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Agent skill

Flutter Retrofit Networking

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Build type-safe HTTP networking with Dio and Retrofit including auth interceptors in Flutter.

MITAuto-check passedMobile

Install Flutter Retrofit Networking

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill flutter-retrofit-networking -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard flutter-retrofit-networking --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/flutter/flutter-retrofit-networking .claude/skills/flutter-retrofit-networking && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
flutter-retrofit-networking
GitHub stars
572
Token cost
~561 tokens
SKILL.md length
177 words
Files
5 (incl. references)
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Build type-safe HTTP networking with Dio and Retrofit including auth interceptors in Flutter.

  • Works in 7 steps: Define Retrofit clients — Create… → Create DTOs — Use @freezed and… → Map to domain — Data sources must map… → …
  • Integrating REST APIs with Dio
  • SKILL.md covers Priority: P0 (CRITICAL), Structure, Implementation Workflow and Anti-Patterns, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Flutter Retrofit Networking is an agent skill from HoangNguyen0403/agent-skills-standard. Build type-safe HTTP networking with Dio and Retrofit including auth interceptors in Flutter. Use when integrating REST APIs with Dio or Retrofit.

Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `evals/evals.json`, `references/REFERENCE.md` and `references/implementation.md`).

It sits in Mobile, covering Cross-platform mobile apps, Type safety and REST APIs. It works with Flutter. The repository describes itself as: A collection of Agent Skills Standard and Best Practice for Programming Languages, Frameworks that help our AI Agent follow best practies on frameworks and programming laguages. The licence is MIT.

When your agent uses it

  • Integrating REST APIs with Dio
  • Tasks that involve Cross-platform mobile apps
  • Tasks that involve Type safety

Example prompts

  • “/flutter-retrofit-networking”

Workflow steps

7 steps, taken from the first numbered list in SKILL.md.

  1. Define Retrofit clients — Create abstract classes with @RestApi() and HTTP annotations (@GET, @POST). Methods return Future.
  2. Create DTOs — Use @freezed and @JsonSerializable for all request/response bodies.
  3. Map to domain — Data sources must map DTOs to Domain Entities (e.g., userDto.toDomain()).
  4. Guard enums — Always use @JsonKey(unknownEnumValue: Status.unknown) to prevent crashes from new backend values.
  5. Add auth interceptor — Inject Authorization: Bearer in onRequest.
  6. Handle token refresh — On 401, lock Dio, call refreshToken(), update stored token, retry via dio.fetch(err.requestOptions).
  7. Map failures — Convert DioException to typed Failure objects (ServerFailure, NetworkFailure).

What it can do on your machine

Read from SKILL.md and the folder at commit b529c2d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Flutter Retrofit Networking loads about 561 tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 44 tokens; SKILL.md has 177 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~44
When it runs · the whole SKILL.md, loaded when a task matches
~561
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from HoangNguyen0403/agent-skills-standard at commit b529c2d, republished under its MIT licence (© HoangNguyen0403). 177 words, ~561 tokens.

Download SKILL.mdSave it as .claude/skills/flutter-retrofit-networking/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
flutter-retrofit-networking
description
Build type-safe HTTP networking with Dio and Retrofit including auth interceptors in Flutter. Use when integrating REST APIs with Dio or Retrofit.

Retrofit & Dio Networking

Priority: P0 (CRITICAL)

Structure

text
infrastructure/
├── data_sources/
│   ├── remote/       # Retrofit abstract classes
│   └── local/        # Cache/Storage
└── network/
    ├── dio_client.dart    # Custom Dio setup
    └── interceptors/      # Auth, Logging, Cache

Implementation Workflow

  1. Define Retrofit clients — Create abstract classes with @RestApi() and HTTP annotations (@GET, @POST). Methods return Future<DTO>.
  2. Create DTOs — Use @freezed and @JsonSerializable for all request/response bodies.
  3. Map to domain — Data sources must map DTOs to Domain Entities (e.g., userDto.toDomain()).
  4. Guard enums — Always use @JsonKey(unknownEnumValue: Status.unknown) to prevent crashes from new backend values.
  5. Add auth interceptor — Inject Authorization: Bearer <token> in onRequest.
  6. Handle token refresh — On 401, lock Dio, call refreshToken(), update stored token, retry via dio.fetch(err.requestOptions).
  7. Map failures — Convert DioException to typed Failure objects (ServerFailure, NetworkFailure).
Retrofit Client & Safe Enum DTO Examples

See implementation examples for RestClient definitions and safe enum DTO patterns.

