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

With no annotations, the description carries the full burden of behavioral disclosure. It indicates a creation operation and that the product is for sale, but says nothing about permissions, side effects, validation rules, or what happens on success or failure.

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 single sentence is concise and front-loaded, but its brevity reflects under-specification rather than efficient communication. For a five-parameter mutation, more structure and detail are needed.

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?

The definition is far too sparse for a creation tool with five parameters, no annotations, and no output schema. It leaves essential information about parameters, behavior, and usage entirely unaddressed.

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 does not explain any of the five parameters. Required fields like universeId and price, and optional fields like imagePath and description, are left entirely to the bare schema.

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 and resource: create a developer product. It is clear what the tool does, though it does not explicitly distinguish the tool from siblings like create_game_pass beyond the resource name.

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?

There is no guidance on when to use this tool versus alternatives such as create_game_pass or list_monetization. The parenthetical '(for sale)' is the only contextual hint, and no prerequisites or exclusions are provided.

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

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

No annotations are supplied, so the description carries the full behavioral burden, yet it only hints that the pass is purchasable ("for sale"). It says nothing about required permissions, whether the pass goes live immediately, whether creation is idempotent, or what is returned — significant gaps for a mutation 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?

The single short sentence is front-loaded and free of padding, but it is under-specified rather than concise — brevity here costs information rather than saving it.

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?

For a 5-parameter mutation tool with no annotations, no output schema, and zero schema description coverage, one sentence is far from sufficient. An agent cannot tell what a valid call requires beyond the field names or what happens after creation.

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% across 5 parameters, so the description should compensate, but it adds no meaning for universeId, price, imagePath, or description. The only hint is that price relates to sale, which is already obvious from the parameter name and minimum constraint.

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 gives a clear verb+resource ("Create one game pass") which is understandable on its own, but it does nothing to differentiate from the sibling create_developer_product, and the parenthetical "(for sale)" is ambiguous rather than clarifying scope.

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?

There is no guidance on when to use this tool versus create_developer_product or list_monetization, no prerequisites, and no stated alternatives. The agent must infer everything from the name alone.

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

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

No annotations are supplied, so the description carries the full burden, and 'List all' at least implies a non-mutating, non-paginated full enumeration. However it never addresses authorization requirements, whether the two resource types come back merged or separately, or what an empty universe returns — meaningful gaps for a tool with zero annotation coverage.

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?

One sentence, front-loaded with the verb and scope, with no filler or redundancy. Nothing could be trimmed without losing meaning.

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?

For a simple single-parameter read tool with no output schema, the definition is minimally adequate but leaves the agent guessing about the return shape (one combined list vs two separate collections) and about the required identifier's origin. Slightly more context would make it fully self-sufficient.

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%, so the single universeId parameter is documented nowhere. The phrase 'in a universe' loosely maps to universeId, but the description adds no format, range, or provenance guidance (e.g. where to obtain the ID) beyond what the property name already suggests.

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 (List) and two concrete resources (game passes, developer products) scoped to a universe, which is enough to distinguish it from the create_* siblings. It stops short of naming those siblings or contrasting behavior explicitly.

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?

Usage is only implied: the verb 'List' signals a read operation and the sibling names (create_game_pass, create_developer_product) make the read-vs-create split inferable. There is no explicit statement of when to prefer this tool, nor any precondition such as needing an existing universe or ownership permissions.

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

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

With no annotations, the description carries the full burden; it does disclose the key traits of idempotency and that it mutates the game's Luau config file, which is valuable. It omits what happens on partial failure, whether existing config content is preserved or overwritten, permission/auth requirements, and what is returned after creation.

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?

Short and front-loaded: the core action and idempotency come first, with the input-mode and dryRun notes following. Each sentence carries content, though the phrasing is clipped to the point of underspecifying the alternative input path.

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?

For a 7-parameter mutation tool with no annotations and no output schema, the description is thin: it never explains default config location, how items and specPath interact if both are given, or what the caller gets back after IDs are written.

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%, so the description must compensate, and it only covers specPath, dryRun, and vaguely "fields inline." Four parameters (passTable, productTable, configPath, universeId) and the required-key structure of items (key/kind/name/price) receive no explanation anywhere.

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?

States specific verbs and resources: create missing passes/products and write their IDs into the Luau config. This distinguishes it from the pure-creation siblings by its sync/ID-writeback scope, though it doesn't explicitly name create_game_pass or create_developer_product as the single-item alternatives.

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?

Gives a useful operating hint ("Use dryRun first") and a choice of input modes (specPath or inline fields), but never states when to prefer this bulk sync over the sibling create_game_pass/create_developer_product tools, or what preconditions (e.g., existing config file) are needed.

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