unmark_thread_spam

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

Annotations already declare readOnlyHint=false, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds that the effect applies to all messages in a thread rather than one message, but says nothing about permissions, behavior when the thread is not in Spam, or any resulting label/state changes.

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 short sentence with zero filler, and the resource and effect are front-loaded. Nothing could be removed 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 one-parameter, non-destructive, idempotent tool with annotations and no output schema, this is close to adequate. Still missing are edge-case behavior (thread not in Spam, partial failures) and any hint of the required authorization scope.

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 required threadId, so the description carries some burden. Saying 'a thread' implies threadId identifies the thread whose messages are moved, but it adds no format, example, or accepted-ID detail beyond that weak implication.

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 states a specific verb ('Moves ... out of') and a specific resource ('the messages of a thread'), and the thread/message distinction implicitly separates it from the sibling unmark_message_spam. It does not explicitly name that sibling, so it stops short of a 5.

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 guidance on when to use this versus unmark_message_spam or mark_thread_spam, and no stated preconditions (e.g., thread must currently be in Spam). The use case is only inferable from the name.

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