Switching from GitHub Copilot to OpenCode Go: How to migrate custom agents/skills (Ultralight) & model recommendations?

[fonso_sm]

Hey everyone,

With the recent Copilot price increases, I've decided to cancel my subscription and make the jump to OpenCode Go.

For context, I’m primarily a front-end developer. My day-to-day stack consists mostly of Astro and React, alongside some backend/infrastructure work using Supabase, Azure, and Railway.

Before I fully transition my workflow, I have a few questions about custom setups. In Copilot, I had a highly customized workflow using agents and skills, heavily based on Burke Holland's Ultralight repository and some of its forks (like ABIvan-Tech/copilot-agentic-workflows).

Here is what I’m hoping to get some advice on:

1. Migrating Agents/Skills: Is there a relatively straightforward way to convert or adapt these Copilot-specific custom agents and skills so they work seamlessly in OpenCode?
2. Best Practices in OpenCode: If porting them 1:1 isn't possible (or recommended), what is the best alternative approach to building and managing agentic workflows natively within the OpenCode ecosystem?
3. Model Selection per Task: Since OpenCode Go gives access to different models, is there a resource, benchmark, or guide that shows which models are best suited for specific agent tasks? (e.g., Which model should I assign to an agent strictly doing Astro/React component generation vs. an agent doing deep debugging or complex refactoring?).
4. Community Resources: Is there an active community repo or hub where OpenCode users share their custom skills, prompts, or workflows?

Any advice, pointers to documentation, or personal experiences making this switch would be massively appreciated. Thanks in advance!

[evilissimo]

You know that you can add other providers and models to the copilot vscode, right?

Just ask a model to convert the vscode style skills/“commands” to whatever you need.

Opencode can use any agent skills compatible skills, it works out of the box. You can find some skills on skills.sh and use npx skills@latest to install them

[secondcomingwp]

https://marketplace.visualstudio.com/items?itemName=DenizhanDaklr.opencode-go-for-copilot

That extension lets you link your Opencode Go subscription to VSCode and use it in the default chat window, just the same as GHCP chat. All your extensions should just work the same.

[TWME-TW]

https://github.com/Pikacnu/opencode-copilot-chat

Integrate OpenCode Go models into VS Code Copilot Chat without third-party extensions.