OpenCode Implementer

Overview

This skill executes code implementation using OpenCode CLI after specifications are created.

When to Use

After running specification-engine and having a SPEC.md, use this skill to implement features.

Two Modes

Mode 1: One-shot implementation

Use the opencode tool for single tasks:

opencode({
  instruction: "Create a React counter component",
  directory: "/path/to/project",
});

Mode 2: Interactive TUI

For complex implementations, interact with OpenCode directly:

// Just type "opencode" - no tool needed
// This opens an interactive terminal where you can:
// - Use slash commands: /speckit.specify, /speckit.plan, etc.
// - Run multiple operations
// - Iterate on the implementation

Execution Flow

1. •Read SPEC.md to understand requirements
2. •Plan implementation based on spec
3. •Execute using opencode tool or TUI
4. •Verify implementation matches SPEC.md

Example Workflow

1. opencode tool: Create new feature
2. Or type: opencode (for interactive mode)
3. Inside TUI: /speckit.specify → make changes → /speckit.implement

Parameters (for tool mode)

Guardrails

• •FORBIDDEN tools: write, edit
• •ONLY use: opencode CLI
• •Must have SPEC.md before implementing

Composability

• •Required with: specification-engine
• •Runs after specification is complete