Edit board

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

With no annotations provided, the description is the only source of behavioral disclosure. It mentions editing cells and changing turn/rule state, but does not reveal important behaviors such as whether edits are validated, whether existing pieces can be overwritten, whether rule_state changes affect the game logic, or whether the operation is reversible. For a mutation tool with no annotations, this is a notable gap in 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 a single sentence that conveys the core purpose, but it is somewhat dense and not front-loaded with the most critical information. It mentions turn and rule state as optional, but the structure could be clearer by explicitly outlining the main action (editing board cells) first. It is still reasonably concise, but could be more effective with a clearer breakdown.

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 moderate complexity (4 parameters, nested object for changes, optional turn and rule_state), the description lacks sufficient detail about the changes format, the meaning of null in changes (removal), and the expected structure of turn and rule_state. Without an output schema, it also doesn't clarify what the response looks like. The description provides a high-level overview but is incomplete for an agent to fully understand how to structure requests correctly.

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 for documenting parameters. The description mentions 'adding, removing, or replacing pieces' and 'turn or rule state', which indirectly maps to the 'changes' and 'turn'/'rule_state' parameters. However, it does not explain the structure of 'changes' (which is a mapping from cell identifiers to piece definitions or null), or how 'turn' should be formatted, or what rule_state expects. It adds some value but leaves many details to the schema, which is complex (due to nested objects).

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 that the tool edits board cells (adding, removing, or replacing pieces) and can update turn or rule state, which is specific and action-oriented. However, it could be clearer about the scope of 'editing' versus 'playing a move' (which is a sibling tool). The description doesn't explicitly distinguish itself from play_move, making the purpose somewhat overlapping and less clear in the context of sibling tools.

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 that the tool is for editing board cells and state, which suggests it might be used for administrative or setup purposes, but it does not explicitly state when to use it versus play_move, new_game, or other siblings. There is no guidance on when not to use it or what scenarios it is intended for, leaving the agent to infer usage from the verb 'edit'.

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