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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the safety profile is covered. The description adds genuinely new context — that native policy may apply immediately or convert into an approval-required pending state — but it never says what the destructive effect actually is, whether it is reversible, or what a pending result looks like.

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?

It is a single short sentence with no padding, which is good, but the leading "Submit:" colon fragment is awkward and the two clauses are jammed together, making it less front-loaded than it could be.

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 mutation with zero schema documentation and no output schema, the description should clarify required inputs and the pending-versus-applied outcome. It only gestures at the approval branch and leaves workspace/plan_id semantics entirely unexplained.

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 carries full burden for the two parameters and provides none. It never explains that plan_id (uuid) is optional while workspace is required, nor what workspace scopes the submission to.

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?

"Submit:" is a verb with no stated object, so the resource (a checkout plan) must be inferred from the tool name/title rather than the description. The approval-policy clause hints at what submission means operationally, but an agent reading only the description does not get an explicit 'submits this plan for application' statement.

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?

It gives one real routing condition: plans that come back pending must be confirmed via checkout_manage approve_plan, which is a useful alternative. However it says nothing about when to use this versus checkout_plan_edit, checkout_pause, or checkout_manage directly, so the guidance is partial.

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