Could naval limits keep Germany weaker than France?

If France wanted Germany kept weak enough to prevent another invasion, how could it safely include Germany in the treaty system?

France could admit Germany to naval treaties at a lower ratio, such as half French strength, restoring status while preserving a clear security margin.

The proposal admits Germany to naval negotiations while fixing its fleet below French strength. A ratio near one German ton for every two French tons would restore a measure of national status without creating naval parity. Permitting controlled warship construction could also channel German industrial investment into a treaty-bound fleet. The idea leaves land restrictions separate while using naval participation to make the wider settlement more durable.