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

Annotations already declare destructiveHint=true, idempotentHint=false and openWorldHint=true, so the safety profile is covered. The description adds real value beyond that: it clarifies the whole policy is replaced rather than patched, and that host confirmation settings are out of scope for this call.

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?

Two tight sentences with the replacement semantics front-loaded and the scoping caveat second. Nothing is wasted, though the caveat sentence is a minor tangent relative to the unexplained parameters.

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 destructive, non-idempotent mutation with eight parameters and no output schema, the description is too thin. It should at minimum characterize the required policy inputs (tools, resources, provider) and the role of approval_id/connection_id, none of which is addressed.

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?

Eight parameters at 0% schema description coverage, and the description never mentions any of them. It gestures at 'policy' without explaining that tools/resources/provider define it, and says nothing about duration, approval_id, connection_id, or allow_high_impact, leaving an agent to guess from names alone.

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?

States a specific verb and resource: 'Replace this AI client's standing authorization' plus the replacement scope ('with the exact supplied policy'). This reads clearly as the update counterpart to beon_create_autopilot_grant, though it never names that sibling to sharpen the distinction.

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 word 'Replace' implies full-overwrite semantics rather than a merge, which is useful context, but there is no explicit when-to-use statement or routing to the alternatives (beon_create_autopilot_grant, beon_accept_invitation). Usage is inferable, not stated.

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