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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile is covered. The description usefully adds the ordering ('newest first') and the fact that only open projects are included, but it says nothing about result-set size, how cursoring works, or whether the query is matched against title/brief only.

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 front-loaded sentence listing scope, ordering and returned fields with no filler. It is a fragment rather than a full sentence, but nothing is wasted.

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?

There is no output schema, so naming the returned fields is valuable, but pagination behavior (the cursor parameter) and how query matching works are left unexplained for a five-parameter search tool.

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%, so limits, date formats, the category enum and cursor semantics are already documented there, giving at least a baseline 3. The description adds a bit by naming the facets the result carries (budget, category, proposals, brief start), which helps interpret category and query choices.

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?

It states a specific resource and scope: open projects posted by buyers, returned newest first. That distinguishes it from get_project (single) and list_my_projects (own projects), but it never contrasts itself with the closest sibling, search_offers, or explains what 'open' excludes.

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?

No when-to-use statement, no alternatives named, and no guidance on combining query/category/since or on paging with the cursor. The agent has to infer all invocation strategy from the schema.

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