help

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

With no annotations, the description carries the burden and does well: it discloses that the no-arg mode also reports which tools this process did not load (MEMAI_TOOLS), and explains the docstring-vs-schema tradeoff. It doesn't state auth or rate-limit behavior, but for a read-only help tool that gap is minor.

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?

Front-loaded with the core purpose, then the two modes. Mostly earning its place, though the parenthetical about schema cost being 'paid for on every request' is a bit of editorializing that could be trimmed without losing meaning.

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 single-optional-param help tool with no output schema and no annotations, the description covers both invocation modes and what each returns, which is what an agent needs to call it correctly. It stops short of describing the exact docstring format, but that is not essential to invocation.

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 0% (the 'command' param has no schema description), so the description must compensate. It does: command='<name>' selects a specific tool's signature and full documentation, versus an empty/omitted value returning the full list. The syntax format is given, though the exact accepted name set is not enumerated.

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: 'Explain the memai tools, read directly from their code docstrings.' It is unmistakably the meta/help tool and cannot be confused with any sibling like search or recall.

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?

It explicitly branches usage by input: 'Without arguments' returns the full tool list, and 'With command=<name>' returns that tool's signature and full docs. The conditions that select each mode are named directly, leaving nothing to inference.

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