You have already seen how an agent can use tools, follow workflows, remember useful context, and work inside a scoped environment.

That gives one agent a lot of reach. But as the task grows, everything starts competing for the same attention: more files, more searches, more decisions, more unfinished work.

A single agent is not automatically incapable in that situation. It may simply be carrying too much at once inside one context.

A multi-agent system splits the work across several focused contexts. One agent might research. Another might analyse. Another might write. Another might review.

The important part is not adding agents for decoration. The point is to keep work separated while preserving one shared goal.

Only the useful result needs to move forward. That is how a larger task can stay organised instead of becoming one crowded conversation.