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Agent skill

Flutter Bloc State Management

by HoangNguyen0403 in HoangNguyen0403/agent-skills-standard

Implement BLoC/Cubit state, events, transitions, and async concurrency in Flutter.

MITAuto-check passedMobile

Install Flutter Bloc State Management

skills CLI
$ npx skills add HoangNguyen0403/agent-skills-standard --skill flutter-bloc-state-management -a claude-code

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

GitHub CLI
$ gh skill install HoangNguyen0403/agent-skills-standard flutter-bloc-state-management --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-bloc-state-management .claude/skills/flutter-bloc-state-management && 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-bloc-state-management
GitHub stars
572
Token cost
~832 tokens
SKILL.md length
312 words
Files
3 (incl. references)
Skills in repo
211
Repo updated
First seen
Licence
MIT

At a glance

Implement BLoC/Cubit state, events, transitions, and async concurrency in Flutter.

  • Works in 4 steps: Define Events: What happens? (UserTap,… → Define States: What needs to show?… → Implement BLoC: Map Events to States… → …
  • BLoC/Cubit feature logic
  • SKILL.md covers Priority: P0 (CRITICAL), State Design Workflow, Implementation Guidelines and Verification Checklist…, plus 5 more sections
  • Calls flutter

What it does

Flutter Bloc State Management is an agent skill from HoangNguyen0403/agent-skills-standard. Implement BLoC/Cubit state, events, transitions, and async concurrency in Flutter. Use for BLoC/Cubit feature logic, debounced/cancellable events, state rendering, or bloc tests—not generic widget-only work.

Its SKILL.md is about 830 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `evals/evals.json` and `references/bloc_templates.md`).

It sits in Mobile, covering Cross-platform mobile apps and State management. 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

  • BLoC/Cubit feature logic
  • Debounced/cancellable events
  • State rendering
  • Bloc tests—not generic widget-only work

Example prompts

  • “/flutter-bloc-state-management”

Workflow steps

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

  1. Define Events: What happens? (UserTap, ApiSuccess). Use @freezed.
  2. Define States: What needs to show? (Initial, Loading, Data, Error).
  3. Implement BLoC: Map Events to States using on.
  4. Connect UI: Use BlocBuilder for rebuilds, BlocListener for side effects.

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

    Shell commands in SKILL.md call:

    • flutter

    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 Bloc State Management loads about 832 tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 59 tokens; SKILL.md has 312 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~59
When it runs · the whole SKILL.md, loaded when a task matches
~832
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). 312 words, ~832 tokens.

Download SKILL.mdSave it as .claude/skills/flutter-bloc-state-management/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
flutter-bloc-state-management
description
Implement BLoC/Cubit state, events, transitions, and async concurrency in Flutter. Use for BLoC/Cubit feature logic, debounced/cancellable events, state rendering, or bloc tests—not generic widget-only work.

BLoC State Management

Priority: P0 (CRITICAL)

Role: Flutter State Management Expert. Design predictable, testable state flows.

State Design Workflow

  1. Define Events: What happens? (UserTap, ApiSuccess). Use @freezed.
  2. Define States: What needs to show? (Initial, Loading, Data, Error).
  3. Implement BLoC: Map Events to States using on<Event>.
  4. Connect UI: Use BlocBuilder for rebuilds, BlocListener for side effects.

Implementation Guidelines

  • States & Events: Use @freezed for union types (e.g., Initial, Loading, Success, Failure states).
  • Error Handling: Emit Failure states for UI-critical errors. For silent/background events, either let exceptions propagate naturally to global onError interceptor (e.g., in AppBlocObserver), or catch and call addError(e, st) without emitting error state.
  • Async Data: Use emit.forEach for streams or await with emit call.
  • Concurrency: Use transformer: restartable() from bloc_concurrency for search/typeahead to debounce and cancel previous requests.
  • UI Connectivity: Use BlocBuilder for UI rebuilds (e.g., loading spinner, data list, error message) and BlocListener for side effects (navigation, snackbars).
  • Testing: Use blocTest for ALL states and verify sequence of emitted states.

