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

No annotations are provided, so the description carries the full behavioral burden, which it handles reasonably well. It discloses the mutation behavior (replaces the COMPONENT_REF step, drops linkage), the limitation (one level only), and the auth requirement (user ownership). It doesn't describe reversibility or whether the original component remains intact, leaving some gaps, but the core behavioral traits are well covered.

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?

Three well-structured sentences with zero wasted words. It front-loads the action, then covers consequences, limitations, and requirements efficiently. Every sentence contributes substantive information.

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 no annotations and no output schema, the description does most of the work, and it covers the key concerns: the semantic meaning of detach, the one-level limitation, ownership requirements, and post-detach behavior. It doesn't specify error conditions or whether there's an inverse operation to re-link, but for a 2-parameter tool with a clear scope this is a solid, near-complete description.

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 100%, so the schema already documents both parameters. The description adds context around stepIndex ('COMPONENT_REF step to detach') and recordingId ('Test recording ID containing the component reference') but this largely mirrors schema language. The description's context about what 'detach' means adds some value beyond the schema, warranting a baseline 3.

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 specific verb 'Detach (materialize) a component reference' with the resource ('in a test') and the outcome (replaces live COMPONENT_REF with private editable copy). It distinguishes from sibling tools like flow_recording_insert_component and flow_recording_replace_step by explaining this is specifically about breaking the component linkage.

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 explains what happens after detaching (future edits no longer propagate), provides the 'one level only' constraint, and states the ownership requirement ('must belong to the authenticated user'). It implies when to use (when you want editable private steps rather than a shared component), though it doesn't explicitly name a non-usage case or alternative tool.

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