Skip to main content
Glama
Sign In
cavi-ai

ableton-mcp

by cavi-ai
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Local

get_device_activation_context

Read-onlyIdempotent

Reads a device's activation state—Device On, local on/off, native and rack activation, automation, and edit-safety—without changing focus or playback.

Instructions

Read one exact device's binary Device On control, local on/off, effective native activation, enclosing rack activation, automation and edit-safety context. Preserves focus/playback; unsupported controls explicit. All profile; updated bridge.

Input Schema

NameRequiredDescriptionDefault
trackIdYestrack-N from list_tracks, return-N from get_set_mixer, or master.
deviceIdYesID from list_devices.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv0.3.1
    • removedOutput schema / additionalProperties
      Removed value: -true
    • addedOutput schema / anyOf
      Added value: +[
+  {
+    "properties": {
+      "clipId": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "device": {
+        "type": "object"
+      },
+      "deviceId": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "editContext": {
+        "type": "object"
+      },
+      "identityToken": {
+        "type": "string"
+      },
+      "reason": {
+        "anyOf": [
+          {
+            "type": "string"
+          },
+          {
+            "type": "null"
+          }
+        ]
+      },
+      "setFingerprint": {
+        "type": "string"
+      },
+      "stateVersion": {
+        "minimum": 1,
+        "type": "integer"
+      },
+      "status": {
+        "type": "string"
+      },
+      "supported": {
+        "type": "boolean"
+      },
+      "trackId": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "stateVersion"
+    ],
+    "type": "object"
+  },
+  {
+    "properties": {
+      "error": {
+        "properties": {
+          "message": {
+            "type": "string"
+          },
+          "outcome": {
+            "enum": [
+              "unknown",
+              "not_executed"
+            ]
+          }
+        },
+        "required": [
+          "message",
+          "outcome"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "error"
+    ],
+    "type": "object"
+  }
+]
  2. Addedv0.3.0

TDQS

B3.4/5.0
Behavior4/5

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

Annotations already establish that this is read-only, idempotent, non-destructive, and closed-world. The description adds useful behavioral context that focus and playback are preserved and that unsupported controls are reported explicitly, though the final phrase 'All profile; updated bridge' is opaque.

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?

The description is short and front-loads the read operation, but it is dense with specialized terminology and semicolon fragments. The trailing 'All profile; updated bridge' is cryptic and does not clearly earn its place.

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

Completeness4/5

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

For a read-only context tool with a full output schema and annotations, the description covers the important activation and edit-safety aspects an agent needs. It does not explain how to interpret unsupported controls or the final profile/bridge note, but the structured fields carry most of the remaining detail.

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

Parameters3/5

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

Schema description coverage is 100%, and the schema already explains that trackId comes from list_tracks, get_set_mixer, or master, and deviceId comes from list_devices. The description reinforces 'one exact device' but adds no further parameter semantics beyond what the schema provides.

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 clearly states a specific read operation for one device's activation context, listing the concrete facets returned: Device On, local on/off, effective native activation, rack activation, automation, and edit safety. It is distinguishable from write siblings like set_device_active, but it does not explicitly name alternatives to reinforce sibling differentiation.

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?

There is no explicit guidance on when to use this tool versus alternatives such as set_device_active, get_device_ab_context, or list_device_parameters. The purpose implies inspection, but the description does not state prerequisites, exclusions, or decision rules.

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

Deploy Server

Other Tools