https://github.com/galaxyproject/claude-galaxy-plugins

Made for: Claude Code.

Or install gx-arch-review, the plugin that ships this one along with the rest of its 12 commands.

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 gx-review-business-logic-organization

README.md
[![agentmods](https://agentmods.dev/badge/commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization/github.svg)](https://agentmods.dev/commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization)
Your own site
<a href="https://agentmods.dev/commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization"><img src="https://agentmods.dev/badge/commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization/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 gx-review-business-logic-organization

Your own site · 80×15
<a href="https://agentmods.dev/commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization"><img src="https://agentmods.dev/badge/commands/galaxyproject/claude-galaxy-plugins/gx-review-business-logic-organization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,475 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 $0.00000 $0.01475
Opus 5 $0.00000 $0.00737
Sonnet 5 $0.00000 $0.00295
Haiku 4.5 $0.00000 $0.00147

Measured 12d ago against content hash a1b557afb1f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

gx-review-business-logic-organization 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.

plugins/gx-arch-review/commands/gx-review-business-logic-organization.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review Galaxy Code for Controller/Service/Manager Best Practices

Perform a Python code review on the provided code. Accept input in any of the following forms:

  1. A working directory path (analyze git diff in that directory)
  2. A Git commit reference (analyze changes in that commit)
  3. A list of Python file paths (analyze those files)
  4. A planning document (analyze the Python files in the plan)

Review Criteria

Review the code and ensure it follows Galaxy best practices for what code belongs in controllers, services, and managers:

  1. Controllers should be thin - Minimal logic, just request/response handling
  2. Services handle API processing details - Shield application logic from FastAPI internals
  3. Managers contain business logic - All non-trivial operations should live here
  4. Models mediate database interactions - Isolate backend from database internals

Galaxy Three-Layer Architecture

┌─────────────────────────────────────────┐
│           API Controllers               │  ← Request/Response handling
│     (lib/galaxy/webapps/galaxy/api/)    │
├─────────────────────────────────────────┤
│              Services                   │  ← API processing details (thin layer)
│       (lib/galaxy/webapps/galaxy/       │
│            services/)                   │
├─────────────────────────────────────────┤
│              Managers                   │  ← Business logic
│         (lib/galaxy/managers/)          │
├─────────────────────────────────────────┤
│               Models                    │  ← Database interactions (SQLAlchemy ORM)
│          (lib/galaxy/model/)            │
├─────────────────────────────────────────┤
│             Database                    │
└─────────────────────────────────────────┘

Layer Responsibilities

Controllers (API Layer)

  • Parse request parameters
  • Call service/manager methods
  • Format responses
  • Handle HTTP-specific concerns

Anti-pattern:

# BAD - business logic in controller
@router.post("/api/histories")
def create_history(payload: CreateHistoryPayload):
    history = model.History()
    history.name = payload.name
    history.user = trans.user
    session.add(history)
    session.commit()
    # Lots of validation, side effects...
    return history

Read the full file on GitHub · 187 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 · 187 lines · 0 tokens per session scan A a1b557afb1f5

Subscribe to this mod's changes

gx-review-business-logic-organization is a command published in the GitHub repository galaxyproject/claude-galaxy-plugins (4 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,475 tokens. 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 2026-08-31.