feat: add EEZ Studio CLI harness (#334)

* feat: add EEZ Studio CLI harness

* Fix EEZ Studio REPL and backend tests

.gitignore

@@ -100,6 +100,7 @@
 !/3MF/
 !/calibre/
 !/rekordbox/
+!/eez-studio/
 !/live2d/
 !/tigris/
 !/cc-switch/
@@ -211,6 +212,8 @@
 /calibre/.*
 /rekordbox/*
 /rekordbox/.*
+/eez-studio/*
+/eez-studio/.*
 /live2d/*
 /live2d/.*
 /tigris/*
@@ -285,6 +288,7 @@
 !/mailchimp/agent-harness/
 !/live2d/agent-harness/
 !/rekordbox/agent-harness/
+!/eez-studio/agent-harness/
 !/tigris/agent-harness/
 !/cc-switch/agent-harness/
 !/siyuan/agent-harness/

README.md

@@ -1166,6 +1166,13 @@ Each application received complete, production-ready CLI interfaces — not demo
 <td align="center">✅ 138</td>
 </tr>
 <tr>
+<td align="center"><strong><a href="eez-studio/agent-harness/">EEZ Studio</a></strong></td>
+<td>Embedded UI / Instrument Automation</td>
+<td><code>cli-anything-eez-studio</code></td>
+<td>.eez-project JSON + EEZ Studio Node backend</td>
+<td align="center">✅ <a href="eez-studio/agent-harness/">New</a></td>
+</tr>
+<tr>
 <td align="center"><strong>⛓️ ETH2 QuickStart</strong></td>
 <td>DevOps / Ethereum</td>
 <td><code>cli-anything-eth2-quickstart</code></td>
@@ -1441,6 +1448,7 @@ cli-anything/
 ├── 📞 zoom/agent-harness/               # Zoom CLI (22 tests)
 ├── 🎵 musescore/agent-harness/          # MuseScore CLI (56 tests)
 ├── 📐 drawio/agent-harness/             # Draw.io CLI (138 tests)
+├── 🧪 eez-studio/agent-harness/         # EEZ Studio CLI (project, LVGL, SCPI automation)
 ├── ⛓️ eth2-quickstart/agent-harness/    # ETH2 QuickStart CLI (18 unit, 3 e2e skipped)
 ├── 🧜 mermaid/agent-harness/            # Mermaid Live Editor CLI (10 tests)
 ├── ✨ anygen/agent-harness/             # AnyGen CLI (50 tests)

eez-studio/agent-harness/EEZ_STUDIO.md

@@ -0,0 +1,61 @@
+# EEZ Studio CLI-Anything Harness
+
+## Target
+
+EEZ Studio is an Electron/Node application for embedded UI projects, LVGL code generation, SCPI instrument models, and flow-based automation. The authoritative upstream source is `https://github.com/eez-open/studio`.
+
+## Native Surfaces
+
+- Project files are JSON documents with the `.eez-project` extension.
+- LVGL projects store display metadata under `settings.general`, build configuration under `settings.build`, screens under `userPages`, widgets inside page `components`, and SCPI command models under `scpi`.
+- EEZ Studio source exports build functions in `packages/project-editor/build/build.ts` and LVGL simulator support in `packages/project-editor/lvgl/docker-build/docker-build-lib.ts`.
+- The harness uses native EEZ marker templates such as `//${eez-studio LVGL_SCREENS_DEF}` in `settings.build.files`.
+
+## Harness Architecture
+
+```text
+eez-studio/agent-harness/
+├── setup.py
+└── cli_anything/eez_studio/
+    ├── eez_studio_cli.py
+    ├── core/
+    │   ├── project.py
+    │   ├── scpi.py
+    │   ├── session.py
+    │   └── export.py
+    ├── utils/
+    │   ├── eez_studio_backend.py
+    │   └── repl_skin.py
+    └── tests/
+        ├── test_core.py
+        ├── test_full_e2e.py
+        └── TEST.md
+```
+
+## Backend Rules
+
+Unit commands manipulate `.eez-project` JSON directly and require no EEZ Studio install. Backend commands require the real EEZ Studio source tree:
+
+```bash
+git clone https://github.com/eez-open/studio.git
+cd studio
+npm install
+npm run build
+export EEZ_STUDIO_SOURCE=/absolute/path/to/studio
+```
+
+`lvgl backend-inspect` invokes the built upstream `docker-build-lib.js` to parse project metadata. `lvgl simulator-build` uses the same upstream library plus Docker to build and verify the LVGL simulator artifacts (`index.html`, `index.js`, `index.wasm`).
+
+If a future EEZ Studio release exposes a documented headless code-generation command, set `EEZ_STUDIO_BUILD_COMMAND` and run `lvgl build-files`. The harness does not synthesize EEZ exports in Python.
+
+## Command Groups
+
+- `project`: create, open, save, validate, inspect, set build settings, list pages/widgets.
+- `lvgl`: add pages, labels, buttons, prepare build directories, invoke real backend inspect/build.
+- `scpi`: add/list subsystems, commands, and command parameters.
+- `backend`: report EEZ Studio source/build availability.
+- `session`: status, undo, redo, and saved session metadata.
+
+## Testing
+
+Unit tests cover native project JSON operations and subprocess JSON output without the backend. The default E2E suite verifies backend status and the unavailable-backend error path; live EEZ Studio backend inspection is opt-in with `EEZ_STUDIO_RUN_LIVE_BACKEND=1` and a built `EEZ_STUDIO_SOURCE`.

eez-studio/agent-harness/cli_anything/eez_studio/README.md

@@ -0,0 +1,77 @@
+# cli-anything-eez-studio
+
+CLI harness for **EEZ Studio** project, LVGL UI, and SCPI workflows.
+
+The CLI edits native `.eez-project` JSON files and calls the real EEZ Studio source backend for build/export operations when configured.
+
+## Prerequisites
+
+- Python 3.10+
+- Node.js for EEZ Studio backend commands
+- EEZ Studio source tree for real backend export:
+
+```bash
+git clone https://github.com/eez-open/studio.git
+cd studio
+npm install
+npm run build
+export EEZ_STUDIO_SOURCE=/absolute/path/to/studio
+```
+
+Full LVGL simulator builds also require Docker.
+
+## Installation
+
+```bash
+cd eez-studio/agent-harness
+pip install -e .
+```
+
+## Usage
+
+```bash
+# Start the REPL
+cli-anything-eez-studio
+
+# Create a native EEZ Studio LVGL project
+cli-anything-eez-studio --json project new -o app.eez-project --name TestPanel
+
+# Add LVGL widgets and save automatically
+cli-anything-eez-studio --project app.eez-project lvgl add-label --text "Ready"
+cli-anything-eez-studio --project app.eez-project lvgl add-button --text "Run"
+
+# Add SCPI command metadata
+cli-anything-eez-studio --project app.eez-project scpi subsystem-add SOURCE
+cli-anything-eez-studio --project app.eez-project scpi command-add SOURCE :VOLTage?
+
+# Inspect through the real EEZ Studio backend
+cli-anything-eez-studio --json --project app.eez-project lvgl backend-inspect
+```
+
+## Command Reference
+
+| Group | Commands |
+| --- | --- |
+| `project` | `new`, `open`, `save`, `info`, `validate`, `pages`, `widgets`, `set`, `set-destination`, `add-build-file` |
+| `lvgl` | `add-page`, `add-label`, `add-button`, `ensure-destination`, `backend-inspect`, `build-files`, `simulator-build`, `verify-simulator` |
+| `scpi` | `subsystem-list`, `subsystem-add`, `command-list`, `command-add`, `parameter-add` |
+| `backend` | `status` |
+| `session` | `status`, `undo`, `redo`, `save-state`, `list` |
+
+## JSON Output
+
+Every command supports `--json` at the root:
+
+```bash
+cli-anything-eez-studio --json --project app.eez-project project info
+```
+
+## Testing
+
+```bash
+cd eez-studio/agent-harness
+python3 -m pytest cli_anything/eez_studio/tests/test_core.py -v
+python3 -m pytest cli_anything/eez_studio/tests/test_full_e2e.py -v
+```
+
+The default E2E suite does not require a real EEZ Studio backend; it verifies backend status and the structured unavailable-backend error path. To run the live backend inspection test, set `EEZ_STUDIO_RUN_LIVE_BACKEND=1` and `EEZ_STUDIO_SOURCE` to a built EEZ Studio checkout.

eez-studio/agent-harness/cli_anything/eez_studio/__init__.py

@@ -0,0 +1,3 @@
+"""CLI-Anything harness for EEZ Studio."""
+
+__version__ = "0.1.0"

eez-studio/agent-harness/cli_anything/eez_studio/__main__.py

@@ -0,0 +1,5 @@
+from .eez_studio_cli import main
+
+
+if __name__ == "__main__":
+    main()

eez-studio/agent-harness/cli_anything/eez_studio/core/__init__.py

@@ -0,0 +1 @@
+"""Core project/session helpers for cli-anything-eez-studio."""

eez-studio/agent-harness/cli_anything/eez_studio/core/export.py

@@ -0,0 +1,64 @@
+"""Export/build orchestration for EEZ Studio projects."""
+
+from __future__ import annotations
+
+import os
+from pathlib import Path
+from typing import Any
+
+from ..utils import eez_studio_backend
+from . import project as project_mod
+
+
+def inspect_with_backend(project_path: str, source: str | None = None) -> dict[str, Any]:
+    return eez_studio_backend.inspect_project(project_path, source=source)
+
+
+def build_files(project_path: str, timeout: int = 300) -> dict[str, Any]:
+    """Run a real configured EEZ Studio build-files command."""
+    return eez_studio_backend.run_custom_build_command(project_path, timeout=timeout)
+
+
+def simulator_build(
+    project_path: str,
+    output_dir: str,
+    source: str | None = None,
+    repository_name: str = "eez-framework",
+    docker_volume_name: str = "eez-studio-cli-anything",
+    timeout: int = 900,
+) -> dict[str, Any]:
+    return eez_studio_backend.build_full_simulator(
+        project_path=project_path,
+        output_dir=output_dir,
+        source=source,
+        repository_name=repository_name,
+        docker_volume_name=docker_volume_name,
+        timeout=timeout,
+    )
+
+
+def verify_simulator_output(output_dir: str) -> dict[str, Any]:
+    output = Path(output_dir)
+    required = ["index.html", "index.js", "index.wasm"]
+    files: dict[str, dict[str, Any]] = {}
+    for file_name in required:
+        path = output / file_name
+        if not path.is_file():
+            raise RuntimeError(f"missing simulator artifact: {path}")
+        files[file_name] = {"path": str(path), "bytes": path.stat().st_size}
+        if path.stat().st_size <= 0:
+            raise RuntimeError(f"empty simulator artifact: {path}")
+    with open(output / "index.html", "rb") as handle:
+        prefix = handle.read(32)
+    if b"<!DOCTYPE html" not in prefix[:32] and b"<html" not in prefix.lower():
+        raise RuntimeError("index.html does not look like HTML")
+    with open(output / "index.wasm", "rb") as handle:
+        magic = handle.read(4)
+    if magic != b"\x00asm":
+        raise RuntimeError("index.wasm does not have WebAssembly magic bytes")
+    return {"output_dir": os.path.abspath(output_dir), "files": files}
+
+
+def ensure_destination(project_path: str) -> dict[str, Any]:
+    project = project_mod.load_project(project_path)
+    return project_mod.ensure_destination_dir(project_path, project)

