Make room for useful detail
A longer, coherent instruction set can cover different needs: what to do, when to ask, what to verify, and how to report the result. Requiring a delivery report to distinguish confirmed delivery from an attempted send is a useful clarification. Whether it improves actual reporting still needs observation.
Resolve the competing demands
Imagine instructions demanding an immediate answer, clarification whenever anything is uncertain, brevity, and a full explanation of every qualification. Each aim has a purpose. Together, these absolutes leave priorities unresolved.
A repair could replace them with a conditional rule: clarify a missing fact when it could change the answer materially; otherwise give a concise answer that retains important qualifications. This adds decision guidance while revising the conflicting demands. Merely appending it beneath those absolutes would leave the conflict intact.
This is an illustrative policy, not an optimal wording established by experiment. Repetition might affect compliance, but repeating evidence cannot make its sources independent. Those are different questions; neither is answered by counting sentences.
Pause here: Does this addition settle a choice the system must make, or merely insist that it make all the choices at once?
Judge the change in use
PHS's admission doctrine asks what understanding each section supports. Its Memory selection mathematics addresses required coverage, budgets, and duplicated evidence. The regulator design places authority before relevance. These sources suggest editing questions; they are not measurements of repeated instructions.
Compare otherwise similar runs on straightforward requests and materially ambiguous ones. Did clarification reduce unsupported answers without producing needless questions? Did delivery reports match actual records? That would be a proposed test of behavior, not a test performed here.
A tidy set of instructions still cannot create a missing tool or delivery receipt. Adding, removing, and rewriting can each be useful when they address the actual cause.
My answer: More instructions can improve reliability when they fill gaps or resolve conflicts with clear scope and priority. Assess that improvement through relevant behavior. The length of the list tells us only how much was written.