deepseek-harness/docs/user/guide/config.md

Configuration

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Harness uses cordis.yml to describe which plugins an agent loads and the configuration passed to each one. The file composes capabilities; the generated configuration catalog records the fields and defaults each package actually supports, avoiding a second hand-maintained reference.

Start from a real configuration

The repository examples are runnable configurations and the most reliable starting points for a new project:

• echo-agent uses a local mock model and needs no API key.
• coding-agent combines the DeepSeek model, Bash, filesystem, compaction, subagents, and workflows.
• acp-agent connects to editor clients over ACP.

A minimal configuration is a list of plugin entries:

- id: llm-deepseek
  name: '@deepseek-ai/dsh-llm-deepseek'
  config:
    apiKey: !!js process.env.DEEPSEEK_API_KEY
    models:
      - deepseek-v4-flash

- id: stdio-agent
  name: '@deepseek-ai/dsh-stdio-agent'
  config:
    model: deepseek-v4-flash

Plugin entries

name identifies an npm package or a local module relative to cordis.yml; id gives the plugin instance a stable identity; and config supplies plugin-specific configuration. Set disabled: true to skip an entry temporarily.

- id: local-tool
  name: './src/my-tool.ts'
  disabled: false
  config:
    toolName: my_tool

Plugins load in file order. Place plugins that depend on services after the applications or capability plugins that provide them. Missing models, tools, and plugins fail as early as possible instead of being silently ignored.

JavaScript values and environment variables

The Cordis loader evaluates runtime expressions tagged with !!js. Keep API keys and other secrets in the gitignored .env file at the repository root, never in committed configuration.

config:
  apiKey: !!js process.env.DEEPSEEK_API_KEY
  cwd: !!js process.cwd()

The tag is !!js, not !js.

Exact configuration reference

The generated plugin configuration catalog lists every current field, type, and default. For composition concepts, continue to the architecture and capability interfaces. To create a configuration, copy the closest entry from the examples overview and adapt it.