Feature request: Start and continue a session with opencode run -s (modify flag behavior)

[621625]

Hi guys,

Hope you are well.

I would like to make a feature request, I think this would be a wise and efficient design choice, even somewhat popular:

Modify the behavior of the opencode run --session flag.

Current behavior:

Input: opencode run --session ses-abc (or abc) hello
Output: "Resource not found" (if ses-abc) or "Invalid string - must start with ses" if plain abc.

Desired behavior:

Input: opencode run --session abc hello
Output: "Hello how can I be of assistance?"

Here opencode will create session abc if it doesn't exist and continue it if it exists.

Implement this, it's a good idea. Trust me.

[rekram1-node]

The --session is meant to continue a given session, with this behavior it would be harder to detect if the session you passed even exists wouldnt it?

As in there is some tradeoff of not erroring

[621625]

No this is trivial. If the session exists, resume it. If the session does not exist, create it and run it. This is how it should be from an UX/UI viewpoint. It makes users feel safe, comfortable and empowered. It's efficient.

I can't find the session ID's at all so I don't know how to manipulate them yet. Is there a folder full of session ID's? Surely we don't have to go into TUI to get the session ID's, right?

[rekram1-node]

we only really surface them via the opencode export command

[tomjose92]

In addition to the example given in the description, I would like to have this feature so that a meaningful title can be provided when creating the session.
My current flow invokes multiple Agent skills as part of a single session, but the name is based on the first skill (which is very vague). It would help if i can configure the session id name, so that when going through sessions, i can easily be able to identify by some metadata added to the session name

[mingfai]

Trying to switch from Github Copilot CLI to OpenCode. The former uses uuid as session id, and allow using a non-existed uuid to start, so I make an alias that generates a uuid with the project path as session id parameter, so whenever I start a CLI at a particular project root, it always use the same session id.

Other than this session resume feature, OpenCode is way better overall. Really wish Opencode has an equivalent way to resume session.