deepseek-harness/examples

Examples

Runnable demos (not workspaces) that showcase how the harness is wired.

echo-agent

A mock model + echo tool + stdio UI + JSONL persistence demo. Demonstrates:

• Loading plugins from a cordis.yml via @cordisjs/plugin-loader + @cordisjs/plugin-include
• Registering a mock LlmAdapter (streaming scripted responses)
• Registering a tool via ctx.tools.register()
• Persisting session events to JSONL via the session/event + session/flush pattern
• A minimal stdio UI consuming agent/stream-chunk and session events

Run with: yarn demo:echo

When prompted, type "echo " to trigger a tool call round-trip.

coding-agent

The real thing: DeepSeek V4 + the bash tool suite + stdio chat + JSONL persistence, wired from cordis.yml. Where echo-agent proves the skeleton with mocks, this is a usable coding assistant.

Run with: yarn demo:coding (needs DEEPSEEK_API_KEY in the environment or a gitignored repo-root .env). See coding-agent/README.md for details.