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

Annotations already declare readOnlyHint=true, idempotentHint=true and destructiveHint=false, so safety is fully covered without prose. The description confirms the return is a set of doc ids and that prefix scoping is optional, which adds a little context, but says nothing about ordering, completeness, or how the prefix is matched.

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, front-loaded with the primary action and followed by the optional modifier. No filler, nothing repeated from the title.

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 described, and the tool has one optional parameter. For a simple discovery tool this is essentially complete; only the prefix matching behavior and result ordering remain unspecified, which is minor.

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% for the single 'prefix' parameter, so the description must compensate, and it does: it explains the parameter's purpose (scoping the listing) and gives a concrete example value ("features"). It stops short of stating match semantics (path-prefix, case sensitivity), keeping it from a 5.

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 ("Lists the available Payram doc ids") that is immediately distinguishable from the sibling get_payram_doc_by_id, which retrieves a single doc. It does not explicitly name that sibling, but the listing semantics are unmistakable.

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 optional prefix clause implies usage (narrow the listing, e.g. by "features"), which is genuinely useful. However, it never states when to use this discovery tool versus get_payram_doc_by_id, so the workflow relationship between the two is left to inference.

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