create_limb_ik

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

With no annotations provided, the description must disclose behavioral traits itself. It mentions 'verified' and 'reuse' but does not explain what verification entails, what happens when reuse is not possible, what constraints are created, or if any destructive side effects occur. This is a significant gap for a mutating 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?

A single sentence that is front-loaded with the core function ('Create or reuse') and contains zero extraneous words. It is appropriately sized for the relatively simple action it describes.

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 four parameters with zero schema descriptions, no annotations, and an output schema, the description is far from complete. It omits parameter semantics, usage context, and behavioral details (e.g., verification process, side effects). An output schema exists but does not compensate for the missing execution guidance.

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% and the description mentions none of the four parameters (armature_name, end_bone, target_name, chain_length). It does not add any meaning beyond the raw schema, failing to compensate for the undocumented parameters. The agent would have no idea what values to supply for target_name or chain_length.

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 states a specific verb ('Create or reuse') and explicit resources ('world-space paw target' and 'IK constraint') on a 'verified limb end bone'. This clearly distinguishes the tool from siblings like key_paw_pose (posing) and discover_limb_chains (discovery), so an agent can immediately understand its role.

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, nor any exclusions. It does not mention prerequisites like prior verification via inspect_rig or discover_limb_chains, nor compare to other IK-related tools. The intended call context is left entirely to inference.

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