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

Annotations already declare destructiveHint=true, idempotentHint=false, and openWorldHint=true, so the safety bar is partly covered. The description adds genuinely non-obvious behavior: an ownership verification step, the requirement that a fresh connection be uploaded by the owner first, and the explicit warning that uncertain writes cannot be retried and submission plans cannot change. That is meaningful context beyond the annotations, though it omits what state is destroyed on the old connection.

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?

Two dense sentences with no filler, and the prerequisite is front-loaded before the constraints. The mid-sentence clause 'replace the same already-authorized provider' is awkwardly packed but still earns its place by encoding the provider-matching constraint.

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, non-idempotent mutation with no output schema, the description does cover the key hazard (no retry on uncertain writes) and the precondition. It falls short on parameter meaning and on what the caller gets back or how to detect the 'uncertain write' state it warns about.

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 full burden for three parameters. It only implicitly constrains provider ('same already-authorized provider') and hints connection_id refers to the fresh upload; launch_id is never explained, and the enum values (github/registry/smithery) go unmentioned. The mapping from parameter to meaning is largely left to inference.

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 core action is identifiable: verify ownership and swap the connection for a launch on an existing provider. However, the phrasing 'replace the same already-authorized provider for a paid launch' is convoluted, and the key qualifier (expired connection, per the title) never appears in the body, so the agent must infer the tool applies only to expired connections. It is recognizable but not crisp against siblings like revoke_connection or list_connections.

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 prerequisite is stated ('After the owner securely uploads a fresh connection') and one boundary is given ('cannot retry uncertain writes or change submission plans'). But it never names the alternative path (e.g., revoke_connection + authorize, or create_launch) or states what to do when the connection is not expired, leaving the choose-vs-alternative decision implied.

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