Delete Chess Game

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

Annotations already declare readOnlyHint=false, destructiveHint=true, and idempotentHint=true, so the safety profile is covered structurally. The description adds "free its session" as a mild behavioral note but doesn't disclose permanence of deletion, whether related data (moves, analyses) is destroyed, or access requirements. No contradiction with annotations exists; the description adds modest value over what annotations provide.

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 exactly one sentence (7 words), front-loaded with the action verb. It's efficient but arguably over-terse — the "free its session" concept and the game_id requirement both deserve elaboration. This borders on under-specification rather than genuine conciseness, though it avoids padding.

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 1-parameter destructive tool with good annotations and an output schema, the description is minimally adequate. The main gap is the unexplained "free its session" semantic — whether deletion is permanent, whether sessions are tied to games, and what the caller should expect afterward. Low complexity lowers the bar, but the session concept creates real ambiguity the description should resolve.

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%, and the description fails to compensate. While game_id is a self-descriptive parameter name, the description doesn't explain how to obtain a valid game_id (e.g., from create_game or game_state), any format expectations, or validation constraints. With zero coverage, the description carries the burden and drops the ball.

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?

"Delete a game" clearly identifies the verb and resource, and it implicitly distinguishes from create_game among siblings. However, "free its session" is vague and unexplained — it's unclear what a session is, what freeing it means, or whether it implies releasing resources beyond the game itself.

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 provides no guidance on when to use this tool versus alternatives, no mention of prerequisites (ownership, active games, permissions), and no reference to sibling tools like create_game as the inverse operation. It neither states exclusions nor implies usage context beyond the literal action.

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