Cosmetic: Format JSON in the UI

[jancurn]

To make this look good:

[jancurn]

Ideally we'd format it also in server responses, but I understand that it would consume extra tokens right? So in UI is fine...

[jirispilka]

The problem here is that mcp-server was returning large results and it was breaking clients like claude desktop.

So, we've truncated the response in a very simple and hacky way:

                        const items = await this.callActorGetDataset(tool.actorFullName, args, { memory: tool.memoryMbytes } as ActorCallOptions);
                        const content = items.map((item) => {
                            const text = JSON.stringify(item).slice(0, ACTOR_OUTPUT_MAX_CHARS_PER_ITEM);
                            return text.length === ACTOR_OUTPUT_MAX_CHARS_PER_ITEM
                                ? { type: 'text', text: `${text} ... ${ACTOR_OUTPUT_TRUNCATED_MESSAGE}` }
                                : { type: 'text', text };
                        });
                        return { content };

This effectively breaks the JSON.
Another approach would be to select only a few fields from the JSON or truncate long text fields.
For now, I went with the simpler solution, but this will need to be fixed.

[jancurn]

Oh right, thanks for info, I think we'll need to find some more scalable solution in the future, to select right fields to return