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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and closed-world scope, so safety is covered. The description adds only the tenancy constraint ('in this organization'), implying lookups are org-scoped and out-of-org ids will not resolve; it says nothing about not-found behavior or what fields come back.

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?

A single short sentence with the resource and the scoping constraint front-loaded; nothing is padded or redundant.

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 trivial one-parameter read with rich annotations this is close to sufficient, but with no output schema the description should at least hint at what a customer record contains or what happens on a miss. It stops short of that, leaving a modest gap.

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 must carry the parameter burden and largely does not. 'By id' confirms customer_id identifies a single customer but gives no format, no statement of where the id comes from (e.g., list_customers), and no indication of whether ids are org-local or global.

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 ('Get one customer') plus the key scoping detail ('by id in this organization'), which cleanly separates it from list_customers. It never names the sibling tools explicitly, so differentiation is implied rather than stated.

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 when-to-use guidance: nothing says to use this after list_customers to resolve an id, nor when to prefer get_item-style lookups over a list call. The 'one ... by id' phrasing hints at the single-record case but leaves the agent to infer the workflow.

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