cst_pause_simulation

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It adds the useful fact that the pause is reversible (resumable later), but says nothing about blocking behavior, failure conditions when no simulation is running, what the timeout_s parameter does, or whether the pause is immediate. This is thin disclosure for a state-mutating control operation.

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 sentences with no filler; the primary action is front-loaded and the second sentence earns its place by establishing the resume pairing. It is appropriately sized for a simple control tool, though it could have traded a little brevity for a timeout_s hint.

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 one-parameter, no-output-schema tool this is moderately complete: the core action and its reversibility are covered. But given zero annotations, the unexplained timeout_s parameter and unspecified behavior when no simulation is running leave an agent needing to guess.

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 the description adds nothing about the only parameter, timeout_s. An agent cannot tell what the timeout applies to (waiting for the pause to take effect? total delay?), what units it uses, or what the default of 30 means behaviorally. The description completely fails to compensate for the undocumented 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?

The description states a specific verb and resource ('Pause a currently running CST simulation') and immediately distinguishes the tool from its sibling by noting the simulation 'can be resumed later with cst_resume_simulation'. This clearly separates pause from cst_stop_simulation and cst_run_simulation.

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 'currently running CST simulation' gives clear context for when the tool applies, and the mention of resuming implies it is not a terminal action. However, it does not explicitly exclude other states (e.g., idle/completed simulations) or contrast with cst_stop_simulation as the terminating alternative, so the guidance is implied rather than explicit.

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