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

Goes well beyond the annotations, which only cover safety/idempotency flags. The description discloses that recurrence is unchanged, no run ID is returned, the call is asynchronous, and the next cron tick performs the claim — exactly the post-call behavior an agent needs to avoid polling for a run ID.

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 tightly packed sentences with the action front-loaded and the behavioral caveats following. Every clause carries information; nothing is redundant with the title.

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 output schema, the description correctly explains the outcome (no run ID, deferred execution). It is nearly complete for a 6-parameter tool, but leaves ambiguous which parameter selects the automation given that no parameters are marked required.

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 83%, so the schema already documents uid, bearer_token, conversation_id, preferences_mode, and agent_preferences. The description adds no parameter-level meaning, and notably does not clarify that automation_id is the operative identifier despite zero required parameters.

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 ('Make an owned active automation due immediately') and pins the target system ('Railway scheduler'). It implicitly separates itself from run-oriented siblings by saying it does not run synchronously, though it never names an alternative tool explicitly.

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 phrase 'due immediately' implies the use case (trigger an automation now rather than wait for its schedule), and the preconditions 'owned active' narrow applicability. However, there is no explicit when-to-use/when-not-to-use guidance and no sibling (e.g. pause_automation, resume_automation, get_automation_run) is referenced as an alternative.

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