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Harness Support

Compare you-agent-factory harness support across claude, codex, opencode, pi, cursor, and agy for Model Context Protocol (MCP), worktrees, loop, thinking controls, open source, and external models.

Support Matrix

Compare factory-supported harnesses across MCP, worktrees, loop, thinking controls, open-source status, and external model support. Cell values are yes, no, or partial.
Featureclaudecodexopencodepicursoragy
MCPyesyesyespartialyespartial
Worktreesyesyesyespartialyespartial
Loopyesyesyesyesyesyes
Thinking controlsyesyespartialpartialyespartial
Open sourcenonoyesyesnopartial
External model supportpartialpartialyesyespartialpartial

How To Use

Start with the feature you need — for example MCP, worktrees, or external models — then scan that matrix row across harness columns. Prefer a harness marked yes for that feature; treat partial as incomplete or uncertain coverage, and skip no. Use the related links when you need the harness concept, worktree or loop ideas, thinking controls, CLI commands, or configuration details.

Limits And Assumptions

Harness Support is a matrix reference for harness feature coverage. It is not a full runner or provider field dump, not a sync of packaged CLI docs, not the harness concept glossary, and not an agent-factory comparison blog. Claims stay conservative when product evidence is incomplete: partial cells mark uncertain or incomplete coverage rather than inventing full support.

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