deepseek-harness/examples

Examples

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Runnable demos (not workspaces) that showcase how the harness is wired. Each example is a thin leaf: either a cordis.yml tree that picks swappable backends and loads one app package, or an overlay — a patch list dsh --config applies over the shipped composition (apps/cli/config/base.cordis.yml plus a surface overlay). Bundled compositions live in @deepseek-ai/dsh-cli-demo, @deepseek-ai/dsh-acp-demo, and their shared @deepseek-ai/dsh-agent-spine-demo bundle; the dsh surfaces use flat config trees instead. There is no start.ts; the terminal demo:* scripts boot through the dsh CLI, and the headless/ACP scripts invoke the cli-demo/acp-demo bins.

headless-agent

A non-interactive agent demo that accepts one positional task, runs one complete model/tool turn on the @deepseek-ai/dsh-cli-demo app, persists a fresh session, prints text, json, or stream-json, and exits.

Run with: pnpm run demo:headless "task" (needs DEEPSEEK_API_KEY). See headless-agent/README.md for the output contract, safety boundaries, and snapshot suite.

jsonrpc-agent

An unattended coding agent driven through the Python SDK: JSON-RPC stdio, foreground-only bash, read / write / edit, one foreground subagent, todo_write, JSONL persistence, and compaction. It excludes terminal UI, stdout logging, approvals, skills, and background task controls. See jsonrpc-agent/README.md.

web-cordis

The self-referential demo: the coding spine plus @deepseek-ai/dsh-tool-cordis, whose three tools (cordis_inspect / cordis_mount / cordis_unmount) let the agent inspect the current DSH process, mount model-written temporary Plugins (an event listener, a brand-new tool, or a service another temporary Plugin injects), and unmount them again. These Plugins exist only in memory and share one internal cordis-dynamic fiber subtree; ctx.fs/ctx.web ride along provider-only as capabilities they can use.

Run the browser UI at http://127.0.0.1:3081 with pnpm run demo:cordis, or the ACP server with pnpm run demo:cordis acp (both need DEEPSEEK_API_KEY). See the toolset Agent Note for the design and sandbox caveats.

acp-agent

An agent exposed as an Agent Client Protocol (ACP) automation server over JSON-RPC stdio, via @deepseek-ai/dsh-acp-demo. Programmatic clients create fresh sessions, send text prompts, consume committed assistant text, answer one-shot permission requests, and cancel work. It owns the ACP keyless snapshot suite.

Run with: pnpm run demo:acp (needs DEEPSEEK_API_KEY); pnpm run demo:code-mode boots the same server in Code Mode via the code-mode.cordis.yml overlay. See acp-agent/README.md for the protocol and snapshot-test contracts.

The default cordis.yml composes @deepseek-ai/dsh-sandbox-local, @deepseek-ai/dsh-bash-sandbox, and @deepseek-ai/dsh-user-approval. workspace-write confines bash and filesystem mutations to each session workspace; a wider retry becomes a one-shot machine permission request over ACP.