Goal: we want to allow agent profiles to specify which tools the agent has access to. Consequently we remove the on/off

enable sub-agents

and

enable switch llm

since those features can be specified via tool selection. Question: if the canvas must be backward compatible with older sdks, should I keep a soon-to-be-deprecated branch with toggles for when a user links the latest canvas to an old SDK? I am asking because having newer canvas being compatible with older SDKs introduces lots of complexity in the code @modern-fireman-99755 @limited-student-10747

I'd say just increase the minimum SDK version variable in canvas and require people to upgrade the sdk

ok! better this than too complex code

> keep a soon-to-be-deprecated branch with toggles for when a user links the latest canvas to an old SDK? I think an agent-canvas version should be always used with the linked agent-server version. Otherwise it is really difficult to maintain. Perhaps, double-check if there is no a setting json somewhere which will not be backward compatible after the changes you mentioned. Best test is to deploy the branch on the VM and see if everything work smooth 🙂

I think an agent-canvas version should be always used with the linked agent-server version.

but we do have a

minimum SDK version available

field

ah ok sorry... i thought it was pinned... but it is using the linked version just if the FE spin up the BE

fe spin up the be?

Whenever canvas starts its own backend (

npx @openHands/agent-canvas

, the Docker image,

npm run dev

), it runs the pinned

versions.agentServer

, so the minimum never comes into play. But you can spin up canvas FE only with the flag

--frontend-only

and then connect to a BE somewhere on a cloud (for example). In this case the

versions.minimumAgentServer

plays a role. You can connect a FE to a BE (agent-canvas to agent-server) if and only if

versions.minimumAgentServer

is <= of the version of the agent-server you want to use as BE.

Yeah, that’s right. But there are cases where the BE is spun up separate from the frontend, and some are backward compatible some are not. That’s why we have minimumAgentServer