eez-studio/agent-harness/cli_anything/eez_studio/core/project.py

@@ -0,0 +1,589 @@
+"""Native .eez-project JSON helpers.
+
+EEZ Studio stores projects as JSON in files ending with ``.eez-project``.
+This module edits that native format directly and keeps the generated shape
+close to the upstream project editor model: settings, build templates, pages,
+LVGL widgets, SCPI subsystems, and optional feature collections.
+"""
+
+from __future__ import annotations
+
+import copy
+import json
+import os
+import re
+import time
+import uuid
+from pathlib import Path
+from typing import Any
+
+
+DEFAULT_LVGL_VERSION = "9.2.2"
+DEFAULT_DESTINATION = "src/ui"
+PROJECT_EXTENSION = ".eez-project"
+
+
+def new_obj_id() -> str:
+    return uuid.uuid4().hex
+
+
+def _locked_save_json(path: str | os.PathLike[str], data: Any, **dump_kwargs: Any) -> None:
+    path = os.fspath(path)
+    os.makedirs(os.path.dirname(os.path.abspath(path)), exist_ok=True)
+    try:
+        handle = open(path, "r+", encoding="utf-8")
+    except FileNotFoundError:
+        handle = open(path, "w", encoding="utf-8")
+    with handle:
+        locked = False
+        try:
+            import fcntl
+
+            fcntl.flock(handle.fileno(), fcntl.LOCK_EX)
+            locked = True
+        except (ImportError, OSError):
+            pass
+        try:
+            handle.seek(0)
+            handle.truncate()
+            json.dump(data, handle, **dump_kwargs)
+            handle.write("\n")
+            handle.flush()
+        finally:
+            if locked:
+                import fcntl
+
+                fcntl.flock(handle.fileno(), fcntl.LOCK_UN)
+
+
+def sanitize_identifier(name: str, fallback: str = "screen") -> str:
+    identifier = re.sub(r"[^0-9a-zA-Z_]+", "_", name.strip()).strip("_").lower()
+    if not identifier:
+        identifier = fallback
+    if identifier[0].isdigit():
+        identifier = f"{fallback}_{identifier}"
+    return identifier
+
+
+def _build_templates() -> list[dict[str, Any]]:
+    """Return conservative EEZ Studio build templates using upstream markers."""
+    return [
+        {
+            "fileName": "ui.h",
+            "description": "Main LVGL UI declarations",
+            "template": "\n".join(
+                [
+                    "#pragma once",
+                    '#include "lvgl/lvgl.h"',
+                    "//${eez-studio LVGL_INCLUDE}",
+                    "//${eez-studio EEZ_FOR_LVGL_CHECK}",
+                    "#ifdef __cplusplus",
+                    'extern "C" {',
+                    "#endif",
+                    "//${eez-studio GUI_ASSETS_DECL}",
+                    "//${eez-studio LVGL_SCREENS_DECL}",
+                    "//${eez-studio LVGL_STYLES_DECL}",
+                    "//${eez-studio LVGL_IMAGES_DECL}",
+                    "//${eez-studio LVGL_FONTS_DECL}",
+                    "//${eez-studio LVGL_ACTIONS_DECL}",
+                    "//${eez-studio LVGL_VARS_DECL}",
+                    "void ui_init(void);",
+                    "void ui_tick(void);",
+                    "#ifdef __cplusplus",
+                    "}",
+                    "#endif",
+                    "",
+                ]
+            ),
+        },
+        {
+            "fileName": "ui.c",
+            "description": "Main LVGL UI definitions",
+            "template": "\n".join(
+                [
+                    '#include "ui.h"',
+                    "",
+                    "//${eez-studio GUI_ASSETS_DEF}",
+                    "//${eez-studio LVGL_STYLES_DEF}",
+                    "//${eez-studio LVGL_IMAGES_DEF}",
+                    "//${eez-studio LVGL_ACTIONS_ARRAY_DEF}",
+                    "//${eez-studio LVGL_NATIVE_VARS_TABLE_DEF}",
+                    "",
+                    "void ui_init(void) {",
+                    "    //${eez-studio LVGL_LOAD_FIRST_SCREEN}",
+                    "}",
+                    "",
+                    "void ui_tick(void) {",
+                    "}",
+                    "",
+                ]
+            ),
+        },
+        {
+            "fileName": "screens.c",
+            "description": "LVGL screen construction",
+            "template": "\n".join(
+                [
+                    '#include "ui.h"',
+                    "",
+                    "//${eez-studio LVGL_SCREENS_DEF}",
+                    "//${eez-studio LVGL_SCREENS_DEF_EXT}",
+                    "",
+                ]
+            ),
+        },
+        {
+            "fileName": "screens.h",
+            "description": "LVGL screen declarations",
+            "template": "\n".join(
+                [
+                    "#pragma once",
+                    '#include "ui.h"',
+                    "",
+                    "//${eez-studio LVGL_SCREENS_DECL}",
+                    "//${eez-studio LVGL_SCREENS_DECL_EXT}",
+                    "",
+                ]
+            ),
+        },
+        {
+            "fileName": "vars.h",
+            "description": "Native LVGL variable declarations",
+            "template": "\n".join(["#pragma once", "//${eez-studio LVGL_VARS_DECL}", ""]),
+        },
+        {
+            "fileName": "actions.h",
+            "description": "LVGL action declarations",
+            "template": "\n".join(["#pragma once", "//${eez-studio LVGL_ACTIONS_DECL}", ""]),
+        },
+    ]
+
+
+def _base_widget(widget_type: str, name: str, **props: Any) -> dict[str, Any]:
+    widget = {
+        "objID": new_obj_id(),
+        "type": widget_type,
+        "name": name,
+        "left": props.pop("x", props.pop("left", 0)),
+        "top": props.pop("y", props.pop("top", 0)),
+        "width": props.pop("width", 120),
+        "height": props.pop("height", 40),
+        "hidden": False,
+        "clickableFlag": True,
+        "checkedFlag": False,
+        "disabledFlag": False,
+        "children": [],
+    }
+    widget.update(props)
+    return widget
+
+
+def _screen_widget(name: str, width: int, height: int) -> dict[str, Any]:
+    return _base_widget(
+        "LVGLScreenWidget",
+        f"{name}_root",
+        left=0,
+        top=0,
+        width=width,
+        height=height,
+        clickableFlag=False,
+        children=[],
+    )
+
+
+def _page(name: str, width: int, height: int, page_id: int) -> dict[str, Any]:
+    identifier = sanitize_identifier(name)
+    return {
+        "objID": new_obj_id(),
+        "name": name,
+        "id": page_id,
+        "identifier": identifier,
+        "description": "",
+        "width": width,
+        "height": height,
+        "components": [_screen_widget(name, width, height)],
+        "connectionLines": [],
+    }
+
+
+def create_project(
+    name: str = "Untitled",
+    display_width: int = 800,
+    display_height: int = 480,
+    lvgl_version: str = DEFAULT_LVGL_VERSION,
+    destination: str = DEFAULT_DESTINATION,
+    flow_support: bool = False,
+) -> dict[str, Any]:
+    if display_width <= 0 or display_height <= 0:
+        raise ValueError("display dimensions must be positive")
+    if not lvgl_version:
+        raise ValueError("lvgl_version is required")
+
+    now = int(time.time())
+    return {
+        "objID": new_obj_id(),
+        "settings": {
+            "objID": new_obj_id(),
+            "general": {
+                "projectName": name,
+                "projectType": "lvgl",
+                "projectVersion": "v3",
+                "lvglVersion": lvgl_version,
+                "flowSupport": bool(flow_support),
+                "displayWidth": display_width,
+                "displayHeight": display_height,
+                "colorBpp": "32",
+                "imports": [],
+                "extensions": [],
+                "masterProject": "",
+            },
+            "build": {
+                "configurations": [],
+                "files": _build_templates(),
+                "destinationFolder": destination,
+                "separateFolderForImagesAndFonts": False,
+                "lvglInclude": "lvgl/lvgl.h",
+                "screensLifetimeSupport": False,
+                "generateSourceCodeForEezFramework": False,
+                "compressFlowDefinition": False,
+                "executionQueueSize": 1000,
+                "expressionEvaluatorStackSize": 20,
+                "imageExportMode": "source",
+                "fontExportMode": "source",
+                "fileSystemPath": "",
+                "useDockerDesktop": True,
+            },
+        },
+        "variables": {"globalVariables": []},
+        "actions": [],
+        "userPages": [_page("Main", display_width, display_height, 1)],
+        "userWidgets": [],
+        "styles": [],
+        "lvglStyles": {"styles": []},
+        "lvglGroups": {
+            "groups": [],
+            "defaultGroupForEncoderInSimulator": "",
+            "defaultGroupForKeyboardInSimulator": "",
+        },
+        "fonts": [],
+        "bitmaps": [],
+        "texts": {"languages": [], "resources": []},
+        "scpi": {"subsystems": [], "enums": []},
+        "instrumentCommands": {"commands": []},
+        "shortcuts": {"shortcuts": []},
+        "micropython": {"code": ""},
+        "extensionDefinitions": [],
+        "changes": {"changes": []},
+        "readme": {"text": ""},
+        "colors": [],
+        "themes": [],
+        "themesVersion": 1,
+        "cliAnything": {
+            "harness": "cli-anything-eez-studio",
+            "createdAt": now,
+            "format": "eez-project-json",
+        },
+    }
+
+
+def load_project(path: str | os.PathLike[str]) -> dict[str, Any]:
+    path = os.fspath(path)
+    if not os.path.isfile(path):
+        raise FileNotFoundError(f"EEZ project file not found: {path}")
+    with open(path, "r", encoding="utf-8") as handle:
+        data = json.load(handle)
+    validate_project(data)
+    return data
+
+
+def save_project(project: dict[str, Any], path: str | os.PathLike[str]) -> dict[str, Any]:
+    validate_project(project)
+    _locked_save_json(path, project, indent=2, sort_keys=False)
+    return {"path": os.path.abspath(os.fspath(path)), "bytes": os.path.getsize(path)}
+
+
+def clone_project(project: dict[str, Any]) -> dict[str, Any]:
+    return copy.deepcopy(project)
+
+
+def validate_project(project: dict[str, Any]) -> list[str]:
+    errors: list[str] = []
+    if not isinstance(project, dict):
+        raise ValueError("EEZ project must be a JSON object")
+    settings = project.get("settings")
+    if not isinstance(settings, dict):
+        errors.append("missing settings object")
+    general = settings.get("general") if isinstance(settings, dict) else None
+    if not isinstance(general, dict):
+        errors.append("missing settings.general object")
+    else:
+        if general.get("projectType") not in {"lvgl", "dashboard", "firmware", "resource"}:
+            errors.append("settings.general.projectType is missing or unsupported")
+        if not general.get("lvglVersion") and general.get("projectType") == "lvgl":
+            errors.append("settings.general.lvglVersion is required for LVGL projects")
+        if int(general.get("displayWidth", 0) or 0) <= 0:
+            errors.append("settings.general.displayWidth must be positive")
+        if int(general.get("displayHeight", 0) or 0) <= 0:
+            errors.append("settings.general.displayHeight must be positive")
+    if not isinstance(project.get("userPages", []), list):
+        errors.append("userPages must be an array")
+    if not isinstance(project.get("scpi", {}), dict):
+        errors.append("scpi must be an object")
+    if errors:
+        raise ValueError("; ".join(errors))
+    return errors
+
+
+def get_general(project: dict[str, Any]) -> dict[str, Any]:
+    return project.setdefault("settings", {}).setdefault("general", {})
+
+
+def get_build(project: dict[str, Any]) -> dict[str, Any]:
+    return project.setdefault("settings", {}).setdefault("build", {})
+
+
+def set_general(project: dict[str, Any], key: str, value: Any) -> dict[str, Any]:
+    allowed = {
+        "projectName",
+        "lvglVersion",
+        "flowSupport",
+        "displayWidth",
+        "displayHeight",
+        "colorBpp",
+    }
+    if key not in allowed:
+        raise ValueError(f"unsupported settings.general key: {key}")
+    if key in {"displayWidth", "displayHeight"}:
+        value = int(value)
+        if value <= 0:
+            raise ValueError(f"{key} must be positive")
+    if key == "flowSupport":
+        value = _coerce_bool(value)
+    get_general(project)[key] = value
+    return project_info(project)
+
+
+def set_build_destination(project: dict[str, Any], destination: str) -> dict[str, Any]:
+    if not destination:
+        raise ValueError("destination must not be empty")
+    get_build(project)["destinationFolder"] = destination.replace("\\", "/")
+    return project_info(project)
+
+
+def add_build_file(
+    project: dict[str, Any],
+    file_name: str,
+    template: str,
+    description: str = "",
+    replace: bool = False,
+) -> dict[str, Any]:
+    if not file_name:
+        raise ValueError("file_name is required")
+    files = get_build(project).setdefault("files", [])
+    existing = next((entry for entry in files if entry.get("fileName") == file_name), None)
+    if existing and not replace:
+        raise ValueError(f"build file already exists: {file_name}")
+    entry = {"fileName": file_name, "description": description, "template": template}
+    if existing:
+        existing.update(entry)
+    else:
+        files.append(entry)
+    return {"fileName": file_name, "count": len(files)}
+
+
+def project_info(project: dict[str, Any]) -> dict[str, Any]:
+    general = get_general(project)
+    build = get_build(project)
+    pages = project.get("userPages") or []
+    widgets = list_widgets(project)
+    scpi = project.get("scpi") or {}
+    subsystems = scpi.get("subsystems") or []
+    command_count = sum(len(s.get("commands") or []) for s in subsystems)
+    return {
+        "project_name": general.get("projectName") or "<unnamed>",
+        "project_type": general.get("projectType"),
+        "project_version": general.get("projectVersion"),
+        "lvgl_version": general.get("lvglVersion"),
+        "flow_support": bool(general.get("flowSupport")),
+        "display": {
+            "width": general.get("displayWidth"),
+            "height": general.get("displayHeight"),
+            "color_bpp": general.get("colorBpp"),
+        },
+        "destination_folder": build.get("destinationFolder"),
+        "build_file_count": len(build.get("files") or []),
+        "page_count": len(pages),
+        "widget_count": len(widgets),
+        "scpi_subsystems": len(subsystems),
+        "scpi_commands": command_count,
+    }
+
+
+def list_pages(project: dict[str, Any]) -> list[dict[str, Any]]:
+    pages = []
+    for index, page in enumerate(project.get("userPages") or []):
+        widgets = _page_widgets(page)
+        pages.append(
+            {
+                "index": index,
+                "id": page.get("id"),
+                "name": page.get("name"),
+                "identifier": page.get("identifier"),
+                "width": page.get("width"),
+                "height": page.get("height"),
+                "widget_count": len(widgets),
+            }
+        )
+    return pages
+
+
+def add_page(project: dict[str, Any], name: str, width: int | None = None, height: int | None = None) -> dict[str, Any]:
+    pages = project.setdefault("userPages", [])
+    general = get_general(project)
+    page = _page(
+        name,
+        int(width or general.get("displayWidth") or 800),
+        int(height or general.get("displayHeight") or 480),
+        len(pages) + 1,
+    )
+    pages.append(page)
+    return {"page": page.get("name"), "index": len(pages) - 1, "id": page.get("id")}
+
+
+def _page_widgets(page: dict[str, Any]) -> list[dict[str, Any]]:
+    widgets: list[dict[str, Any]] = []
+
+    def walk(widget: dict[str, Any], parent: str | None = None) -> None:
+        item = dict(widget)
+        item["_parent"] = parent
+        widgets.append(item)
+        for child in widget.get("children") or []:
+            if isinstance(child, dict):
+                walk(child, widget.get("objID"))
+
+    for component in page.get("components") or []:
+        if isinstance(component, dict):
+            walk(component)
+    return widgets
+
+
+def list_widgets(project: dict[str, Any], page_name: str | None = None) -> list[dict[str, Any]]:
+    rows: list[dict[str, Any]] = []
+    for page in project.get("userPages") or []:
+        if page_name and page.get("name") != page_name:
+            continue
+        for widget in _page_widgets(page):
+            rows.append(
+                {
+                    "page": page.get("name"),
+                    "objID": widget.get("objID"),
+                    "type": widget.get("type"),
+                    "name": widget.get("name"),
+                    "left": widget.get("left"),
+                    "top": widget.get("top"),
+                    "width": widget.get("width"),
+                    "height": widget.get("height"),
+                    "text": widget.get("text"),
+                    "parent": widget.get("_parent"),
+                }
+            )
+    return rows
+
+
+def find_page(project: dict[str, Any], page_name: str) -> dict[str, Any]:
+    for page in project.get("userPages") or []:
+        if page.get("name") == page_name:
+            return page
+    raise ValueError(f"page not found: {page_name}")
+
+
+def _screen_root(page: dict[str, Any]) -> dict[str, Any]:
+    components = page.setdefault("components", [])
+    if not components:
+        components.append(_screen_widget(page.get("name", "Main"), page.get("width", 800), page.get("height", 480)))
+    return components[0]
+
+
+def add_label(
+    project: dict[str, Any],
+    page_name: str,
+    text: str,
+    name: str | None = None,
+    x: int = 20,
+    y: int = 20,
+    width: int = 160,
+    height: int = 32,
+) -> dict[str, Any]:
+    page = find_page(project, page_name)
+    widget = _base_widget(
+        "LVGLLabelWidget",
+        name or sanitize_identifier(text, "label"),
+        x=x,
+        y=y,
+        width=width,
+        height=height,
+        text=text,
+        clickableFlag=False,
+    )
+    _screen_root(page).setdefault("children", []).append(widget)
+    return {"page": page_name, "objID": widget["objID"], "type": widget["type"], "name": widget["name"]}
+
+
+def add_button(
+    project: dict[str, Any],
+    page_name: str,
+    text: str,
+    name: str | None = None,
+    x: int = 20,
+    y: int = 72,
+    width: int = 140,
+    height: int = 48,
+) -> dict[str, Any]:
+    page = find_page(project, page_name)
+    button_name = name or sanitize_identifier(text, "button")
+    label = _base_widget(
+        "LVGLLabelWidget",
+        f"{button_name}_label",
+        x=0,
+        y=0,
+        width=width,
+        height=height,
+        text=text,
+        clickableFlag=False,
+    )
+    button = _base_widget(
+        "LVGLButtonWidget",
+        button_name,
+        x=x,
+        y=y,
+        width=width,
+        height=height,
+        children=[label],
+    )
+    _screen_root(page).setdefault("children", []).append(button)
+    return {"page": page_name, "objID": button["objID"], "type": button["type"], "name": button["name"]}
+
+
+def ensure_destination_dir(project_path: str | os.PathLike[str], project: dict[str, Any]) -> dict[str, Any]:
+    destination = get_build(project).get("destinationFolder") or DEFAULT_DESTINATION
+    absolute = Path(project_path).resolve().parent / destination
+    absolute.mkdir(parents=True, exist_ok=True)
+    return {"destination": str(absolute), "exists": absolute.is_dir()}
+
+
+def _coerce_bool(value: Any) -> bool:
+    if isinstance(value, bool):
+        return value
+    if isinstance(value, str):
+        if value.lower() in {"1", "true", "yes", "on"}:
+            return True
+        if value.lower() in {"0", "false", "no", "off"}:
+            return False
+    return bool(value)
+
+
+def write_template_project(path: str | os.PathLike[str], **kwargs: Any) -> dict[str, Any]:
+    project = create_project(**kwargs)
+    result = save_project(project, path)
+    result.update(project_info(project))
+    return result

