gx-fastapi-review

gx-fastapi-review is a command for Claude Code from galaxyproject/claude-galaxy-plugins. It costs 0 tokens per session (161 once invoked), scanned A, original, MIT.

A Python code-review command that examines a working directory, commit, file list, or planning document. It also checks a specific rule for FastAPI, a Python web framework, in Galaxy projects.

In plain words
What is it for?
Reviewing Python changes in a directory or commit, checking selected Python files, and checking Python files named in a plan. It can also verify the Galaxy-specific FastAPI router rule.
Why use it?
It helps find review issues without manually gathering the changed files. It catches incorrect FastAPI router registration that could conflict with Galaxy's automatic router detection.

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 Reviewing Python changes in a directory or commit, checking selected Python files, and checking Python files named in a plan. It can also verify the Galaxy-specific FastAPI router rule.

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

README.md
[![agentmods](https://agentmods.dev/badge/commands/galaxyproject/claude-galaxy-plugins/gx-fastapi-review.svg)](https://agentmods.dev/commands/galaxyproject/claude-galaxy-plugins/gx-fastapi-review)
Your own site
<a href="https://agentmods.dev/commands/galaxyproject/claude-galaxy-plugins/gx-fastapi-review"><img src="https://agentmods.dev/badge/commands/galaxyproject/claude-galaxy-plugins/gx-fastapi-review.svg" alt="Measured on agentmods" 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 161 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 $0.00161
Opus 5 $0.00000 $0.00081
Sonnet 5 $0.00000 $0.00032
Haiku 4.5 $0.00000 $0.00016

Measured 8d ago against content hash afbc48990078, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

gx-fastapi-review 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 8d 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-fastapi-review.md · 13 lines

What it actually says

Perform a Python code review on the provided code. Accept input in any of 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)

Ensure the FastAPI layer follows Galaxy best practices (only one needs to be checked currently):

  • If there is a Python FastAPI layer, ensure we're not trying to include_router or register the router somehow like would typically be needed in FastAPI. We detect our routers automatically.

Galaxy has other best practices around keeping this layer thin and using type-based DI but other review commands can be used to check these.

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. 8d ago First seen · 13 lines · 0 tokens per session scan A afbc48990078

Subscribe to this mod's changes

gx-fastapi-review 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 161 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.