Create, simplify, and maintain implementation-ready architecture design documents from iterative technical discussions. Use when Codex needs to turn evolving product/system design conversations into concise docs, preserve user-confirmed decisions, label confidence/review levels, split or consolidate design docs, define module boundaries, produce implementation prompts, or prevent architecture docs from becoming verbose and redundant.
Proven patterns for building or refining Reflex admin dashboards, user portals, operations consoles, and classic sidebar-plus-content management UIs. Use when editing `.py` files that import `reflex as rx`, creating metric cards, left navigation sidebars, mobile drawer or dropdown nav triggers, status panels, action forms, code or result blocks, or responsive dashboard pages. When bootstrapping a new Reflex app, prefer `reflex init --template dashboard` by default, and switch to `customer_data_app` or `api_admin_panel` only when the product shape matches those templates more closely.
Merge a specified branch into the current branch with a merge commit. Use this when the user wants to merge one branch into the current branch, or when Codex should auto-detect the source branch that has commits after the current branch. The skill checks whether the source branch and target branch have uncommitted work in any active git worktree, and resolves merge conflicts autonomously by default.
Build, debug, and refactor Streamlit apps and widgets. Use when Codex works on Streamlit UI files, session_state behavior, rerun/callback bugs, st.data_editor or dataframe widgets, layout parameters, widget keys, Streamlit version compatibility, or deprecated/new parameters such as width="stretch" replacing older container-width patterns.
Create a Dart-based macOS background activity process managed by launchd. Use when Codex needs to scaffold or fix a LaunchAgent for a Dart program, generate the executable entrypoint, write the plist, or ensure App Background Activity shows the intended process name instead of a shell wrapper.
Prepare, build, and publish a Flutter Web app to S3-compatible object storage. Use when Codex needs to bump or update pubspec.yaml version, create a Flutter Web release tag, configure S3 deployment, build build/web, upload or promote web assets, or inspect a Flutter Web S3 release workflow.
Automates the Flutter package release process via git tags and GitHub Actions. Handles multi-package workspaces, SemVer versioning suggestions based on git history, updating pubspec.yaml and CHANGELOG.md, and dry-run validation. Use when the user wants to "release", "publish", or "version" a Flutter package.
Add and maintain Slang localization in Flutter projects. Use when Codex needs to introduce slang, slang_flutter, or slang_build_runner, migrate hardcoded Flutter UI strings into Slang translations, scan Dart code for user-visible strings, or review existing Slang keys for semantic fit.