upstash_redis_set

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

No annotations are present, so the description bears full responsibility. It only states the action without disclosing side effects (e.g., overwriting existing keys, removing TTL), return value, or authentication details. This is insufficient for a write operation.

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 concise at 9 words, but it is too minimal for a tool with 6 parameters and no annotations. While it is front-loaded with the action, it does not earn its place by providing sufficient detail.

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 tool's complexity (6 params, write operation, no output schema, no annotations, low schema coverage), the description is severely incomplete. It omits return value, constraints, and disambiguation from siblings.

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?

With only 33% schema description coverage, the description fails to explain the roles of parameters like api_key, email, db_id, and key. It adds no value beyond the schema, and the schema itself lacks descriptions for most parameters.

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 action ('Set a key-value pair') and the resource ('Upstash Redis database'), effectively distinguishing it from sibling tools like upstash_redis_get, upstash_redis_del, upstash_redis_incr, and upstash_redis_list_keys.

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 provides no guidance on when to use this tool versus alternatives, no mention of optional parameters like 'ex' for expiry, no restrictions on value types, and no context about prerequisites or when not to use it.

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