get_sessions

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

Despite no annotations, the description comprehensively covers side effects (read-only), idempotency, rate limits, authentication needs, error handling, and data privacy. This fully informs the agent about the tool's behavior.

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?

The description is overly long and repetitive, with 'Behavior' and 'Behavioral Transparency' sections saying the same things. Generic sections like 'When to use' add no value for this specific tool. It could be cut by 60% without losing meaningful information.

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?

With an output schema, return values are covered, but parameter semantics are severely lacking. The description fails to clarify what 'date' and 'limit' do in context of sessions, and no example or further details are given. The tool's stats output is not explained.

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 compensate. The 'Args' section merely repeats parameter names and types with a useless 'to analyze or process' suffix. No explanation of date format, limit's effect, or api_key usage is provided, leaving the agent guessing.

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 first sentence clearly states 'Get all focus sessions with stats', specifying both the action and resource. This distinguishes it from siblings like get_analytics. However, the description later includes generic text about 'structured analysis or classification' which dilutes the focus.

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 'When to use' and 'When NOT to use' sections are generic templates not tailored to this tool. They reference 'structured analysis' and 'classification', which are unrelated to fetching sessions. No guidance is given on when to prefer this tool over siblings like end_focus or start_focus.

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