cache_block

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

No annotations are provided, so the description carries the full burden, yet it discloses nothing about write/overwrite semantics, persistence, whether existing cached values are replaced, coordinate frame expectations, or permissions. 'Cache' weakly implies storage but leaves all operational behavior to inference.

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?

A single short, front-loaded sentence with no filler. However, the brevity reflects under-specification rather than efficient communication, since key operational details are omitted.

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?

An output schema exists so return values need not be explained, but for a 4-parameter mutation tool with no annotations the description is far too thin. An agent lacks enough information to call it correctly regarding block_state format, overwrite behavior, and how it relates to get_cached_block.

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 description coverage is 0% and the description adds no meaning for any of the four required parameters. The names x, y, z, and block_state are somewhat self-explanatory, but the accepted format for block_state and the coordinate frame are undocumented in both the schema and the description.

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 states a verb and resource ('cache block state information'), but the verb is ambiguous – it does not clarify whether this stores state into a cache or retrieves cached state, which matters because the sibling get_cached_block exists. It is more specific than a tautology but gives no scope or differentiation from siblings.

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?

There is no guidance on when to use this tool versus get_cached_block or clear_cache, nor any prerequisites or conditions. The agent must infer usage entirely from the name and sibling list.

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