Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are supplied, so the description carries the full burden. It does add genuinely useful behavioral context — every entry is backed by a real X1 transaction signature and is externally auditable — which tells the agent the data is trustworthy and verifiable. However, it omits ordering, what an entry contains, whether results are paginated beyond the schema's limit, and any permission or rate considerations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences, no filler, with the value proposition front-loaded ahead of the optional filter note. Every clause earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a two-parameter read tool with no annotations and no output schema, the description covers purpose and trust model but leaves gaps: the shape of a returned entry, default ordering, and how far back the ledger goes are unstated. Adequate but not complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so both parameters are already documented in the schema. The description restates the renter filter ('Optionally filter by renter wallet') without adding format, matching, or default behavior beyond it, and never mentions limit. Baseline 3 applies when the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific resource — a verifiable proof-of-work ledger for hired agents — and states its defining property (each entry carries a real X1 transaction signature, auditable on the explorer). The verb is implied rather than stated (it reads as a read/list operation via 'optionally filter by renter wallet'), and it does not explicitly distinguish itself from siblings like rental_agents or rental_plans, so it falls short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is only implied: the phrase 'the labour you paid for can be audited' suggests the tool is for post-hoc verification of hired-agent work, but there is no explicit when-to-use instruction, no exclusions, and no pointer to rental_agents/rental_plans for the hiring step. An agent can infer the context but must do the routing work itself.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.