LeanrIQ

Plan and create an initial Studio creative set for a campaign that has no saved creatives. Do not use this tool to rebuild existing creatives; use build_ad with campaignId or campaignName, which resolves and rebuilds the full saved Studio inventory. (deprecated alias)

leanr_build_campaign_creative_set

Idempotent

Plan and create an initial Studio creative set for a campaign that has no saved creatives. Do not use this tool to rebuild existing creatives; use build_ad with campaignId or campaignName, which resolves and rebuilds the full saved Studio inventory.. Deprecated alias for build_campaign_creative_set. Classification: creates billable AI usage. Execution: synchronous. Task support: forbidden. Mutation modes: validate_only, preview_only, execute. Partial failure policy: completed_items_not_rolled_back. The returned JSON is internal application state for LeanrIQ and ChatGPT orchestration. Use assistantSummary first when responding to the user. Never display raw JSON, data, or meta unless the user explicitly asks for raw JSON. Mention IDs only when useful for follow-up or debugging. Prefer concise, human language, highlight the most useful insight, and suggest the next best LeanrIQ action. If idempotencyKey is omitted on a mutation, the MCP layer derives a deterministic retry key from the tool and business arguments so an accidental identical replay cannot create duplicate work.

Input Schema

Name	Required	Default
`KPI`	Yes
`brand`	No
`notes`	No
`budget`	No
`seatId`	No
`billing`	No
`channel`	No	display
`endDate`	No
`outputs`	No
`sandbox`	No
`audience`	Yes
`operator`	No
`seatName`	No
`accountId`	No
`objective`	Yes
`startDate`	No
`campaignId`	No
`doohContext`	No
`funnelStage`	Yes
`targetSizes`	No
`advertiserId`	No
`campaignName`	Yes
`generateTags`	No
`saveToStudio`	No
`sourceLocale`	No
`targetMarket`	No
`contentLocale`	No
`marketContext`	No
`targetMarkets`	No
`contentLocales`	No
`idempotencyKey`	No
`desiredVariantCount`	No
`defaultContentLocale`	No
`marketLanguageProfile`	No
`resolvedContentLocale`	No
`strictBrandCompliance`	No
`languageVariantGroupId`	No
`requestedOutputLocales`	No
`supportedContentLocales`	No
`createAdvertiserIfMissing`	No

Output Schema

Name	Required	Description	Default
`data`	Yes
`meta`	Yes
`error`	No
`status`	Yes
`assistantSummary`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed13 schema fields changedOct 13, 2026

addedInput schema / properties / contentLocale
```
Added value: +{
+  "type": "string"
+}
```

addedInput schema / properties / contentLocales

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 20,
+  "type": "array"
+}

addedInput schema / properties / defaultContentLocale
```
Added value: +{
+  "type": "string"
+}
```

addedInput schema / properties / languageVariantGroupId

Added value: +{
+  "maxLength": 160,
+  "minLength": 1,
+  "type": "string"
+}

addedInput schema / properties / marketContext

Added value: +{
+  "properties": {
+    "currency": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "targetMarket": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "targetMarkets": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "timeZone": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "type": "object"
+}

addedInput schema / properties / marketLanguageProfile

Added value: +{
+  "additionalProperties": {},
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

addedInput schema / properties / outputs

Added value: +{
+  "items": {
+    "anyOf": [
+      {
+        "additionalProperties": false,
+        "properties": {
+          "type": {
+            "const": "editable",
+            "type": "string"
+          }
+        },
+        "required": [
+          "type"
+        ],
+        "type": "object"
+      },
+      {
+        "additionalProperties": false,
+        "properties": {
+          "format": {
+            "enum": [
+              "jpeg",
+              "png"
+            ],
+            "type": "string"
+          },
+          "maxBytes": {
+            "exclusiveMinimum": 0,
+            "maximum": 9007199254740991,
+            "type": "integer"
+          },
+          "quality": {
+            "maximum": 100,
+            "minimum": 1,
+            "type": "integer"
+          },
+          "type": {
+            "const": "static",
+            "type": "string"
+          }
+        },
+        "required": [
+          "type"
+        ],
+        "type": "object"
+      },
+      {
+        "enum": [
+          "editable",
+          "static_jpeg",
+          "static_png"
+        ],
+        "type": "string"
+      }
+    ]
+  },
+  "maxItems": 8,
+  "type": "array"
+}

addedInput schema / properties / requestedOutputLocales

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 20,
+  "type": "array"
+}

addedInput schema / properties / resolvedContentLocale
```
Added value: +{
+  "type": "string"
+}
```
addedInput schema / properties / sourceLocale
```
Added value: +{
+  "type": "string"
+}
```

addedInput schema / properties / supportedContentLocales

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "maxItems": 20,
+  "type": "array"
+}

addedInput schema / properties / targetMarket

Added value: +{
+  "maxLength": 160,
+  "minLength": 1,
+  "type": "string"
+}

addedInput schema / properties / targetMarkets

Added value: +{
+  "items": {
+    "maxLength": 160,
+    "minLength": 1,
+    "type": "string"
+  },
+  "maxItems": 50,
+  "type": "array"
+}

Changed2 schema fields changedSep 28, 2026

addedInput schema / properties / channel

Added value: +{
+  "default": "display",
+  "enum": [
+    "display",
+    "dooh"
+  ],
+  "type": "string"
+}

addedInput schema / properties / doohContext

Added value: +{
+  "additionalProperties": {},
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

First observedAug 12, 2026

TDQS

A4.1/5.0

Behavior5/5

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

Annotations only say it is a non-read-only, idempotent, non-destructive operation. The description adds billable AI usage, synchronous execution, forbidden task support, three mutation modes (validate_only/preview_only/execute), and a completed_items_not_rolled_back partial-failure policy, plus how an omitted idempotencyKey is derived. This is substantial context beyond the structured hints.

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

Conciseness2/5

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

The first two sentences duplicate the title verbatim, and a large block of response-formatting boilerplate (assistantSummary, never display raw JSON, mention IDs only when useful) is generic cross-tool guidance rather than tool-selection content. Structure is labeled but bloated.

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

Completeness3/5

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

With an output schema present, return values need not be described, and behavior/mutation/idempotency are well covered. However, given 40 parameters and 0% schema description coverage, required-input semantics are left entirely unexplained, so the definition is only partially complete for a tool of this complexity.

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 0% across 40 parameters, and the description explains none of the business inputs (objective, audience, KPI, funnelStage, campaignName, outputs, budget). Only idempotencyKey gets behavioral explanation. For a tool this wide, the description does not compensate for the schema gap.

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

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource with scope: 'Plan and create an initial Studio creative set for a campaign that has no saved creatives.' It also distinguishes itself from the sibling build_ad and notes it is a deprecated alias for build_campaign_creative_set, so an agent can place it precisely in the tool graph.

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

Usage Guidelines5/5

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

Gives an explicit exclusion and a named alternative: 'Do not use this tool to rebuild existing creatives; use build_ad with campaignId or campaignName.' Combined with the deprecated-alias note pointing at build_campaign_creative_set, both the when and the when-not are covered.

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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