# Code Generation

> edge cases, naming conventions, and documentation. Infers architectural patterns from context.

- Skill: `tools-only/code-generation` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add tools-only/code-generation`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tools-only/code-generation/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tools-only (https://skillmd.com/u/tools-only)
- Updated: 2026-09-29
- Page: https://skillmd.com/skills/tools-only/code-generation

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# Code Generation

**Opus**: Generates well-structured code with appropriate error handling,
edge cases, naming conventions, and documentation. Infers architectural
patterns from context.

**Haiku**: Generates functional code for straightforward tasks. Common
issues:
- Omits error handling unless explicitly requested
- May use inconsistent naming conventions
- Documentation/comments sparse unless requested
- Edge cases rarely handled proactively
- May not match the existing codebase style

**Mitigation**: Specify every non-obvious quality requirement.

```
Write a Python function that [task].

Requirements:
- Function signature: def process_data(input: list[dict]) -> dict
- Handle these edge cases: empty list, missing keys, non-string values
- Include type hints on all parameters and return value
- Add a docstring with Args, Returns, and Raises sections
- Use snake_case for variables
- Raise ValueError (not return None) for invalid input
- Include inline comments for non-obvious logic only
```

For code that must match existing style:
```
Match the coding style of this example:
[paste 10-20 lines of existing code]

Specifically match: indentation, naming convention, comment style,
error handling pattern, import style.
```

For complex code, decompose into functions:
"Write function A first. Then write function B that calls A.
Do not write a single monolithic function."