assign_thread

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

The description discloses the core behavior (assign/unassign) but does not mention potential side effects, prerequisites, or permissions. No annotations exist to supplement, so more detail on requirements or consequences would improve transparency.

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 extremely concise with two sentences plus a clear Args block. Every sentence serves a purpose, and the key action is front-loaded.

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 two-parameter tool with an output schema, the description covers the necessary behavioral and parameter details completely. No gaps are evident.

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?

With 0% schema description coverage, the description adds value by explaining the semantics of assigned_to (null/empty means unassign) and confirming thread_id is required. This goes beyond the schema's type and default information.

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 the tool assigns a thread to an agent or user, with explicit handling for unassignment via null/empty. This specific verb-resource combination distinguishes it from sibling tools like set_thread_status or tag_thread.

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?

The description explains the unassignment behavior, providing clear guidance on how to use the tool for both assignment and unassignment. It does not explicitly mention when to use this tool versus alternatives, but the purpose is distinct enough.

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