harness

What it means

The runtime around a model: the loop, the tools, isolation, process supervision, and anything that can advance or block work even if the model does not feel like cooperating. A harness is the thing this pack installs into — it is not something this pack ships itself.

In this fork

Claude Code and Codex are harnesses. So is SwarmForge, in a heavier, more independent sense: see Skills, flows, and harnesses for the full comparison. A useful test for whether something is a harness rather than a skill or flow: if the model ignores the markdown, does the next step still happen anyway? If yes — a daemon, a test gate, an approval UI, a worktree supervisor — that's a harness.

See also

• Skills, flows, and harnesses — the fuller "four layers" picture this term is one layer of.
• aihero.dev's harness entry — the general, industry-wide definition this page narrows for this fork specifically.