opencode-runtime

OpenCode Runtime

Spawn a Haiku subagent that relays your task to OpenCode via bash. Progress shows in Claude's native agent panel.

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How to delegate

Agent(
  subagent_type="swarm-code:opencode-worker",
  model="haiku",
  prompt="<your full task with all context inline>"
)

The Haiku worker will:

1. ACK via SendMessage
2. Run bash oc-run.sh "<prompt>" → calls opencode run --model <m> "<prompt>"
3. Return the result via SendMessage

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When to use

• Code review of a specific diff or file excerpt
• Writing an implementation plan with clear requirements
• Answering a specific technical question with context
• Any analytical task over ~50 tokens where you'd repeat work OpenCode can do

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When NOT to use

• Tasks that need live file editing (do those yourself)
• Short questions you can answer in one sentence
• Tasks requiring iterative back-and-forth with the user mid-task

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Prompt requirements

Workers CANNOT read files. Include all context inline:

## Task
Review this function for bugs.

## Code
<paste the actual code here>

## Output Format
Bullet list: [SEVERITY] file:line — description. Max 5 findings.

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Model setup

Run /swarm-code:init once per project to configure the OpenCode model. The worker automatically uses the configured model — no manual override needed.