eez-studio/agent-harness/cli_anything/eez_studio/core/scpi.py

@@ -0,0 +1,124 @@
+"""SCPI helpers for native EEZ project JSON."""
+
+from __future__ import annotations
+
+from typing import Any
+
+
+def _scpi(project: dict[str, Any]) -> dict[str, Any]:
+    return project.setdefault("scpi", {"subsystems": [], "enums": []})
+
+
+def list_subsystems(project: dict[str, Any]) -> list[dict[str, Any]]:
+    rows = []
+    for subsystem in _scpi(project).setdefault("subsystems", []):
+        rows.append(
+            {
+                "name": subsystem.get("name"),
+                "description": subsystem.get("description", ""),
+                "command_count": len(subsystem.get("commands") or []),
+            }
+        )
+    return rows
+
+
+def add_subsystem(project: dict[str, Any], name: str, description: str = "") -> dict[str, Any]:
+    if not name:
+        raise ValueError("subsystem name is required")
+    subsystems = _scpi(project).setdefault("subsystems", [])
+    if any(item.get("name") == name for item in subsystems):
+        raise ValueError(f"SCPI subsystem already exists: {name}")
+    entry = {"name": name, "description": description, "helpLink": "", "commands": []}
+    subsystems.append(entry)
+    return {"name": name, "command_count": 0}
+
+
+def find_subsystem(project: dict[str, Any], name: str) -> dict[str, Any]:
+    for subsystem in _scpi(project).setdefault("subsystems", []):
+        if subsystem.get("name") == name:
+            return subsystem
+    raise ValueError(f"SCPI subsystem not found: {name}")
+
+
+def list_commands(project: dict[str, Any], subsystem_name: str | None = None) -> list[dict[str, Any]]:
+    rows = []
+    subsystems = _scpi(project).setdefault("subsystems", [])
+    for subsystem in subsystems:
+        if subsystem_name and subsystem.get("name") != subsystem_name:
+            continue
+        for command in subsystem.get("commands") or []:
+            rows.append(
+                {
+                    "subsystem": subsystem.get("name"),
+                    "name": command.get("name"),
+                    "query": str(command.get("name", "")).endswith("?"),
+                    "description": command.get("description", ""),
+                    "parameters": len(command.get("parameters") or []),
+                    "response": command.get("response", {}).get("type", []),
+                }
+            )
+    return rows
+
+
+def add_command(
+    project: dict[str, Any],
+    subsystem_name: str,
+    name: str,
+    description: str = "",
+    response_type: str | None = None,
+) -> dict[str, Any]:
+    if not name:
+        raise ValueError("command name is required")
+    subsystem = find_subsystem(project, subsystem_name)
+    commands = subsystem.setdefault("commands", [])
+    if any(command.get("name") == name for command in commands):
+        raise ValueError(f"SCPI command already exists in {subsystem_name}: {name}")
+    command: dict[str, Any] = {
+        "name": name,
+        "description": description,
+        "helpLink": "",
+        "usedIn": [],
+        "parameters": [],
+        "sendsBackDataBlock": False,
+    }
+    if name.endswith("?"):
+        command["response"] = {
+            "type": [{"type": response_type or "quoted-string"}],
+            "description": description,
+        }
+    else:
+        command["response"] = {}
+    commands.append(command)
+    return {"subsystem": subsystem_name, "name": name, "query": name.endswith("?")}
+
+
+def add_parameter(
+    project: dict[str, Any],
+    subsystem_name: str,
+    command_name: str,
+    name: str,
+    parameter_type: str = "nr1",
+    optional: bool = False,
+    description: str = "",
+) -> dict[str, Any]:
+    subsystem = find_subsystem(project, subsystem_name)
+    for command in subsystem.get("commands") or []:
+        if command.get("name") == command_name:
+            parameters = command.setdefault("parameters", [])
+            if any(parameter.get("name") == name for parameter in parameters):
+                raise ValueError(f"SCPI parameter already exists: {name}")
+            parameters.append(
+                {
+                    "name": name,
+                    "type": [{"type": parameter_type}],
+                    "isOptional": bool(optional),
+                    "description": description,
+                }
+            )
+            return {
+                "subsystem": subsystem_name,
+                "command": command_name,
+                "name": name,
+                "type": parameter_type,
+            }
+    raise ValueError(f"SCPI command not found: {command_name}")

eez-studio/agent-harness/cli_anything/eez_studio/core/session.py

@@ -0,0 +1,118 @@
+"""Session state and undo/redo for EEZ Studio project editing."""
+
+from __future__ import annotations
+
+import json
+import os
+import time
+from pathlib import Path
+from typing import Any
+
+from . import project as project_mod
+
+
+SESSION_DIR = Path.home() / ".eez-studio-cli" / "sessions"
+MAX_UNDO_DEPTH = 50
+
+
+class Session:
+    def __init__(self, session_id: str | None = None):
+        self.session_id = session_id or f"session_{int(time.time())}"
+        self.project_path: str | None = None
+        self.project: dict[str, Any] | None = None
+        self._undo_stack: list[dict[str, Any]] = []
+        self._redo_stack: list[dict[str, Any]] = []
+        self._modified = False
+
+    @property
+    def is_open(self) -> bool:
+        return self.project is not None
+
+    @property
+    def is_modified(self) -> bool:
+        return self._modified
+
+    @property
+    def name(self) -> str:
+        if not self.project:
+            return ""
+        return project_mod.get_general(self.project).get("projectName") or ""
+
+    def set_project(self, project: dict[str, Any], path: str | None = None) -> None:
+        self.project = project
+        self.project_path = os.path.abspath(path) if path else None
+        self._undo_stack.clear()
+        self._redo_stack.clear()
+        self._modified = False
+
+    def open_project(self, path: str) -> None:
+        self.set_project(project_mod.load_project(path), path)
+
+    def save_project(self, path: str | None = None) -> dict[str, Any]:
+        if self.project is None:
+            raise RuntimeError("no project is open")
+        target = path or self.project_path
+        if not target:
+            raise RuntimeError("no save path specified")
+        result = project_mod.save_project(self.project, target)
+        self.project_path = result["path"]
+        self._modified = False
+        return result
+
+    def checkpoint(self) -> None:
+        if self.project is None:
+            raise RuntimeError("no project is open")
+        self._undo_stack.append(project_mod.clone_project(self.project))
+        if len(self._undo_stack) > MAX_UNDO_DEPTH:
+            self._undo_stack.pop(0)
+        self._redo_stack.clear()
+        self._modified = True
+
+    def undo(self) -> bool:
+        if self.project is None or not self._undo_stack:
+            return False
+        self._redo_stack.append(project_mod.clone_project(self.project))
+        self.project = self._undo_stack.pop()
+        self._modified = True
+        return True
+
+    def redo(self) -> bool:
+        if self.project is None or not self._redo_stack:
+            return False
+        self._undo_stack.append(project_mod.clone_project(self.project))
+        self.project = self._redo_stack.pop()
+        self._modified = True
+        return True
+
+    def status(self) -> dict[str, Any]:
+        result: dict[str, Any] = {
+            "session_id": self.session_id,
+            "project_open": self.is_open,
+            "project_path": self.project_path,
+            "modified": self._modified,
+            "undo_available": len(self._undo_stack),
+            "redo_available": len(self._redo_stack),
+        }
+        if self.project is not None:
+            result.update(project_mod.project_info(self.project))
+        return result
+
+    def save_state(self) -> str:
+        SESSION_DIR.mkdir(parents=True, exist_ok=True)
+        state = self.status()
+        state["timestamp"] = time.time()
+        path = SESSION_DIR / f"{self.session_id}.json"
+        project_mod._locked_save_json(path, state, indent=2, sort_keys=True)
+        return str(path)
+
+    @classmethod
+    def list_states(cls) -> list[dict[str, Any]]:
+        SESSION_DIR.mkdir(parents=True, exist_ok=True)
+        states: list[dict[str, Any]] = []
+        for path in SESSION_DIR.glob("*.json"):
+            try:
+                states.append(json.loads(path.read_text(encoding="utf-8")))
+            except (OSError, json.JSONDecodeError):
+                continue
+        states.sort(key=lambda item: item.get("timestamp", 0), reverse=True)
+        return states

eez-studio/agent-harness/cli_anything/eez_studio/eez_studio_cli.py

@@ -0,0 +1,612 @@
+"""cli-anything-eez-studio: CLI harness for EEZ Studio.
+
+The CLI edits native .eez-project JSON and calls the real EEZ Studio source
+backend for build/export workflows when configured.
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import shlex
+import sys
+from typing import Any
+
+import click
+
+from cli_anything.eez_studio import __version__
+from cli_anything.eez_studio.core import export as export_mod
+from cli_anything.eez_studio.core import project as project_mod
+from cli_anything.eez_studio.core import scpi as scpi_mod
+from cli_anything.eez_studio.core.session import Session
+from cli_anything.eez_studio.utils import eez_studio_backend
+from cli_anything.eez_studio.utils.repl_skin import ReplSkin
+
+
+_session: Session | None = None
+_json_output = False
+_repl_mode = False
+
+
+def get_session() -> Session:
+    global _session
+    if _session is None:
+        _session = Session()
+    return _session
+
+
+def _same_project_path(session: Session, project_path: str) -> bool:
+    return session.project_path == os.path.abspath(project_path)
+
+
+def _configure_session(session_id: str | None, project_path: str | None) -> None:
+    global _session
+    if _repl_mode:
+        session = get_session()
+        if session_id and session.session_id != session_id:
+            session.session_id = session_id
+        if project_path and not _same_project_path(session, project_path):
+            session.open_project(project_path)
+        return
+
+    _session = Session(session_id)
+    if project_path:
+        _session.open_project(project_path)
+
+
+def output(data: Any, message: str = "") -> None:
+    if _json_output:
+        click.echo(json.dumps(data, indent=2, default=str))
+        return
+    if message:
+        click.echo(message)
+    _pretty(data)
+
+
+def _pretty(data: Any, indent: int = 0) -> None:
+    prefix = "  " * indent
+    if isinstance(data, dict):
+        for key, value in data.items():
+            if isinstance(value, (dict, list)):
+                click.echo(f"{prefix}{key}:")
+                _pretty(value, indent + 1)
+            else:
+                click.echo(f"{prefix}{key}: {value}")
+    elif isinstance(data, list):
+        for index, item in enumerate(data):
+            if isinstance(item, dict):
+                click.echo(f"{prefix}[{index}]")
+                _pretty(item, indent + 1)
+            else:
+                click.echo(f"{prefix}- {item}")
+    else:
+        click.echo(f"{prefix}{data}")
+
+
+def _emit_error(exc: Exception) -> None:
+    if _json_output:
+        click.echo(
+            json.dumps({"error": str(exc), "type": type(exc).__name__}, indent=2),
+            err=True,
+        )
+    else:
+        click.echo(f"Error: {exc}", err=True)
+
+
+def handle_error(func):
+    def wrapper(*args, **kwargs):
+        try:
+            return func(*args, **kwargs)
+        except (FileNotFoundError, FileExistsError, ValueError, RuntimeError, OSError) as exc:
+            _emit_error(exc)
+            if not _repl_mode:
+                sys.exit(1)
+
+    wrapper.__name__ = func.__name__
+    wrapper.__doc__ = func.__doc__
+    return wrapper
+
+
+def require_project() -> Session:
+    session = get_session()
+    if session.project is None:
+        raise RuntimeError("no project is open; use --project PATH or `project new -o PATH`")
+    return session
+
+
+def _mark_changed(session: Session) -> None:
+    session._modified = True
+
+
+@click.group(invoke_without_command=True)
+@click.option("--json", "json_mode", is_flag=True, help="Output machine-readable JSON.")
+@click.option("--project", "-p", "project_path", default=None, help="Open a .eez-project file.")
+@click.option("--session", "session_id", default=None, help="Session ID to use.")
+@click.option("--dry-run", is_flag=True, help="Do not auto-save modified project files.")
+@click.pass_context
+def cli(ctx: click.Context, json_mode: bool, project_path: str | None, session_id: str | None, dry_run: bool) -> None:
+    """EEZ Studio CLI harness for project, LVGL, and SCPI workflows.
+
+    Run without a subcommand to enter the interactive REPL.
+    """
+    global _json_output
+    _json_output = json_mode
+    _configure_session(session_id, project_path)
+    ctx.ensure_object(dict)
+    ctx.obj["project_path"] = project_path
+    ctx.obj["json"] = json_mode
+    ctx.obj["dry_run"] = dry_run
+
+    @ctx.call_on_close
+    def _auto_save() -> None:
+        if dry_run or _repl_mode:
+            return
+        session = get_session()
+        if session.project is not None and session.is_modified and session.project_path:
+            session.save_project()
+
+    if ctx.invoked_subcommand is None:
+        ctx.invoke(repl, project_path=None)
+
+
+@cli.command()
+@click.option("--project", "-p", "project_path", default=None, help="Project file to open in REPL.")
+@click.pass_context
+def repl(ctx: click.Context, project_path: str | None) -> None:
+    """Start the interactive REPL."""
+    global _repl_mode
+    _repl_mode = True
+    skin = ReplSkin("eez-studio", version=__version__)
+    skin.print_banner()
+
+    session = get_session()
+    if project_path:
+        try:
+            session.open_project(project_path)
+        except Exception as exc:
+            skin.error(str(exc))
+
+    commands = {
+        "project new -o app.eez-project": "Create an LVGL project",
+        "project info": "Show project summary",
+        "project save": "Save current project",
+        "project widgets": "List LVGL widgets",
+        "lvgl add-label --text Hello": "Add a label to a screen",
+        "lvgl add-button --text Run": "Add a button to a screen",
+        "lvgl ensure-destination": "Create the build destination directory",
+        "lvgl backend-inspect": "Inspect through EEZ Studio backend",
+        "lvgl simulator-build out": "Run full LVGL simulator backend",
+        "scpi subsystem-add SOURCE": "Add a SCPI subsystem",
+        "scpi command-add SOURCE :VOLTage?": "Add a SCPI command",
+        "session undo / redo": "Undo or redo project mutations",
+        "backend status": "Check EEZ Studio backend availability",
+        "help": "Show this help",
+        "quit / exit": "Exit",
+    }
+    pt_session = skin.create_prompt_session()
+    while True:
+        try:
+            line = skin.get_input(pt_session, project_name=session.name, modified=session.is_modified)
+        except (EOFError, KeyboardInterrupt):
+            break
+        if not line:
+            continue
+        if line.lower() in {"quit", "exit", "q"}:
+            if session.is_modified:
+                skin.warning("Unsaved changes. Use `project save` before exiting.")
+            break
+        if line.lower() in {"help", "h", "?"}:
+            skin.help(commands)
+            continue
+        try:
+            args = shlex.split(line)
+            if session.project_path and "--project" not in args and "-p" not in args:
+                args = ["--project", session.project_path] + args
+            if ctx.obj and ctx.obj.get("json"):
+                args = ["--json"] + args
+            cli.main(args=args, standalone_mode=False)
+        except SystemExit:
+            pass
+        except Exception as exc:
+            skin.error(str(exc))
+    skin.print_goodbye()
+    _repl_mode = False
+
+
+@cli.group()
+def project() -> None:
+    """Project management and native .eez-project inspection."""
+
+
+@project.command("new")
+@click.option("--name", "-n", default="Untitled", help="Project name.")
+@click.option("--width", type=int, default=800, help="LVGL display width.")
+@click.option("--height", type=int, default=480, help="LVGL display height.")
+@click.option("--lvgl-version", default=project_mod.DEFAULT_LVGL_VERSION, help="LVGL version.")
+@click.option("--destination", default=project_mod.DEFAULT_DESTINATION, help="Build destination folder.")
+@click.option("--flow-support", is_flag=True, help="Enable EEZ Flow support flag.")
+@click.option("--output", "-o", "output_path", required=True, help="Output .eez-project path.")
+@handle_error
+def project_new(
+    name: str,
+    width: int,
+    height: int,
+    lvgl_version: str,
+    destination: str,
+    flow_support: bool,
+    output_path: str,
+) -> None:
+    """Create a new native EEZ Studio LVGL project."""
+    project_data = project_mod.create_project(
+        name=name,
+        display_width=width,
+        display_height=height,
+        lvgl_version=lvgl_version,
+        destination=destination,
+        flow_support=flow_support,
+    )
+    session = get_session()
+    session.set_project(project_data, output_path)
+    result = session.save_project(output_path)
+    result.update(project_mod.project_info(project_data))
+    output(result, f"Created EEZ Studio project: {result['path']}")
+
+
+@project.command("open")
+@click.argument("path")
+@handle_error
+def project_open(path: str) -> None:
+    """Open a .eez-project file."""
+    session = get_session()
+    session.open_project(path)
+    output(session.status(), f"Opened: {path}")
+
+
+@project.command("save")
+@click.argument("path", required=False)
+@handle_error
+def project_save(path: str | None) -> None:
+    """Save the current project."""
+    session = require_project()
+    result = session.save_project(path)
+    output(result, f"Saved: {result['path']}")
+
+
+@project.command("info")
+@handle_error
+def project_info() -> None:
+    """Show project summary."""
+    session = require_project()
+    output(project_mod.project_info(session.project or {}), "Project info:")
+
+
+@project.command("validate")
+@click.argument("path", required=False)
+@handle_error
+def project_validate(path: str | None) -> None:
+    """Validate native EEZ project structure."""
+    data = project_mod.load_project(path) if path else (require_project().project or {})
+    project_mod.validate_project(data)
+    output({"valid": True, **project_mod.project_info(data)}, "Project is valid.")
+
+
+@project.command("pages")
+@handle_error
+def project_pages() -> None:
+    """List LVGL pages/screens."""
+    session = require_project()
+    output(project_mod.list_pages(session.project or {}), "Pages:")
+
+
+@project.command("widgets")
+@click.option("--page", "page_name", default=None, help="Filter by page name.")
+@handle_error
+def project_widgets(page_name: str | None) -> None:
+    """List LVGL widgets."""
+    session = require_project()
+    output(project_mod.list_widgets(session.project or {}, page_name), "Widgets:")
+
+
+@project.command("set")
+@click.argument("key")
+@click.argument("value")
+@handle_error
+def project_set(key: str, value: str) -> None:
+    """Set a supported settings.general key."""
+    session = require_project()
+    session.checkpoint()
+    result = project_mod.set_general(session.project or {}, key, value)
+    output(result, f"Set settings.general.{key}")
+
+
+@project.command("set-destination")
+@click.argument("destination")
+@handle_error
+def project_set_destination(destination: str) -> None:
+    """Set settings.build.destinationFolder."""
+    session = require_project()
+    session.checkpoint()
+    result = project_mod.set_build_destination(session.project or {}, destination)
+    output(result, f"Set build destination: {destination}")
+
+
+@project.command("add-build-file")
+@click.argument("file_name")
+@click.option("--template", "-t", required=True, help="Template text with EEZ Studio markers.")
+@click.option("--description", default="", help="Build file description.")
+@click.option("--replace", is_flag=True, help="Replace an existing build file.")
+@handle_error
+def project_add_build_file(file_name: str, template: str, description: str, replace: bool) -> None:
+    """Add or replace a settings.build.files template."""
+    session = require_project()
+    session.checkpoint()
+    result = project_mod.add_build_file(session.project or {}, file_name, template, description, replace)
+    output(result, f"Updated build file: {file_name}")
+
+
+@cli.group()
+def lvgl() -> None:
+    """LVGL screen/widget and real backend build commands."""
+
+
+@lvgl.command("add-page")
+@click.argument("name")
+@click.option("--width", type=int, default=None, help="Screen width.")
+@click.option("--height", type=int, default=None, help="Screen height.")
+@handle_error
+def lvgl_add_page(name: str, width: int | None, height: int | None) -> None:
+    """Add a LVGL page/screen."""
+    session = require_project()
+    session.checkpoint()
+    result = project_mod.add_page(session.project or {}, name, width, height)
+    output(result, f"Added page: {name}")
+
+
+@lvgl.command("add-label")
+@click.option("--page", "page_name", default="Main", help="Page name.")
+@click.option("--text", required=True, help="Label text.")
+@click.option("--name", default=None, help="Widget name.")
+@click.option("--x", type=int, default=20)
+@click.option("--y", type=int, default=20)
+@click.option("--width", type=int, default=160)
+@click.option("--height", type=int, default=32)
+@handle_error
+def lvgl_add_label(page_name: str, text: str, name: str | None, x: int, y: int, width: int, height: int) -> None:
+    """Add a LVGL label widget."""
+    session = require_project()
+    session.checkpoint()
+    result = project_mod.add_label(session.project or {}, page_name, text, name, x, y, width, height)
+    output(result, f"Added label: {result['name']}")
+
+
+@lvgl.command("add-button")
+@click.option("--page", "page_name", default="Main", help="Page name.")
+@click.option("--text", required=True, help="Button label.")
+@click.option("--name", default=None, help="Widget name.")
+@click.option("--x", type=int, default=20)
+@click.option("--y", type=int, default=72)
+@click.option("--width", type=int, default=140)
+@click.option("--height", type=int, default=48)
+@handle_error
+def lvgl_add_button(page_name: str, text: str, name: str | None, x: int, y: int, width: int, height: int) -> None:
+    """Add a LVGL button widget with child label."""
+    session = require_project()
+    session.checkpoint()
+    result = project_mod.add_button(session.project or {}, page_name, text, name, x, y, width, height)
+    output(result, f"Added button: {result['name']}")
+
+
+@lvgl.command("ensure-destination")
+@handle_error
+def lvgl_ensure_destination() -> None:
+    """Create the build destination directory beside the project."""
+    session = require_project()
+    if not session.project_path:
+        raise RuntimeError("project must be saved before creating destination directory")
+    result = export_mod.ensure_destination(session.project_path)
+    output(result, f"Destination ready: {result['destination']}")
+
+
+@lvgl.command("backend-inspect")
+@click.option("--source", default=None, help="EEZ Studio source tree; defaults to EEZ_STUDIO_SOURCE.")
+@click.option("--path", "project_path", default=None, help="Project path; defaults to open project.")
+@handle_error
+def lvgl_backend_inspect(source: str | None, project_path: str | None) -> None:
+    """Inspect project metadata through EEZ Studio's real Node backend."""
+    session = get_session()
+    path = project_path or session.project_path
+    if not path:
+        raise RuntimeError("project path required")
+    result = export_mod.inspect_with_backend(path, source=source)
+    output(result, "EEZ backend project info:")
+
+
+@lvgl.command("build-files")
+@click.option("--path", "project_path", default=None, help="Project path; defaults to open project.")
+@click.option("--timeout", type=int, default=300)
+@handle_error
+def lvgl_build_files(project_path: str | None, timeout: int) -> None:
+    """Run a configured real EEZ Studio build-files command."""
+    session = get_session()
+    path = project_path or session.project_path
+    if not path:
+        raise RuntimeError("project path required")
+    result = export_mod.build_files(path, timeout=timeout)
+    output(result, "EEZ build command finished:")
+
+
+@lvgl.command("simulator-build")
+@click.argument("output_dir")
+@click.option("--source", default=None, help="EEZ Studio source tree; defaults to EEZ_STUDIO_SOURCE.")
+@click.option("--path", "project_path", default=None, help="Project path; defaults to open project.")
+@click.option("--repository-name", default="eez-framework", help="Repository used by EEZ docker build.")
+@click.option("--docker-volume", default="eez-studio-cli-anything", help="Docker volume name.")
+@click.option("--timeout", type=int, default=900)
+@handle_error
+def lvgl_simulator_build(
+    output_dir: str,
+    source: str | None,
+    project_path: str | None,
+    repository_name: str,
+    docker_volume: str,
+    timeout: int,
+) -> None:
+    """Run EEZ Studio's full LVGL simulator Docker backend."""
+    session = get_session()
+    path = project_path or session.project_path
+    if not path:
+        raise RuntimeError("project path required")
+    result = export_mod.simulator_build(
+        project_path=path,
+        output_dir=output_dir,
+        source=source,
+        repository_name=repository_name,
+        docker_volume_name=docker_volume,
+        timeout=timeout,
+    )
+    result["verification"] = export_mod.verify_simulator_output(output_dir)
+    output(result, f"Simulator built: {os.path.abspath(output_dir)}")
+
+
+@lvgl.command("verify-simulator")
+@click.argument("output_dir")
+@handle_error
+def lvgl_verify_simulator(output_dir: str) -> None:
+    """Verify simulator output artifacts by structure and magic bytes."""
+    result = export_mod.verify_simulator_output(output_dir)
+    output(result, f"Verified simulator output: {result['output_dir']}")
+
+
+@cli.group()
+def scpi() -> None:
+    """SCPI subsystem and command model editing."""
+
+
+@scpi.command("subsystem-list")
+@handle_error
+def scpi_subsystem_list() -> None:
+    """List SCPI subsystems."""
+    session = require_project()
+    output(scpi_mod.list_subsystems(session.project or {}), "SCPI subsystems:")
+
+
+@scpi.command("subsystem-add")
+@click.argument("name")
+@click.option("--description", "-d", default="", help="Subsystem description.")
+@handle_error
+def scpi_subsystem_add(name: str, description: str) -> None:
+    """Add a SCPI subsystem."""
+    session = require_project()
+    session.checkpoint()
+    result = scpi_mod.add_subsystem(session.project or {}, name, description)
+    output(result, f"Added SCPI subsystem: {name}")
+
+
+@scpi.command("command-list")
+@click.option("--subsystem", "-s", default=None, help="Filter by subsystem.")
+@handle_error
+def scpi_command_list(subsystem: str | None) -> None:
+    """List SCPI commands."""
+    session = require_project()
+    output(scpi_mod.list_commands(session.project or {}, subsystem), "SCPI commands:")
+
+
+@scpi.command("command-add")
+@click.argument("subsystem")
+@click.argument("name")
+@click.option("--description", "-d", default="", help="Command description.")
+@click.option("--response-type", default=None, help="Query response type.")
+@handle_error
+def scpi_command_add(subsystem: str, name: str, description: str, response_type: str | None) -> None:
+    """Add a SCPI command to a subsystem."""
+    session = require_project()
+    session.checkpoint()
+    result = scpi_mod.add_command(session.project or {}, subsystem, name, description, response_type)
+    output(result, f"Added SCPI command: {name}")
+
+
+@scpi.command("parameter-add")
+@click.argument("subsystem")
+@click.argument("command")
+@click.argument("name")
+@click.option("--type", "parameter_type", default="nr1", help="SCPI parameter type.")
+@click.option("--optional", is_flag=True, help="Mark parameter optional.")
+@click.option("--description", "-d", default="", help="Parameter description.")
+@handle_error
+def scpi_parameter_add(
+    subsystem: str,
+    command: str,
+    name: str,
+    parameter_type: str,
+    optional: bool,
+    description: str,
+) -> None:
+    """Add a parameter to a SCPI command."""
+    session = require_project()
+    session.checkpoint()
+    result = scpi_mod.add_parameter(session.project or {}, subsystem, command, name, parameter_type, optional, description)
+    output(result, f"Added SCPI parameter: {name}")
+
+
+@cli.group()
+def backend() -> None:
+    """Backend detection and version probes."""
+
+
+@backend.command("status")
+@click.option("--source", default=None, help="EEZ Studio source tree; defaults to EEZ_STUDIO_SOURCE.")
+@handle_error
+def backend_status(source: str | None) -> None:
+    """Show backend availability."""
+    result = eez_studio_backend.backend_status(source)
+    output(result, "Backend status:")
+
+
+@cli.group()
+def session() -> None:
+    """Session management and undo/redo."""
+
+
+@session.command("status")
+@handle_error
+def session_status() -> None:
+    """Show session status."""
+    output(get_session().status(), "Session status:")
+
+
+@session.command("undo")
+@handle_error
+def session_undo() -> None:
+    """Undo the last mutation."""
+    ok = get_session().undo()
+    output({"undone": ok, **get_session().status()}, "Undo" if ok else "Nothing to undo")
+
+
+@session.command("redo")
+@handle_error
+def session_redo() -> None:
+    """Redo the last undone mutation."""
+    ok = get_session().redo()
+    output({"redone": ok, **get_session().status()}, "Redo" if ok else "Nothing to redo")
+
+
+@session.command("save-state")
+@handle_error
+def session_save_state() -> None:
+    """Save session metadata to disk."""
+    path = get_session().save_state()
+    output({"path": path}, f"Saved session state: {path}")
+
+
+@session.command("list")
+@handle_error
+def session_list() -> None:
+    """List saved session metadata."""
+    output(Session.list_states(), "Saved sessions:")
+
+
+main = cli
+
+
+if __name__ == "__main__":
+    main()

