TuneWorks

Get custom track

get_custom_track

Read-only

Read one accessible custom track.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "trackId": "<trackId>"
    },
    "name": "get_custom_track"
  }
}

Input Schema

Name	Required	Description	Default
`trackId`	Yes

Output Schema

Name	Required	Description
`logs`	No
`tool`	Yes	TuneWorks MCP tool name that produced this result.
`user`	No
`count`	No
`lists`	No
`setups`	No
`status`	Yes	Stable result status such as ok, created, updated, sent, auth_required, or confirmation_required.
`message`	No
`outcome`	No	Optional domain outcome for an otherwise successful read.
`sessions`	No
`vehicles`	No
`snapshots`	No
`activation`	No
`maintenance`	No
`modifications`	No
`requestedVehicleId`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed8 schema fields changedOct 24, 2026

addedOutput schema / properties / activation

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "goal": {
+      "const": "optimize_vehicle",
+      "type": "string"
+    },
+    "missingData": {
+      "items": {
+        "enum": [
+          "vehicle",
+          "accessible_vehicle_id",
+          "baseline_setup",
+          "driving_session",
+          "vehicle_build_state",
+          "vehicle_logs",
+          "structured_vehicle_modifications"
+        ],
+        "type": "string"
+      },
+      "type": "array",
+      "uniqueItems": true
+    },
+    "nextActions": {
+      "items": {
+        "oneOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "arguments": {
+                "additionalProperties": false,
+                "properties": {
+                  "vehicleId": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "vehicleId"
+                ],
+                "type": "object"
+              },
+              "optional": {
+                "type": "boolean"
+              },
+              "reason": {
+                "type": "string"
+              },
+              "requiredInputs": {
+                "items": {
+                  "enum": [
+                    "year",
+                    "make",
+                    "model",
+                    "purpose",
+                    "displacement",
+                    "engineType",
+                    "aspiration",
+                    "cylindersOrRotors",
+                    "fuel",
+                    "fuelRating",
+                    "setupName",
+                    "setupDate",
+                    "sessionDate",
+                    "sessionFormat",
+                    "modifications",
+                    "category",
+                    "system",
+                    "status",
+                    "brand",
+                    "partName"
+                  ],
+                  "type": "string"
+                },
+                "type": "array",
+                "uniqueItems": true
+              },
+              "tool": {
+                "enum": [
+                  "create_vehicle",
+                  "list_vehicles",
+                  "get_vehicle_context",
+                  "create_setup",
+                  "create_session",
+                  "update_vehicle",
+                  "create_vehicle_modification"
+                ],
+                "type": "string"
+              },
+              "type": {
+                "const": "tool",
+                "type": "string"
+              }
+            },
+            "required": [
+              "type",
+              "tool",
+              "reason"
+            ],
+            "type": "object"
+          },
+          {
+            "additionalProperties": false,
+            "properties": {
+              "action": {
+                "enum": [
+                  "select_vehicle",
+                  "optimize_vehicle"
+                ],
+                "type": "string"
+              },
+              "optional": {
+                "type": "boolean"
+              },
+              "reason": {
+                "type": "string"
+              },
+              "type": {
+                "const": "assistant",
+                "type": "string"
+              }
+            },
+            "required": [
+              "type",
+              "action",
+              "reason"
+            ],
+            "type": "object"
+          }
+        ]
+      },
+      "type": "array"
+    },
+    "recommendedData": {
+      "items": {
+        "enum": [
+          "vehicle",
+          "accessible_vehicle_id",
+          "baseline_setup",
+          "driving_session",
+          "vehicle_build_state",
+          "vehicle_logs",
+          "structured_vehicle_modifications"
+        ],
+        "type": "string"
+      },
+      "type": "array",
+      "uniqueItems": true
+    },
+    "requestedVehicleId": {
+      "type": "string"
+    },
+    "stage": {
+      "enum": [
+        "empty_garage",
+        "select_vehicle",
+        "vehicle_selected",
+        "vehicle_created",
+        "collecting_baseline_data",
+        "ready_to_optimize"
+      ],
+      "type": "string"
+    },
+    "vehicleId": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "goal",
+    "stage",
+    "missingData",
+    "recommendedData",
+    "nextActions"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / logs

Added value: +{
+  "items": {
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / message
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / modifications

Added value: +{
+  "items": {
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / outcome

Added value: +{
+  "description": "Optional domain outcome for an otherwise successful read.",
+  "enum": [
+    "no_vehicles",
+    "vehicle_not_found",
+    "vehicle_selection_required",
+    "no_data"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / requestedVehicleId
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / snapshots

Added value: +{
+  "items": {
+    "type": "object"
+  },
+  "type": "array"
+}

changedOutput schema / properties / status / description

Previous value: -"Result status such as ok, created, updated, sent, auth_required, or confirmation_required."New value: +"Stable result status such as ok, created, updated, sent, auth_required, or confirmation_required."

First observedOct 18, 2026

TDQS

B3.2/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The word 'accessible' hints that tracks outside the user's access scope won't be returned, which is genuine added context, but there is no mention of error behavior when the track is missing or inaccessible.

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?

A single short sentence with no filler, and the scope word 'accessible' is front-loaded. It is efficient, though the brevity borders on under-specification rather than polish.

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?

For a single-parameter read tool with an output schema and full annotation coverage, the essentials are present. Still, the agent gets no help on the trackId format or on what 'accessible' practically excludes, which matters for a lookup-by-id tool.

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?

There is one parameter, trackId, and schema description coverage is 0%, so the schema tells the agent only that a string is required. The description doesn't say what a trackId looks like or where to obtain one, leaving the gap unfilled.

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?

States a specific verb ('Read') and resource ('custom track') and the singular 'one' signals retrieval of a single track rather than a listing, which implicitly separates it from list_custom_tracks. It stops short of naming that sibling explicitly.

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

Usage Guidelines3/5

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

'Read one accessible custom track' implies the caller already has a track identifier, but there is no explicit guidance on when to use this versus list_custom_tracks or update_custom_track, and no preconditions are spelled out.

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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