dsh-muse-subagent

A persistent DeepSeek Harness bundle that exposes an authenticated Muse Code CLI as the one-shot subagent_muse tool.

What it does

• Registers a muse provider on ctx.subagents.
• Adds a dedicated static subagent_muse tool. Its model-facing description mentions the WSL/Windows-filesystem boundary only when the Harness host runs on Windows; Linux and macOS retain the original wording.
• Runs muse exec --json in the parent session's workspace.
• Uses the Harness ctx.subprocess service for environment scrubbing, process ownership, cancellation, and teardown. Native execution gets the full managed-range guarantee; WSL has the boundary documented below.
• Returns only Muse's authoritative final text. Raw JSONL events, stderr, tool traffic, reasoning, and workspace diffs stay out of the parent model context.
• Supports foreground and generic Harness background-job execution.

The provider intentionally advertises no optional start capabilities. Dynamic agent/model options, output schemas, personas, tool filters, and Harness depth limits are rejected instead of silently ignored. A model can be fixed in the plugin configuration.

Runtime discovery

runtime controls where Muse runs:

• auto (default): resolve command natively first. On Windows only, fall back to wsl.exe and run wslCommand in the default or configured distribution.
• native: require a native Muse executable.
• wsl: require WSL and run Muse there.

On WSL, Windows workspace and temporary prompt-file paths are translated to /mnt/<drive>/...; a distribution is inferred from \\wsl$/\\wsl.localhost paths when needed. The Harness owns the Windows wsl.exe relay, while guest-process quiescence ultimately depends on WSL terminating the relayed Linux command.

Configuration

Field	Default	Meaning
providerName	muse	Registry name consumed by the tool row
runtime	auto	auto, native, or wsl
command	muse	Native executable name or absolute path
wslExecutable	wsl.exe	Windows WSL launcher
wslDistribution	default distro	Optional distribution name
wslCommand	muse	Muse command inside WSL
provider	Muse default	Optional Muse provider override
model	Muse default	Optional Muse model override
preset	Muse default	Optional Muse preset
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