Add Claude Desktop extensions (.mcpb) for WordCraft and GridCraft.

Ship unsigned MCPB packages built from the ArtCraft Launcher CLIs, with install docs and skill 0.2.0 updates.

skills/gridcraft-mcp/CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog – gridcraft-mcp
 
+## 0.2.0 (2026-10-19)
+
+- Auslieferung als Claude-Desktop-Erweiterung (`.mcpb`) zusätzlich zum Skill-ZIP.
+- Installation und Doku auf Erweiterung + ZIP umgestellt; manuelle Config nur noch als Entwickler-Alternative.
+- Voraussetzung nennt die Erweiterung als Standardweg.
+- Neue Falle: Text, der mit `=` beginnt, wird als Formel gelesen; Apostroph voranstellen.
+
 ## 0.1.0 (2026-10-19)
 
 - Erstveröffentlichung, getestet mit GridCraft 0.8.0.

skills/gridcraft-mcp/README.md

@@ -8,61 +8,25 @@ Erstellt und bearbeitet Excel-Arbeitsmappen (`.xlsx`, `.csv`) über den MCP-Serv
 
 ## Voraussetzungen
 
-- GridCraft inklusive `gridcraft-cli.exe` ist installiert. Der ArtCraft-Launcher legt die Dateien nach `C:\Program Files\GridCraft\` und trägt nichts in den PATH ein.
-- Claude Desktop ist installiert.
-- Der MCP-Server ist in der `claude_desktop_config.json` eingetragen.
+- Claude Desktop (die App)
+- Die Erweiterung `gridcraft-mcp-….mcpb` und dieses Skill-ZIP (siehe [Installation](#installation))
 
-**Keine Ordnerbeschränkung.** Anders als WordCraft kennt GridCraft keine `--automation-read-root` und `--automation-write-root`. Der Server kann jede Datei lesen und schreiben, die der Windows-Benutzer lesen und schreiben darf. In Claude bei den GridCraft-Werkzeugen `open_workbook`, `save_workbook` und `execute_command` auf „Immer fragen“ lassen. Der Skill weist Claude an, nie über ein Original zu speichern, sondern immer unter einem neuen Namen.
+**Keine Ordnerbeschränkung.** Anders als WordCraft kennt GridCraft keine Lese-/Schreib-Roots. Der Server kann jede Datei lesen und schreiben, die der Windows-Benutzer lesen und schreiben darf. In Claude bei den GridCraft-Werkzeugen `open_workbook`, `save_workbook` und `execute_command` auf „Immer fragen“ lassen.
 
 ## Installation
 
-Git ist nicht nötig.
+Schritt-für-Schritt: [docs/INSTALLATION.md](../../docs/INSTALLATION.md). Kurz:
 
-1. Das ZIP [gridcraft-mcp-v0.1.0.zip](https://git.gundel.dev/dg/claude-skills/releases/tag/gridcraft-mcp/v0.1.0) aus dem Release laden.
-2. In Claude **„+“ → „Skill erstellen“ → „Skill hochladen“** wählen und das ZIP hochladen.
+1. `gridcraft-mcp-v….mcpb` und `gridcraft-mcp-v….zip` aus dem [Release](https://git.gundel.dev/dg/claude-skills/releases/download/gridcraft-mcp%2Fv0.2.0/gridcraft-mcp-v0.2.0.mcpb) laden.
+2. Die `.mcpb` doppelklicken (oder über Einstellungen → Erweiterungen installieren).
+3. Skill-ZIP in Claude hochladen: **„+“ → „Skill erstellen“ → „Skill hochladen“**.
+4. Claude komplett beenden (auch Taskleiste) und neu starten.
 
-## Einrichtung
+**Umsteigen von der manuellen Config:** Wer den Server früher in `claude_desktop_config.json` eingetragen hat: Eintrag `gridcraft` unter `mcpServers` vor der Installation der Erweiterung entfernen (vorher Sicherungskopie der Datei anlegen), sonst gibt es die Werkzeuge doppelt.
 
