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Copilot CLI — Commands

File format
Markdown
Discovery path
.copilot/commands
Global install path
~/.copilot/commands
Syllago install method
Symlink, Direct copy
Symlink support
Yes
Native frontmatter fields
name, description, agent, model, tools, argument-hint

Features

How each feature converts to syllago's canonical format. See format conversion for what these statuses mean.

Fields

Native frontmatter or config fields this provider exposes. The first column is the provider's own field name; the canonical key column links to syllago's cross-provider equivalent.

Provider fieldConversionCanonical keySummary
plugin.json Not portable Conversion type: Not portable Unique to this provider — can’t be carried across providers. Learn more → Every plugin needs a plugin.json declaring name and optional metadata plus component path overrides (agents, skills, commands, hooks, mcpServers, lspServers).

Other features

Behaviors, conventions, and capabilities that aren't tied to a single named field — things like path-based activation, discovery rules, and lifecycle behavior.

FeatureConversionSummary
Plugin Marketplace System Not portable Conversion type: Not portable Unique to this provider — can’t be carried across providers. Learn more → Plugins install from marketplaces (default copilot-plugins, awesome-copilot) defined by a marketplace.json file; custom marketplaces support private distribution.
Plugin System as Commands Distribution Mechanism Not portable Conversion type: Not portable Unique to this provider — can’t be carried across providers. Learn more → Copilot CLI has no standalone slash-commands type; extensibility ships via plugins that bundle agents, skills, hooks, MCP, and command dirs.

Sources

Source
https://raw.githubusercontent.com/github/docs/main/content/copilot/concepts/agents/copilot-cli/about-cli-plugins.md
https://raw.githubusercontent.com/github/docs/main/content/copilot/reference/copilot-cli-reference/cli-plugin-reference.md
https://raw.githubusercontent.com/github/docs/main/content/copilot/how-tos/copilot-cli/customize-copilot/plugins-creating.md