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

No annotations exist, and the description is too brief to disclose behavior such as side effects, idempotency, permissions, or error conditions. It fails to inform the agent about important behavioral aspects.

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 extremely short (5 words), which aids conciseness but sacrifices completeness. It is not well-structured to front-load critical information, and the brevity reduces its utility.

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 has 4 parameters, no output schema, and many sibling tools, the description is severely incomplete. It lacks information on return values, side effects, and relationship to other tools.

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 no extra meaning beyond the input schema. Two parameters (npub, dpop_token) lack schema descriptions, and the description does not cover them. With 50% schema coverage, the description should compensate but does not.

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 'Register a symbol an invariant guards' is grammatically awkward but conveys the core action: registering a symbol that an invariant guards. However, it lacks clarity and does not explicitly differentiate from siblings like cypher_anchor_symbol or cypher_assert_invariant.

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?

No guidance is provided on when to use this tool versus alternatives, prerequisites, or context. With many sibling tools, clear usage guidelines are missing.

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