server_overview

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. It hints that the output is a summary of server-side concepts, but does not disclose whether the call is read-only, how large the response is, whether it is cached, or what the return shape looks like for a zero-parameter tool.

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 with the verb first and no filler. It is efficient, though it borders on under-specification rather than true conciseness given how much scope it compresses into one clause.

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 zero-parameter, no-output-schema overview tool, the description identifies the topics the summary covers, which is the minimum needed to call it. It still omits the return format and the routing rule against sibling doc tools, leaving a gap an agent must guess at.

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate beyond what the empty schema already shows. The baseline of 4 applies; no parameter-level gaps exist.

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 does contain a verb ('Tóm tắt' = summarize) and lists concrete content (gateway, wire rules, prioritized docs order), so the general intent is readable. However, 'cổng' is ambiguous (gateway vs. port), and the scattershot list of topics does not let an agent distinguish this server-level overview from sibling tools like read_doc or list_docs that also surface documentation content.

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 statement of when to call this tool versus the obvious alternatives (read_doc, list_docs, search_docs). An agent modifying a LangLa client is told implicitly it should read this first, but no condition, prerequisite, or 'do not use when' guidance is given.

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