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

Annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false, so the safety profile is covered. The description adds useful context by noting that server-owned fields are excluded and that MCP approval requirements are org-configurable while business workflow approvals always apply. However, it does not explain what the destructive update replaces, whether it merges or overwrites fields, or what happens to omitted fields.

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 short sentences with no wasted restatement, and the update scope is front-loaded. The second sentence about approvals is slightly tangential but still relevant operational context.

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?

The tool is a destructive mutation with a nested input object and no parameter descriptions, and an output schema exists so return values need not be explained. Still, the description does not cover update semantics, required id usage, field-level behavior, or consequences of destructive updates, leaving significant gaps for an agent to infer.

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 schema has a nested data object with eight properties, so the description must compensate. It only states that 'server-owned fields are excluded' and does not clarify the required id, the data object, or the meaning of name, color, order, status, dates, description, or parentPhaseId.

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 says 'Configure/edit phase', which is a clear verb and resource, but it does not distinguish this tool from create_phase, delete_phase, reorder_phase, or get_phase. The phrase 'server-owned fields are excluded' adds some scope, but the overall purpose remains only broadly implied.

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?

There is no guidance on when to use update_phase instead of create_phase, delete_phase, reorder_phase, or other sibling tools. The only usage-related statement is about approval requirements, which does not help an agent decide between update and alternative operations.

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