development

development is a skill for Claude Code from fatihkan/badi. It costs 57 tokens per session (3,027 once invoked), scanned A, original, MIT.

A broad set of software development procedures, especially for web applications and their supporting services. It covers frontend frameworks such as React and Vue, backend services and APIs, databases, architecture, and delivery automation.

In plain words
What is it for?
Use it to build user interfaces, server-side logic, REST or GraphQL APIs, database structures, service architectures, and automated build and deployment steps.
Why use it?
It helps structure common development work instead of treating each application as a separate problem. It also addresses concerns such as performance, accessibility, API design, and maintainability.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions Claude Code.

Part of the badi plugin — 81 skills, 86 commands, 30 agents, 7 hooks shipped together

Good fit Use it to build user interfaces, server-side logic, REST or GraphQL APIs, database structures, service architectures, and automated build and deployment steps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fatihkan/badi/development
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.

Any agent
npx skills add fatihkan/badi --skill development
Clone the repo
git clone --depth 1 https://github.com/fatihkan/badi

Made for: Claude Code.

Or install badi, the plugin that ships this one along with the rest of its 81 skills, 86 commands, 30 agents, 7 hooks.

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 development

README.md
[![agentmods](https://agentmods.dev/badge/skills/fatihkan/badi/development.svg)](https://agentmods.dev/skills/fatihkan/badi/development)
Your own site
<a href="https://agentmods.dev/skills/fatihkan/badi/development"><img src="https://agentmods.dev/badge/skills/fatihkan/badi/development.svg" alt="Measured on agentmods" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,027 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 $0.00057 $0.03027
Opus 5 $0.00028 $0.01514
Sonnet 5 $0.00011 $0.00605
Haiku 4.5 $0.00006 $0.00303

Measured today against content hash d4dc5c68e7d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

development 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 today.

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.

.claude/skills-vault/development/SKILL.md · 499 lines

How it starts

The opening of the file, as written. The whole thing — 499 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Software Development Skills

98 structured procedures

Skill List

frontend-development

The modern frontend development skill. Builds performant, user-friendly web apps with frameworks like React, Vue, and Angular.


backend-development

The server-side development skill. Builds solid backend systems with API design, database integration, and business logic.


rest-api-design

The RESTful API design and documentation skill. Builds standards-compliant APIs with resource modeling, HTTP methods, and error handling.


graphql-api

The GraphQL API design and development skill. Builds a flexible data-query layer with schema definitions, resolvers, and performance optimization.


database-design

The database schema and architecture design skill. Runs normalization, indexing, and performance optimization for relational and NoSQL databases.


microservice-architecture

The microservice architecture design and implementation skill. Builds scalable systems with service decomposition, communication patterns, and orchestration.


ci-cd-pipeline

The CI/CD pipeline setup skill. Delivers fast, safe software delivery with automated build, test, and deploy steps.


docker-containers

The app packaging and deployment skill with Docker containers. Runs Dockerfile authoring, image optimization, and container orchestration.


kubernetes-management

The Kubernetes cluster management and app deployment skill. Delivers container orchestration with pod, service, deployment, and ingress configuration.


git-workflow

The git version-control workflow design skill. Delivers effective team collaboration with branching strategy, review process, and merge policies.


code-review

The code-review process design and execution skill. Runs effective reviews with checklists, feedback patterns, and quality standards.


unit-testing

The unit-test writing and management skill. Builds a reliable test suite with test strategy, test patterns, and coverage measurement.

Read the full file on GitHub · 499 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. today First seen · 499 lines · 0 tokens per session scan A d4dc5c68e7d6

Subscribe to this mod's changes

development is a skill published in the GitHub repository fatihkan/badi (7 stars, last pushed yesterday), licensed MIT. It adds 57 tokens to every session and 3,027 once invoked, about $0.0003 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 2026-09-06.

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