# Dart Best Practices

> |-

- **Type:** Skill
- **Install:** `agentstack add skill-mdazadhossain95-flutter-agent-skills-dart-best-practices`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [mdazadhossain95](https://agentstack.voostack.com/s/mdazadhossain95)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [mdazadhossain95](https://github.com/mdazadhossain95)
- **Source:** https://github.com/mdazadhossain95/flutter-agent-skills/tree/main/tool/dart_skills_lint/.agents/skills/dart-best-practices

## Install

```sh
agentstack add skill-mdazadhossain95-flutter-agent-skills-dart-best-practices
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Dart Best Practices

## 1. When to use this skill
Use this skill when:
-   Writing or reviewing Dart code.
-   Looking for guidance on idiomatic Dart usage.

## 2. Best Practices

### Multi-line Strings
Prefer using multi-line strings (`'''`) over concatenating strings with `+` and
`\n`, especially for large blocks of text like SQL queries, HTML, or
PEM-encoded keys. This improves readability and avoids
`lines_longer_than_80_chars` lint errors by allowing natural line breaks.

**Avoid:**
```dart
final pem = '-----BEGIN RSA PRIVATE KEY-----\n' +
    base64Encode(fullBytes) +
    '\n-----END RSA PRIVATE KEY-----';
```

**Prefer:**
```dart
final pem = '''
-----BEGIN RSA PRIVATE KEY-----
${base64Encode(fullBytes)}
-----END RSA PRIVATE KEY-----''';
```

### Line Length
Avoid lines longer than 80 characters, even in Markdown files and comments.
This ensures code is readable in split-screen views and on smaller screens
without horizontal scrolling.

**Prefer:**
Target 80 characters for wrapping text. Exceptions are allowed for long URLs
or identifiers that cannot be broken.

## Related Skills

- **[dart-modern-features]**: For idiomatic
  usage of modern Dart features like Pattern Matching (useful for deep JSON
  extraction), Records, and Switch Expressions.

[dart-modern-features]: https://github.com/kevmoo/dash_skills/blob/main/.agent/skills/dart-modern-features/SKILL.md

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [mdazadhossain95](https://github.com/mdazadhossain95)
- **Source:** [mdazadhossain95/flutter-agent-skills](https://github.com/mdazadhossain95/flutter-agent-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-mdazadhossain95-flutter-agent-skills-dart-best-practices
- Seller: https://agentstack.voostack.com/s/mdazadhossain95
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.