plugin: add Creator Studio workflow skills

.agents/plugins/marketplace.json

@@ -41,6 +41,18 @@
       },
       "category": "Developer Tools"
     },
+    {
+      "name": "apple-creator-studio-skills",
+      "source": {
+        "source": "local",
+        "path": "./plugins/apple-creator-studio-skills"
+      },
+      "policy": {
+        "installation": "AVAILABLE",
+        "authentication": "ON_INSTALL"
+      },
+      "category": "Developer Tools"
+    },
     {
       "name": "cardhop-app",
       "source": {

README.md

@@ -84,6 +84,7 @@ Currently available from the catalog:
 
 - `agent-portability-skills`
 - `android-dev-skills`
+- `apple-creator-studio-skills`
 - `apple-dev-skills`
 - `cardhop-app`
 - `cloud-deployment-skills`
@@ -112,6 +113,7 @@ Current Socket catalog shape:
 
 - `agent-portability-skills`: maintainer skills plus a source-bundled guidance-sync custom-agent definition for Socket-owned agent skill portability, Codex plugin surfaces, and host adapter guidance
 - `android-dev-skills`: Android, Kotlin, Java, Gradle, Android Gradle Plugin, Compose/XML UI, testing, lint, emulator-aware validation handoff, and release-readiness workflow guidance
+- `apple-creator-studio-skills`: source-preserving Final Cut Pro editing, Motion template, Compressor delivery, Logic Pro production, MainStage concert, and GarageBand project workflows with local Help Viewer discovery, explicit Computer Use safeguards, and artifact or rehearsal verification
 - `apple-dev-skills`: Apple, Swift, Core Image and Image I/O, Vision and Core ML recognition, AVFoundation camera and depth capture, ARKit spatial sensing, VideoToolbox and Core Video codecs, PhotosUI and PhotoKit, AVFAudio, Core Media, Core Audio, SwiftUI, AppKit, Xcode, Safari, OpenAPI, and DocC workflows, plus the source-bundled `swift-steward` custom-agent definition with its own roadmap
 - `cardhop-app`: mixed skill plus bundled MCP server for Cardhop.app contact workflows
 - `cloud-deployment-skills`: cloud provider deployment routing, official provider plugin selection, credential and mutation boundary checks, and AWS handoff to the official AWS Agent Toolkit rather than duplicated AWS MCP, CLI, or SAM setup

ROADMAP.md

@@ -25,6 +25,7 @@
 - [Milestone 22: Network Protocol Skills plugin](#milestone-22-network-protocol-skills-plugin)
 - [Milestone 23: Cloud Inference Skills plugin](#milestone-23-cloud-inference-skills-plugin)
 - [Milestone 24: Apple system integration, runtime evidence, and distribution workflows](#milestone-24-apple-system-integration-runtime-evidence-and-distribution-workflows)
+- [Milestone 25: Apple Creator Studio operator workflows](#milestone-25-apple-creator-studio-operator-workflows)
 - [Small Tickets](#small-tickets)
 - [Backlog Candidates](#backlog-candidates)
 - [History](#history)
@@ -63,6 +64,7 @@
 - Milestone 22: Network Protocol Skills plugin - Completed
 - Milestone 23: Cloud Inference Skills plugin - Completed
 - Milestone 24: Apple system integration, runtime evidence, and distribution workflows - Planned
+- Milestone 25: Apple Creator Studio operator workflows - Planned
 
 ## Milestone 5: SwiftASB skills plugin
 
@@ -769,6 +771,7 @@ Planned
 - [ ] Add `apple-dev-skills:swiftui-performance-audit` for code-first diagnosis of invalidation fan-out, unstable identity, heavy body work, layout churn, image cost, and broad animation. Require a clear distinction between suspected code smells and trace-backed evidence, then hand Instruments and `xctrace` capture to `xcode-testing-workflow` or `swift-package-testing-workflow`.
 - [ ] Add `apple-dev-skills:ios-runtime-forensics-workflow` with explicit `performance-trace` and `memory-graph` modes for simulator ETTrace/symbolication and memgraph/leak ownership evidence. Keep it focused on reproducible before/after runtime proof, and route normal simulator build, launch, UI driving, and logs through `xcode-build-run-workflow`.
 - [ ] Add `apple-dev-skills:macos-distribution-workflow` for exported-artifact inspection, signing identities, entitlements, hardened runtime, nested-code signatures, Gatekeeper assessment, notarization readiness/failure classification, stapling, and release-only validation. Keep developer-account provisioning, certificate/profile creation, and Xcode project signing changes with `apple-developer-provisioning-workflow` and `xcode-build-run-workflow`.
+- [ ] Add `apple-dev-skills:tips-helpviewer-workflow` for consistent local discovery of user guides for installed Apple apps. Use the `com.apple.helpviewer` Tips catalog as the primary UI target rather than the empty `com.apple.tips` shell observed on this Mac; route exact app/version help searches through the catalog, verify the opened guide matches the installed app, and keep official in-app Help, Xcode-local docs, Dash, and vendor documentation as the authoritative sources when the catalog is unavailable or incomplete.
 - [ ] Add skill-local references, deterministic validation expectations, handoff contracts, and targeted tests for all five workflows. Update Apple Dev Skills inventory, root documentation, and marketplace metadata only if the exported skill surface changes.
 - [ ] After the five workflows are implemented and validated, explore the installed iOS Simulator browser and SwiftUI hot-reload surface with Gale in a dedicated research pass. Decide together whether it belongs as a Socket workflow, a documented external-tool handoff, or no durable Socket addition; do not bundle or install browser/runtime tooling before that decision.
 
