Backends

Promptmd can run prompts using different backends.

• opencode (recommended): runs prompts via the OpenCode CLI with streaming
• subprocess: runs prompts by spawning a command you control
• mock: no AI calls; useful for trying out workflow mechanics

Pick a backend in a .promd config file (project or global) or override with --backend.

backend: opencode
opencode:
  model: anthropic/claude-sonnet-4

Backend docs:

• Opencode
• Subprocess
• Mock