acp-extension-dsh

ACP session controls and a pinned coding profile for
DeepSeek Harness.

The package is a Cordis plugin, not a replacement for Harness. It adds ACP model,
reasoning-effort, permission, and agent-preset selectors, and mounts ACP-provided
stdio or Streamable HTTP MCP servers into each Harness Agent scope. Harness
continues to own model execution, sandbox enforcement, persistence, preset
composition, tool execution, and one-shot approvals.

Exports

• acp-extension-dsh exports the Cordis plugin: apply, inject, and name.
• acp-extension-dsh/capabilities exports the selector vocabulary for host UIs.
• acp-extension-dsh/profile exports the pinned Harness package set and ACP
  host-composition builder.

The host launches the pinned dsh-acp-demo executable with the generated
composition and stages this package's official
standard/code/minimal/cordis preset snapshot beside the ACP adapter.
Harness mounts the selected preset per session and also discovers user presets
below $DSH_HOME/.agent-presets. MCP tools use Harness's native
mcp__<server>__<tool> naming and are removed with their owning ACP session.

Development

npm install
npm run build
npm test
npm run format:check

Node.js 22 or newer is required.