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reddit-ads-mcp

reddit-ads-mcp

by filippofinke
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Local

Create product set

reddit_ads_create_product_set

Create a filtered product set for catalog ad groups to target specific products in Reddit Ads, using a catalog ID and filter rules.

Instructions

Create a filtered product set for catalog ad groups (product_set_id).

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "catalog_id": "<catalog_id>",
      "data": "<data>"
    },
    "name": "reddit_ads_create_product_set"
  }
}

Input Schema

NameRequiredDescriptionDefault
dataYesSent as {"data": {...}}. Fields: name (max 100), filter (filter rule string).
catalog_idYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=true, so the agent knows this is a non-destructive write operation. The description adds that the product set is 'filtered' and intended for catalog ad groups, but it does not disclose auth requirements, rate limits, idempotency, or what is returned. With annotations covering the safety profile, this is adequate but thin.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single front-loaded sentence with no filler, immediately conveying the action, resource, and domain. Every clause earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a create operation with a nested object, no output schema, and only 50% parameter description coverage, the description is too sparse. It leaves catalog_id semantics, filter rule syntax, and return behavior undocumented. Annotations cover safety, but an agent would still lack important invocation context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters2/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 50%: the nested data object is partially described, but catalog_id has no description. The description does not explain what catalog_id represents or how the filter rule string should be formatted, and the mention of 'product_set_id' is not an input parameter. It therefore fails to compensate for the schema's gaps.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

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 filtered product set.' It also clarifies the domain ('for catalog ad groups') and likely returned identifier ('product_set_id'). However, it does not explicitly differentiate the tool from siblings like reddit_ads_create_catalog or reddit_ads_create_product_feed, so it falls short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no when-to-use guidance, no alternatives, and no prerequisites. It only implies usage by saying the product set is for catalog ad groups, but does not tell the agent when to choose this tool over reddit_ads_update_product_set, reddit_ads_create_catalog, or other create siblings.

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

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