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Skillpack blog

Guides to SKILL.md and Agent Skills

Writing, versioning and sharing skills for your team's coding agents.

  • Codex Skills Not Loading? Fix .agents/skills Path Issues

    Codex skill not showing up? Check .agents/skills vs .codex/skills, ~/.agents/skills, duplicate names, the skills budget and disabled skills, step by step.

    • Codex
    • Agent Skills
    • Troubleshooting
    • SKILL.md
    • Skillpack CLI
  • Best Claude Code Skills for Marketing & SEO (2026)

    The 7 most-installed Claude Code marketing and SEO skills in 2026: seo-audit, seo-geo, Addy Osmani's seo and more, with install commands.

    • Claude Code
    • Agent Skills
    • Marketing
    • SEO
    • GEO
    • AEO
  • Agent Skills Open Standard vs Vendor Folders

    The Agent Skills open standard is a portable SKILL.md folder. Compare where Claude Code, Codex and Cursor load skills from their own directories.

    • Agent Skills
    • SKILL.md
    • Claude Code
    • Codex
    • Cursor
    • Skillpack CLI
  • Claude Skills Examples That Aren't Toy Demos (2026)

    Five real Claude skills examples with scripts, references and clear triggers: frontend-design, webapp-testing, grill-me, brainstorming and agent-browser.

    • Claude Code
    • Agent Skills
    • SKILL.md
    • Examples
    • Skillpack CLI
  • Claude Code Skills Not Working? 8 Causes and Fixes

    Claude Code skill not loading or never triggering? Check the folder, scope, SKILL.md frontmatter, description, duplicates and Codex or Cursor paths.

    • Claude Code
    • Agent Skills
    • Troubleshooting
    • Codex
    • Cursor
    • Skillpack CLI
  • How to Check Agent Skills in CI: Validate, Lock, Sync

    A CI setup for Claude Code and Codex skills: validate every SKILL.md, commit a lockfile, fail on drift with frozen sync, and review skill updates in PRs.

    • Agent Skills
    • CI
    • Claude Code
    • Codex
    • Skillpack CLI
  • Claude Code Skills vs Slash Commands vs Plugins (2026)

    Custom slash commands are now skills in Claude Code. When to keep a command, write a skill or ship a plugin, plus the Codex and Cursor equivalents.

    • Claude Code
    • Agent Skills
    • Slash commands
    • Plugins
  • Best Claude Code Skills for Planning and Specs (2026)

    The 7 most-installed Claude Code planning skills in 2026: grill-me, brainstorming, spec-driven development and PRD skills, with install commands.

    • Claude Code
    • Agent Skills
    • Planning
    • Specs
    • PRD
  • Claude Code Subagents vs Skills: When to Use Each (2026)

    Claude Code subagents vs skills: what each one is, how they load context, when to pick which, and how to combine them with skills: and context: fork.

    • Claude Code
    • Subagents
    • Agent Skills
    • SKILL.md
  • Best Claude Code Skills for Testing and TDD (2026)

    Eight Claude Code skills for testing in 2026, ranked by skills.sh installs: agent-browser, TDD, Playwright, webapp-testing and Vitest, with install steps.

    • Claude Code
    • Agent Skills
    • Testing
    • TDD
    • Playwright
  • Cursor Skills: How to Use, Create and Install Them (2026)

    Cursor skills explained: which folders Cursor reads SKILL.md from, how to call a skill with /, how to write one, and how to install and share skills.

    • Cursor
    • Agent Skills
    • SKILL.md
    • Skillpack CLI
  • Best Claude Code Skills in 2026: 9 Ranked by Installs

    The best Claude Code skills in 2026, ranked by skills.sh installs: find-skills, grill-me, agent-browser, frontend-design and more, with install commands.

    • Claude Code
    • Agent Skills
    • Skills List
  • Codex Skills: How to Install, Use and Create Them (2026)

    Codex skills explained: where Codex looks for SKILL.md folders, how to invoke them with $ or /skills, and how to install, write, disable and share them.

    • Codex
    • Agent Skills
    • SKILL.md
    • Skillpack CLI
  • Best Claude Code Skills for Video and Motion Design (2026)

    Eight Claude Code skills for video and motion design in 2026, ranked by skills.sh installs: HyperFrames, Remotion, GSAP, LottieFiles and more.

    • Claude Code
    • Agent Skills
    • Video
    • Motion Design
  • How to Create a Claude Code Skill: Step-by-Step Guide (2026)

    Build a working Claude Code skill: write SKILL.md, test that it triggers, add scripts and references, then validate it and reuse it in Codex.

    • Claude Code
    • Agent Skills
    • SKILL.md
    • Skillpack CLI
  • Best Claude Code Skills for Code Review (2026)

    The 7 most-installed Claude Code skills for code review in 2026, ranked by public installs, with maintainer, license and an install command each.

    • Claude Code
    • Agent Skills
    • Code Review
  • Best Claude Code Skills for Frontend Design (2026)

    7 widely installed Claude Code skills for frontend design in 2026, ranked by public installs, with maintainer, license, scope and install commands.

    • Claude Code
    • Agent Skills
    • Frontend
  • How to Share Claude Code Skills With Your Team

    Four ways to share Claude Code skills with your team: commit them to the repo, ship a plugin, provision them in claude.ai, or use a Skills Hub with a lockfile.

    • Claude Code
    • Agent Skills
    • Skillpack CLI
    • Teams
  • Agent Skills vs MCP: Differences and When to Use Each

    Agent Skills teach an agent how to do a task. MCP connects it to tools and data. How they differ and when to use each in Claude Code, Codex and OpenCode.

    • Agent Skills
    • MCP
    • Claude Code
  • How to Install Skills in Claude Code (Manual and CLI)

    Install Agent Skills in Claude Code by hand or with the Skillpack CLI: where SKILL.md folders go, user vs project scope, and how to pin versions for your team.

    • Claude Code
    • Agent Skills
    • Skillpack CLI
  • SKILL.md Format: Specification, Fields and Examples (2026)

    SKILL.md format explained: frontmatter fields, naming rules, size limits, an example file and how to validate it. Based on the agentskills.io spec.

    • SKILL.md
    • Agent Skills