Activate PIM Role (self)

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

The description adds key behaviors not in annotations: the requirement of a delegated token, eligibility check, and bounded activation window. These supplement the annotation flags (readOnlyHint=false, idempotentHint=false) with meaningful operational context. It does not contradict any annotation.

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 two concise sentences that front-load the core action and include a practical example plus a critical prerequisite. Every clause adds information, with no redundant fillers.

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?

Despite being informative, the description lacks parameter-level guidance and does not mention what the response looks like or how to specify duration/justification. For a tool with four parameters and no output schema, this description is not fully sufficient for an agent to invoke it correctly without additional probing.

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?

With 0% schema description coverage, the description carries full responsibility for clarifying parameters, but it does not explicitly map any parameter names. It hints at 'bounded window' (likely duration) and 'eligible roles' (roleDefinitionId), but leaves justification and directoryScopeId unexplained, which is a significant gap.

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 explicitly defines the tool as a just-in-time PIM elevation action where the delegated caller self-activates one of their own eligible directory roles. It distinguishes itself from sibling tools by focusing on role activation rather than user/group/license management, and even provides an example (Authentication Administrator for Temporary Access Pass).

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 states clear prerequisites: requires a delegated token and fails if the caller is not eligible, which helps the agent know when to use it. It also implies the use case for elevating to a role needed for Temporary Access Pass. However, it does not explicitly contrast with alternative tools or say when not to use it.

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