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

With no annotations, the description carries the full behavioral burden and does disclose the key traits: the call streams/follows in real time and 'resolves with the pass/fail verdict and the generated verification test content.' It omits auth needs, timeouts, and failure modes, but the core behavioral profile of a long-lived streaming call is communicated.

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. The action and its real-time nature lead, and the resolution behavior follows immediately — every clause 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?

For a single-parameter streaming tool with no output schema, the description supplies the essential missing piece: what the call resolves with (verdict plus generated test content). It is nearly complete, lacking only edge-case behavior such as failure/timeout handling.

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?

Only one parameter exists and schema description coverage is 100%, so the schema already documents testId fully (including its origin from test_component). The description adds no syntax or format detail beyond that, so baseline 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 and resource — follow/stream a test submitted by test_component — and the 'in real time' framing implicitly distinguishes it from the non-streaming get_test sibling. It does not name the sibling explicitly, so an agent must infer the routing rather than being told.

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 'Follow a test submitted by test_component in real time' implies the usage context (after test_component has produced a testId, when you want live updates), but there is no explicit when-to-use versus get_test or when-not guidance.

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