Interstitial skills

Public Agent Skills for Interstitial products and workflows. Each skill is a self-contained folder with a SKILL.md (YAML frontmatter + instructions). Layout matches common multi-skill repos such as anthropics/skills: browse ./skills for what ships here.

The main application code may live in private repos; this repository is the public catalog for installable skills only.

Skills

Skill	Folder	Summary
planetary	skills/planetary	Interstitial Planetary Software — one HTTP MCP URL (POST /api/v1/atlas/mcp), four tools for environmental / sensor data.

Add new rows here when you add folders under skills/.

Install

Uses the Vercel skills CLI (OpenCode, Claude Code, Cursor, and many other agents).

# List skills in this repo
npx skills add interstitial-systems/skills --list

# Install only Planetary
npx skills add interstitial-systems/skills --skill planetary

# Install everything discovered under skills/
npx skills add interstitial-systems/skills

Install a single skill by path (sparse checkout):

npx skills add https://github.com/interstitial-systems/skills/tree/main/skills/planetary

Claude (claude.ai) custom Skill upload

Anthropic’s product expects a short description (≤200 characters) so Claude knows when to load the skill; the long-form detail stays in the markdown body below the frontmatter (this repo follows that). For upload flows, create a zip whose root is one folder (e.g. planetary/) containing a Skill.md file — see Creating custom Skills. You can copy skills/planetary/SKILL.md to Skill.md inside that folder before zipping. Enable it under Customize → Skills after upload.

Claude Code (plugin marketplace)

This repo includes .claude-plugin/marketplace.json so you can add it as a marketplace, then install the bundled plugin (same pattern as anthropics/skills):

/plugin marketplace add interstitial-systems/skills

Then browse plugins, choose interstitial-skills (marketplace) → interstitial-skills (plugin) → install. New skills under skills/ should be listed in marketplace.json → plugins[].skills when you add them.

Layout

Path	Purpose
skills/	One folder per skill; each contains SKILL.md.
template/	Starter SKILL.md for new skills.
.claude-plugin/	Claude Code marketplace manifest (marketplace.json).

Spec

Agent Skills specification · skills.sh