Senior Backend

What it does

When your agent uses it

• Optimizing database queries
• Implementing business logic
• Handling authentication/authorization
• Reviewing backend code

Example prompts

• “/senior-backend”

Requirements

• Python 3
• Node.js
• Docker

Workflow steps

6 steps, taken from the step headings in SKILL.md.

1. 1Api Scaffolder
2. 2Database Migration Tool
3. 3Api Load Tester
4. 4Setup and Configuration
5. 5Run Quality Checks
6. 6Implement Best Practices

What it can do on your machine

Read from SKILL.md and the folder at commit c0ca7da. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 3 files in scripts/ (Python), which the agent can run.

  Shell commands in SKILL.md call:

  • python
  • npm
  • pip
  • docker
  • docker-compose
  • kubectl

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md. Its commands use npm, pip, docker and kubectl, which can reach the network depending on how they are called.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Senior Backend loads about 1.1k tokens when it runs, and up to ~2.3k if it reads all its reference files. Until then it costs about 101 tokens; SKILL.md has 302 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~101

When it runs · the whole SKILL.md, loaded when a task matches

~1.1k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~2.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

• NoteMentions a .env fileSKILL.md:126

  cp .env.example .env

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from davila7/claude-code-templates at commit c0ca7da, republished under its MIT licence (© davila7). 302 words, ~1,136 tokens.

name

senior-backend

description

Comprehensive backend development skill for building scalable backend systems using NodeJS, Express, Go, Python, Postgres, GraphQL, REST APIs. Includes API scaffolding, database optimization, security implementation, and performance tuning. Use when designing APIs, optimizing database queries, implementing business logic, handling authentication/authorization, or reviewing backend code.

# Script 1: Api Scaffolder
python scripts/api_scaffolder.py [options]

# Script 2: Database Migration Tool
python scripts/database_migration_tool.py [options]

# Script 3: Api Load Tester
python scripts/api_load_tester.py [options]

python scripts/api_scaffolder.py <project-path> [options]

python scripts/database_migration_tool.py <target-path> [--verbose]

python scripts/api_load_tester.py [arguments] [options]

# Install dependencies
npm install
# or
pip install -r requirements.txt

# Configure environment
cp .env.example .env

# Use the analyzer script
python scripts/database_migration_tool.py .

# Review recommendations
# Apply fixes

# Development
npm run dev
npm run build
npm run test
npm run lint

# Analysis
python scripts/database_migration_tool.py .
python scripts/api_load_tester.py --analyze

# Deployment
docker build -t app:latest .
docker-compose up -d
kubectl apply -f k8s/

© davila7, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 6 other files (scripts, references) in cli-tool/components/skills/development/senior-backend of davila7/claude-code-templates.

• SKILL.md
• references/api_design_patterns.md
• references/backend_security_practices.md
• references/database_optimization_guide.md
• scripts/api_load_tester.py
• scripts/api_scaffolder.py
• scripts/database_migration_tool.py

Open the folder on GitHubat commit c0ca7da

Used in 1 other repository

We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in davila7/claude-code-templates, which our catalogue first saw on October 7, 2026.

• aiskillstore/marketplaceskills/davila7/senior-backendskills/alirezarezvani/senior-backend