crickets generates native host plugins from src/<group>/ into committed dist/<host>/plugins/<group>/. This uses the source → generator model. Each primitive kind lands at a host-specific path inside that plugin. The host's plugin manager installs the whole plugin (claude plugin install / agy plugin install <path>). Nothing is copied into .claude/ or the project tree. This page shows the kind → in-plugin path lookup, per host.

Paths are relative to the plugin root, dist/<host>/plugins/<group>/.

Kind	Claude Code	Antigravity
skill	skills/<name>/SKILL.md	skills/<name>/SKILL.md
agent	agents/<name>.md	agents/<name>.md
command	commands/<name>.md	commands/<name>.md
hook	hooks/hooks.json + hooks/<name>/	hooks.json (plugin root) + hooks/<name>/
snippet	— dropped (no instruction-file primitive)	rules/<name>.md
plugin manifest	.claude-plugin/plugin.json	plugin.json (plugin root)
scripts/ (group asset)	scripts/<name>	scripts/<name>

See Hooks for what each hooks/<name>/ dir contains. It also shows how hooks run from the plugin.

• Plugin manifest. Claude Code reads .claude-plugin/plugin.json. Antigravity reads plugin.json at the plugin root.
• Hook manifest. Claude wraps the hook records in hooks/hooks.json. Antigravity keys them in hooks.json at the plugin root. Antigravity runs plugin hooks observe-only. See Compatibility for details.
• Snippets. Antigravity ships instruction files. A snippet emits to rules/<name>.md. Claude Code has no instruction-file primitive in the plugin surface. You will see snippets dropped. The generator logs each drop.
• Marketplace pointer (repo root, for <host> plugin marketplace add): Claude uses .claude-plugin/marketplace.json. Antigravity uses .agents/plugins/marketplace.json.
• MCP servers. No mcp-server primitive ships today. It is reserved-unused. The host shapes differ when one lands. Claude Code reads .mcp.json (or inline config). Antigravity reads mcp_config.json. Antigravity requires a serverUrl and strict JSON. It has no timeout field.

The generator mirrors the source layout. You author a skill at src/<group>/skills/<name>/SKILL.md. It emits to dist/<host>/plugins/<group>/skills/<name>/SKILL.md for each host in its supported_hosts. Agents, commands, hooks, and snippets follow the same src/<group>/<kind-dir>/… → in-plugin-path rule. A group's scripts/ dir copies wholesale to the plugin. Run python3 scripts/generate.py build after editing src/. See Modify a plugin.

Paths are relative to the plugin root, dist/<host>/plugins/<group>/.

Kind	Claude Code	Antigravity
output-style	output-styles/<name>.md	output-styles/<name>.md
rule	rules/<name>.md	rules/<name>.md

These two ship as of v3.13–3.14. The development-lifecycle plugin ships terse and edit-over-write. The kind enum also allows mcp-server, status-line, workflow, and settings-fragment. No primitive uses them today. The full enum lives in Manifest Schema.

• Plugin anatomy — what a plugin is + its overall structure.
• Customization Types — what each kind means.
• Manifest Schema — the frontmatter + group.yaml contract.
• Modify a plugin — edit src/, regenerate, dogfood.
• Install crickets plugins — how the host installs a plugin.