store_contexts_batch

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

No annotations are provided, so the description carries the full burden. It mentions 'single transaction' and performance, but does not disclose error handling, partial failure behavior, overwrite semantics, or what the tool returns. This is minimal disclosure for a write operation without annotation support.

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 a single, front-loaded sentence containing only essential information: the action, target, transactionality, and performance benefit. No unnecessary words or repetition.

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 batch storage tool with no output schema and no annotations, the description covers core purpose and a key behavioral trait (transaction). However, it does not explain return values, failure scenarios, or how idempotency_key works in practice, leaving moderate gaps.

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 coverage is 100%, so the input schema already describes each parameter (contexts, session_id, idempotency_key) adequately. The description adds no parameter-specific semantics beyond hinting at batch storage, so the baseline score applies.

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 verb 'Store' and the resource 'multiple session contexts'. It distinguishes itself from the sibling tool 'store_session_context' by emphasizing batch operation and 'single transaction', making the purpose unambiguous.

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 when storing multiple contexts, especially for performance ('40-60% faster'). However, it does not explicitly state when to use this tool versus 'store_session_context' or mention any exclusions or alternative selection criteria.

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