Currently some TCK tests are running in CI ([run-tck.yaml](https://github.com/a2aproject/a2a-python/blob/main/.github/workflows/run-tck.yaml)) for JSON-RPC (see #639). This should be done as a part for 1.0 migration as well. It is setup for Java 1.0 RC [here](https://github.com/a2aproject/a2a-java/blob/main/.github/workflows/run-tck-1.0-wip.yml) against a [a2a-tck/spec_1.0](https://github.com/a2aproject/a2a-tck/tree/spec_1.0) branch.