-In der bestehenden `claude_desktop_config.json` nur einen Eintrag innerhalb von `mcpServers` ergänzen. Bestehende Einträge, zum Beispiel `wordcraft`, bleiben unverändert.
+## Enthaltene Software
 
-```json
-"gridcraft": {
-  "command": "C:\\Program Files\\GridCraft\\gridcraft-cli.exe",
-  "args": ["mcp"]
-}
-```
-
-So sieht `mcpServers` aus, wenn WordCraft schon eingetragen ist. Den vorhandenen `wordcraft`-Block nicht durch dieses Beispiel ersetzen, nur `gridcraft` daneben setzen:
-
-```json
-{
-  "mcpServers": {
-    "wordcraft": {
-      "command": "C:\\Program Files\\WordCraft\\wordcraft-cli.exe",
-      "args": [
-        "mcp",
-        "--author", "Claude",
-        "--automation-read-root", "C:\\Pfad\\zu\\Dokumente",
-        "--automation-write-root", "C:\\Pfad\\zu\\Dokumente\\claude_out"
-      ]
-    },
-    "gridcraft": {
-      "command": "C:\\Program Files\\GridCraft\\gridcraft-cli.exe",
-      "args": ["mcp"]
-    }
-  }
-}
-```
-
-## Einrichtung unter Windows – Stolpersteine
-
-Gemeinsame Punkte (Ort der Config, nur `mcpServers` ergänzen, App überschreibt die Datei): [MCP unter Windows einrichten](../../docs/windows-mcp-einrichtung.md).
-
-- Der ArtCraft-Launcher installiert nach `C:\Program Files\GridCraft\` (`gridcraft.exe` und `gridcraft-cli.exe`) und trägt nichts in den PATH ein. `Get-Command gridcraft-cli` findet die Datei daher nicht; in die Config den vollen Pfad schreiben. Auffinden mit:
-
-  ```powershell
-  Get-ChildItem "$env:ProgramFiles","$env:LOCALAPPDATA" -Recurse -Filter "gridcraft-cli.exe" -ErrorAction SilentlyContinue
-  ```
+Die Erweiterung enthält `gridcraft-cli.exe` aus [GridCraft](https://github.com/storytold/gridcraft) 0.8.0 (MIT oder Apache-2.0). Lizenztexte liegen in der `.mcpb` unter `LICENSES/`.
 
 ## Im Test geprüft
 
@@ -80,15 +44,46 @@ Kurzfassung, die Einzelheiten stehen in [SKILL.md](SKILL.md):
 
 ## Test
 
-Neuen Chat öffnen und fragen: „Sind die GridCraft-Tools verfügbar? Lies A1:E10 aus <Pfad zu einer Test-xlsx>.“
+Neuen Chat öffnen und fragen: „Sind die GridCraft-Tools verfügbar? Lies A1:E10 aus \<Pfad zu einer Test-xlsx\>.“
 
-Fehlen die Tools, zuerst den Eintrag in der Config prüfen. Nicht auf ein anderes Programm ausweichen.
+Fehlen die Tools: Einstellungen → Erweiterungen – ist die Erweiterung eingeschaltet? Dann Claude komplett neu starten.
+
+## Stolpersteine
+
+- Erweiterungen sind nicht signiert; bei Defender-Warnung an Dominic wenden.
+- Formeln mit deutschen Namen ergeben `#NAME?` – englische Funktionsnamen verlangen.
 
 ## Deinstallation/Update
 
-Deinstallation: In Claude den Skill aus der Liste entfernen. Den Block `gridcraft` unter `mcpServers` nur löschen, wenn GridCraft nicht mehr benutzt wird. Andere Einträge in der Config nicht anfassen.
+Deinstallation: Einstellungen → Erweiterungen → entfernen; Skill in der Skill-Liste löschen.
 
-Update: das ZIP der neuen Version aus dem Release laden und wie bei der Installation hochladen. Liegt die alte Fassung noch in Claude, diese vorher entfernen.
+Update: neue `.mcpb` und Skill-ZIP installieren, bestehende Version ersetzen lassen, Claude neu starten.
+
+## Alternative: manuell (für Entwickler)
+
+Statt der Erweiterung kann der MCP-Server in `claude_desktop_config.json` eingetragen werden. Gemeinsame Stolpersteine: [MCP unter Windows einrichten](../../docs/windows-mcp-einrichtung.md).
+
+- Claude-Installer: `%APPDATA%\Claude\claude_desktop_config.json`
+- Microsoft-Store-App: `%LOCALAPPDATA%\Packages\Claude_pzs8sxrjxfjjc\LocalCache\Roaming\Claude\claude_desktop_config.json`
+
+GridCraft muss über den ArtCraft-Launcher installiert sein (`C:\Program Files\GridCraft\gridcraft-cli.exe`).
+
+```json
+{
+  "mcpServers": {
+    "gridcraft": {
+      "command": "C:\\Program Files\\GridCraft\\gridcraft-cli.exe",
+      "args": ["mcp"]
+    }
+  }
+}
+```
+
+Auffinden der EXE:
+
+```powershell
+Get-ChildItem "$env:ProgramFiles","$env:LOCALAPPDATA" -Recurse -Filter "gridcraft-cli.exe" -ErrorAction SilentlyContinue
+```
 
 ## Änderungen
 

skills/gridcraft-mcp/SKILL.md

@@ -9,7 +9,11 @@ GridCraft ist eine Open-Source-Tabellenkalkulation (Rust), die Excel-Parität an
 
 ## Voraussetzung
 
-Der MCP-Server muss verbunden sein (Tools wie `write_range`, `read_range`, `execute_command`). Je nach Client heißen sie mit Präfix, z. B. `mcp__…__gridcraft__write_range`; sind sie zurückgestellt, erst per ToolSearch laden. Fehlen sie, dem Nutzer sagen, dass der Server nicht läuft (Claude-App komplett neu starten, Eintrag in `claude_desktop_config.json` prüfen – die App kann ihn beim Speichern eigener Einstellungen überschreiben), statt auf etwas anderes auszuweichen.
+Der MCP-Server muss verbunden sein (Tools wie `write_range`, `read_range`, `execute_command`). Je nach Client heißen sie mit Präfix, z. B. `mcp__…__gridcraft__write_range`; sind sie zurückgestellt, erst per ToolSearch laden. Fehlen sie, dem Nutzer sagen, dass der Server nicht läuft, statt auf etwas anderes auszuweichen.
+
+**Standardweg:** die Claude-Desktop-Erweiterung „GridCraft für Claude“ ist installiert und eingeschaltet (siehe `docs/INSTALLATION.md`). Fehlen die Tools: Einstellungen → Erweiterungen prüfen, Claude komplett beenden (auch Taskleiste) und neu starten.
+
+**Alternative (Entwickler):** Eintrag `gridcraft` in `claude_desktop_config.json`; die App kann ihn beim Speichern eigener Einstellungen überschreiben.
 
 **Keine Ordnerbeschränkung:** Anders als WordCraft kennt GridCraft keine `--automation-read-root/-write-root`. Der Server kann jede Datei lesen und schreiben, die der Nutzer lesen und schreiben darf. Deshalb:
 - Nur Dateien öffnen, die der Nutzer genannt hat.
@@ -53,6 +57,7 @@ Bereiche mit Blatt: `"Kalkulation!A3:E8"`.
 - **Datumswerte als ISO** (`"2026-10-19"`) oder `=DATE(2026,10,19)`. `"19.10.2026"` wird zu Text. Danach Zahlenformat setzen: `numberFormat: "DD.MM.YYYY"`.
 - **Zahlenformate sind sprachneutral:** `"#,##0.00 €"` erscheint in GridCraft als `1,114.10 €`, in einem deutschen Excel aber korrekt als `1.114,10 €`. Nicht „reparieren“.
 - **Neue Mappe = US-Letter, Blatt heißt `Sheet1`:** für deutsche Dokumente `pageLayout.size {paper: "A4"}` und `sheet.rename {sheet: "Sheet1", name: "…"}`.
+- **Text, der mit `=` beginnt, wird als Formel gelesen.** Beschriftungen wie `= Materialkosten` ergeben `#NAME?`. Wie in Excel einen Apostroph voranstellen: `"'= Materialkosten"` – gespeichert wird reiner Text.
 