Anti-Patterns

  • No Manual JSON Parsing: Use Retrofit's generated mappers instead of jsonDecode
  • No Global Dio Instances: Inject Dio through DI
  • No Inline Try-Catch: repository layer should handle all Retrofit exceptions
  • No Unguarded Enums: Always include unknownEnumValue to prevent crashes on new backend values

Reference & Examples

For RestClient definitions and Auth Interceptor implementation: See references/REFERENCE.md.

feature-based-clean-architecture | error-handling

© HoangNguyen0403, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 4 other files (references) in skills/flutter/flutter-retrofit-networking of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json
  • references/REFERENCE.md
  • references/implementation.md
  • references/token-refresh.md

Open the folder on GitHubat commit b529c2d

Compare with similar skills

Flutter Retrofit Networking next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Flutter Retrofit Networking compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Flutter Retrofit Networking this skillHoangNguyen0403/agent-skills-standard572—~561Automated safety check: PassMIT
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Layered ArchitectureVeryGoodOpenSource/vgv-ai-flutter-plugin170—~4.6kAutomated safety check: PassMIT
Flutter Use HTTP Packageabdulmominsakib/localmind2681 repos~1.6kAutomated safety check: PassMIT
Dart DriftMADTeacher/mad-agents-skills110—~1.2kAutomated safety check: PassMIT

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Works with

Categories

Questions about Flutter Retrofit Networking

What does Flutter Retrofit Networking do?

Build type-safe HTTP networking with Dio and Retrofit including auth interceptors in Flutter. Flutter Retrofit Networking is an agent skill from HoangNguyen0403/agent-skills-standard. Build type-safe HTTP networking with Dio and Retrofit including auth interceptors in Flutter.

When should I use Flutter Retrofit Networking?

Flutter Retrofit Networking fits situations like: integrating REST APIs with Dio; tasks that involve Cross-platform mobile apps; tasks that involve Type safety.

How do I install Flutter Retrofit Networking in Claude Code?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill flutter-retrofit-networking -a claude-code`. Or copy the skill folder (skills/flutter/flutter-retrofit-networking in HoangNguyen0403/agent-skills-standard) into .claude/skills/flutter-retrofit-networking in your project. Claude Code loads it when a task matches its description.

How do I install Flutter Retrofit Networking in Codex?

Run `npx skills add HoangNguyen0403/agent-skills-standard --skill flutter-retrofit-networking -a codex`. Or copy the skill folder (skills/flutter/flutter-retrofit-networking in HoangNguyen0403/agent-skills-standard) into .agents/skills/flutter-retrofit-networking in your project. Codex loads it when a task matches its description.

Can I use Flutter Retrofit Networking in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add HoangNguyen0403/agent-skills-standard --skill flutter-retrofit-networking -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/flutter-retrofit-networking, .gemini/skills/flutter-retrofit-networking, .github/skills/flutter-retrofit-networking and .opencode/skills/flutter-retrofit-networking in your project.

What does Flutter Retrofit Networking need to run?

SKILL.md names no scripts, command-line tools or credentials: Flutter Retrofit Networking is instructions for the agent only.

Does Flutter Retrofit Networking access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Flutter Retrofit Networking safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Flutter Retrofit Networking use?

Flutter Retrofit Networking is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Flutter Retrofit Networking use?

About 561 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 690 tokens, read only when the agent opens those files.

What are the alternatives to Flutter Retrofit Networking?

Skills that share tags, products or a category with Flutter Retrofit Networking: Remote API Development (FNOSP/FlyNarwhal, 509 stars), Navigation (VeryGoodOpenSource/vgv-ai-flutter-plugin, 170 stars), Layered Architecture (VeryGoodOpenSource/vgv-ai-flutter-plugin, 170 stars) and Flutter Use HTTP Package (abdulmominsakib/localmind, 268 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Flutter Retrofit Networking?

HoangNguyen0403 (a GitHub user) maintains it in HoangNguyen0403/agent-skills-standard, which has 572 GitHub stars. The repository holds 211 skills in this directory. The repository was last updated on October 9, 2026.

Source: HoangNguyen0403/agent-skills-standard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.