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

Goes well beyond the annotations: it discloses that the agent runs under its own permissions, may message people, consumes agent credits, and returns immediately rather than waiting for completion. The destructiveHint/openWorldHint flags say 'risky' but the description says exactly what the risk is and what the call returns.

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 tight sentences: side effects and cost first, then the synchronous return and the follow-up call. Nothing is wasted and the most important caveat (it can message people and spends credits) 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?

With no output schema, the description still explains what comes back (the task that runs it) and which tool to chain into. Side effects, cost, and async semantics are all covered, so an agent has everything it needs to call this safely.

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 coverage is 100% and both parameters already document their source (list_agents, list_agent_triggers), so the schema carries the load. The description adds no meaning about agent_id or trigger_id beyond that, which is the expected baseline for a fully documented two-param schema.

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 ('Fire a trigger once now') and adds intent ('as a test'), so an agent can tell this apart from run_agent_goal_now or run_agent_task_now by the trigger resource. It never explicitly names those siblings, which keeps it just short of a 5.

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?

'as a test' plus 'follow it with get_agent_task' gives clear context for when to call and what to do afterwards. There are no explicit exclusions or named alternatives for the other 'run now' tools, so the routing guidance is clear but not complete.

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