timers_operate_all

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

No annotations are provided, so the description carries full burden. It states the action ('perform an operation') but lacks behavioral details such as whether this requires specific permissions, if it's destructive (e.g., resetting timers loses data), what happens on success/failure, or any rate limits. This is inadequate for a mutation tool with zero annotation coverage.

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, efficient sentence that front-loads the key information ('Perform an operation on all timers simultaneously') with zero waste. Every word earns its place, making it highly concise and well-structured.

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 (a mutation affecting multiple resources), lack of annotations, and no output schema, the description is incomplete. It doesn't explain the impact of operations (e.g., what 'reset' entails), error handling, or return values, leaving significant gaps for agent understanding.

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%, with the parameter 'operation' fully documented in the schema (including enum values: start, stop, reset). The description adds no additional meaning beyond implying bulk application, so it meets the baseline score of 3 where the schema does the heavy lifting.

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 ('perform an operation') and resource ('on all timers simultaneously'), making the purpose understandable. It distinguishes from sibling tools like 'timers_start', 'timers_stop', and 'timers_reset' by specifying it affects all timers at once, though it doesn't explicitly name these siblings for comparison.

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. It doesn't mention scenarios where bulk operations are preferred over individual timer controls (e.g., 'timers_start'), prerequisites, or any exclusions, leaving the agent without context for tool selection.

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