Remove From Favorites

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

With no annotations supplied, the description carries the full burden and does a good job: it states the removal is persistent, irreversible ('Cannot be undone (recipe would need to be re-added manually)'), scoped by optional user_session, and that it reports whether the record was actually found. It omits any permission or authentication requirements, which is the main remaining gap for a destructive mutation.

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 purpose is front-loaded, but the body repeats itself: 'clean up your favorites collection' appears both in the intro and as the first 'Use this tool when' bullet, and the numbered removal-process list largely restates the prose above it. Several sentences could be merged without losing 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?

An output schema exists, so return shape need not be documented, and the description still notes that removal confirmation is reported. For a single-parameter destructive tool this covers the essentials; only the permission/prerequisite context and the role of the unused nested fields are missing.

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 baseline is 3. The description does add meaning for user_session ('for targeted removal') beyond the schema's generic 'User session identifier', but it says nothing about recipe_title or custom_notes, which appear in the schema yet are meaningless for a delete operation, leaving ambiguity about whether they must be supplied.

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 first sentence gives a specific verb and resource ('Remove a recipe from user favorites') and the word 'permanently' sets it apart from the reversible add_to_favorites counterpart. It stops short of naming the sibling tools, so an agent must infer the boundary from the title alone.

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?

A dedicated 'Use this tool when:' list enumerates four concrete scenarios (cleanup, no longer interested, per-session management, correcting mistakes). It gives no explicit when-not conditions and does not name list_favorites or add_to_favorites as alternatives, so routing between siblings is only implied.

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