castle-x/skills-x

AI Agent Skills Repo

18Stars on the repository
31Mods indexed here, across every type
4mo agoLast push, which is what freshness is scored on
MITLicence, which decides whether bodies are shown

brainstorming

01

castle-x/skills-x

Skill Claude Code

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.

not rated 18 4mo ago A 37 tokens copy · 100% MIT

castle-x/skills-x

Skill Claude Code

Use when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies.

not rated 18 4mo ago A 26 tokens copy · 92% MIT

executing-plans

03

castle-x/skills-x

Skill Claude Code

Use when you have a written implementation plan to execute in a separate session with review checkpoints.

not rated 18 4mo ago A 22 tokens copy · 80% MIT

find-skills

04

castle-x/skills-x

Skill Claude Code

Helps users discover and install agent skills when they ask questions like "how do I do X", "find a skill for X", "is there a skill that can...", or express interest in extending capabilities. This skill should be used when the user is looking for functionality that might exist as an installable skill.

not rated 18 4mo ago A 67 tokens copy · 91% MIT

castle-x/skills-x

Skill Claude Code

Use when implementation is complete, all tests pass, and you need to decide how to integrate the work - guides completion of development work by presenting structured options for merge, PR, or cleanup.

not rated 18 4mo ago A 44 tokens copy · 86% MIT

castle-x/skills-x

Skill Claude Code

Building production-quality CLI tools with Cobra command framework and Viper configuration management.

not rated 18 4mo ago A 22 tokens copy · 95% MIT

golang-testing

07

castle-x/skills-x

Skill Claude Code

Go testing patterns including table-driven tests, subtests, benchmarks, fuzzing, and test coverage. Follows TDD methodology with idiomatic Go practices.

not rated 18 4mo ago A 35 tokens copy · 91% MIT

castle-x/skills-x

Skill Claude Code

Use when receiving code review feedback, before implementing suggestions, especially if feedback seems unclear or technically questionable - requires technical rigor and verification, not performative agreement or blind implementation.

not rated 18 4mo ago A 38 tokens copy · 94% MIT

castle-x/skills-x

Skill Claude Code

Use when completing tasks, implementing major features, or before merging to verify work meets requirements.

not rated 18 4mo ago A 22 tokens copy · 81% MIT

skill-creator

10

castle-x/skills-x

Skill Claude Code

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

not rated 18 4mo ago A 63 tokens copy · 89% MIT

castle-x/skills-x

Skill Claude Code

Use when executing implementation plans with independent tasks in the current session.

not rated 18 4mo ago A 17 tokens copy · 94% MIT

castle-x/skills-x

Skill Claude Code

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

not rated 18 4mo ago A 21 tokens copy · 94% MIT

castle-x/skills-x

Skill Claude Code

Use when implementing any feature or bugfix, before writing implementation code.

not rated 18 4mo ago A 17 tokens copy · 88% MIT

using-superpowers

14

castle-x/skills-x

Skill Claude Code

Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions.

not rated 18 4mo ago A 29 tokens copy · 81% MIT

castle-x/skills-x

Skill Claude Code

Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always.

not rated 18 4mo ago A 43 tokens copy · 84% MIT

writing-plans

16

castle-x/skills-x

Skill Claude Code

Use when you have a spec or requirements for a multi-step task, before touching code.

not rated 18 4mo ago A 21 tokens copy · 100% MIT

go-i18n

17

castle-x/skills-x

Skill Codex

Use when defining or updating Go CLI i18n rules in this repo, especially around locale files, env-based language selection, and key naming.

not rated 18 4mo ago A 34 tokens original MIT

tui-design

18

castle-x/skills-x

Skill Codex

Design specification for CLI TUI (Terminal User Interface). This skill provides comprehensive guidelines for implementing interactive terminal UI components, including page layout structure, color schemes, keyboard navigation, and multi-level navigation principles.

not rated 18 4mo ago A 44 tokens original MIT

castle-x/skills-x

Skill Claude CodeCodex

A speech-to-text tool that turns OGG or Opus voice messages into written text using Baidu's speech-recognition service. It supports Mandarin, English, Cantonese, and Sichuanese, including setups where a proxy is used for other services.

not rated 18 4mo ago A 49 tokens original MIT

feishu-notify

20

castle-x/skills-x

Skill Claude CodeCodex

A skill that sends a Feishu group notification when Claude Code finishes a task. Feishu is a workplace messaging app, and the notification is sent through a group bot Webhook, a URL that accepts messages.

not rated 18 4mo ago B 140 tokens original MIT

go-embedded-spa

21

castle-x/skills-x

Skill Claude CodeCodex

This skill provides guidance for implementing Go Embedded SPA architecture - embedding React/Vue/TSX frontend static resources into Go binary using go:embed directive. Use this skill when building self-contained single-binary applications, implementing SPA with Go backend, setting up cross-platform deployable…

not rated 18 4mo ago A 76 tokens original MIT

minimal-ui-design

22

castle-x/skills-x

Skill Claude CodeCodex

Use when designing or refining UIs that must be visually minimal, low-noise, and icon-forward while staying understandable for new users, especially when reducing text, consolidating controls, or streamlining dialogs, toolbars, search panels, or list results.

not rated 18 4mo ago A 55 tokens original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: