Premiere Pro MCP Server

Get Sequence Count

get_sequence_count

Read-onlyIdempotent

Count the sequences in the current Premiere Pro project to determine the total number of timeline sequences present.

Instructions

Get the total number of sequences in the project.

Input Schema

Name	Required	Description	Default
`expected_cep_target`	No	Optional reviewed CEP sequence/clip identity and exact tick ranges. Checked before every generated command; UXP refuses this CEP-only guard.
`expected_project_path`	No	Optional absolute saved-project path. Every generated CEP command refuses before its body when the active project differs or is unsaved. UXP commands refuse this CEP-only guard; local-only tools do not inspect Premiere. Omit to keep existing behavior.

Output Schema

Name	Required	Description
`ok`	Yes	Whether the tool completed successfully.
`data`	No	Tool-specific result data when ok is true; on failure, diagnostic detail when the tool provides it.
`tool`	Yes	The registered MCP tool name.
`error`	No	Failure detail when ok is false.
`receipt`	No	Versioned common mutation receipt; success never implies rendered verification.
`idempotency`	No	Present when idempotency_key deduplicated this call: replayed is true when the original outcome was returned instead of running again.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedv1.25.0Oct 24, 2026

addedOutput schema / properties / idempotency

Added value: +{
+  "additionalProperties": true,
+  "description": "Present when idempotency_key deduplicated this call: replayed is true when the original outcome was returned instead of running again.",
+  "type": "object"
+}

Changed3 schema fields changedv1.24.0Oct 12, 2026

addedInput schema / additionalProperties
```
Added value: +false
```

addedInput schema / properties

Added value: +{
+  "expected_cep_target": {
+    "additionalProperties": false,
+    "anyOf": [
+      {
+        "required": [
+          "sequence_id"
+        ]
+      },
+      {
+        "required": [
+          "source_item"
+        ]
+      }
+    ],
+    "description": "Optional reviewed CEP sequence/clip identity and exact tick ranges. Checked before every generated command; UXP refuses this CEP-only guard.",
+    "properties": {
+      "backend": {
+        "const": "cep",
+        "description": "Backend namespace for these IDs.",
+        "type": "string"
+      },
+      "clip": {
+        "additionalProperties": false,
+        "description": "Optional exact reviewed timeline clip.",
+        "properties": {
+          "effect": {
+            "additionalProperties": false,
+            "description": "Reviewed effect and parameter identity checked before mutation.",
+            "properties": {
+              "display_name": {
+                "description": "Optional exact host display name.",
+                "maxLength": 512,
+                "minLength": 1,
+                "type": "string"
+              },
+              "match_name": {
+                "description": "Effect match name from host inspection.",
+                "maxLength": 512,
+                "minLength": 1,
+                "type": "string"
+              },
+              "parameter_index": {
+                "description": "Inspected zero-based parameter index.",
+                "maximum": 255,
+                "minimum": 0,
+                "type": "integer"
+              },
+              "parameter_name": {
+                "description": "Exact inspected parameter name.",
+                "maxLength": 512,
+                "minLength": 1,
+                "type": "string"
+              }
+            },
+            "required": [
+              "match_name",
+              "parameter_index",
+              "parameter_name"
+            ],
+            "type": "object"
+          },
+          "end_ticks": {
+            "description": "Exact expected exclusive timeline end ticks.",
+            "pattern": "^-?\\d{1,30}$",
+            "type": "string"
+          },
+          "in_ticks": {
+            "description": "Exact expected source In ticks.",
+            "pattern": "^-?\\d{1,30}$",
+            "type": "string"
+          },
+          "node_id": {
+            "description": "Stable CEP node ID.",
+            "maxLength": 512,
+            "minLength": 1,
+            "type": "string"
+          },
+          "out_ticks": {
+            "description": "Exact expected exclusive source Out ticks.",
+            "pattern": "^-?\\d{1,30}$",
+            "type": "string"
+          },
+          "project_item_id": {
+            "description": "Expected source project-item node ID.",
+            "maxLength": 512,
+            "minLength": 1,
+            "type": "string"
+          },
+          "start_ticks": {
+            "description": "Exact expected timeline start ticks.",
+            "pattern": "^-?\\d{1,30}$",
+            "type": "string"
+          },
+          "track_index": {
+            "description": "Expected zero-based track index; identity still checked.",
+            "maximum": 255,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "track_type": {
+            "description": "Expected media track group.",
+            "enum": [
+              "video",
+              "audio"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "node_id",
+          "track_type",
+          "track_index"
+        ],
+        "type": "object"
+      },
+      "project_document_id": {
+        "description": "Exact Premiere project document ID observed during review.",
+        "maxLength": 512,
+        "minLength": 1,
+        "type": "string"
+      },
+      "sequence_id": {
+        "description": "Stable expected active sequence ID.",
+        "maxLength": 512,
+        "minLength": 1,
+        "type": "string"
+      },
+      "source_item": {
+        "additionalProperties": false,
+        "description": "Reviewed source identity for a source-only operation.",
+        "properties": {
+          "media_path": {
+            "description": "Optional exact source-media path.",
+            "maxLength": 4096,
+            "minLength": 1,
+            "type": "string"
+          },
+          "node_id": {
+            "description": "Exact project-item node ID.",
+            "maxLength": 512,
+            "minLength": 1,
+            "type": "string"
+          }
+        },
+        "required": [
+          "node_id"
+        ],
+        "type": "object"
+      }
+    },
+    "required": [
+      "backend"
+    ],
+    "type": "object"
+  },
+  "expected_project_path": {
+    "description": "Optional absolute saved-project path. Every generated CEP command refuses before its body when the active project differs or is unsaved. UXP commands refuse this CEP-only guard; local-only tools do not inspect Premiere. Omit to keep existing behavior.",
+    "maxLength": 4096,
+    "minLength": 1,
+    "type": "string"
+  }
+}

addedOutput schema / properties / receipt

Added value: +{
+  "additionalProperties": true,
+  "description": "Versioned common mutation receipt; success never implies rendered verification.",
+  "type": "object"
+}

Changed1 schema field changedv1.18.6Sep 30, 2026

changedOutput schema / properties / data / description

Previous value: -"Tool-specific result data when ok is true."New value: +"Tool-specific result data when ok is true; on failure, diagnostic detail when the tool provides it."

Changed1 schema field changedv1.14.9Sep 8, 2026
- removedInput schema / properties
```
Removed value: -{}
```

Changed2 schema fields changedv1.14.4Aug 29, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "additionalProperties": false,
+  "properties": {
+    "data": {
+      "description": "Tool-specific result data when ok is true."
+    },
+    "error": {
+      "description": "Failure detail when ok is false.",
+      "type": "string"
+    },
+    "ok": {
+      "description": "Whether the tool completed successfully.",
+      "type": "boolean"
+    },
+    "tool": {
+      "description": "The registered MCP tool name.",
+      "minLength": 1,
+      "type": "string"
+    }
+  },
+  "required": [
+    "ok",
+    "tool"
+  ],
+  "type": "object"
+}

First observedv1.1.1May 28, 2026

TDQS

B3.2/5.0

Behavior2/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true and destructiveHint=false, so the safety profile is covered. The description adds nothing beyond them: no statement about which project is inspected, whether nested/binned sequences are counted, or how the guard parameters affect behavior. With an output schema present, some gaps are tolerable, but there is zero added behavioral context.

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 front-loaded sentence with no filler. It is appropriately sized, though it is thin enough that it mostly restates the tool name rather than expanding on it.

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 read-only count with annotations and an output schema, the description covers the core purpose. However it leaves unresolved whether "the project" means the active project, whether all sequences (including bins) are counted, and what the guard parameters protect — points the schema alone doesn't fully answer.

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%, so expected_cep_target and expected_project_path are fully documented in the schema, giving the baseline 3. The description does not mention either guard parameter, but since the schema does the work, no penalty applies.

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 and resource ("Get the total number of sequences") and the scope ("in the project"), so an agent can tell it apart from list_sequences, which returns items rather than a count. It doesn't explicitly name that sibling, but the count-vs-list distinction is clear from the wording.

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?

Usage is implied by the "total number" framing — call this when only a count is needed — but the description never says when to prefer it over list_sequences or get_project_info, nor any prerequisites. Adequate for a trivial read, but no explicit routing.

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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