Stop System Trace

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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=false, so the safety profile is covered. The description adds only 'kernel-level' as context and says nothing about what destruction means here (e.g., whether buffered trace data is finalized, discarded, or lost, and what happens if the named session does not exist).

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?

One short, front-loaded sentence with zero waste and no hedging. It is arguably too terse rather than bloated, but nothing in it 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?

For a destructive stop operation, the description omits the practically important context: that a matching trace session should exist and what outcome to expect (data retained vs. lost). An output schema exists, so return values need not be explained, but the operational preconditions and side effects are missing.

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?

There is a single parameter with 100% schema description coverage ('Name of the trace session'), so the schema already carries the parameter meaning. The description adds no extra semantics such as whether the name must match an active session or whether it is case-sensitive, so the baseline of 3 applies.

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 ('Stop') and resource ('kernel-level event trace'), which is clearly distinguishable in meaning from unrelated siblings like list_services or get_process_details. It does not, however, name or differentiate itself from its obvious counterpart start_system_trace, leaving the pairing to be inferred from the name.

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?

No guidance on when to invoke this versus alternatives or prerequisites — it doesn't say the session must already be running, nor does it point to start_system_trace as the counterpart. The agent must infer the workflow from the tool name alone.

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