update_tag

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

With no annotations, the description carries the full behavioral burden. It usefully discloses that REST changes may not appear on the board in realtime and that a refresh is needed, but it omits permission requirements, partial-update behavior, and what happens when optional fields are null.

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?

Two tightly written sentences with the core action front-loaded and the important synchronization caveat immediately after. No wasted text.

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 not be explained. However, for a 4-parameter mutation tool with no annotations and zero schema description coverage, the description leaves required parameter semantics and update-side effects underspecified.

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%, so the description must compensate. It maps the update actions to title and fill_color, but does not explain the required board_id and tag_id parameters or their scoping role.

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 two specific operations on a tag: rename and change color. This clearly distinguishes update_tag from siblings like create_tag, delete_tag, get_tag, and attach_tag.

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 first sentence implies the usage context: use it when renaming a tag or changing its color. However, it does not explicitly name alternatives or state when not to use this tool versus create_tag, delete_tag, or attach_tag.

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