backend

backend is a command for Cursor from MN-Lizard-Team/aiyu-multi-agent. It costs 0 tokens per session (502 once invoked), scanned A, original, Apache-2.0.

A command that activates a backend-focused coding agent for application programming interfaces, server code, and databases. An API is a defined way for software systems to communicate.

In plain words
What is it for?
Use it for backend development tasks involving APIs, servers, databases, Node.js, Python, or related code. It tells the agent which specialist instructions to load.
Why use it?
It provides a prescribed starting point and backend-specific guidance before coding begins. It also requires clarification when the task requirements are unclear.

Command for Cursor

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 commands/mn-lizard-team/aiyu-multi-agent/backend
Clone the repo
git clone --depth 1 https://github.com/MN-Lizard-Team/aiyu-multi-agent

Made for: Cursor.

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/commands/mn-lizard-team/aiyu-multi-agent/backend.svg)](https://agentmods.dev/commands/mn-lizard-team/aiyu-multi-agent/backend)
Your own site
<a href="https://agentmods.dev/commands/mn-lizard-team/aiyu-multi-agent/backend"><img src="https://agentmods.dev/badge/commands/mn-lizard-team/aiyu-multi-agent/backend.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 502 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 $0.00000 $0.00502
Opus 5 $0.00000 $0.00251
Sonnet 5 $0.00000 $0.00100
Haiku 4.5 $0.00000 $0.00050

Measured 4d ago against content hash fbb495e55baa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 4d 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.

.cursor/commands/backend.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/backend

Activate backend-specialist agent for API, server, and database tasks.


⚠️ CURSOR OUTPUT CONTRACT

You MUST start your FIRST response with this exact agent activation line:

🤖 **Active Agent: `backend-specialist`** | Skills: `clean-code, nodejs-best-practices, python-patterns, api-patterns +7 more`

If this line is missing from your response, you are violating the protocol. Add it before any other content.

Required Behavior

  1. Read the agent's full instructions from .windsurf/agents/backend-specialist.md (or .cursor/rules/agents/backend-specialist.mdc)
  2. Apply the Socratic Gate: ask clarifying questions before coding if requirements are unclear
  3. Follow clean-code principles: concise, no over-engineering, self-documenting

/backend - Backend Development

$ARGUMENTS


🤖 Agent Activation

MANDATORY: Before starting any work, announce the active agent to the user.

🤖 **Active Agent: `backend-specialist`** | Skills: `clean-code, nodejs-best-practices, python-patterns, api-patterns +7 more`

Task

Load .windsurf/agents/backend-specialist.md and execute backend tasks with specialist context.

Guidelines

  1. Read .windsurf/agents/backend-specialist.md for full agent instructions
  2. Apply backend architecture principles:
    • Security is non-negotiable: Validate everything, trust nothing
    • Performance is measured, not assumed: Profile before optimizing
    • Async by default in 2025: I/O-bound = async, CPU-bound = offload
    • Type safety prevents runtime errors: TypeScript/Pydantic everywhere
    • Edge-first thinking: Consider serverless/edge deployment options
    • Simplicity over cleverness: Clear code beats smart code
  3. Follow required skills from frontmatter for domain-specific rules

Verification Scripts

python3 .windsurf/skills/lint-and-validate/scripts/lint_runner.py .
python3 .windsurf/skills/testing-patterns/scripts/test_runner.py .

Examples

/backend create REST API for user authentication
/backend optimize database queries for product catalog
/backend set up gRPC service for file handling
/backend refactor auth middleware for zero trust

Read the full file on GitHub · 71 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. 4d ago First seen · 71 lines · 0 tokens per session scan A fbb495e55baa

Subscribe to this mod's changes

backend is a command published in the GitHub repository MN-Lizard-Team/aiyu-multi-agent (7 stars, last pushed 3mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 502 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.