add_hyperlink

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

With no annotations, the description carries full burden. It discloses internal XML mechanics but lacks details on side effects, error conditions, or permissions. Behavior is partially transparent.

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?

Description includes low-level XML details that may not be necessary for an AI agent. While structured, the technical information could be condensed and front-loaded with user-facing behavior.

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's complexity (3 required params, output schema exists), the description covers basic functionality and params but omits edge cases, error handling, and relationship with similar tools.

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%, so description compensates with a dedicated 'Args' section explaining each parameter's meaning beyond the schema titles. This adds significant value.

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 it appends an external hyperlink at the end of a paragraph, specifying the action and resource. It distinguishes from siblings like add_internal_link and update_hyperlink.

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 implies when to use (append new hyperlink to existing paragraph) but lacks explicit context on when not to use or alternatives. No comparison to remove_hyperlink or update_hyperlink is provided.

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