manage_graph_subscriptions

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

Annotations indicate this is a destructive, non-idempotent, open-world tool with write capabilities (readOnlyHint: false, destructiveHint: true, idempotentHint: false, openWorldHint: true). The description adds value by specifying that it handles 'real-time change notifications' and 'webhook subscriptions,' which clarifies the mutation context beyond the annotations. However, it doesn't disclose critical behavioral details like rate limits, error handling, or what specific resources are manageable, leaving gaps 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, efficient sentence that front-loads the core functionality: 'Manage webhook subscriptions for real-time change notifications from Microsoft Graph resources.' It avoids redundancy and wastes no words, making it easy for an agent to parse quickly. Every part of the sentence contributes essential information without fluff.

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 (4 parameters, nested objects, no output schema) and rich annotations, the description is minimally adequate. It covers the purpose but lacks details on output format, error cases, or integration with sibling tools. Without an output schema, the description should ideally hint at return values or success indicators, but it doesn't, leaving the agent with incomplete context for effective use.

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 all parameters well-documented in the input schema. The description adds no additional parameter semantics beyond the schema's details, such as explaining the relationship between 'action' and other parameters or providing examples. Since the schema carries the full burden, the baseline score of 3 is appropriate, as the description doesn't compensate but also doesn't detract.

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 tool's purpose: 'Manage webhook subscriptions for real-time change notifications from Microsoft Graph resources.' It specifies the verb ('manage'), resource ('webhook subscriptions'), and context ('Microsoft Graph resources'), making the function unambiguous. However, it doesn't explicitly differentiate this tool from sibling tools like 'manage_alerts' or 'manage_sharepoint_lists', which could also involve notifications or Graph resources, so it doesn't reach the highest score.

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 prerequisites, such as authentication requirements or permissions needed for Microsoft Graph access, nor does it compare it to sibling tools like 'execute_delta_query' or 'search_audit_log' that might offer overlapping functionality. Without any usage context or exclusions, the agent lacks direction on appropriate scenarios.

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