Each tool has a clearly distinct role: evaluate_spend_gate runs the policy check, approve_spend performs HITL approval, chp_content_hash computes hashes, and chp_version reports versions. No two tools overlap in purpose or could be easily confused.

The names are consistent snake_case and mostly follow a verb_noun pattern (evaluate_spend_gate, approve_spend). The chp_ prefixed helpers break that pattern slightly, but the prefix clearly groups utility/version operations, so the overall convention remains predictable.

Four tools is well-scoped for a narrow CHP Profile B protocol surface: gate evaluation, human approval, hashing, and versioning. Each tool earns its place without redundancy or bloat.

The core lifecycle is covered: evaluate → approve, with supporting hash and version utilities. A minor gap is the absence of an explicit tool to inspect proposal details, but the described results from evaluate_spend_gate include claims and content hashes, so agents can proceed without major dead ends.