flutter-skills

Design, implement, or repair production observability in Flutter using operational logs, error and crash capture, breadcrumbs, traces, release context, privacy controls, and verification. Use for diagnosability and incident signals; not product analytics, profiling-only optimization, or a general code review.

Discover, inspect, generate, or update Flutter and Dart API clients from Swagger or OpenAPI contracts. Use when spec inventory, operation selection, client generation, or contract drift is the task; route ordinary HTTP behavior to flutter-networking and login or token lifecycle to flutter-authentication.

Create, evolve, test, or prepare reusable Dart packages and Flutter plugins for distribution. Use when the package itself, its public API, platform support, federation, example app, compatibility, or publication readiness is the deliverable; route app-owned native bridges to flutter-platform-integration.

Profile and improve Flutter runtime performance using profile-mode evidence, DevTools, frame analysis, rebuild inspection, memory, and app-size tools. Use for jank, slow startup, excessive work, leaks, or size regressions; route production logs, errors, and traces to flutter-observability.

Design or review Flutter on-device persistence, caching, schema migrations, and offline synchronization. Use for preferences, files, local databases, cache lifecycle, or durable queues while preserving the existing package; route remote transport to flutter-networking and broad threat audits to flutter-security.

Implement or review Flutter platform channels, Pigeon APIs, FFI and build hooks, native plugin implementations, platform views, add-to-app boundaries, web interop, and native lifecycle integration. Use when Dart must communicate with native platforms; route reusable package APIs, federation, and publication readiness to flutter-package-development.

Design, implement, repair, or review product analytics in Flutter using event contracts, identity, consent, funnels, attribution, experiment exposure, delivery semantics, and backend verification. Use for measuring user behavior and business outcomes; not operational logs, crash reporting, profiling, or general UI tracking.

Build or repair adaptive Flutter layouts across devices, constraints, breakpoints, overlap, clipping, orientation, and input modes. Use with flutter-accessibility when text scaling causes reflow, clipping, or disappearing controls; not for general widget state architecture.

Reproduce, inspect, diagnose, and fix Flutter failures in a running app using logs, debugger attachment, DevTools, framework diagnostics, and minimal experiments. Use for runtime exceptions, incorrect live state, hangs, lifecycle failures, or failures that require execution evidence; route benchmarked jank to flutter-performance and planned device-flow verification to flutter-device-testing.

Threat-model, audit, or harden Flutter and Dart applications against concrete security and privacy risks involving authorization, secrets, sensitive storage, cryptography, WebViews, deep links, platform exposure, or dependencies. Use for security findings and control requirements; route sign-in and session implementation to flutter-authentication.

Design or review Flutter state ownership, update flow, and package integration. Use for setState, Listenable, Provider, Riverpod, Bloc, Redux, or custom state problems; preserve the project's established approach unless migration is requested.

Design, write, or review Flutter unit, widget, golden, and integration tests. Use for test strategy, regressions, fakes, async UI behavior, and end-to-end flows; use device testing for operational emulator or hardware control.

Diagnose and fix Flutter text display issues including text overflow, orphaned words, line breaking, truncation, multi-style spans, and text scaling. Use when text clips, leaves dangling single words, overflows containers, or requires rich inline spans; route typography tokens and visual hierarchy to flutter-ui-design and screen-level layout constraints to flutter-responsive-layout.

Design or visually transform Flutter interfaces with a deliberate art direction, distinctive product identity, coherent tokens, complete states, and rendered visual proof. Use for UI/UX design, redesign, reference-driven parity, or when a screen feels generic or unfinished; route widget architecture and responsive mechanics to their dedicated skills.

Build and refactor Flutter widgets, forms with stale-safe asynchronous validation and duplicate-submit handling, widget previews, component APIs, and UI state boundaries. Use alone for form behavior over existing services; add networking or concurrency only when their infrastructure changes, and route visual polish, responsive layout, navigation, animation, and performance to their specialists.

Implement or review advanced Flutter visual rendering such as frosted or liquid glass, backdrop blur, refraction, shaders, custom painting, glow, masks, and effect fallbacks. Use when the request explicitly needs a nontrivial visual effect; route art direction, ordinary styling, animation timing, and evidence-based performance diagnosis to their dedicated skills.

Implement, repair, or review embedded web content in Flutter, including navigation policy, JavaScript bridges, cookies, sessions, file flows, permissions, and WebView lifecycle. Use when a Flutter screen hosts web content; route OAuth sign-in to flutter-authentication, app routes to flutter-navigation, and broad threat audits to flutter-security.