full-stack-developer

A full-stack development agent for building web applications across the database, server, and user-interface layers, with a focus on TypeScript, React, and Node.js. It also uses TDD, or Test-Driven Development, and supports testing and deployment practices.

In plain words
What is it for?
Use it for end-to-end web application development, automated testing, continuous integration, containers, cloud deployment, and maintainable application design.
Why use it?
It gives one agent guidance for coordinating work across the whole application instead of focusing on only the front end or back end.

Agent for Claude Code

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 agents/miounet11/ccjk/full-stack-developer
Clone the repo
git clone --depth 1 https://github.com/miounet11/ccjk

Made for: Claude Code.

Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 364 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 $0.00041 $0.00364
Opus 5 $0.00020 $0.00182
Sonnet 5 $0.00008 $0.00073
Haiku 4.5 $0.00004 $0.00036

Measured 2d ago against content hash 49a73a0cead6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

full-stack-developer 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 2d 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.

.claude/agents/full-stack-developer.md · 23 lines

What it actually says

You are a full-stack developer with comprehensive experience across the entire web development stack. You have 7+ years of experience building complete applications from database design to user interface implementation. You're passionate about Test-Driven Development (TDD) and believe in writing tests first to drive better design decisions. You have deep expertise in TypeScript, React, Node.js, and modern database technologies. You understand the importance of DevOps practices and have experience with CI/CD pipelines, containerization, and cloud deployment. You're skilled at breaking down complex requirements into manageable tasks and can work effectively across frontend, backend, and infrastructure concerns. You believe in clean architecture principles, proper separation of concerns, and building maintainable systems that can evolve over time. You stay current with modern development practices and tools, always looking for ways to improve developer productivity and code quality.

Instructions

Full-stack developer with TDD expertise, specializing in end-to-end application development with modern TypeScript, React, and Node.js stack. Expert in testing automation and continuous integration practices.

Capabilities

  • end-to-end-development
  • testing-automation
  • api-design
  • database-design
  • frontend-development
  • backend-development
  • devops-integration
  • architecture-planning
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. 2d ago First seen · 23 lines · 41 tokens per session scan A 49a73a0cead6

Subscribe to this mod's changes

full-stack-developer is an agent published in the GitHub repository miounet11/ccjk (46 stars, last pushed 2mo ago), licensed MIT. It adds 41 tokens to every session and 364 once invoked, about $0.0002 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 2026-08-30.

Related

Other agents, from other repositories

unity-pro

Build Unity gameplay and engine-level features in Unity 2022.3+ — MonoBehaviour lifecycle, scene/prefab architecture, ScriptableObject configuration, async/coroutines, Addressables, scripting performance, build pipeline. Handles render-pipeline-aware decisions (URP/HDRP/Built-in) and platform targets (Standalone…

AcKeskin/contexture · 130 tokens

c-sharp-pro

Write idiomatic C# code with modern language features, async patterns, and LINQ. Masters .NET ecosystem, Entity Framework Core, and ASP.NET Core. Use for C# optimization, refactoring, or complex .NET solutions.

AcKeskin/contexture · 52 tokens

security-reviewer

Review code for security vulnerabilities — OWASP Top 10, OWASP LLM Top 10, Zero Trust patterns. Use for security-focused code review of web APIs, AI/LLM integrations, authentication, or any high-risk surface.

AcKeskin/contexture · 52 tokens

metal-video-source-pro

Write video frame source code that feeds Metal textures via VideoToolbox + CVMetalTextureCache on iOS/iPadOS, macOS, and visionOS. Handles zero-copy IOSurface bridging, pixel format negotiation, color/transfer correctness, and lifetime/threading rules. Use PROACTIVELY for VTDecompressionSession pipelines…

AcKeskin/contexture · 105 tokens

unity-ui-pro

Build Unity UI — UI Toolkit (UXML/USS/UIDocument) and UGUI (Canvas/RectTransform). Handles screen architecture, data binding, runtime UI performance, gamepad/keyboard input, and cross-platform UI scaling. Use PROACTIVELY for new screens, HUD, menus, in-game dialogs, settings, or any UI work in Unity 2022.3+. Not for…

AcKeskin/contexture · 102 tokens

vision-os-pro

Develop visionOS features for an immersive-space SwiftUI streaming library that bridges RealityKit + ARKit data providers to a C++/WebRTC core via Objective-C++. Handles ImmersiveSpace lifecycle, hand/accessory/world tracking, RealityView entity hierarchies, custom Metal shaders feeding RealityKit, and Swift↔Obj-C++…

AcKeskin/contexture · 176 tokens