get_session_overview

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

With no annotations, the description carries the full burden and does a solid job: it discloses side effects ('none; performs three read-only TCP bridge calls') and error behavior ('a bridge failure is returned by the corresponding component read'). It does not describe latency or partial-failure semantics beyond that, but the safety and failure profile is well covered.

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?

Front-loaded with the purpose, then side effects, an example, and edge cases in clearly separated sentences. Every line earns its place, though the example line is mildly redundant given the output schema.

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?

An output schema exists, so the description needn't explain return values, and it correctly focuses on side effects and failure behavior. For a zero-param read-only aggregator this is nearly complete; only the relationship to the individual sibling calls is left implicit.

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?

The tool takes zero parameters, so the baseline is 4. The description adds no param information, but none is needed.

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 ('Compose a compact Session snapshot') and names the components returned (session, tracks, scenes), which maps to the sibling tools get_session_info, get_track_list, and get_scenes. The agent can tell it is an aggregator rather than a primitive, though it never names those siblings explicitly.

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 'from three existing read tools' implies the tool is a convenience aggregator, hinting that it replaces three separate calls. However, there is no explicit when-to-use vs when-to-prefer-the-individual-calls guidance, so the agent must infer the tradeoff.

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