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Morpha

by ai.morphareels
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Remove from collection

remove_from_collection
Destructive

Remove a layer from the user's Collection so it's no longer offered for reuse. Pass the element id that was added with add_to_collection. Copies already placed in other projects are unaffected (they're self-contained). No-op if the id isn't in the collection.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
elementIdYesThe element id to remove from the Collection.
projectIdYesOpaque project id (a v4 UUID, from list_projects/create_project). Selects which existing project this call mutates.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
okYesWhether the call succeeded.
dataNoThe payload, shaped by the tool.
noteNoWhat to do next when not ready.
errorNoWhy it failed.
statusNoFor cache-backed readers: whether the answer was ready.
editorUrlNoOpens this project in the editor.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • removedInput schema / properties / anonymousToken
      Removed value: -{
-  "description": "The token create_anonymous_account returned. This connection has no Morpha key, so every call carries it.",
-  "type": "string"
-}
    • changedInput schema / required
      Previous value: -[
-  "elementId",
-  "projectId",
-  "anonymousToken"
-]New value: +[
+  "elementId",
+  "projectId"
+]
  2. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "description": "The result envelope every Morpha tool returns.",
+  "properties": {
+    "data": {
+      "description": "The payload, shaped by the tool.",
+      "type": [
+        "object",
+        "array",
+        "string",
+        "number",
+        "boolean",
+        "null"
+      ]
+    },
+    "editorUrl": {
+      "description": "Opens this project in the editor.",
+      "type": "string"
+    },
+    "error": {
+      "description": "Why it failed.",
+      "type": "string"
+    },
+    "note": {
+      "description": "What to do next when not ready.",
+      "type": "string"
+    },
+    "ok": {
+      "description": "Whether the call succeeded.",
+      "type": "boolean"
+    },
+    "status": {
+      "description": "For cache-backed readers: whether the answer was ready.",
+      "enum": [
+        "ready",
+        "not-ready"
+      ],
+      "type": "string"
+    }
+  },
+  "required": [
+    "ok"
+  ],
+  "type": "object"
+}
  3. Changed2 schema fields changed
    • addedInput schema / properties / anonymousToken
      Added value: +{
+  "description": "The token create_anonymous_account returned. This connection has no Morpha key, so every call carries it.",
+  "type": "string"
+}
    • changedInput schema / required
      Previous value: -[
-  "elementId",
-  "projectId"
-]New value: +[
+  "elementId",
+  "projectId",
+  "anonymousToken"
+]
  4. First observed

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already signal readOnlyHint=false and destructiveHint=true, so mutation is expected. The description adds meaningful behavioral details beyond those annotations: removal only affects the Collection, copies in other projects remain self-contained, and the call is a no-op for unknown ids. This clarifies the destructive scope and prevents an agent from overestimating side effects.

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 three concise sentences, each earning its place: it states the purpose, gives the key input provenance, and explains edge-case behavior. The most important information is front-loaded, and there is no redundant wording or repetition of schema fields.

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 two-parameter mutation tool with complete schema documentation and an output schema, the description covers the essential behavioral edges: input provenance, no-op behavior, and limited destructive scope. Nothing an agent needs to invoke it correctly appears to be missing.

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 description coverage is 100%, so the schema already documents elementId and projectId. The description adds extra semantic value by specifying that elementId should come from add_to_collection and that unknown ids are harmless no-ops. It does not add projectId context, but the schema already covers that parameter fully.

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?

The description uses a specific verb ('Remove') and a clear resource ('layer from the user's Collection') and states the intended consequence ('no longer offered for reuse'). It also distinguishes itself from related sibling tools like remove_layer and add_to_collection by clarifying that the operation targets the reusable Collection rather than placed project layers.

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

Usage Guidelines4/5

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

The description gives clear context on when to use it: to remove a previously added collection element, and it tells the agent to pass the element id from add_to_collection. It does not explicitly list exclusions or compare with all alternatives, but the 'no-op if the id isn't in the collection' and 'copies are unaffected' guidance usefully shape invocation expectations.

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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