Scenario 20: Inspect supported platforms before targeting

Use this when planning which harnesses to use as main and aliases, or when an unfamiliar harness ID appears in someone else's plugin.

Frequency: Occasional · Status: Shipped

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Use this when planning which harnesses to use as main and aliases, or when an unfamiliar harness ID appears in someone else's plugin.

Typical commands:

harnesstap harness list
harnesstap harness list --supported
harnesstap harness list --format json | jq '.[] | {id, supports}'

The registry is the source of truth for the harness IDs that HarnessTap understands today, and tells you which feature surfaces (instructions, skills, rules, MCP, hooks, agents, commands, …) each harness supports.