 ## Weitere Fallen
 

skills/gridcraft-mcp/extension/LICENSES/LICENSE-APACHE

@@ -0,0 +1,177 @@
+
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skills/gridcraft-mcp/extension/LICENSES/LICENSE-MIT

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 ArtCraft Team and the GridCraft contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
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+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

skills/gridcraft-mcp/extension/LICENSES/NOTICE

@@ -0,0 +1,16 @@
+GridCraft
+Copyright (c) 2026 ArtCraft Team and the GridCraft contributors.
+Licensed under the MIT License or the Apache License, Version 2.0, at your option
+(LICENSE-MIT, LICENSE-APACHE).
+
+The ArtCraft name, wordmark and logos in docs/brand/ are trademarks of the ArtCraft Team. They are
+not open source and are not covered by the license above; their terms are in
+docs/brand/LICENSE-brand.txt.
+
+Third-party material
+
+This product bundles third-party material under its own licenses, listed below. The per-file
+list (author, source, license) is in ATTRIBUTION.md.
+
+None: every bundled asset is original to GridCraft. Builds made with craft-fonts
+(CRAFT_FONTS_DIR) embed the fonts listed in ATTRIBUTION.md under the SIL Open Font License 1.1.

skills/gridcraft-mcp/extension/manifest.json

@@ -0,0 +1,118 @@
+{
+  "manifest_version": "0.3",
+  "name": "gridcraft-mcp",
+  "display_name": "GridCraft für Claude",
+  "version": "0.2.0",
+  "description": "Excel-Arbeitsmappen (.xlsx, .csv) erstellen und bearbeiten. Getestet mit GridCraft 0.8.0. Ohne Ordnersperre – GridCraft kann alle Dateien lesen und schreiben, auf die der Benutzer Zugriff hat.",
+  "author": {
+    "name": "Dominic Gundel"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://git.gundel.dev/dg/claude-skills.git"
+  },
+  "homepage": "https://git.gundel.dev/dg/claude-skills",
+  "license": "MIT",
+  "icon": "icon.png",
+  "compatibility": {
+    "platforms": [
+      "win32"
+    ]
+  },
+  "server": {
+    "type": "binary",
+    "entry_point": "server/gridcraft-cli.exe",
+    "mcp_config": {
+      "command": "${__dirname}/server/gridcraft-cli.exe",
+      "args": [
+        "mcp"
+      ]
+    }
+  },
+  "tools": [
+    {
+      "name": "execute_command",
+      "description": "Run ANY GridCraft command by id with JSON params — every ribbon/menu action is a command. Find ids and parameter docs with list_commands. Examples: {\"command\":\"cell.set\",\"params\":{\"cell\":\"B2\",\"input\":\"=SUM(A1:A9)\"}}; {"
+    },
+    {
+      "name": "list_commands",
+      "description": "List GridCraft commands: id, label, ribbon path, shortcut, a parameter description (`params`) and whether it can run right now. Use it to discover what execute_command can do (e.g. search \"sort\", \"border\", \"chart\", \"shee"
+    },
+    {
+      "name": "inspect_workbook",
+      "description": "Summary of the active workbook: title, path, dirty flag, sheets (name, used range, cell count, tables, charts, merges, filters, freeze panes), defined names, current selection and active cell, calculation mode and undo/r"
+    },
+    {
+      "name": "read_range",
+      "description": "Read cell values from a range as rows (2-D array). Numbers/booleans/strings are returned as JSON values, empty cells as null, errors as {\"error\":\"#DIV/0!\"}. Without `range`, reads the sheet's used range. formulas:true re"
+    },
+    {
+      "name": "write_range",
+      "description": "Write a 2-D array of values starting at the top-left cell of `range` (rows of cells). Numbers, booleans, null (clears) and strings are accepted; strings starting with = are formulas (\"=SUM(B2:B4)\"), other strings are par"
+    },
+    {
+      "name": "set_cell",
