How to author a Claude Code Agent Skill — SKILL.md structure, routing-optimized descriptions, progressive disclosure, valid frontmatter fields, bundling scripts/reference files. Use when creating a new skill, writing or fixing a SKILL.md, deciding what belongs in frontmatter, splitting an oversized skill into reference files, or debugging why a skill never triggers.
How to install skill-development?
nxtg-ai/forge-plugin/skill-development
$npx -y skills add nxtg-ai/forge-plugin --skill skill-developmentInstalls into the current project.
›Prefer a prompt? Paste this to your agent
Run `npx skills use "https://github.com/nxtg-ai/forge-plugin" --skill "nxtg-ai/forge-plugin/skill-development"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/nxtg-ai/forge-plugin" that are relevant to the current task. Run `npx skills add "https://github.com/nxtg-ai/forge-plugin"` and select the relevant skills, then follow their instructions.
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