eez-studio/agent-harness/cli_anything/eez_studio/skills/SKILL.md

@@ -0,0 +1,59 @@
+---
+name: "cli-anything-eez-studio"
+description: "Use EEZ Studio from the command line: inspect and modify native .eez-project files, edit LVGL screens/widgets, manage SCPI commands, and invoke the real EEZ Studio backend for LVGL builds."
+---
+
+# cli-anything-eez-studio
+
+Use this skill when you need to automate EEZ Studio projects, LVGL UI scaffolding, SCPI instrument command metadata, or backend LVGL simulator builds.
+
+## Install
+
+```bash
+cd eez-studio/agent-harness
+pip install -e .
+```
+
+Backend commands require the real EEZ Studio source tree:
+
+```bash
+git clone https://github.com/eez-open/studio.git
+cd studio
+npm install
+npm run build
+export EEZ_STUDIO_SOURCE=/absolute/path/to/studio
+```
+
+## Core Usage
+
+Always use `--json` for agent-readable output.
+
+```bash
+cli-anything-eez-studio --json project new -o panel.eez-project --name Panel
+cli-anything-eez-studio --json --project panel.eez-project lvgl add-label --text "Ready"
+cli-anything-eez-studio --json --project panel.eez-project lvgl add-button --text "Run"
+cli-anything-eez-studio --json --project panel.eez-project project widgets
+```
+
+## SCPI Commands
+
+```bash
+cli-anything-eez-studio --json --project panel.eez-project scpi subsystem-add SOURCE
+cli-anything-eez-studio --json --project panel.eez-project scpi command-add SOURCE :VOLTage?
+cli-anything-eez-studio --json --project panel.eez-project scpi parameter-add SOURCE :VOLTage? channel --type nr1 --optional
+```
+
+## Backend Commands
+
+```bash
+cli-anything-eez-studio --json backend status
+cli-anything-eez-studio --json --project panel.eez-project lvgl ensure-destination
+cli-anything-eez-studio --json --project panel.eez-project lvgl backend-inspect
+cli-anything-eez-studio --json --project panel.eez-project lvgl simulator-build build/sim
+```
+
+`lvgl backend-inspect` and `lvgl simulator-build` call EEZ Studio's built Node modules. They should fail loudly if the backend is missing.
+
+## State
+
+Use `session undo`, `session redo`, and `session status` during REPL or scripted sessions. One-shot commands with `--project` auto-save project mutations unless `--dry-run` is provided.

eez-studio/agent-harness/cli_anything/eez_studio/tests/TEST.md

@@ -0,0 +1,133 @@
+# EEZ Studio Harness Test Plan
+
+## Test Inventory Plan
+
+- `test_core.py`: 8 unit tests planned.
+- `test_full_e2e.py`: 4 end-to-end tests planned.
+
+## Unit Test Plan
+
+### `core.project`
+
+- Create a native LVGL `.eez-project` JSON document.
+- Validate required EEZ Studio sections: `settings.general`, `settings.build`, `userPages`, `scpi`.
+- Save/load round trip.
+- Mutate general settings and build destination.
+- Add pages and LVGL widgets.
+
+### `core.scpi`
+
+- Add SCPI subsystems, commands, and parameters.
+- Preserve query response metadata for commands ending with `?`.
+
+### `core.session`
+
+- Track undo/redo snapshots across native project mutations.
+
+### CLI JSON
+
+- Use Click/subprocess execution to verify `--json project new` emits machine-readable output and creates a valid project.
+
+## E2E Test Plan
+
+### Native CLI Workflow
+
+- Create a saved `.eez-project`.
+- Add a label, button, SCPI subsystem, and SCPI query command through the installed CLI.
+- Reload and validate JSON structure.
+
+### Backend Status Probe
+
+- Call `backend status --json` to verify the CLI reports backend availability as structured JSON.
+
+### Real Backend Inspect
+
+- Default run: call `lvgl backend-inspect` without `EEZ_STUDIO_SOURCE` and verify the CLI returns a structured unavailable-backend error with setup instructions.
+- Opt-in live run: when `EEZ_STUDIO_RUN_LIVE_BACKEND=1` and `EEZ_STUDIO_SOURCE` points to a built checkout, call `lvgl backend-inspect` through the CLI and verify structured project info from EEZ Studio's built `docker-build-lib.js`.
+
+### Simulator Output Verification
+
+- Validate generated simulator output by checking `index.html`, `index.js`, and WebAssembly magic bytes for `index.wasm`.
+
+## Realistic Workflow Scenarios
+
+**Embedded panel scaffold**
+
+- Simulates: embedded GUI developer scaffolding a panel project.
+- Operations chained: create project, add LVGL widgets, save, validate.
+- Verified: native JSON structure, page/widget counts, output file presence.
+
+**SCPI instrument command model**
+
+- Simulates: test engineer adding a measurable instrument command surface.
+- Operations chained: add subsystem, add query, add parameter when applicable.
+- Verified: subsystem and command arrays match EEZ Studio SCPI model.
+
+**Backend LVGL project inspection**
+
+- Simulates: build automation reading EEZ project settings before a manufacturing/test export.
+- Operations chained: prepare destination directory, verify default unavailable-backend behavior, optionally invoke real EEZ Studio Node backend.
+- Verified: structured unavailable-backend error by default; backend exit code and structured project info from `docker-build-lib.js` when opted in.
+
+## Test Results
+
+Commands run from `eez-studio/agent-harness`:
+
+```bash
+python3 -m json.tool ../../registry.json
+python3 -m compileall cli_anything/eez_studio
+python3 -m pip install -e .
+python3 -m pytest cli_anything/eez_studio/tests/test_core.py -v
+env -u EEZ_STUDIO_SOURCE -u EEZ_STUDIO_RUN_LIVE_BACKEND python3 -m pytest cli_anything/eez_studio/tests/test_full_e2e.py -v
+```
+
+Unit test result:
+
+```text
+cli_anything/eez_studio/tests/test_core.py::test_create_project_has_native_sections PASSED
+cli_anything/eez_studio/tests/test_core.py::test_save_load_round_trip PASSED
+cli_anything/eez_studio/tests/test_core.py::test_set_general_and_destination PASSED
+cli_anything/eez_studio/tests/test_core.py::test_add_page_and_widgets PASSED
+cli_anything/eez_studio/tests/test_core.py::test_scpi_subsystem_command_parameter PASSED
+cli_anything/eez_studio/tests/test_core.py::test_session_undo_redo PASSED
+cli_anything/eez_studio/tests/test_core.py::test_cli_json_project_new PASSED
+cli_anything/eez_studio/tests/test_core.py::test_cli_json_mutation_autosaves PASSED
+cli_anything/eez_studio/tests/test_core.py::test_repl_dispatch_preserves_open_session_mutation_and_undo PASSED
+cli_anything/eez_studio/tests/test_core.py::test_custom_build_command_uses_shlex_for_quoted_args PASSED
+
+10 passed in 0.11s
+```
+
+Full E2E result:
+
+```text
+cli_anything/eez_studio/tests/test_full_e2e.py::TestCLISubprocessE2E::test_help PASSED
+cli_anything/eez_studio/tests/test_full_e2e.py::TestCLISubprocessE2E::test_native_project_scpi_workflow PASSED
+cli_anything/eez_studio/tests/test_full_e2e.py::TestCLISubprocessE2E::test_backend_status_json PASSED
+cli_anything/eez_studio/tests/test_full_e2e.py::TestCLISubprocessE2E::test_backend_inspect_reports_unavailable_without_source PASSED
+cli_anything/eez_studio/tests/test_full_e2e.py::TestCLISubprocessE2E::test_real_backend_inspect_required SKIPPED
+
+4 passed, 1 skipped in 1.12s
+```
+
+Unavailable backend evidence:
+
+```text
+stderr:
+{
+  "error": "EEZ Studio backend is not available.\n\nInstall/build the real target software and point this harness at it:\n  git clone https://github.com/eez-open/studio.git\n  cd studio\n  npm install\n  npm run build\n  export EEZ_STUDIO_SOURCE=/absolute/path/to/studio\n\nFor full LVGL simulator builds, Docker must also be installed and running.\n",
+  "type": "RuntimeError"
+}
+```
+
+## Summary Statistics
+
+- Unit tests: 10 passed, 0 failed.
+- Full E2E tests: 4 passed, 1 skipped by default because live backend inspection is opt-in.
+- Registry JSON validation: passed.
+- Python compile validation: passed.
+- Editable install: passed.
+
+## Coverage Notes
+
+The native `.eez-project` editing path, REPL session reuse, session undo/redo, SCPI model edits, CLI subprocess execution, JSON output, unavailable-backend handling, and quoted custom build command parsing are covered. The real EEZ Studio backend path is implemented as an opt-in E2E gate for environments with `EEZ_STUDIO_RUN_LIVE_BACKEND=1` and a built `EEZ_STUDIO_SOURCE`.

eez-studio/agent-harness/cli_anything/eez_studio/tests/__init__.py

@@ -0,0 +1 @@
+"""Tests for cli-anything-eez-studio."""

eez-studio/agent-harness/cli_anything/eez_studio/tests/test_core.py

@@ -0,0 +1,152 @@
+import json
+from pathlib import Path
+
+from click.testing import CliRunner
+
+from cli_anything.eez_studio import eez_studio_cli
+from cli_anything.eez_studio.core import project as project_mod
+from cli_anything.eez_studio.core import scpi as scpi_mod
+from cli_anything.eez_studio.core.session import Session
+from cli_anything.eez_studio.utils import eez_studio_backend
+from cli_anything.eez_studio.eez_studio_cli import cli
+
+
+def test_create_project_has_native_sections():
+    project = project_mod.create_project(name="Panel", display_width=480, display_height=272)
+    info = project_mod.project_info(project)
+    assert project["settings"]["general"]["projectType"] == "lvgl"
+    assert project["settings"]["general"]["lvglVersion"] == project_mod.DEFAULT_LVGL_VERSION
+    assert project["settings"]["build"]["destinationFolder"] == "src/ui"
+    assert project["userPages"][0]["components"][0]["type"] == "LVGLScreenWidget"
+    assert info["page_count"] == 1
+
+
+def test_save_load_round_trip(tmp_path):
+    path = tmp_path / "panel.eez-project"
+    project = project_mod.create_project(name="RoundTrip")
+    result = project_mod.save_project(project, path)
+    loaded = project_mod.load_project(path)
+    assert result["bytes"] > 0
+    assert loaded["settings"]["general"]["projectName"] == "RoundTrip"
+
+
+def test_set_general_and_destination():
+    project = project_mod.create_project()
+    project_mod.set_general(project, "displayWidth", "1024")
+    project_mod.set_build_destination(project, "firmware/ui")
+    assert project["settings"]["general"]["displayWidth"] == 1024
+    assert project["settings"]["build"]["destinationFolder"] == "firmware/ui"
+
+
+def test_add_page_and_widgets():
+    project = project_mod.create_project()
+    project_mod.add_page(project, "Settings")
+    project_mod.add_label(project, "Settings", "Voltage", name="voltage_label")
+    project_mod.add_button(project, "Settings", "Apply", name="apply_button")
+    widgets = project_mod.list_widgets(project, "Settings")
+    assert len(project_mod.list_pages(project)) == 2
+    assert any(widget["type"] == "LVGLLabelWidget" for widget in widgets)
+    assert any(widget["type"] == "LVGLButtonWidget" for widget in widgets)
+
+
+def test_scpi_subsystem_command_parameter():
+    project = project_mod.create_project()
+    scpi_mod.add_subsystem(project, "SOURCE")
+    scpi_mod.add_command(project, "SOURCE", ":VOLTage?", response_type="nr3")
+    scpi_mod.add_parameter(project, "SOURCE", ":VOLTage?", "channel", "nr1", optional=True)
+    commands = scpi_mod.list_commands(project, "SOURCE")
+    assert commands[0]["query"] is True
+    assert commands[0]["parameters"] == 1
+
+
+def test_session_undo_redo():
+    session = Session("test")
+    session.set_project(project_mod.create_project(), None)
+    session.checkpoint()
+    project_mod.add_label(session.project, "Main", "Ready")
+    assert len(project_mod.list_widgets(session.project)) == 2
+    assert session.undo() is True
+    assert len(project_mod.list_widgets(session.project)) == 1
+    assert session.redo() is True
+    assert len(project_mod.list_widgets(session.project)) == 2
+
+
+def test_cli_json_project_new(tmp_path):
+    path = tmp_path / "cli.eez-project"
+    runner = CliRunner()
+    result = runner.invoke(cli, ["--json", "project", "new", "-o", str(path), "--name", "CLI"])
+    assert result.exit_code == 0, result.output
+    data = json.loads(result.output)
+    assert data["project_name"] == "CLI"
+    assert path.is_file()
+
+
+def test_cli_json_mutation_autosaves(tmp_path):
+    path = tmp_path / "auto.eez-project"
+    runner = CliRunner()
+    result = runner.invoke(cli, ["--json", "project", "new", "-o", str(path)])
+    assert result.exit_code == 0, result.output
+    result = runner.invoke(cli, ["--json", "--project", str(path), "lvgl", "add-label", "--text", "Ready"])
+    assert result.exit_code == 0, result.output
+    loaded = project_mod.load_project(path)
+    assert any(widget["text"] == "Ready" for widget in project_mod.list_widgets(loaded))
+
+
+def test_repl_dispatch_preserves_open_session_mutation_and_undo(tmp_path):
+    path = tmp_path / "repl.eez-project"
+    runner = CliRunner()
+    session = Session("repl-test")
+    eez_studio_cli._session = session
+    eez_studio_cli._repl_mode = True
+    eez_studio_cli._json_output = False
+    try:
+        result = runner.invoke(cli, ["--json", "project", "new", "-o", str(path), "--name", "REPL"])
+        assert result.exit_code == 0, result.output
+        assert eez_studio_cli.get_session() is session
+        assert session.project_path == str(path.resolve())
+
+        result = runner.invoke(cli, ["--json", "--project", str(path), "lvgl", "add-label", "--text", "Unsaved"])
+        assert result.exit_code == 0, result.output
+        assert session.is_modified is True
+        assert any(widget["text"] == "Unsaved" for widget in project_mod.list_widgets(session.project or {}))
+        assert not any(widget.get("text") == "Unsaved" for widget in project_mod.list_widgets(project_mod.load_project(path)))
+
+        result = runner.invoke(cli, ["--json", "--project", str(path), "session", "undo"])
+        assert result.exit_code == 0, result.output
+        data = json.loads(result.output)
+        assert data["undone"] is True
+        assert not any(widget.get("text") == "Unsaved" for widget in project_mod.list_widgets(session.project or {}))
+    finally:
+        eez_studio_cli._session = None
+        eez_studio_cli._repl_mode = False
+        eez_studio_cli._json_output = False
+
+
+def test_custom_build_command_uses_shlex_for_quoted_args(tmp_path, monkeypatch):
+    project_path = tmp_path / "quoted project.eez-project"
+    project_path.write_text("{}", encoding="utf-8")
+    tool_path = tmp_path / "tool with spaces"
+    captured = {}
+
+    class Result:
+        returncode = 0
+        stdout = "ok"
+        stderr = ""
+
+    def fake_run(args, capture_output, text, timeout):
+        captured["args"] = args
+        captured["capture_output"] = capture_output
+        captured["text"] = text
+        captured["timeout"] = timeout
+        return Result()
+
+    monkeypatch.setenv("EEZ_STUDIO_BUILD_COMMAND", f'"{tool_path}" --flag "two words"')
+    monkeypatch.setattr(eez_studio_backend.subprocess, "run", fake_run)
+
+    result = eez_studio_backend.run_custom_build_command(str(project_path), timeout=12)
+
+    assert captured["args"] == [str(tool_path), "--flag", "two words", str(project_path.resolve())]
+    assert captured["capture_output"] is True
+    assert captured["text"] is True
+    assert captured["timeout"] == 12
+    assert result["command"] == captured["args"]

eez-studio/agent-harness/cli_anything/eez_studio/tests/test_full_e2e.py

@@ -0,0 +1,95 @@
+import json
+import os
+import shutil
+import subprocess
+import sys
+from pathlib import Path
+
+import pytest
+
+from cli_anything.eez_studio.core import project as project_mod
+
+
+def _resolve_cli(name):
+    force = os.environ.get("CLI_ANYTHING_FORCE_INSTALLED", "").strip() == "1"
+    path = shutil.which(name)
+    if path:
+        print(f"[_resolve_cli] Using installed command: {path}")
+        return [path]
+    if force:
+        raise RuntimeError(f"{name} not found in PATH. Install with: pip install -e .")
+    module = "cli_anything.eez_studio.eez_studio_cli"
+    print(f"[_resolve_cli] Falling back to: {sys.executable} -m {module}")
+    return [sys.executable, "-m", module]
+
+
+class TestCLISubprocessE2E:
+    CLI_BASE = _resolve_cli("cli-anything-eez-studio")
+
+    def _run(self, args, check=True):
+        result = subprocess.run(self.CLI_BASE + args, capture_output=True, text=True)
+        if check and result.returncode != 0:
+            raise AssertionError(
+                f"command failed: {self.CLI_BASE + args}\nstdout:\n{result.stdout}\nstderr:\n{result.stderr}"
+            )
+        return result
+
+    def test_help(self):
+        result = self._run(["--help"])
+        assert result.returncode == 0
+        assert "EEZ Studio CLI harness" in result.stdout
+
+    def test_native_project_scpi_workflow(self, tmp_path):
+        project_path = tmp_path / "workflow.eez-project"
+        result = self._run(["--json", "project", "new", "-o", str(project_path), "--name", "Workflow"])
+        data = json.loads(result.stdout)
+        assert data["project_name"] == "Workflow"
+        self._run(["--project", str(project_path), "lvgl", "add-label", "--text", "Ready"])
+        self._run(["--project", str(project_path), "lvgl", "add-button", "--text", "Run"])
+        self._run(["--project", str(project_path), "scpi", "subsystem-add", "SOURCE"])
+        self._run(["--project", str(project_path), "scpi", "command-add", "SOURCE", ":VOLTage?"])
+        loaded = project_mod.load_project(project_path)
+        info = project_mod.project_info(loaded)
+        assert info["widget_count"] >= 3
+        assert info["scpi_commands"] == 1
+        print(f"\n  EEZ project: {project_path} ({project_path.stat().st_size:,} bytes)")
+
+    def test_backend_status_json(self):
+        result = self._run(["--json", "backend", "status"])
+        data = json.loads(result.stdout)
+        assert "available" in data
+
+    def test_backend_inspect_reports_unavailable_without_source(self, tmp_path, monkeypatch):
+        monkeypatch.delenv("EEZ_STUDIO_SOURCE", raising=False)
+        project_path = tmp_path / "backend-unavailable.eez-project"
+        self._run(["--json", "project", "new", "-o", str(project_path), "--name", "NoBackend"])
+        result = self._run(
+            ["--json", "--project", str(project_path), "lvgl", "backend-inspect"],
+            check=False,
+        )
+        assert result.returncode != 0
+        data = json.loads(result.stderr)
+        assert data["type"] == "RuntimeError"
+        assert "EEZ Studio backend is not available" in data["error"]
+        assert "EEZ_STUDIO_SOURCE" in data["error"]
+
+    @pytest.mark.skipif(
+        os.environ.get("EEZ_STUDIO_RUN_LIVE_BACKEND") != "1",
+        reason="set EEZ_STUDIO_RUN_LIVE_BACKEND=1 with a built EEZ_STUDIO_SOURCE to run live backend tests",
+    )
+    def test_real_backend_inspect_required(self, tmp_path):
+        project_path = tmp_path / "backend.eez-project"
+        self._run(["--json", "project", "new", "-o", str(project_path), "--name", "Backend"])
+        self._run(["--project", str(project_path), "lvgl", "ensure-destination"])
+        result = self._run(
+            ["--json", "--project", str(project_path), "lvgl", "backend-inspect"],
+            check=False,
+        )
+        assert result.returncode == 0, (
+            "EEZ Studio backend is required for this E2E test.\n"
+            "Set EEZ_STUDIO_SOURCE to a built https://github.com/eez-open/studio checkout.\n"
+            f"stdout:\n{result.stdout}\nstderr:\n{result.stderr}"
+        )
+        data = json.loads(result.stdout)
+        assert data["ok"] is True
+        assert data["projectInfo"]["displayWidth"] == 800

eez-studio/agent-harness/cli_anything/eez_studio/utils/__init__.py

@@ -0,0 +1 @@
+"""Utility helpers for cli-anything-eez-studio."""

eez-studio/agent-harness/cli_anything/eez_studio/utils/eez_studio_backend.py

@@ -0,0 +1,237 @@
+"""Backend wrapper for the real EEZ Studio source/Electron internals.
+
+The harness edits native ``.eez-project`` JSON directly. Build/export commands
+must call a real EEZ Studio checkout or executable. This module looks for a
+built source tree via ``EEZ_STUDIO_SOURCE`` and invokes upstream Node modules.
+If the backend is not installed, commands fail with concrete setup steps.
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import shlex
+import shutil
+import subprocess
+import tempfile
+from pathlib import Path
+from typing import Any
+
+
+INSTALL_MESSAGE = """EEZ Studio backend is not available.
+
+Install/build the real target software and point this harness at it:
+  git clone https://github.com/eez-open/studio.git
+  cd studio
+  npm install
+  npm run build
+  export EEZ_STUDIO_SOURCE=/absolute/path/to/studio
+
+For full LVGL simulator builds, Docker must also be installed and running.
+"""
+
+
+def find_node() -> str:
+    node = os.environ.get("EEZ_STUDIO_NODE") or shutil.which("node")
+    if not node:
+        raise RuntimeError("Node.js is required for EEZ Studio backend scripts.\n" + INSTALL_MESSAGE)
+    return node
+
+
+def find_source_tree(source: str | None = None) -> Path:
+    candidates = []
+    if source:
+        candidates.append(Path(source))
+    if os.environ.get("EEZ_STUDIO_SOURCE"):
+        candidates.append(Path(os.environ["EEZ_STUDIO_SOURCE"]))
+    for candidate in candidates:
+        package_json = candidate / "package.json"
+        if package_json.is_file():
+            try:
+                package = json.loads(package_json.read_text(encoding="utf-8"))
+            except json.JSONDecodeError:
+                package = {}
+            if package.get("name") == "eezstudio":
+                return candidate.resolve()
+    raise RuntimeError(INSTALL_MESSAGE)
+
+
+def backend_status(source: str | None = None) -> dict[str, Any]:
+    try:
+        source_tree = find_source_tree(source)
+        package = json.loads((source_tree / "package.json").read_text(encoding="utf-8"))
+        build_dir = source_tree / "build"
+        docker_lib = build_dir / "project-editor" / "lvgl" / "docker-build" / "docker-build-lib.js"
+        return {
+            "available": True,
+            "source": str(source_tree),
+            "version": package.get("version"),
+            "node": find_node(),
+            "build_dir": str(build_dir),
+            "docker_build_lib": str(docker_lib),
+            "docker_build_lib_exists": docker_lib.is_file(),
+        }
+    except RuntimeError as exc:
+        return {"available": False, "error": str(exc).strip()}
+
+
+def _write_runner(script: str) -> str:
+    handle = tempfile.NamedTemporaryFile("w", suffix=".js", delete=False, encoding="utf-8")
+    try:
+        handle.write(script)
+        return handle.name
+    finally:
+        handle.close()
+
+
+def _run_node(script: str, args: list[str], source: Path, timeout: int) -> dict[str, Any]:
+    node = find_node()
+    runner = _write_runner(script)
+    env = os.environ.copy()
+    node_path_parts = [
+        str(source / "build"),
+        str(source / "node_modules"),
+        env.get("NODE_PATH", ""),
+    ]
+    env["NODE_PATH"] = os.pathsep.join(part for part in node_path_parts if part)
+    try:
+        result = subprocess.run(
+            [node, runner] + args,
+            cwd=str(source),
+            env=env,
+            capture_output=True,
+            text=True,
+            timeout=timeout,
+        )
+    finally:
+        try:
+            os.unlink(runner)
+        except OSError:
+            pass
+    stdout = result.stdout.strip()
+    stderr = result.stderr.strip()
+    if result.returncode != 0:
+        raise RuntimeError(
+            "EEZ Studio backend command failed "
+            f"(exit {result.returncode}).\nstdout:\n{stdout[-2000:]}\nstderr:\n{stderr[-2000:]}"
+        )
+    try:
+        return json.loads(stdout.splitlines()[-1])
+    except (json.JSONDecodeError, IndexError) as exc:
+        raise RuntimeError(f"EEZ Studio backend returned non-JSON output:\n{stdout[-2000:]}") from exc
+
+
+def inspect_project(project_path: str, source: str | None = None, timeout: int = 60) -> dict[str, Any]:
+    """Use EEZ Studio's docker build library to parse project build metadata."""
+    source_tree = find_source_tree(source)
+    docker_lib = source_tree / "build" / "project-editor" / "lvgl" / "docker-build" / "docker-build-lib.js"
+    if not docker_lib.is_file():
+        raise RuntimeError(
+            "EEZ Studio is present but not built: "
+            f"{docker_lib} does not exist.\nRun `npm run build` in EEZ_STUDIO_SOURCE."
+        )
+    script = r"""
+const path = require("path");
+const lib = require(path.join(process.cwd(), "build/project-editor/lvgl/docker-build/docker-build-lib.js"));
+const projectPath = process.argv[2];
+const logs = [];
+function log(message, type) { logs.push({ message, type: type || "info" }); }
+(async () => {
+  const info = await lib.readProjectFile(projectPath, log);
+  console.log(JSON.stringify({ ok: true, projectInfo: info, logs }));
+})().catch(err => {
+  console.error(err && err.stack ? err.stack : String(err));
+  process.exit(1);
+});
+"""
+    return _run_node(script, [os.path.abspath(project_path)], source_tree, timeout)
+
+
+def build_full_simulator(
+    project_path: str,
+    output_dir: str,
+    repository_name: str = "eez-framework",
+    docker_volume_name: str = "eez-studio-cli-anything",
+    docker_build_path: str | None = None,
+    source: str | None = None,
+    timeout: int = 900,
+) -> dict[str, Any]:
+    """Build the EEZ LVGL full simulator through upstream docker-build-lib."""
+    source_tree = find_source_tree(source)
+    docker_lib = source_tree / "build" / "project-editor" / "lvgl" / "docker-build" / "docker-build-lib.js"
+    if not docker_lib.is_file():
+        raise RuntimeError(
+            "EEZ Studio is present but not built: "
+            f"{docker_lib} does not exist.\nRun `npm run build` in EEZ_STUDIO_SOURCE."
+        )
+    docker_build = docker_build_path or str(source_tree / "packages" / "project-editor" / "lvgl" / "docker-build")
+    script = r"""
+const path = require("path");
+const fs = require("fs");
+const lib = require(path.join(process.cwd(), "build/project-editor/lvgl/docker-build/docker-build-lib.js"));
+const [projectPath, outputDir, repositoryName, dockerVolumeName, dockerBuildPath] = process.argv.slice(2);
+const logs = [];
+function log(message, type) { logs.push({ message, type: type || "info" }); }
+(async () => {
+  const config = { repositoryName, dockerVolumeName, dockerBuildPath };
+  lib.resetAbort();
+  const info = await lib.readProjectFile(projectPath, log);
+  const dockerOk = await lib.checkDocker(log);
+  if (!dockerOk) throw new Error("Docker is required and not ready");
+  const setup = await lib.setupProject(info, config, log);
+  await lib.buildProject(info, config, log, setup.skipEmcmakeCmake);
+  await lib.extractBuild(outputDir, config, log);
+  const required = ["index.html", "index.js", "index.wasm"];
+  for (const file of required) {
+    const full = path.join(outputDir, file);
+    if (!fs.existsSync(full) || fs.statSync(full).size <= 0) {
+      throw new Error(`missing simulator artifact: ${file}`);
+    }
+  }
+  console.log(JSON.stringify({ ok: true, outputDir, projectInfo: info, logs }));
+})().catch(err => {
+  console.error(err && err.stack ? err.stack : String(err));
+  process.exit(1);
+});
+"""
+    return _run_node(
+        script,
+        [
+            os.path.abspath(project_path),
+            os.path.abspath(output_dir),
+            repository_name,
+            docker_volume_name,
+            docker_build,
+        ],
+        source_tree,
+        timeout,
+    )
+
+
+def run_custom_build_command(project_path: str, timeout: int = 300) -> dict[str, Any]:
+    """Run an explicitly provided EEZ build command.
+
+    This supports future or locally patched EEZ Studio builds that expose a
+    documented headless command. The command receives the project path appended
+    as its final argument.
+    """
+    command = os.environ.get("EEZ_STUDIO_BUILD_COMMAND")
+    if not command:
+        raise RuntimeError(
+            "No native EEZ build command configured. Set EEZ_STUDIO_BUILD_COMMAND "
+            "or use `lvgl simulator-build` with EEZ_STUDIO_SOURCE.\n" + INSTALL_MESSAGE
+        )
+    args = shlex.split(command) + [os.path.abspath(project_path)]
+    result = subprocess.run(args, capture_output=True, text=True, timeout=timeout)
+    if result.returncode != 0:
+        raise RuntimeError(
+            f"EEZ_STUDIO_BUILD_COMMAND failed (exit {result.returncode}).\n"
+            f"stdout:\n{result.stdout[-2000:]}\nstderr:\n{result.stderr[-2000:]}"
+        )
+    return {
+        "ok": True,
+        "method": "EEZ_STUDIO_BUILD_COMMAND",
+        "command": args,
+        "stdout": result.stdout,
+        "stderr": result.stderr,
+    }

