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

Annotations already declare the safety profile (readOnlyHint=false, idempotentHint=false, openWorldHint=true, destructiveHint=false), so the agent knows this is a non-idempotent write to an open-world store. The description usefully adds that 'usage and outcomes remain client-reported' (unverified self-reported data), but says nothing about accumulation behavior or duplicate request_id handling.

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 with the purpose front-loaded and zero filler; the client-reported caveat earns its place. It could be slightly more explicit about the event-type mapping.

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 an 8-parameter write tool with 0% schema coverage and no output schema, the definition omits parameter semantics, return behavior, and event accumulation rules. Annotations cover safety but not the operational details an agent needs to call this correctly.

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 carry the parameter burden, and it only enumerates the type values already present in the enum. The other seven parameters (session_id, request_id, capability, current_stage, summary, reported_cost_usd, reported_tool_turns) get no meaning, format, or constraint guidance.

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 gives a clear verb ('Report') and resource ('viewed, called, succeeded, failed or skipped capability status, or task stage'), which maps directly onto the type enum values. However, it does not distinguish this tool from siblings like create_task_session or get_task_session, leaving the agent to infer the boundary.

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?

There is no statement of when to use this tool versus alternatives, no prerequisites, and no exclusions. The closing sentence about client-reported data is a provenance caveat, not usage guidance.

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