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.

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.. 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

A4.2/5.0

Behavior5/5

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

Annotations already declare the mutation/idempotency safety profile, and the description adds substantially beyond them: billable AI usage, synchronous execution, mutation modes (validate_only, preview_only, execute), and a partial-failure policy (completed_items_not_rolled_back). It also explains the deterministic idempotency-key derivation, giving concrete retry semantics rather than just repeating idempotentHint.

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

Conciseness3/5

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

Purpose and routing are correctly front-loaded, but the body is a dense metadata dump followed by response-formatting instructions ("Never display raw JSON...") that read like a system prompt rather than tool-selection guidance. Some of that content earns its place, but the overall block is longer than the invocation task requires.

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?

Behavioral context is strong and an output schema exists (so return values need no explanation), but for a 40-parameter create tool with zero schema description coverage the description leaves required-input semantics and input formatting essentially undocumented. Adequate on behavior, incomplete on inputs.

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, so the description is the only source of parameter meaning — but it explains only idempotencyKey. Nothing is said about the five required fields (campaignName, objective, audience, KPI, funnelStage) or the many nested/optional structures, so the gap is largely unmitigated.

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+resource ("Plan and create an initial Studio creative set") plus a clear scope condition ("for a campaign that has no saved creatives"), and explicitly names the sibling to use instead (build_ad) for the rebuild case. An agent can separate this from build_ad/build_dooh without opening a schema.

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 both the when-to-use condition (a campaign with no saved creatives) and an explicit when-not-to-use with the named alternative ("Do not use this tool to rebuild existing creatives; use build_ad with campaignId or campaignName"). Routing is unambiguous.

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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