Required bits

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

There are no annotations, so the description carries the behavioral burden. It discloses the response composition (difficulty plus three layers and mint count), but it does not explicitly state that the call is read-only or describe error behavior for an unknown/invalid miner. The 'Current' wording implies a query rather than a mutation, which provides partial transparency.

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?

One dense sentence front-loads the core result ('Current PoW difficulty') and fits the additional returned fields into a parenthetical. It is efficient and free of filler, though some jargon such as 'wave base' and 'load regulator' is not expanded.

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?

The description tells an agent what the tool returns at a high level, which is enough to select and invoke it. However, with no output schema, it leaves the exact shape and units of the three layers and mint count unspecified, so it is not fully complete for interpreting the response.

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%, and the schema already documents the miner parameter as a 0x-prefixed EVM address. The description only echoes 'requiredBits(miner)' and adds no meaning beyond what the schema provides, so it sits at the baseline for well-documented parameters.

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 identifies the resource (a miner's PoW difficulty) and names the concrete returned quantities: requiredBits, the three layers, and wallet mint count. It is clearly distinct from sibling tools like get_token or price_info by being mining/PoW-specific, though it lacks an explicit fetch/read verb such as 'gets' or 'returns'.

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?

The phrase 'Current PoW difficulty for a miner' implies when to use this tool: when an agent needs a miner's current difficulty parameters. However, there is no explicit when-not-to-use guidance or differentiation from PoW-adjacent siblings like verify_nonce or craft_info.

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