Anki MCP Server

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states this is an update operation (implying mutation) and mentions efficiency, but fails to disclose critical traits such as required permissions, whether changes are reversible, error handling for partial failures in batch updates, rate limits, or what the response looks like. For a mutation tool with zero annotation coverage, this is a significant gap in transparency.

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 highly concise and well-structured in two sentences: the first states the purpose and benefit, and the second specifies parameter requirements. Every sentence adds value without redundancy, making it easy for an agent to parse quickly. It is appropriately sized for a tool with a single parameter and clear functionality.

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 complexity of a batch mutation tool with no annotations and no output schema, the description is incomplete. It lacks details on behavioral aspects (e.g., error handling, permissions), does not explain return values or side effects, and relies heavily on the schema for parameter documentation. For a tool that modifies multiple resources, more contextual information is needed to ensure safe and effective use by an agent.

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 description adds minimal semantics beyond the input schema: it specifies that each update should contain 'note_id and fields to update,' which aligns with the schema's description of 'update dictionaries.' However, with 100% schema description coverage, the schema already documents the parameter thoroughly (e.g., 'List of update dictionaries, each containing 'note_id', 'fields' dict, and optionally 'tags' list'). The description does not provide additional context like field constraints or examples, so it meets the baseline for high schema coverage.

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 clearly states the tool's purpose: 'Update multiple notes in a single batch operation for efficiency.' It specifies the verb ('update'), resource ('notes'), and scope ('multiple...batch'), distinguishing it from the sibling tool 'update_note' which likely handles single notes. However, it doesn't explicitly contrast with 'update_note' or other bulk operations like 'create_notes_bulk', leaving some sibling differentiation implicit.

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 description implies usage context by mentioning 'efficiency' for batch operations, suggesting this tool is preferred over individual updates when handling multiple notes. However, it lacks explicit guidance on when to use this versus alternatives like 'update_note' or 'create_notes_bulk', and does not mention prerequisites, exclusions, or performance trade-offs, leaving the agent to infer optimal scenarios.

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