merge_entities

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

No annotations provided, so description must disclose behavioral traits. It mentions rewriting observations and marking source, but does not clarify if source is deleted, whether observations are moved or copied, or any destructive side effects. Missing critical details for a mutation tool.

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 concise sentences, no fluff, front-loaded with the primary action and key effect.

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?

No output schema, so description should explain return value. Does not mention result of merge (e.g., success/failure, status of source entity). With 4 parameters and no schema descriptions, the description is too sparse for an agent to fully understand the tool's behavior.

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% parameter descriptions. The description does not explain any parameter (from_entity_id, to_entity_id, merge_reason, user_id) beyond their names. Names are somewhat self-explanatory but incomplete for an agent to invoke correctly without format 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?

The description clearly states the action (merge), resource (entities), and the effect: rewrites observations and marks source as merged. It distinguishes from sibling tools like split_entity.

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?

Implied usage for deduplication, but no explicit guidance on when to use vs alternatives (e.g., delete_entity, split_entity). No prerequisites or exclusions mentioned.

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