eez-studio/agent-harness/cli_anything/eez_studio/utils/repl_skin.py

@@ -0,0 +1,567 @@
+"""cli-anything REPL Skin — Unified terminal interface for all CLI harnesses.
+
+Copy this file into your CLI package at:
+    cli_anything/<software>/utils/repl_skin.py
+
+Usage:
+    from cli_anything.<software>.utils.repl_skin import ReplSkin
+
+    skin = ReplSkin("shotcut", version="1.0.0")
+    skin.print_banner()  # auto-detects repo-root or packaged SKILL.md
+    prompt_text = skin.prompt(project_name="my_video.mlt", modified=True)
+    skin.success("Project saved")
+    skin.error("File not found")
+    skin.warning("Unsaved changes")
+    skin.info("Processing 24 clips...")
+    skin.status("Track 1", "3 clips, 00:02:30")
+    skin.table(headers, rows)
+    skin.print_goodbye()
+"""
+
+import os
+import sys
+from pathlib import Path
+
+# ── ANSI color codes (no external deps for core styling) ──────────────
+
+_RESET = "\033[0m"
+_BOLD = "\033[1m"
+_DIM = "\033[2m"
+_ITALIC = "\033[3m"
+_UNDERLINE = "\033[4m"
+
+# Brand colors
+_CYAN = "\033[38;5;80m"       # cli-anything brand cyan
+_CYAN_BG = "\033[48;5;80m"
+_WHITE = "\033[97m"
+_GRAY = "\033[38;5;245m"
+_DARK_GRAY = "\033[38;5;240m"
+_LIGHT_GRAY = "\033[38;5;250m"
+
+# Software accent colors — each software gets a unique accent
+_ACCENT_COLORS = {
+    "gimp":        "\033[38;5;214m",   # warm orange
+    "blender":     "\033[38;5;208m",   # deep orange
+    "inkscape":    "\033[38;5;39m",    # bright blue
+    "audacity":    "\033[38;5;33m",    # navy blue
+    "libreoffice": "\033[38;5;40m",    # green
+    "obs_studio":  "\033[38;5;55m",    # purple
+    "kdenlive":    "\033[38;5;69m",    # slate blue
+    "shotcut":     "\033[38;5;35m",    # teal green
+}
+_DEFAULT_ACCENT = "\033[38;5;75m"      # default sky blue
+
+# Status colors
+_GREEN = "\033[38;5;78m"
+_YELLOW = "\033[38;5;220m"
+_RED = "\033[38;5;196m"
+_BLUE = "\033[38;5;75m"
+_MAGENTA = "\033[38;5;176m"
+
+_SKILL_SOURCE_REPO = os.environ.get("CLI_ANYTHING_SKILL_REPO", "HKUDS/CLI-Anything")
+
+# ── Brand icon ────────────────────────────────────────────────────────
+
+# The cli-anything icon: a small colored diamond/chevron mark
+_ICON = f"{_CYAN}{_BOLD}◆{_RESET}"
+_ICON_SMALL = f"{_CYAN}▸{_RESET}"
+
+# ── Box drawing characters ────────────────────────────────────────────
+
+_H_LINE = "─"
+_V_LINE = "│"
+_TL = "╭"
+_TR = "╮"
+_BL = "╰"
+_BR = "╯"
+_T_DOWN = "┬"
+_T_UP = "┴"
+_T_RIGHT = "├"
+_T_LEFT = "┤"
+_CROSS = "┼"
+
+
+def _strip_ansi(text: str) -> str:
+    """Remove ANSI escape codes for length calculation."""
+    import re
+    return re.sub(r"\033\[[^m]*m", "", text)
+
+
+def _visible_len(text: str) -> int:
+    """Get visible length of text (excluding ANSI codes)."""
+    return len(_strip_ansi(text))
+
+
+def _display_home_path(path: str) -> str:
+    """Display a path relative to the home directory when possible."""
+    expanded = Path(path).expanduser().resolve()
+    home = Path.home().resolve()
+    try:
+        relative = expanded.relative_to(home)
+        return f"~/{relative.as_posix()}"
+    except ValueError:
+        return str(expanded)
+
+
+class ReplSkin:
+    """Unified REPL skin for cli-anything CLIs.
+
+    Provides consistent branding, prompts, and message formatting
+    across all CLI harnesses built with the cli-anything methodology.
+    """
+
+    def __init__(self, software: str, version: str = "1.0.0",
+                 history_file: str | None = None, skill_path: str | None = None):
+        """Initialize the REPL skin.
+
+        Args:
+            software: Software name (e.g., "gimp", "shotcut", "blender").
+            version: CLI version string.
+            history_file: Path for persistent command history.
+                         Defaults to ~/.cli-anything-<software>/history
+            skill_path: Path to the SKILL.md file for agent discovery.
+                        Auto-detected from the repo-root skills/ tree when present,
+                        otherwise from the package's skills/ directory.
+                        Displayed in banner for AI agents to know where to read skill info.
+        """
+        self.software = software.lower().replace("-", "_")
+        self.display_name = software.replace("_", " ").title()
+        self.version = version
+        software_aliases = {"iterm2_ctl": "iterm2"}
+        self.skill_slug = software_aliases.get(self.software, self.software).replace("_", "-")
+        self.skill_id = f"cli-anything-{self.skill_slug}"
+        self.skill_install_cmd = (
+            f"npx skills add {_SKILL_SOURCE_REPO} --skill {self.skill_id} -g -y"
+        )
+        global_skill_root = Path(
+            os.environ.get("CLI_ANYTHING_GLOBAL_SKILLS_DIR", str(Path.home() / ".agents" / "skills"))
+        ).expanduser()
+        self.global_skill_path = str(global_skill_root / self.skill_id / "SKILL.md")
+
+        # Prefer repo-root canonical skills/<skill-id>/SKILL.md when running
+        # inside the CLI-Anything monorepo. Fall back to the packaged
+        # cli_anything/<software>/skills/SKILL.md for installed harnesses.
+        if skill_path is None:
+            package_skill = Path(__file__).resolve().parent.parent / "skills" / "SKILL.md"
+            repo_skill = None
+            for parent in Path(__file__).resolve().parents:
+                candidate = parent / "skills" / self.skill_id / "SKILL.md"
+                if candidate.is_file():
+                    repo_skill = candidate
+                    break
+            if repo_skill and repo_skill.is_file():
+                skill_path = str(repo_skill)
+            elif package_skill.is_file():
+                skill_path = str(package_skill)
+        self.skill_path = skill_path
+        self.accent = _ACCENT_COLORS.get(self.software, _DEFAULT_ACCENT)
+
+        # History file
+        if history_file is None:
+            hist_dir = Path.home() / f".cli-anything-{self.software}"
+            hist_dir.mkdir(parents=True, exist_ok=True)
+            self.history_file = str(hist_dir / "history")
+        else:
+            self.history_file = history_file
+
+        # Detect terminal capabilities
+        self._color = self._detect_color_support()
+
+    def _detect_color_support(self) -> bool:
+        """Check if terminal supports color."""
+        if os.environ.get("NO_COLOR"):
+            return False
+        if os.environ.get("CLI_ANYTHING_NO_COLOR"):
+            return False
+        if not hasattr(sys.stdout, "isatty"):
+            return False
+        return sys.stdout.isatty()
+
+    def _c(self, code: str, text: str) -> str:
+        """Apply color code if colors are supported."""
+        if not self._color:
+            return text
+        return f"{code}{text}{_RESET}"
+
+    # ── Banner ────────────────────────────────────────────────────────
+
+    def print_banner(self):
+        """Print the startup banner with branding."""
+        import textwrap
+
+        inner = 72
+
+        def _box_line(content: str) -> str:
+            """Wrap content in box drawing, padding to inner width."""
+            pad = inner - _visible_len(content)
+            vl = self._c(_DARK_GRAY, _V_LINE)
+            return f"{vl}{content}{' ' * max(0, pad)}{vl}"
+
+        def _meta_lines(label: str, value: str) -> list[str]:
+            """Wrap a metadata line for the banner box."""
+            icon = self._c(_MAGENTA, "◇")
+            label_text = self._c(_DARK_GRAY, label)
+            prefix = f" {icon} {label_text} "
+            available = max(12, inner - _visible_len(prefix))
+            wrapped = textwrap.wrap(
+                value,
+                width=available,
+                break_long_words=True,
+                break_on_hyphens=False,
+            ) or [""]
+            lines = [f"{prefix}{self._c(_LIGHT_GRAY, wrapped[0])}"]
+            continuation_prefix = " " * _visible_len(prefix)
+            for chunk in wrapped[1:]:
+                lines.append(f"{continuation_prefix}{self._c(_LIGHT_GRAY, chunk)}")
+            return lines
+
+        top = self._c(_DARK_GRAY, f"{_TL}{_H_LINE * inner}{_TR}")
+        bot = self._c(_DARK_GRAY, f"{_BL}{_H_LINE * inner}{_BR}")
+
+        # Title:  ◆  cli-anything · Shotcut
+        icon = self._c(_CYAN + _BOLD, "◆")
+        brand = self._c(_CYAN + _BOLD, "cli-anything")
+        dot = self._c(_DARK_GRAY, "·")
+        name = self._c(self.accent + _BOLD, self.display_name)
+        title = f" {icon}  {brand} {dot} {name}"
+
+        ver = f" {self._c(_DARK_GRAY, f'   v{self.version}')}"
+        tip = f" {self._c(_DARK_GRAY, '   Type help for commands, quit to exit')}"
+        empty = ""
+
+        meta_lines: list[str] = []
+        meta_lines.extend(_meta_lines("Install:", self.skill_install_cmd))
+        meta_lines.extend(_meta_lines("Global skill:", _display_home_path(self.global_skill_path)))
+        print(top)
+        print(_box_line(title))
+        print(_box_line(ver))
+        for line in meta_lines:
+            print(_box_line(line))
+        print(_box_line(empty))
+        print(_box_line(tip))
+        print(bot)
+        print()
+
+    # ── Prompt ────────────────────────────────────────────────────────
+
+    def prompt(self, project_name: str = "", modified: bool = False,
+               context: str = "") -> str:
+        """Build a styled prompt string for prompt_toolkit or input().
+
+        Args:
+            project_name: Current project name (empty if none open).
+            modified: Whether the project has unsaved changes.
+            context: Optional extra context to show in prompt.
+
+        Returns:
+            Formatted prompt string.
+        """
+        parts = []
+
+        # Icon
+        if self._color:
+            parts.append(f"{_CYAN}◆{_RESET} ")
+        else:
+            parts.append("> ")
+
+        # Software name
+        parts.append(self._c(self.accent + _BOLD, self.software))
+
+        # Project context
+        if project_name or context:
+            ctx = context or project_name
+            mod = "*" if modified else ""
+            parts.append(f" {self._c(_DARK_GRAY, '[')}")
+            parts.append(self._c(_LIGHT_GRAY, f"{ctx}{mod}"))
+            parts.append(self._c(_DARK_GRAY, ']'))
+
+        parts.append(self._c(_GRAY, " ❯ "))
+
+        return "".join(parts)
+
+    def prompt_tokens(self, project_name: str = "", modified: bool = False,
+                      context: str = ""):
+        """Build prompt_toolkit formatted text tokens for the prompt.
+
+        Use with prompt_toolkit's FormattedText for proper ANSI handling.
+
+        Returns:
+            list of (style, text) tuples for prompt_toolkit.
+        """
+        accent_hex = _ANSI_256_TO_HEX.get(self.accent, "#5fafff")
+        tokens = []
+
+        tokens.append(("class:icon", "◆ "))
+        tokens.append(("class:software", self.software))
+
+        if project_name or context:
+            ctx = context or project_name
+            mod = "*" if modified else ""
+            tokens.append(("class:bracket", " ["))
+            tokens.append(("class:context", f"{ctx}{mod}"))
+            tokens.append(("class:bracket", "]"))
+
+        tokens.append(("class:arrow", " ❯ "))
+
+        return tokens
+
+    def get_prompt_style(self):
+        """Get a prompt_toolkit Style object matching the skin.
+
+        Returns:
+            prompt_toolkit.styles.Style
+        """
+        try:
+            from prompt_toolkit.styles import Style
+        except ImportError:
+            return None
+
+        accent_hex = _ANSI_256_TO_HEX.get(self.accent, "#5fafff")
+
+        return Style.from_dict({
+            "icon": "#5fdfdf bold",     # cyan brand color
+            "software": f"{accent_hex} bold",
+            "bracket": "#585858",
+            "context": "#bcbcbc",
+            "arrow": "#808080",
+            # Completion menu
+            "completion-menu.completion": "bg:#303030 #bcbcbc",
+            "completion-menu.completion.current": f"bg:{accent_hex} #000000",
+            "completion-menu.meta.completion": "bg:#303030 #808080",
+            "completion-menu.meta.completion.current": f"bg:{accent_hex} #000000",
+            # Auto-suggest
+            "auto-suggest": "#585858",
+            # Bottom toolbar
+            "bottom-toolbar": "bg:#1c1c1c #808080",
+            "bottom-toolbar.text": "#808080",
+        })
+
+    # ── Messages ──────────────────────────────────────────────────────
+
+    def success(self, message: str):
+        """Print a success message with green checkmark."""
+        icon = self._c(_GREEN + _BOLD, "✓")
+        print(f"  {icon} {self._c(_GREEN, message)}")
+
+    def error(self, message: str):
+        """Print an error message with red cross."""
+        icon = self._c(_RED + _BOLD, "✗")
+        print(f"  {icon} {self._c(_RED, message)}", file=sys.stderr)
+
+    def warning(self, message: str):
+        """Print a warning message with yellow triangle."""
+        icon = self._c(_YELLOW + _BOLD, "⚠")
+        print(f"  {icon} {self._c(_YELLOW, message)}")
+
+    def info(self, message: str):
+        """Print an info message with blue dot."""
+        icon = self._c(_BLUE, "●")
+        print(f"  {icon} {self._c(_LIGHT_GRAY, message)}")
+
+    def hint(self, message: str):
+        """Print a subtle hint message."""
+        print(f"  {self._c(_DARK_GRAY, message)}")
+
+    def section(self, title: str):
+        """Print a section header."""
+        print()
+        print(f"  {self._c(self.accent + _BOLD, title)}")
+        print(f"  {self._c(_DARK_GRAY, _H_LINE * len(title))}")
+
+    # ── Status display ────────────────────────────────────────────────
+
+    def status(self, label: str, value: str):
+        """Print a key-value status line."""
+        lbl = self._c(_GRAY, f"  {label}:")
+        val = self._c(_WHITE, f" {value}")
+        print(f"{lbl}{val}")
+
+    def status_block(self, items: dict[str, str], title: str = ""):
+        """Print a block of status key-value pairs.
+
+        Args:
+            items: Dict of label -> value pairs.
+            title: Optional title for the block.
+        """
+        if title:
+            self.section(title)
+
+        max_key = max(len(k) for k in items) if items else 0
+        for label, value in items.items():
+            lbl = self._c(_GRAY, f"  {label:<{max_key}}")
+            val = self._c(_WHITE, f"  {value}")
+            print(f"{lbl}{val}")
+
+    def progress(self, current: int, total: int, label: str = ""):
+        """Print a simple progress indicator.
+
+        Args:
+            current: Current step number.
+            total: Total number of steps.
+            label: Optional label for the progress.
+        """
+        pct = int(current / total * 100) if total > 0 else 0
+        bar_width = 20
+        filled = int(bar_width * current / total) if total > 0 else 0
+        bar = "█" * filled + "░" * (bar_width - filled)
+        text = f"  {self._c(_CYAN, bar)} {self._c(_GRAY, f'{pct:3d}%')}"
+        if label:
+            text += f" {self._c(_LIGHT_GRAY, label)}"
+        print(text)
+
+    # ── Table display ─────────────────────────────────────────────────
+
+    def table(self, headers: list[str], rows: list[list[str]],
+              max_col_width: int = 40):
+        """Print a formatted table with box-drawing characters.
+
+        Args:
+            headers: Column header strings.
+            rows: List of rows, each a list of cell strings.
+            max_col_width: Maximum column width before truncation.
+        """
+        if not headers:
+            return
+
+        # Calculate column widths
+        col_widths = [min(len(h), max_col_width) for h in headers]
+        for row in rows:
+            for i, cell in enumerate(row):
+                if i < len(col_widths):
+                    col_widths[i] = min(
+                        max(col_widths[i], len(str(cell))), max_col_width
+                    )
+
+        def pad(text: str, width: int) -> str:
+            t = str(text)[:width]
+            return t + " " * (width - len(t))
+
+        # Header
+        header_cells = [
+            self._c(_CYAN + _BOLD, pad(h, col_widths[i]))
+            for i, h in enumerate(headers)
+        ]
+        sep = self._c(_DARK_GRAY, f" {_V_LINE} ")
+        header_line = f"  {sep.join(header_cells)}"
+        print(header_line)
+
+        # Separator
+        sep_parts = [self._c(_DARK_GRAY, _H_LINE * w) for w in col_widths]
+        sep_line = self._c(_DARK_GRAY, f"  {'───'.join([_H_LINE * w for w in col_widths])}")
+        print(sep_line)
+
+        # Rows
+        for row in rows:
+            cells = []
+            for i, cell in enumerate(row):
+                if i < len(col_widths):
+                    cells.append(self._c(_LIGHT_GRAY, pad(str(cell), col_widths[i])))
+            row_sep = self._c(_DARK_GRAY, f" {_V_LINE} ")
+            print(f"  {row_sep.join(cells)}")
+
+    # ── Help display ──────────────────────────────────────────────────
+
+    def help(self, commands: dict[str, str]):
+        """Print a formatted help listing.
+
+        Args:
+            commands: Dict of command -> description pairs.
+        """
+        self.section("Commands")
+        max_cmd = max(len(c) for c in commands) if commands else 0
+        for cmd, desc in commands.items():
+            cmd_styled = self._c(self.accent, f"  {cmd:<{max_cmd}}")
+            desc_styled = self._c(_GRAY, f"  {desc}")
+            print(f"{cmd_styled}{desc_styled}")
+        print()
+
+    # ── Goodbye ───────────────────────────────────────────────────────
+
+    def print_goodbye(self):
+        """Print a styled goodbye message."""
+        print(f"\n  {_ICON_SMALL} {self._c(_GRAY, 'Goodbye!')}\n")
+
+    # ── Prompt toolkit session factory ────────────────────────────────
+
+    def create_prompt_session(self):
+        """Create a prompt_toolkit PromptSession with skin styling.
+
+        Returns:
+            A configured PromptSession, or None if prompt_toolkit unavailable.
+        """
+        try:
+            from prompt_toolkit import PromptSession
+            from prompt_toolkit.history import FileHistory
+            from prompt_toolkit.auto_suggest import AutoSuggestFromHistory
+            from prompt_toolkit.formatted_text import FormattedText
+
+            style = self.get_prompt_style()
+
+            session = PromptSession(
+                history=FileHistory(self.history_file),
+                auto_suggest=AutoSuggestFromHistory(),
+                style=style,
+                enable_history_search=True,
+            )
+            return session
+        except ImportError:
+            return None
+
+    def get_input(self, pt_session, project_name: str = "",
+                  modified: bool = False, context: str = "") -> str:
+        """Get input from user using prompt_toolkit or fallback.
+
+        Args:
+            pt_session: A prompt_toolkit PromptSession (or None).
+            project_name: Current project name.
+            modified: Whether project has unsaved changes.
+            context: Optional context string.
+
+        Returns:
+            User input string (stripped).
+        """
+        if pt_session is not None:
+            from prompt_toolkit.formatted_text import FormattedText
+            tokens = self.prompt_tokens(project_name, modified, context)
+            return pt_session.prompt(FormattedText(tokens)).strip()
+        else:
+            raw_prompt = self.prompt(project_name, modified, context)
+            return input(raw_prompt).strip()
+
+    # ── Toolbar builder ───────────────────────────────────────────────
+
+    def bottom_toolbar(self, items: dict[str, str]):
+        """Create a bottom toolbar callback for prompt_toolkit.
+
+        Args:
+            items: Dict of label -> value pairs to show in toolbar.
+
+        Returns:
+            A callable that returns FormattedText for the toolbar.
+        """
+        def toolbar():
+            from prompt_toolkit.formatted_text import FormattedText
+            parts = []
+            for i, (k, v) in enumerate(items.items()):
+                if i > 0:
+                    parts.append(("class:bottom-toolbar.text", "  │  "))
+                parts.append(("class:bottom-toolbar.text", f" {k}: "))
+                parts.append(("class:bottom-toolbar", v))
+            return FormattedText(parts)
+        return toolbar
+
+
+# ── ANSI 256-color to hex mapping (for prompt_toolkit styles) ─────────
+
+_ANSI_256_TO_HEX = {
+    "\033[38;5;33m":  "#0087ff",  # audacity navy blue
+    "\033[38;5;35m":  "#00af5f",  # shotcut teal
+    "\033[38;5;39m":  "#00afff",  # inkscape bright blue
+    "\033[38;5;40m":  "#00d700",  # libreoffice green
+    "\033[38;5;55m":  "#5f00af",  # obs purple
+    "\033[38;5;69m":  "#5f87ff",  # kdenlive slate blue
+    "\033[38;5;75m":  "#5fafff",  # default sky blue
+    "\033[38;5;80m":  "#5fd7d7",  # brand cyan
+    "\033[38;5;208m": "#ff8700",  # blender deep orange
+    "\033[38;5;214m": "#ffaf00",  # gimp warm orange
+}

