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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds only 'public intent-level DTO', which is jargon that conveys no behavioral detail such as what happens when the sequence is not found or what access scope is required.

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, so nothing is bloated, but the 'APP:' prefix and 'public intent-level DTO' phrase consume space without informing the caller. The one meaningful clause ('Reads one email sequence') is front-loaded.

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?

An output schema exists, so return shape needn't be described. However, for a read tool with two ambiguous, 0%-documented identifier parameters, the description should at minimum explain which identifier to supply and error/not-found behavior; it does neither.

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 both 'id' and 'sequenceId' are optional strings with no documented meaning anywhere. The description says it reads 'one' sequence, implying an identifier is needed, but never says which parameter to use or why two exist — the agent has to guess.

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 ('Reads one email sequence'), which is enough to tell it apart from list_replies or create_sequence at a glance. It does not explicitly distinguish itself from preview_sequence or get_campaign, and the trailing 'public intent-level DTO' is internal jargon rather than clarifying scope.

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?

No guidance on when to call this instead of preview_sequence, list-related tools, or create_sequence. Nothing explains the relationship between the two identifier parameters or when each applies, so the agent must infer usage entirely.

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