pipedrive_mail_threads_update

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

With no annotations provided, the description must convey behavioral traits. It only states that the tool updates a thread, but fails to disclose whether operations are destructive, reversible, require specific permissions, or what side effects occur (e.g., unlinking a deal). The minimal wording leaves significant ambiguity.

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?

The description is a single sentence that lists all key actions. No filler words, every part is informative. It is front-loaded with the main purpose and then enumerates specifics.

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?

Given the tool has 6 parameters, no output schema, and moderate complexity, the description provides a basic understanding but is incomplete. It lacks prerequisites (thread_id must exist), behavior when multiple flags are set, and return value or confirmation. A more complete description would include a note on response or edge cases.

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 only 17% (only thread_id has a description). The description partially compensates by mapping each flag (read_flag, archived_flag, shared_flag) to an action and mentioning deal_id/lead_id for linking. However, it does not explain allowed values, constraints, or interactions between parameters. The description adds some meaning but not enough to fully cover the 6 parameters.

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 clearly states 'Update a mail thread' and enumerates specific operations: link to deal/lead, mark read/unread, archive/unarchive, share. This is a specific verb+resource with scope, and it distinguishes the tool from sibling tools like list, get, and delete.

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 guidance is provided on when to use this tool versus alternatives. For example, it doesn't mention that one should first retrieve a thread using get or list, or that updating flags might require existing thread state. No exclusions or alternatives are given.

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