Save key takeaways from important conversations for later retrieval, while excluding permanent preferences that belong in the memory bank.
Store key takeaways from significant exchanges. NOT for permanent preferences or standing rules — use add_to_memory_bank for those.
| Name | Required | Description | Default |
|---|---|---|---|
| key_takeaway | Yes |
Changes observed during successful MCP inspections.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided, so description carries full burden. It describes a write operation but does not clarify whether it overwrites, appends, or requires authentication. Adequate but lacks depth.
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: first states purpose, second provides usage guidance. No wasted words.
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?
Given the single parameter, no output schema, and simple purpose, the description is mostly complete. Could be improved by noting whether each call creates a new entry or updates an existing one.
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 has 0% description coverage and the description adds no additional meaning to the parameter key_takeaway beyond its name. For a single parameter, this is a missed opportunity to specify format or constraints.
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?
Clearly states the tool stores key takeaways from significant exchanges. Explicitly distinguishes from sibling add_to_memory_bank by stating what not to use it for.
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?
Provides explicit negative guidance ('NOT for permanent preferences or standing rules') and directs to an alternative tool (add_to_memory_bank).
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.