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valtterimelkko
valtterimelkkoCOMMUNITY
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opencode-plugin

Develop custom OpenCode CLI plugins with ESM, Zod, and BunShell.

1|1|Updated Jun 11, 2026
Search Tags:#automation#javascript#cli#plugin#opencode#esm
One-click install
npx skills add https://github.com/valtterimelkko/agent-workflow-skills --skill opencode-plugin-valtterimelkko
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: opencode-plugin
Source: https://github.com/valtterimelkko/agent-workflow-skills/tree/main/skills/opencode-plugin
Command: npx skills add https://github.com/valtterimelkko/agent-workflow-skills --skill opencode-plugin-valtterimelkko

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @opencode-ai/plugin, zod.

What problem does it solve?

This skill provides a comprehensive framework for extending the OpenCode CLI, allowing developers to build custom tools, automate agent workflows, and inject persistent context into LLM sessions.

Core Features & Use Cases

  • Custom Tool Registration: Define and register bespoke tools that the LLM can invoke to perform specific actions like file management or API interactions.
  • Lifecycle Hook Integration: Intercept agent events, modify system prompts, and manage shell environments to tailor agent behavior to specific project needs.
  • State Management: Implement persistent storage and session-aware logic to ensure agent continuity across multiple interactions.

Quick Start

Use the opencode-plugin skill to guide the creation of a new plugin that registers a custom tool for project documentation.

Frequently Asked Questions about opencode-plugin

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I develop and integrate custom tools for the OpenCode CLI?▼

To develop custom OpenCode CLI tools, you create an ESM-based module that registers bespoke tools for the LLM to invoke, enabling project-specific actions like file management or API interactions.

Can I use lifecycle hooks to manage agent behavior and shell environments in OpenCode?▼

Yes, OpenCode plugin development supports lifecycle hook integration, allowing you to intercept agent events, modify system prompts, and manage shell environments to tailor agent behavior to specific project needs.

How do I handle persistent session state and context injection for LLM agents?▼

You handle persistent session state by implementing persistent storage and session-aware logic within your OpenCode plugin, ensuring agent continuity and injecting persistent context across multiple interactions.

Do I need Zod and ESM modules to build OpenCode CLI plugins?▼

Yes, building OpenCode CLI plugins requires ESM-based module development for the architecture and Zod-based schema validation to ensure structured data handling and tool registration.

What is the best way to automate agent workflows and execute shell commands in OpenCode?▼

The best way to automate agent workflows is by developing a custom plugin that utilizes BunShell-based command execution, enabling tailored shell environment management and automated agent tasks.

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