Alex_Plug_In: Agent for Claude Code

.github/agents/alex-backend.agent.md

Backend is an agent for Claude Code from fabioc-aloha/Alex_Plug_In. It costs 21 tokens per session (1,436 once invoked), scanned A, original, no licence file.

An agent mode for developing Python APIs with FastAPI, Pydantic, and Azure data services. An API is a way for software systems to communicate, and Azure is Microsoft's cloud platform.

In plain words
What is it for?
Use it to build or plan Python APIs, validate API data, and work with Azure data services.
Why use it?
It gives backend development work a focused mode around these Python and Azure tools.

Agent for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: model in frontmatter.

This is fabioc-aloha/Alex_Plug_In's own configuration. It tells Claude Code how to work on Alex_Plug_In itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Alex_Plug_In configures →

Reuse

Borrowing it

Nothing to install: this file belongs to fabioc-aloha/Alex_Plug_In. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/fabioc-aloha/Alex_Plug_In/main/.github/agents/alex-backend.agent.md
Clone the repo
git clone --depth 1 https://github.com/fabioc-aloha/Alex_Plug_In

Made for: Claude Code.

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 Backend

README.md
[![agentmods](https://agentmods.dev/badge/agents/fabioc-aloha/alex_plug_in/alex-backend.svg)](https://agentmods.dev/agents/fabioc-aloha/alex_plug_in/alex-backend)
Your own site
<a href="https://agentmods.dev/agents/fabioc-aloha/alex_plug_in/alex-backend"><img src="https://agentmods.dev/badge/agents/fabioc-aloha/alex_plug_in/alex-backend.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,436 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 unknown 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 $0.00021 $0.01436
Opus 5 $0.00010 $0.00718
Sonnet 5 $0.00004 $0.00287
Haiku 4.5 $0.00002 $0.00144

Measured 8d ago against content hash ad9aed9111b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

Backend 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.

.github/agents/alex-backend.agent.md · 233 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 · 233 lines · 21 tokens per session scan A ad9aed9111b1

Subscribe to this mod's changes

Backend is an agent published in the GitHub repository fabioc-aloha/Alex_Plug_In (5 stars, last pushed 4mo ago), with no licence file. It adds 21 tokens to every session and 1,436 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 2026-08-31.