Use for end-to-end feature delivery or extension work across Swift, Kotlin/Android, Flutter, Tauri, Rust, and frontend code when the goal is to ship behavior with production-quality defaults, tests, and release-aware validation.
Installation
Installer avec Codex ou Claude Copiez ce prompt, collez-le dans Codex, Claude ou un autre assistant, puis laissez-le vérifier la page du skill et l'installer pour vous.
Use for end-to-end feature delivery or extension work across Swift, Kotlin/Android, Flutter, Tauri, Rust, and frontend code when the goal is to ship behavior with production-quality defaults, tests, and release-aware validation.
Feature Implementation
Use when
the main task is adding or extending product behavior
the work spans design, implementation, testing, and validation
the user expects code, not just analysis
Do not use when
the task is primarily a bug investigation, refactor-only cleanup, or pure review
the request is architecture-only and should be settled before coding
Working rules
Start from existing patterns in the repo before inventing new abstractions.
Prefer the smallest complete slice that solves the request cleanly.
Think through happy path, failure path, interruption path, and recovery path together.
Keep UI state, domain logic, and transport boundaries explicit.
Treat accessibility, observability, and rollback awareness as part of implementation quality.
Workflow
Restate the feature in a few precise bullets and identify acceptance criteria.
Inspect the relevant code paths, tests, naming, state flow, and UI conventions.
Choose the minimum file set and implementation slice required.
Implement in small coherent steps.
Add or update the narrowest tests that protect the new behavior.
Run focused validation first, then broader checks when justified.
Self-review for regressions, placeholder content, and release gaps before finishing.
Quality bar
No invented APIs or guessed behavior.
User-visible states are deliberate.
Public contracts, serialization, permissions, and migrations are handled intentionally.
The result should be merge-ready by default and release-ready when feasible.
Reference routing
Read references/coding-agent-guidance.md for repo-first implementation guidance.
Read references/platform-ux-checklist.md for UI and UX quality checks.
Read references/release-quality-gates.md when the change affects product quality, rollout, or user trust.
Read references/official-docs.md only when primary platform guidance changes the implementation.
