Control RPC recording

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

Annotations indicate readOnlyHint=false, idempotentHint=false, destructiveHint=false, providing no safety information. The description adds 'bounded in-memory' but does not disclose effects of actions like starting when already started, clearing data, or state change semantics. It does not clarify whether actions are reversible or require setup.

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?

Single sentence, concise, and gets to the point. However, the omission of 'status' means it is under-specifying the set of actions. It is not excessively verbose but loses a point for incompleteness.

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?

The tool has one enum parameter and no output schema, so it is relatively simple. But the description lacks information about the 'status' action and consequences of each action on the recording state. This is a minimal but incomplete description for a control tool with mutating operations.

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%, so the description must explain the 'action' parameter. It enumerates start, stop, clear but omits 'status' from the enum, providing incomplete semantics. It adds some value by listing the main actions but does not fully compensate for the missing schema descriptions.

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 specifies 'Start, stop, or clear the bounded in-memory RPC record/replay trace,' clearly indicating the tool's role in controlling the recording lifecycle. It differentiates from siblings like get_recording and replay_recording by focusing on control actions rather than retrieval/replay. However, it omits the 'status' action present in the enum, slightly reducing completeness.

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 explicit guidance on when to use this tool versus alternatives. The description implies usage for controlling recording but does not mention alternatives or conditions, leaving the agent to infer. The presence of get_recording and replay_recording suggests related tools but no differentiation is provided.

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