Developer Tools & Repos Agent Skills for Codex CLI

Apply when designing types, reviewing a function signature, or writing code in any statically-typed language.

Create MicroPython applications for Universe 2025 (Tufty) Badge including display graphics, button handling, and MonaOS app structure.

Configures Python projects to the Python Tooling SSOT Standard (uv, Ruff, BasedPyright strict, pytest+coverage, pip-audit).

Validate an existing knowledge base connector against its service's API docs

Validate an existing Sim integration (tools, block, registry, and resolved-secret/model-input boundaries) against the service's API docs…

Validate a model entry (or every model in a provider) in apps/sim/providers/models.ts against the provider's live API docs (no…

Validate an existing Sim webhook trigger against provider API docs and repository conventions

Enforces a pure-Dart value-object core that stores every quantity canonically — money as integer minor units keyed to each currency's real…

Install and configure Vendo (the embedded product agent) in a host repo.

Semantic version parsing, bump strategies, and document version management.

Use when designing APIs or module boundaries — contract-first, Hyrum Law, error semantics.

Use when Vue 3 Composition API with reactive refs, computed, and composables.

Enforces Flutter widget composition — extract named const Widget classes never `Widget _buildX()` methods, lean build() (no…

When to activate: WidgetKit, widget timelines, AppIntents, interactive widgets, widget configuration, SwiftUI widget views

Expert guidance for Windows, PowerShell, WSL interop, and cross-platform development

Build, troubleshoot, or set up native Windows C and C++ compilation with MinGW-w64, MSYS2, GCC, G++, Clang, LLVM, mingw32-make, static…

Deterministic, blocking validation of the project's docs/ brief against the harness-project API: roster existence, required sections, data…

Wipe .aiwg/ directory and optionally restart with fresh intake

Create or destroy a code-only git worktree for a PR, branch, or new task (fetch + checkout, no env/DB/ports/yarn/seed).

Replace React/effect-atom mutation handlers that use promise-mode plus try/catch with promiseExit and explicit Exit handling.

Replace duplicated TypeScript shape declarations next to Effect Schema definitions with schema-derived types.