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Self-contained CatHerder method and standards for plans and tasks: planning vs execution, execution loop, prompt precedence, persistence; plus prompt/spec/implementation/review/follow-up files, frontmatter, statuses, timestamps, the open-questions gate, and validation. Use when planning, creating, reviewing, executing, or validating planNNN folders, or fixing plan/task format drift.

Captures Norwegian Stein Storken-style writing and Excel workbook conventions for use when users want concise decision-support communication, summary-first multi-sheet models, three alternatives, and workbook handoff language such as 'en enkel modell'.

Validate and verify plans and tasks in .instructions folder against CatHerder standards. Use when creating, reviewing, updating, verifying or validating plans and/or tasks.

Read and write Google Docs.

Access files and folders in Google Drive. Use this skill to list, search, upload, edit, delete, download files, documents and folders in Google Drive.

Google Sheets: Read and write spreadsheets.

Google Slides: Read and write presentations.

Google Tasks: Manage task lists and tasks.

Self-contained CatHerder method and standards for plans and tasks: planning vs execution, execution loop, prompt precedence, persistence; plus prompt/spec/implementation/review/follow-up files, frontmatter, statuses, timestamps, the open-questions gate, and validation. Use when planning, creating, reviewing, executing, or validating planNNN folders, or fixing plan/task format drift.

Defines standards and best practices for authoring Agent Skill folders and SKILL.md files (frontmatter, descriptions/triggers, progressive disclosure, references/scripts/assets, and validation with skills-ref). Use when creating a new skill, reviewing or validating an existing skill, fixing skill discovery issues, or deciding what belongs in SKILL.md vs references/ vs scripts/. Use when user or you want to run skills-ref validation on a skill folder.

Use this skill when building applications with Gemini models, Gemini API, working with multimodal content (text, images, audio, video), implementing function calling, using structured outputs, or needing current model specifications. Covers SDK usage (google-genai for Python, @google/genai for JavaScript/TypeScript, com.google.genai:google-genai for Java, google.golang.org/genai for Go), model selection, and API capabilities.

Safe NuGet package management rules for .NET projects. Enforces using dotnet CLI commands instead of manually editing .csproj files.

Compares CatHerder instruction assets between catherder-enabled repositories and recommends safe sync direction or manual merge when users want diff lists, newer/better evaluation, or upstream/downstream sync suggestions for AGENTS.md, .instructions, and .agents content.

Defines CatHerder standards for plan folders and task files (naming, lifecycle stages, frontmatter, status values, timestamps, and validation). Use when creating, reviewing, activating, or validating planNNN folders and task files, or when fixing plan/task format drift.

Defines standards and best practices for authoring Agent Skill folders and SKILL.md files (frontmatter, descriptions/triggers, progressive disclosure, references/scripts/assets, and validation with skills-ref). Use when creating a new skill, reviewing or validating an existing skill, fixing skill discovery issues, or deciding what belongs in SKILL.md vs references/ vs scripts/. Use when user or you want to run skills-ref validation on a skill folder.

Develop web applications with TOAST UI Editor html/javascript component for Markdown viewing and editing. Use when you need to understand, plan, review, or write code that uses TOAST UI Editor, TOAST UI Editor Viewer or ToastUIEditorCore for markdown viewing or editing.