dsh-plugin-openai-api

An OpenAI-compatible endpoint on a running dsh web server:

GET  /v1/models
POST /v1/chat/completions        (non-streaming and SSE streaming)

Installation

Install the plugin:

dsh plugin --profile web add /path/to/openai-api

(From a DSH source checkout, the same command is pnpm dsh plugin …. A plain path links the source, so edits are picked up on restart. Fresh checkout of this repo: recreate node_modules first — ln -s /path/to/deepseek-harness/apps/cli/node_modules node_modules.)

Uninstall the plugin:

dsh plugin --profile web remove dsh-plugin-openai-api

Restart dsh web after either.

Configuration

Append to ~/.dsh/profiles/web/cordis.patch.yml (the install ships disabled: true):

- id: openai-api
  disabled: false
  config:
    model: default
    apiKeys:
      - local-key

The config block replaces the plugin's defaults wholesale. Set disabled: true to switch the endpoint off. Restart dsh web after changes. All keys are optional:

key	default	what it does
model	default	The model id advertised at /v1/models. A request's model (absent, or this id) → the host's default model selection; any other id is passed through to the session.
provider	host default	The provider route created sessions use.
apiKeys	unset (no auth)	Non-empty array of client keys. When set, a request must present one of them (Authorization: Bearer <key>), else 401. A key identifies the caller; it does not select the preset.
cwd	the dsh web process's working directory	Working directory for created sessions. Must start with /.

Using the API

The contract is OpenAI's — it just works.

import OpenAI from 'openai'

const client = new OpenAI({
  baseURL: 'http://127.0.0.1:3080/v1',
  apiKey: 'local-key', // one of the config's apiKeys
})

// The agent preset rides a header; omit it for the default preset.
const preset = { 'X-Agent-Preset': 'custom-agent-preset' }

const reply = await client.chat.completions.create(
  {
    model: 'default',
    messages: [
      { role: 'user', content: 'What are you? ' },
      { role: 'assistant', content: "I'm a DSH agent." },
      { role: 'user', content: 'Write a haiku about that.' },
    ],
  },
  { headers: preset },
)
console.log(reply.choices[0].message.content)

The same, without an SDK (the Bearer header only when you set apiKeys):

curl -s http://127.0.0.1:3080/v1/chat/completions \
  -H 'content-type: application/json' -H 'Authorization: Bearer local-key' \
  -H 'X-Agent-Preset: custom-agent-preset' \
  -d '{"messages":[{"role":"user","content":"hello"}]}'

Headers

X-Agent-Preset

The agent preset id the session joins — any id in ~/.dsh/.agent-presets/, plus the shipped presets.

• Absent → the default preset (standard).
• Unknown id → 400 with the roster; repeated or comma-joined → 400.
• Resolved at session creation only: the same (key, preset) pair always resumes the same session; a different value is a different session.