eez-studio/agent-harness/setup.py

@@ -0,0 +1,41 @@
+from pathlib import Path
+
+from setuptools import find_namespace_packages, setup
+
+
+README = Path("cli_anything/eez_studio/README.md")
+
+
+setup(
+    name="cli-anything-eez-studio",
+    version="0.1.0",
+    description="Agent-friendly CLI harness for EEZ Studio project, LVGL, and SCPI workflows",
+    long_description=README.read_text(encoding="utf-8") if README.exists() else "",
+    long_description_content_type="text/markdown",
+    author="cli-anything contributors",
+    python_requires=">=3.10",
+    packages=find_namespace_packages(include=["cli_anything.*"]),
+    package_data={
+        "cli_anything.eez_studio": ["skills/*.md"],
+    },
+    include_package_data=True,
+    install_requires=[
+        "click>=8.0.0",
+        "prompt-toolkit>=3.0.0",
+    ],
+    extras_require={
+        "dev": ["pytest>=7.0.0"],
+    },
+    entry_points={
+        "console_scripts": [
+            "cli-anything-eez-studio=cli_anything.eez_studio.eez_studio_cli:main",
+        ],
+    },
+    classifiers=[
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.10",
+        "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+        "Topic :: Scientific/Engineering",
+        "Topic :: Software Development :: Embedded Systems",
+    ],
+)

registry.json

@@ -233,6 +233,25 @@
         }
       ]
     },
+    {
+      "name": "eez-studio",
+      "display_name": "EEZ Studio",
+      "version": "0.1.0",
+      "description": "EEZ Studio project, LVGL UI, and SCPI command automation via native .eez-project JSON and real EEZ Studio backend hooks",
+      "requires": "EEZ Studio source checkout built with npm run build; Docker for full LVGL simulator builds",
+      "homepage": "https://www.envox.eu/studio/studio-introduction/",
+      "source_url": null,
+      "install_cmd": "pip install git+https://github.com/HKUDS/CLI-Anything.git#subdirectory=eez-studio/agent-harness",
+      "entry_point": "cli-anything-eez-studio",
+      "skill_md": "skills/cli-anything-eez-studio/SKILL.md",
+      "category": "automation",
+      "contributors": [
+        {
+          "name": "CLI-Anything-Team",
+          "url": "https://github.com/HKUDS/CLI-Anything"
+        }
+      ]
+    },
     {
       "name": "eth2-quickstart",
       "display_name": "ETH2 QuickStart",

skills/cli-anything-eez-studio/SKILL.md

@@ -0,0 +1,59 @@
+---
+name: "cli-anything-eez-studio"
+description: "Use EEZ Studio from the command line: inspect and modify native .eez-project files, edit LVGL screens/widgets, manage SCPI commands, and invoke the real EEZ Studio backend for LVGL builds."
+---
+
+# cli-anything-eez-studio
+
+Use this skill when you need to automate EEZ Studio projects, LVGL UI scaffolding, SCPI instrument command metadata, or backend LVGL simulator builds.
+
+## Install
+
+```bash
+cd eez-studio/agent-harness
+pip install -e .
+```
+
+Backend commands require the real EEZ Studio source tree:
+
+```bash
+git clone https://github.com/eez-open/studio.git
+cd studio
+npm install
+npm run build
+export EEZ_STUDIO_SOURCE=/absolute/path/to/studio
+```
+
+## Core Usage
+
+Always use `--json` for agent-readable output.
+
+```bash
+cli-anything-eez-studio --json project new -o panel.eez-project --name Panel
+cli-anything-eez-studio --json --project panel.eez-project lvgl add-label --text "Ready"
+cli-anything-eez-studio --json --project panel.eez-project lvgl add-button --text "Run"
+cli-anything-eez-studio --json --project panel.eez-project project widgets
+```
+
+## SCPI Commands
+
+```bash
+cli-anything-eez-studio --json --project panel.eez-project scpi subsystem-add SOURCE
+cli-anything-eez-studio --json --project panel.eez-project scpi command-add SOURCE :VOLTage?
+cli-anything-eez-studio --json --project panel.eez-project scpi parameter-add SOURCE :VOLTage? channel --type nr1 --optional
+```
+
+## Backend Commands
+
+```bash
+cli-anything-eez-studio --json backend status
+cli-anything-eez-studio --json --project panel.eez-project lvgl ensure-destination
+cli-anything-eez-studio --json --project panel.eez-project lvgl backend-inspect
+cli-anything-eez-studio --json --project panel.eez-project lvgl simulator-build build/sim
+```
+
+`lvgl backend-inspect` and `lvgl simulator-build` call EEZ Studio's built Node modules. They should fail loudly if the backend is missing.
+
+## State
+
+Use `session undo`, `session redo`, and `session status` during REPL or scripted sessions. One-shot commands with `--project` auto-save project mutations unless `--dry-run` is provided.