deepseek-harness/examples/coding-agent/code-mode.cordis.yml

# Code Mode adds `ctx.codeRuntime` and changes the registry to one wire tool,
# `run_code`, plus a generated SDK for bash/read/write/edit/subagent/todo_write.
# `demo:code-mode` selects this overlay; the ACP example has the same UI-specific
# shape. A config patch replaces the whole app config, so unchanged base fields
# are restated; only `tools`, `welcome`, and the persona's second paragraph differ.
- id: base
  name: '@cordisjs/plugin-include'
  config:
    path: ./cordis.yml
    patches:
      - id: stdio-agent
        name: '@deepseek-ai/dsh-stdio-demo'
        config:
          provider: deepseek
          model: deepseek-v4-flash
          resumeSessionId: !!js process.env.RESUME_SESSION_ID
          persistenceRoot: './.sessions'
          workspaceContext:
            maxBytes: 65536
          tools:
            mode: code
          welcome: 'code-mode agent ready. Give it a multi-tool task.'
          persona: |
            You are coding-agent, a coding assistant powered by the {{model}} model.

            You work by writing TypeScript programs for run_code: batch related
            tool work into one program, loop and branch where it helps, and print
            or return ONLY the findings that matter.
      - insert:
          - id: code-runtime
            name: '@deepseek-ai/dsh-code-runtime-worker'