Codex skills: 1008 worth installing

Guides FastAPI Python backend development with typed routes, Pydantic validation, asynchronous operations and maintainable API structure.

Evaluates Google Cloud workloads against Well-Architected security principles and recommends controls for identity, networks, data, operations and compliance.

Generates Google Cloud cost guidance using the Well-Architected Framework, covering visibility, resource efficiency, governance and continuous optimisation.

Generates Google Cloud reliability guidance for workload architecture, covering availability, resilience, observability and disaster recovery.

Sends brief, anonymous, unstructured Slack complaints about frustrating agent tooling or the experience of agent work.

Reports concrete, generalisable friction in agent tooling and workflows to an internal suggestion box with structured, safe context.

Runs Dart analysis, applies mechanical fixes and formats changed code using the Dart CLI or available MCP tools.

Creates and organises Dart and Flutter unit tests with package:test, including grouped cases, async checks, mocks and test commands.

Fixes Dart analysis and runtime failures by tracing errors, applying code changes, and checking results with analysis, tests and hot reload.

Resolves Dart package version conflicts by auditing constraints, upgrading compatible dependencies, and refreshing only the affected lockfile entry.

Applies Dart 3 pattern matching to validate data, destructure collections and records, parse responses and handle sealed types exhaustively.

Generates Mockito test doubles for Dart dependencies and guides stub, verification and test execution with build_runner.

Generates LCOV test coverage reports for Dart and Flutter projects using the coverage package and Dart VM tooling.

Guides developers through Dart primary constructor syntax, migration, concise constructors and common initialisation errors.

Guides the architecture, packaging, testing and distribution of Dart command-line applications, including argument parsing, exit codes and subprocesses.

Migrates Dart test assertions from package:matcher to package:checks, translating equality, collection, property, asynchronous and error expectations.

Generates Dart FFI bindings from native headers with package:ffigen instead of relying on hand-written bindings.

Guides Dart and Flutter packages in compiling, linking and packaging C/C++ libraries as Native Assets with FFI bindings.

Creates and edits Enterprise WeChat Smart Pages with the WeCom CLI, including page structures, attachments, embedded data tables, dashboards and forms.

Configures Ultracite for JavaScript and TypeScript projects, then checks, fixes and diagnoses linting and formatting issues.

Evaluates Google Cloud workloads against operational excellence practices for readiness, incidents, resource use, change automation and improvement.

Manages custom stateful agents on Google Cloud's Gemini Enterprise Agent Platform, including creation, configuration, listing, updates and deletion.

Evaluates Google Cloud workloads against the Well-Architected Framework's performance pillar and recommends resource, scaling, modularity and monitoring improvements.

Recommends ways to reduce the environmental impact of Google Cloud workloads through efficient architecture, low-carbon regions and emissions tracking.