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

No annotations are provided, so the description carries the full behavioral burden, and it discloses almost nothing beyond the basic read action. It does not say whether the read is safe/reversible, what happens when the path is invalid or missing, or how large a returned article may be.

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 short sentences, zero filler, with the core action front-loaded and the input-provenance hint immediately after. Nothing is redundant with the title or schema.

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 simple two-parameter read tool with a fully documented schema and no output schema to explain, the description covers the essential action and input source. The remaining gap is the absence of error/miss behavior, which no structured field supplies since there are no annotations.

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 100%, with both 'path' and 'format' documented including an example path and a description of each enum value, so the baseline of 3 applies. The description adds no parameter meaning beyond reinforcing that 'path' comes from search results.

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 and resource ('Retrieve a full research article') scoped by a lookup key ('by its path'), which separates it from search_research and get_latest_research. It stops short of naming the sibling tools explicitly, so it lands at clear-but-not-differentiated.

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?

'Use paths from search results' gives concrete upstream context for how to obtain the required argument, effectively routing the agent through search_research first. No when-not guidance or explicit alternatives are stated, so it does not reach the top tier.

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