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

With no annotations and no output schema, the description carries the full burden. It discloses only that the ledger is "public", which weakly implies no auth and read-only access, but says nothing about result shape, pagination, match semantics, or whether an empty query returns everything.

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 front-loaded sentence that wastes no words and identifies the target resource immediately. It is appropriately sized, though its brevity leaves the surrounding gaps unfilled.

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 tool with no annotations, no output schema, and an undocumented parameter, the description is too thin to let an agent call it correctly. It should at minimum clarify whether query is optional, what fields are searched, and how this relates to the sibling listing/get tools.

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 single query parameter carries no type detail, format, or examples; the description adds no syntax or matching-behavior information either. Since required-parameter count is 0, it is also unclear what an omitted query does, which the one-sentence description never addresses.

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?

States a specific verb ("Search") and a concrete resource ("Humanity Loop's public dead-end and rejected-path ledger"), so an agent knows it queries recorded failures and rejected approaches. It does not, however, distinguish itself from sibling list_/get_ tools like list_actions or get_project, so routing still requires inference from the verb alone.

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 invoke this versus the ten sibling tools, and no mention of whether query is required or how results differ from list_actions. The agent must guess whether this is the canonical way to find abandoned approaches.

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