Glad to hear it worked as advertised! Sorry, not super familiar with evil (on vanilla keys here). Please send a PR if you find out how to configure for evil so we can document in README.
While most IDEs converged to a unified web solution, pockets of devoted users continued to volunteer improvements/integrations for their preferred editors.
During my time there, a relatively small, but fairly active Emacs group, would often share tips, tricks, and elisp integrating the latest internal tools.
From my experience, you kinda get what you ask for. If you don't ask for anything specific, it'll write as it sees fit. The more you involve yourself in the loop, the more you can get it to write according to your expectation. Also helps to give it a style guide of sorts that follows your preferred style.
I put off adopting popular agents for most of 2025 primarily because there was no agent-agnostic path to first-class Emacs integration. That changed with ACP (https://agentclientprotocol.com), thus I started working on agent-shell.
I'm happy with how the integration is shaping up, enabling me to have my cake and eat it too (Emacs + AI agents).
I tried it and was underwhelmed. Without /resume or /rewind, it's unusable. After Opencode botched a simple yes/no (yesterday's top HN story), I'm convinced the frontier model companies will continue expanding the usability gap between their proprietary harnesses and the open-source ones.
Resume is supported by agent-shell, but is dependent on agent's to implement the relevant ACP. Do you know if OpenCode's ACP implementation has listing and resuming session support?
I've yet to play with Emacs MCPs thoroughly. Having said that, after initial exposure to agent skills directing agents to just use CLI/emacsclient, I no longer think I need to go deeper into MCP. emacsclient via CLI has been working remarkably well. Did a little video on that https://www.youtube.com/watch?v=ymMlftdGx4I