create_tracking_plan

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

No annotations are supplied, so the description carries the full behavioral burden. It only says a plan is "created" and never states whether a duplicate id overwrites an existing plan, whether events are validated on creation, whether required permissions exist, or what the result looks like – significant gaps for a mutation tool with a nested event/parameter structure.

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?

One front-loaded sentence with no filler, so it is efficiently sized. However, that brevity leaves behavioral questions unanswered for a 6-parameter, 5-required mutation tool, meaning the sentence is short but arguably under-committed.

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?

With no annotations, no output schema, and a nested events structure carrying required parameters, the description should address overwrite semantics, validation behavior, or at least confirm what happens on success. None of that is present, so the definition is materially incomplete for the tool's complexity.

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 100%, so id, name, platform, business_type, events, and description are already documented in the schema, and the description adds nothing beyond echoing the business_type enum values. Baseline 3 applies when the schema does the heavy lifting.

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 uses a specific verb ("Creates") and resource ("tracking plan specification") and scopes it to two business types, so an agent can distinguish it from get/list/validate siblings by the write verb. It stops short of naming those siblings or stating that it is the only creation entry point, so sibling differentiation is implied rather than explicit.

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 when-to-use guidance, no prerequisites, and no mention of the alternative siblings (get_tracking_plan, list_tracking_plans, validate_tracking_event). An agent must infer that this is the creation tool purely from the verb.

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