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

Annotations already declare this as destructive, non-read-only, non-idempotent, and closed-world. The description adds useful behavioral context about MCP approval configuration and business workflow approvals, but it does not explain update semantics such as whether omitted fields are preserved or cleared, nor does it detail side effects of editing a template.

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 short, front-loaded with the core action, and avoids unnecessary repetition. The approval sentence is relevant context, though slightly disconnected from the main update semantics.

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?

Although an output schema exists and annotations cover the safety profile, the description is incomplete for a destructive update tool with 0% schema description coverage. It omits what fields can be changed, whether the update is partial or full replacement, permission requirements beyond approvals, and the effect of the nested data object.

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%, so the description should compensate by explaining the id and nested data fields. It only implies that a template is being edited and adds no meaning about the required id, the data object, or the name/description fields beyond what the schema property names already convey.

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 states a clear verb and resource: 'Edit a project_budget template.' It distinguishes itself from create/delete/list project budget template siblings by using 'Edit,' but it does not explicitly differentiate from closely related siblings such as update_budget_template or update_project_budget_template_item.

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 gives no guidance on when to use this tool versus alternatives like update_budget_template or update_project_budget_template_item. It mentions approval requirements, but this is not usage guidance and does not clarify when this specific update tool should be selected.

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