Verification Checklist (Mandatory)

  • Initial State: Defined and tested?
  • Test Coverage: blocTest used for ALL states?
  • UI Logic: No complex calculation in BlocBuilder?
  • Side Effects: Navigation/Snackbars in BlocListener (NOT Builder)?

Anti-Patterns

  • No .then(): Use await or emit.forEach() to emit.
  • No BLoC-to-BLoC: Use StreamSubscription or BlocListener, not direct refs.
  • No Logic in Builder: Move valid logic to BLoC.
  • No BlocBuilder without buildWhen: Heavy subtrees must declare buildWhen predicate to prevent unnecessary rebuilds.

Verification

  • Every BLoC has blocTest covering Initial → Loading → Success and Initial → Loading → Failure.
  • Side effects (navigation, snackbars) use BlocListener, not BlocBuilder.
  • Heavy BlocBuilder widgets declare buildWhen.
  • flutter test passes.

References

Event-handler correction

  • emit() is not a Future: Remove .then() from it, use await for asynchronous work, and register the event with an on<Event> handler.

Canonical response anchors

When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant:

  • Remove

© 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 2 other files (references) in skills/flutter/flutter-bloc-state-management of HoangNguyen0403/agent-skills-standard.

  • SKILL.md
  • evals/evals.json
  • references/bloc_templates.md

Open the folder on GitHubat commit b529c2d

Compare with similar skills

Flutter Bloc State Management 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 Bloc State Management compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Flutter Bloc State Management this skillHoangNguyen0403/agent-skills-standard572—~832Automated safety check: PassMIT
Flutter Riverpod State Managementandrewyng/context-hub14k—~1.1kAutomated safety check: PassMIT
BlocVeryGoodOpenSource/vgv-ai-flutter-plugin170—~2kAutomated safety check: PassMIT
Flutter Dart Code Reviewaffaan-m/ECC277k2 repos~5.8kAutomated safety check: NotesMIT
Signals for Flutterrodydavis/signals.dart819—~1.9kAutomated safety check: PassApache-2.0
Flutteralinaqi/maggy707—~3.5kAutomated safety check: PassMIT

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Works with

Categories

Questions about Flutter Bloc State Management

What does Flutter Bloc State Management do?

Implement BLoC/Cubit state, events, transitions, and async concurrency in Flutter. Flutter Bloc State Management is an agent skill from HoangNguyen0403/agent-skills-standard. Implement BLoC/Cubit state, events, transitions, and async concurrency in Flutter.

When should I use Flutter Bloc State Management?

Flutter Bloc State Management fits situations like: BLoC/Cubit feature logic; debounced/cancellable events; state rendering; bloc tests—not generic widget-only work.

How do I install Flutter Bloc State Management in Claude Code?

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

How do I install Flutter Bloc State Management in Codex?

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

Can I use Flutter Bloc State Management 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-bloc-state-management -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-bloc-state-management, .gemini/skills/flutter-bloc-state-management, .github/skills/flutter-bloc-state-management and .opencode/skills/flutter-bloc-state-management in your project.

What does Flutter Bloc State Management need to run?

Going by SKILL.md and its folder, Flutter Bloc State Management needs the command-line tools its instructions call (flutter).

Does Flutter Bloc State Management 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 Bloc State Management 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 Bloc State Management use?

Flutter Bloc State Management 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 Bloc State Management use?

About 832 tokens (SKILL.md is roughly 3.3k 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 504 tokens, read only when the agent opens those files.

What are the alternatives to Flutter Bloc State Management?

Skills that share tags, products or a category with Flutter Bloc State Management: Flutter Riverpod State Management (andrewyng/context-hub, 14k stars), Bloc (VeryGoodOpenSource/vgv-ai-flutter-plugin, 170 stars), Flutter Dart Code Review (affaan-m/ECC, 277k stars) and Signals for Flutter (rodydavis/signals.dart, 819 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Flutter Bloc State Management?

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.