code

A prompt for generating implementation code from a clear specification. It asks the agent to follow the project's existing patterns and to produce readable, testable code with error handling.

In plain words
What is it for?
Use it when turning a plan into code, especially when you need small focused functions, conventional style, edge-case handling, and compatibility with an existing codebase.
Why use it?
It gives code generation a defined task, technology context, and quality requirements instead of leaving implementation choices implicit.

Skill for Claude CodeCodex

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 skills/dongduong2001/pudo-code-system/code
Any agent
npx skills add DongDuong2001/pudo-code-system --skill code
Clone the repo
git clone --depth 1 https://github.com/DongDuong2001/pudo-code-system

Made for: Claude Code, Codex.

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 422 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 $0.00422
Opus 5 $0.00000 $0.00211
Sonnet 5 $0.00000 $0.00084
Haiku 4.5 $0.00000 $0.00042

Measured 2d ago against content hash 2fe3366d2520, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code 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.

skills/code/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Software Engineering Code Skill

Skill, Coding, Implementation, Clean Code

Context

Use this prompt when you have a clear plan and need the AI to generate the actual implementation code. This skill enforces strict adherence to clean code principles, testability, and robust error handling.

Variables

  • {{specifications}}: The detailed requirements or steps for the code you need.
  • {{language_framework}}: The programming language and framework being used.
  • {{existing_patterns}}: Any established patterns in the codebase that the AI must follow.

Prompt

Adopt the persona of a Senior Software Engineer. I need you to write production-ready code based on the following specifications:

Specifications: 
{{specifications}}

Language/Framework: 
{{language_framework}}

Existing Codebase Patterns to Follow:
{{existing_patterns}}

Please generate the implementation code adhering to these principles:
1. **Clean & Idiomatic:** Use standard conventions for the language. Keep functions small and focused on a single responsibility (SOLID principles).
2. **Robust Error Handling:** Do not swallow errors. Handle edge cases gracefully and use appropriate error boundaries or exceptions.
3. **Testable:** Write code that can be easily unit tested. Use dependency injection where appropriate.
4. **Self-Documenting:** Use clear, descriptive variable and function names. Only add comments to explain *why* something complex is being done, not *what* it is doing.

Provide the complete code blocks, avoiding abbreviations where possible.

Example Usage

Input:

Adopt the persona of a Senior Software Engineer. I need you to write production-ready code based on the following specifications:

Specifications: 
Create a React hook `useDebounce` that delays updating a value until a specified time has passed since the last change.

Language/Framework: 
TypeScript, React 18

Existing Codebase Patterns to Follow:
Always use generic types for custom hooks. Ensure strict typing.

Please generate the implementation code adhering to these principles:
[...rest of prompt...]

Read the full file on GitHub · 52 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 52 lines · 0 tokens per session scan A 2fe3366d2520

Subscribe to this mod's changes

code is a skill published in the GitHub repository DongDuong2001/pudo-code-system (5 stars, last pushed 25d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 422 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.

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