Minds: Synthetic Market Research

Create a Study

create_study

Idempotent

Creates a Study workspace from existing Audiences or inline Audience configurations. It does not ask questions or run research, and follow-up research inside an existing Study needs no new Study.

A Study with this exact name is named back and nothing is created, unless allowDuplicateName is true; work in that Study instead. Studies cannot be deleted here, so any extra Study is permanent.

Any request with two or more known questions belongs in one planned and confirmed multi-question block inside the Study, submitted once rather than as separate direct questions.

Creation is atomic and rolls back partial Audience failures. Studies are private; enabling link sharing also publishes the attached Audiences and their Minds. It cannot publish, share or replace an existing Study: that sharing changes only in the workspace.

Input Schema

TableJSON Schema

Name	Required	Description
`name`	Yes	Name for the Study workspace (e.g., "Brand Perception Study", "Q4 Market Research")
`audienceIds`	No	Preferred field for existing Audience IDs to attach — use list_audiences to find IDs.
`audienceConfigs`	No	Preferred field for new Audiences to create and attach atomically.
`conversationFiles`	No	Stimulus for the new Study, stored in Minds and returned as attachments (url, path) to pass with its questions. Respondents see a file only once a question carries it. Files shared in this conversation: uploaded or generated images, PDFs, documents. Each is copied into Minds storage on receipt; its file_id is its attachment id.
`allowDuplicateName`	No	Create even though a Study with exactly this name exists. Only when the user asked for a separate Study with the same name.
`isLinkSharingEnabled`	No	Set true ONLY when the user explicitly asked for a public/shareable Study link. Defaults to false: the Study is private to its owner and no share URL is generated. Enabling this ALSO publishes every attached Audience and every Mind inside them at world-readable URLs — including pre-existing Audiences passed via audienceIds. Do not enable it to "be helpful".

Output Schema

TableJSON Schema

Name	Required	Description
`name`	No	Study name.
`studyId`	No	Created Study.
`replayed`	No	True when an identical request returned the Study created earlier.
`audiences`	No	Audiences attached to the Study.
`workspaceUrl`	No	Authenticated Minds workspace link for the Study.
`publicShareId`	No	Public share identifier, or null.
`sharedStudyUrl`	No	Public share link, or null when link sharing is off.
`isLinkSharingEnabled`	No	Whether the public share link is on.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 7, 2026

addedInput schema / properties / allowDuplicateName

Added value: +{
+  "description": "Create even though a Study with exactly this name exists. Only when the user asked for a separate Study with the same name.",
+  "type": "boolean"
+}

Changed14 schema fields changedOct 2, 2026

removedOutput schema / properties / isLinkSharingEnabled / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / isLinkSharingEnabled / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```

removedOutput schema / properties / name / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / name / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / publicShareId / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / publicShareId / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / replayed / anyOf

Removed value: -[
-  {
-    "type": "boolean"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / replayed / type
```
Added value: +[
+  "boolean",
+  "null"
+]
```

removedOutput schema / properties / sharedStudyUrl / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / sharedStudyUrl / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / studyId / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / studyId / type
```
Added value: +[
+  "string",
+  "null"
+]
```

removedOutput schema / properties / workspaceUrl / anyOf

Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]

addedOutput schema / properties / workspaceUrl / type
```
Added value: +[
+  "string",
+  "null"
+]
```

Changed1 schema field changedOct 1, 2026

addedInput schema / properties / conversationFiles

Added value: +{
+  "description": "Stimulus for the new Study, stored in Minds and returned as attachments (url, path) to pass with its questions. Respondents see a file only once a question carries it. Files shared in this conversation: uploaded or generated images, PDFs, documents. Each is copied into Minds storage on receipt; its file_id is its attachment id.",
+  "items": {
+    "properties": {
+      "download_url": {
+        "description": "Download URL the chat host supplies for this file.",
+        "minLength": 1,
+        "type": "string"
+      },
+      "file_id": {
+        "description": "The chat host's ID for this file.",
+        "minLength": 1,
+        "type": "string"
+      },
+      "file_name": {
+        "description": "File name when the host supplies it.",
+        "minLength": 1,
+        "type": "string"
+      },
+      "mime_type": {
+        "description": "MIME type when the host supplies it.",
+        "minLength": 1,
+        "type": "string"
+      }
+    },
+    "required": [
+      "download_url",
+      "file_id"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

