update_starting_position

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

No annotations are provided, so the description carries full burden for behavioral disclosure. It only states 'Update', implying mutation, but does not disclose whether the operation is reversible, if coordinates are validated, if there are side effects (e.g., overwriting previous start position), or if special permissions are required. This is insufficient for a mutation tool.

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 is clear and front-loaded with the verb and resource. It is appropriately concise for a simple tool, though could be slightly more structured (e.g., mentioning parameters specifically).

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 3-parameter required tool with no output schema, the description lacks information about return values or success indicators. It also does not clarify whether the tool sets a global starting position or one for a specific player (if relevant). Adequate but could be more complete.

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 100%, so baseline is 3. The description ('map ID and coordinates') restates the schema parameter descriptions without adding new meaning, such as coordinate bounds, format constraints, or how the tool handles partial updates. It does not compensate beyond the schema.

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 verb 'Update' and resource 'player starting position', and elaborates with 'map ID and coordinates'. It distinguishes from sibling tools like update_map_event, which update map events. However, it could be more specific by indicating this sets the default starting position for the player character, not a temporary position.

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 on when to use this tool versus alternatives. Siblings include update_map_event, which modifies event positions, but no explicit when-to-use or when-not-to-use information is provided. Prerequisites or context (e.g., must have a player character defined) are missing.

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