millumin_ping

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

With no annotations, the description carries the full burden, and it does disclose a non-obvious external dependency (env var plus a setting inside Millumin) that an agent could not infer from the schema. It stops short of describing failure behavior — what happens if no feedback arrives, whether the call errors or returns empty — which matters for a network/OSC round-trip tool.

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, zero filler, with the action and its return value front-loaded and the prerequisite following. Every sentence earns its place.

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?

There is no output schema, so the description must carry return semantics; it names the returned data (layer and board state) but not its shape. Combined with the undocumented waitMs and the absence of timeout/failure behavior, a network-dependent tool is left partially specified.

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 0% and the single parameter waitMs (integer, default 1000, 100–10000) is never mentioned in the description. Its obvious meaning — how long to wait for the feedback reply before giving up — is exactly the kind of semantics the description should supply and does not.

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 — send /ping and return layer and board state — which is concrete and actionable. It does not, however, distinguish itself from siblings like millumin_feedback or millumin_query, which plausibly return overlapping state, so an agent cannot route between them from the description alone.

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 description gives a hard prerequisite (MILLUMIN_FEEDBACK_PORT set, Millumin's OSC 'API feedback' enabled and pointed at that port), which implicitly frames this as a connectivity/health check. But it never says when to prefer this over millumin_feedback or millumin_query, nor what to do if the precondition is unmet.

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