add_observations

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

No annotations exist. The description only says 'append new observations' without disclosing side effects, error states (e.g., if entity doesn't exist), permissions, or idempotency. For a mutation tool, this is insufficient.

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 one sentence—efficient but overly minimal. It conveys the basic purpose but omits critical details, making it borderline under-specified.

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?

With 3 required parameters, no parameter descriptions, no annotations, and only a one-sentence description, the agent lacks enough context to correctly invoke the tool. The existence of an output schema does not compensate for missing usage context.

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 description coverage is 0%. The description does not explain any parameters (name, project, observations) beyond their schema types and requirements. The agent gains no added meaning from the description.

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 'append' and the resource 'observations to an existing entity', which is specific and distinct from sibling tools like create_entity or delete_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: it appends observations to an existing entity. But no explicit guidance on when to use or when not to, nor any alternatives mentioned.

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