configure_smtp_sender

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

With no annotations, the description carries the burden and does add real context: the QQ ordinary password is not used, the authorization code lives only in memory, and no test email fires. It omits what happens on reconfigure (overwrite? merge?), what enabled=false disables, and what privileges are needed.

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 scoping rule, followed by three short sentences that each add a distinct fact. No filler, though the telegraphic fragments read as notes rather than a structured description.

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 no explanation. But this is a configuration mutation with zero annotations and zero schema descriptions, and key questions — overwrite semantics, effect of enabled=false, handling of blank defaults — remain unanswered.

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% across three parameters, so the description must compensate. It meaningfully clarifies smtp_auth_code (an SMTP authorization code, not the account password, held in memory) and implies sender_email's role, but says nothing about 'enabled' or how the empty-string defaults behave.

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 concrete verb+resource ('configure ... sender') and pins the scope precisely: ONE shared QQ sender for all learning accounts, with per-account recipients handled elsewhere. This cleanly separates it from recipient-binding breadth without naming the sibling tool explicitly.

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?

Gives clear context for when to call it — setting up the shared SMTP identity — and two implicit exclusions: per-account recipients are a different operation, and no test email is sent here (pointing usage of send_notification_test elsewhere). It stops short of naming those alternative tools directly.

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