Function verify_binding 

pub fn verify_binding(
    response: &Value,
    expected: &Identity,
) -> Result<(), Failure>

Checks the node returned the binding that was asked for.

This is the step whose absence is silent. Creation is idempotent by design, so a request that reuses an existing workspace answers 200 with a receipt; without comparing identities, a receipt for somebody else’s change reads exactly like success, and the adapter hands an agent a directory bound to a change it may not checkpoint.

Errors

Returns a Failure when either identity is missing from the response or differs from the expected one.