Changed2 schema fields changedSep 22, 2026

removedInput schema / properties / groupConfigs

Removed value: -{
-  "description": "Legacy alias for audienceConfigs.",
-  "items": {
-    "properties": {
-      "mindIds": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "name": {
-        "type": "string"
-      }
-    },
-    "type": "object"
-  },
-  "type": "array"
-}

removedInput schema / properties / groupIds

Removed value: -{
-  "description": "Legacy alias for audienceIds.",
-  "items": {
-    "type": "string"
-  },
-  "type": "array"
-}

Changed1 schema field changedSep 20, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "properties": {
+    "audiences": {
+      "anyOf": [
+        {
+          "items": {},
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Audiences attached to the Study."
+    },
+    "isLinkSharingEnabled": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Whether the public share link is on."
+    },
+    "name": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Study name."
+    },
+    "publicShareId": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Public share identifier, or null."
+    },
+    "replayed": {
+      "anyOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "True when an identical request returned the Study created earlier."
+    },
+    "sharedStudyUrl": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Public share link, or null when link sharing is off."
+    },
+    "studyId": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Created Study."
+    },
+    "workspaceUrl": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "description": "Authenticated Minds workspace link for the Study."
+    }
+  },
+  "type": "object"
+}

Changed1 schema field changedSep 9, 2026

changedInput schema / properties / audienceConfigs / items / properties / mindIds / description

Previous value: -"Mind IDs to add to this Audience — use list_minds to find IDs."New value: +"IDs of existing Minds to add to this Audience."

Changed1 schema field changedSep 2, 2026

removedInput schema / properties / groupConfigs / items / properties / sparkIds

Removed value: -{
-  "description": "Legacy alias for mindIds.",
-  "items": {
-    "type": "string"
-  },
-  "type": "array"
-}

Changed5 schema fields changedSep 1, 2026

changedInput schema / properties / groupConfigs / description

Previous value: -"Legacy alias for audienceConfigs. Accepted for compatibility."New value: +"Legacy alias for audienceConfigs."

removedInput schema / properties / groupConfigs / items / properties / mindIds / description
```
Removed value: -"Mind IDs to add to this Audience — use list_minds to find IDs"
```

removedInput schema / properties / groupConfigs / items / properties / name / description

Removed value: -"Audience name (optional — defaults to \"Audience N\"). E.g., \"Gen Z Consumers\", \"Marketing Experts\""

changedInput schema / properties / groupConfigs / items / properties / sparkIds / description

Previous value: -"Legacy alias for mindIds. Accepted for back-compat."New value: +"Legacy alias for mindIds."

changedInput schema / properties / groupIds / description

Previous value: -"Legacy alias for audienceIds. Accepted for compatibility."New value: +"Legacy alias for audienceIds."

AddedAug 27, 2026

TDQS

A4.8/5.0

Behavior5/5

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

Annotations cover only the basic safety profile; the description adds substantive behavior beyond them: name-collision no-op semantics, that Studies are permanent and cannot be deleted, that creation is atomic with rollback of partial Audience failures, and that isLinkSharingEnabled publishes every attached Audience and Mind at world-readable URLs, including pre-existing ones. These are exactly the side effects an agent must know before calling.

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

Conciseness4/5

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

Purpose is front-loaded and the ordering (what it does, duplicate handling, multi-question guidance, atomicity, privacy) is logical. It is long for a create tool, and the closing sentence about not publishing/replacing an existing Study is compressed to the point of being ambiguous ('that sharing changes only in the workspace').

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

Completeness5/5

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

For a 6-parameter mutation tool with an output schema, everything an agent needs is present: collision handling, non-deletability, atomic rollback, and the public-sharing side effect on nested Audiences and Minds. Return values are correctly left to the output schema.

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

Parameters4/5

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

Schema coverage is 100%, so the baseline is 3, but the description adds real meaning to parameters: it frames the duplicate-name case that allowDuplicateName governs and ties isLinkSharingEnabled to publishing attached Audiences and Minds. It stops short of new syntax or edge-case detail for conversationFiles beyond what the schema already documents.

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?

First sentence states a specific verb and resource (creates a Study workspace) and its two input modes (existing Audiences or inline configs), then immediately scopes it against neighbors: 'It does not ask questions or run research.' An agent can distinguish this from ask_study, plan_study_questions, and duplicate_study 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?

Explicit when/when-not routing: follow-up research in an existing Study needs no new Study; a same-named Study means 'work in that Study instead' unless allowDuplicateName is true; two-or-more known questions belong in one planned multi-question block rather than separate direct questions. It also names the alternative path (audienceIds vs audienceConfigs) and points to list_audiences.

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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