list_recent_thoughts

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

No annotations are provided, and the description offers no behavioral details beyond the purpose. It doesn't disclose that this is a read-only operation, the ordering of results, or how the limit interacts with the response. The description adds little over the tool's name and schema, so it fails to carry the transparency burden.

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 entire description is two short sentences. The first sentence immediately states the action, and the second provides the alternative context. No redundant or extraneous text.

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 simple one-parameter read tool, the description covers the core purpose and a usage scenario. It doesn't describe the output shape or explicitly state that results are ordered, but the simplicity and schema coverage make it sufficiently complete for most agents.

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 input schema fully documents the single 'limit' parameter with default, min, max, and description, giving 100% schema_description_coverage. The description adds no parameter-specific information, but the baseline of 3 applies since the schema handles parameter semantics completely.

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 uses the verb 'get' and clearly specifies the resource 'most recently captured thoughts.' It also explicitly distinguishes itself from sibling tool list_thoughts by calling itself 'A simpler alternative to list_thoughts,' which meets the sibling differentiation criterion.

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 'when you just want to see recent activity' gives a clear context for when to use this tool compared to list_thoughts. It names list_thoughts as an alternative but doesn't explicitly state when not to use this tool (e.g., when you need filtering or full history), so it's clear but lacks exclusions.

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