@@ -779,6 +782,39 @@ Planned
 - [ ] The new skills pass their targeted tests, the Apple Dev Skills validation suite, shared-snippet checks, repository-doc validation, and root Socket metadata validation.
 - [ ] The simulator-browser and hot-reload investigation remains an explicit post-implementation conversation with Gale rather than an assumed dependency or unreviewed bundled runtime.
 
+## Milestone 25: Apple Creator Studio operator workflows
+
+### Status
+
+Planned
+
+### Scope
+
+- [x] Add a dedicated `apple-creator-studio-skills` child plugin for safe, human-readable, Computer Use-aware workflows in Apple’s creative applications. Keep it separate from `apple-dev-skills`, which owns Apple framework, Swift, Xcode, and media-code work.
+- [x] Treat this as a durable guidance plugin, not an app-control daemon or macro runner. Do not bundle undocumented automation, a media-processing runtime, machine-local app paths, a local service, or copied Apple help content.
+- [ ] Ship Creator Studio coverage in focused skills: Final Cut Pro, Motion, Compressor, Logic Pro, MainStage, and Pixelmator Pro. Treat GarageBand as a companion skill because it is not currently a Creator Studio subscription app. Final Cut Pro and Motion are complete; Pixelmator Pro remains.
+- [ ] Keep Acorn and RetroBatch outside this plugin. Evaluate a future independent `mac-image-workflows` plugin only after their common operator workflows, ownership boundaries, and validation fixtures are concrete.
+
+### Tickets
+
+- [x] Use [`docs/maintainers/apple-creator-studio-skills-plugin-plan.md`](./docs/maintainers/apple-creator-studio-skills-plugin-plan.md) as the implementation source of truth.
+- [x] Implement the first Creator Studio slice: `compressor-workflow`, `logic-pro-workflow`, and `mainstage-workflow`, with official-help research, Computer Use safety checkpoints, reusable fixture contracts, and focused skill validation.
+- [x] Decide that the three validated initial-slice skills justify the child plugin and marketplace entry.
+- [x] Implement Final Cut Pro and Motion after Compressor handoff/relink/export contracts were proven in controlled disposable fixtures. Keep library, source-project, template-publication, and delivery confirmation boundaries explicit.
+- [x] Require MainStage’s initial implementation to include explicit live-performance safety, audio/MIDI device preflight, and no-surprise-change controls.
+- [ ] Implement Pixelmator Pro after Mac/iPad scope, source-layer preservation, and cross-app image handoff requirements are tested.
+- [x] Add `garageband-workflow` as a companion workflow after Logic Pro. Keep its project/import/export handoffs explicit and do not imply GarageBand is included in Apple Creator Studio.
+- [ ] Publish `mac-image-workflows` only if Acorn and RetroBatch share enough durable asset-preparation contracts to earn a common owner without absorbing Pixelmator Pro or generic image-code workflows.
+- [ ] Investigate a `tips-app-workflow` skill after the first Creator Studio skills ship. Verify whether macOS Tips exposes current, task-specific content for Creator Studio and other Apple apps through an accessible, stable Computer Use surface; compare it against in-app Help and official user guides, preserve Tips as an optional discovery aid rather than an authoritative documentation source, and do not add a plugin or skill until a real fixture proves its value.
+- [x] Update root README, marketplace metadata, plugin metadata, and validation now that the installable plugin surface has shipped. Add active-skill inventory tests only when a Socket-level inventory assertion becomes necessary.
+
+### Exit Criteria
+
+- [x] Every shipped skill has one concrete operator domain, authoritative Apple or vendor documentation anchors, a readable human path, and a Computer Use execution contract.
+- [x] Every write or destructive UI action has a visible confirmation, output path, source-preservation rule, and post-action verification requirement.
+- [x] Compressor, Logic Pro, and MainStage have been forward-tested against disposable, version-recorded fixtures before broader app coverage ships.
+- [x] The plugin neither duplicates Apple Dev Skills framework guidance nor makes unsafe claims about unattended creative-app automation.
+
 ## Small Tickets
 
 - [ ] Record issue-sized fixes, TODO/FIXME imports, and cleanup work that is too small or too unplanned for a milestone.