+      "description": "Enter one cell exactly as if typed: a number, text, or a formula starting with = (\"=AVERAGE(B2:B9)\"). Dependent cells recalculate. Returns the command result; use get_cell to read the computed value."
+    },
+    {
+      "name": "get_cell",
+      "description": "Details of one cell: computed value and type, formula, display text, raw input, spill range, style, merge, comment and hyperlink."
+    },
+    {
+      "name": "evaluate_formula",
+      "description": "Evaluate a formula against the active sheet WITHOUT changing any cell, e.g. \"=SUM(B2:B10)/COUNT(B2:B10)\" or \"=VLOOKUP(\\\"x\\\",A:B,2,FALSE)\". `cell` sets the formula's position for relative references and ROW()/COLUMN()."
+    },
+    {
+      "name": "select",
+      "description": "Set the selection (what commands without a `range` param act on). Multiple areas with commas: \"A1:B2,D4\". A \"Sheet2!A1\" prefix switches sheets."
+    },
+    {
+      "name": "format_range",
+      "description": "Apply several formats to a range in one call: bold, italic, underline, font name/size, font color, fill color, number format, horizontal alignment, wrap, borders. Colors are \"#RRGGBB\" (fontColor also \"auto\", fillColor al"
+    },
+    {
+      "name": "insert_chart",
+      "description": "Insert a chart from a data range (first row/column used as series names and categories, like Excel). Returns the chart id."
+    },
+    {
+      "name": "create_table",
+      "description": "Format a range as an Excel table (structured references, banded rows, filter buttons). The first row is the header by default."
+    },
+    {
+      "name": "sort_range",
+      "description": "Sort a range by one or more columns. keys: [{\"column\":\"B\",\"order\":\"desc\"}, …] or just [\"B\"]. Without `range` the current region around the selection is sorted; header detection follows Excel unless `header` is given."
+    },
+    {
+      "name": "filter",
+      "description": "Filter rows by a column (turns on AutoFilter on the current region, or `range`, when needed). Give `values` (keep rows whose cell text is one of them), `custom` ({op:\">\", value:\"10\", op2?, value2?, and?}), `top` ({count,"
+    },
+    {
+      "name": "open_workbook",
+      "description": "Open a workbook file (.xlsx, .xlsm, .xls, .xlsb, .ods, .csv, .tsv, .txt, .json) and make it active. Excel 97-2003 .xls imports values, formulas and number formats; XLSB and ODS import worksheet data and cached formula va"
+    },
+    {
+      "name": "save_workbook",
+      "description": "Save the active workbook. The format follows the extension (.xlsx default; .csv/.tsv save the active sheet; .json; .html). Without `path` saves to the workbook's current file."
+    },
+    {
+      "name": "new_workbook",
+      "description": "Create a new workbook and make it active: blank, or a built-in sample (\"budget\", \"sales\", \"grades\")."
+    },
+    {
+      "name": "undo",
+      "description": "Undo the last change(s) to the active workbook."
+    },
+    {
+      "name": "redo",
+      "description": "Redo the last undone change(s)."
+    },
+    {
+      "name": "screenshot",
+      "description": "Save a PNG screenshot of the GridCraft window to `path`. Desktop app only (`gridcraft-cli mcp --connect 7979`)."
+    },
+    {
+      "name": "list_functions",
+      "description": "List worksheet functions: name, category, signature and description. Filter with `search` (name or description) or `category`."
+    }
+  ]
+}

skills/gridcraft-mcp/extension/upstream.json

@@ -0,0 +1,9 @@
+{
+  "sha256": "2eafa6b8d08357fb44610e030ebe54491b5abc1329da3d748878228a868d779a",
+  "version": "0.8.0",
+  "source": "ArtCraft-Launcher",
+  "repository": "https://github.com/storytold/gridcraft",
+  "exe": "gridcraft-cli.exe",
+  "path": "C:\\Program Files\\GridCraft\\gridcraft-cli.exe",
+  "tag": "v0.8.0"
+}