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

Beyond the annotations, the description discloses that releasing while the template_preview approval card is open preempts human ownership, that the agent must announce that it released the template itself, that MCP execution is restricted to single-active-user accounts, and that multi-user responses include a dashboard link. These are real behavioral side effects not captured by annotations.

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?

The text is clearly structured and front-loaded with the action and the critical warning, but it repeats the same content in German and English, which roughly doubles its length. It is close to appropriately sized for a consequential action, but not maximally concise.

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?

Given the absence of an output schema, the description still covers preconditions, human-approval rules, account restrictions, and next steps (template_apply_with_merge_fields, letter_create_draft, order_send), which is enough for an agent to decide when and how to call it. Minor omissions like the exact success response are not needed for correct invocation.

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?

Only versionId has a schema description; templateId and reasoning are undocumented. The long description adds little beyond reinforcing that versionId is the draft version to release and never explains the purpose of the optional reasoning field, so it does not compensate for the 33% schema coverage.

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 opens with a specific verb and resource ('Gibt eine Entwurfsversion frei, sodass sie versendet werden kann') and differentiates template_release from siblings by placing it as the last step of the crafting chain. It also clarifies the boundary with template_preview, so an agent can tell them apart without inspecting schemas.

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 explicit when-to-use instructions: only after the human explicitly asks, and only when the account has exactly one active user; otherwise a human releases in the dashboard (four-eyes principle). It also names excluded situations (approval card open, multi-user accounts) and the follow-up tools after release.

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