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flutter-state-restoration

flutter-state-restoration is a skill for Claude Code, Codex from yendangn/flutter-app-builder. It costs 64 tokens per session (432 once invoked), scanned A, original, MIT.

A guide for preserving Flutter app state when the operating system stops and later recreates the app. It covers saved forms, scroll positions, selected tabs, and page state using on-device restoration tools.

In plain words
What is it for?
Use it to restore form values, scroll positions, tab selections, and navigation state, and to decide which state should or should not be saved.
Why use it?
It prevents users from losing their place or entered information after process death or an app restart. It also separates ordinary UI state from sensitive data that should use secure storage.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 5repo 2mo ago A scan 64 tokens original MIT

Good fit Use it to restore form values, scroll positions, tab selections, and navigation state, and to decide which state should or should not be saved.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/yendangn/flutter-app-builder/flutter-state-restoration
View source ↗ yendangn/flutter-app-builder
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.

Any agent
npx skills add yendangn/flutter-app-builder --skill flutter-state-restoration
Clone the repo
git clone --depth 1 https://github.com/yendangn/flutter-app-builder

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for flutter-state-restoration

README.md
[![agentmods](https://agentmods.dev/badge/skills/yendangn/flutter-app-builder/flutter-state-restoration.svg)](https://agentmods.dev/skills/yendangn/flutter-app-builder/flutter-state-restoration)
Your own site
<a href="https://agentmods.dev/skills/yendangn/flutter-app-builder/flutter-state-restoration"><img src="https://agentmods.dev/badge/skills/yendangn/flutter-app-builder/flutter-state-restoration.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 432 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00064 $0.00432
Opus 5 $0.00032 $0.00216
Sonnet 5 $0.00013 $0.00086
Haiku 4.5 $0.00006 $0.00043

Measured 8d ago against content hash 647cd35fe22c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

flutter-state-restoration 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 8d 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/flutter-state-restoration/SKILL.md · 35 lines

What it actually says

Flutter State Restoration

Full reference: template.md

Key rules

  • HydratedCubit (from hydrated_bloc) automatically serializes/deserializes state to disk. Implement fromJson()/toJson() in every HydratedCubit.
  • fromJson() must be defensive — return a valid default state if JSON is null, malformed, or from an incompatible version.
  • toJson() returns null to skip persistence (e.g., for error states or states with sensitive data).
  • HydratedBloc.storage must be initialized before runApp(): HydratedBloc.storage = await HydratedStorage.build(storageDirectory: dir).
  • RestorationMixin + RootRestorationScope → for scroll, text, tab, and page state that doesn't go through a cubit.
  • Assign restorationScopeId to MaterialApp.router, GoRouter, Scaffold, and any restorable widget.
  • Form restoration: HydratedCubit for field values. RestorationMixin for scroll position.
  • Never persist sensitive data (tokens, PII) via HydratedCubit — use SecureStorage for those.

Files

lib/src/core/di/service_locator.dart   ← initializes HydratedBloc.storage
lib/src/app/app_bootstrap.dart         ← path_provider for storage directory

Each HydratedCubit is in its feature's presentation/cubit/ folder.

Co-load with

  • flutter-forms — form cubits use HydratedCubit for persistence
  • flutter-storage — path_provider for storage directory
  • flutter-di — storage init in bootstrap
Files

What ships with it

5 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. 8d ago First seen · 35 lines · 64 tokens per session scan A 647cd35fe22c

Subscribe to this mod's changes

flutter-state-restoration is a skill published in the GitHub repository yendangn/flutter-app-builder (5 stars, last pushed 2mo ago), licensed MIT. It adds 64 tokens to every session and 432 once invoked, about $0.0003 per session on Opus 5. 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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