office-install

name	office-install
description	Environment setup for office-skills. When Claude needs to verify or install prerequisites before running any office skill workflow — detects platform, checks what's present, acquires what's missing to a local tools/ directory, resolves npm dependencies, and writes a paths.json that other skills read.

Office Skills — Environment Setup

This skill installs the tools required by the office-skills repository into a single local directory, resolves npm dependencies, and writes a paths.json that other skills use to locate them. Follow it sequentially — each phase gates the next. Skip phases where all checks already pass.

Do not run this proactively. Only follow this workflow when:

• A script fails because a tool is missing
• The user explicitly asks to set up the environment
• You're operating in a new environment for the first time

Non-interactive execution

All command line calls must use non-interactive flags. The user interacts with the agent, not the terminal. This means:

• Use -y, --yes, -f, --force, --no-pager, and non-interactive equivalents whenever available
• Never use git commit without -m (always provide the message)
• Never use interactive cp, mv, or rm confirmations — use -f or equivalent
• Pipe yes | to commands that stubbornly require confirmation when no flag exists
• Always redirect output appropriately; if you need to see output, capture it and surface it to the user

The user should never see a prompt hang waiting for their input. If a command blocks, you have failed this requirement.

Tool home

All tools are installed under:

.agents/skills/office-install/tools/

If this repo is used globally (e.g. from ~/.agents/skills/), that path is ~/.agents/skills/office-install/tools/. The install script resolves the correct root automatically.

After installation, a paths.json is written to the same tools/ directory. Other skills read this file to locate uv, deno, soffice, and the node_modules directory without assuming they are on PATH.

Two install scenarios

This skill works identically in two layouts:

	Project	Global
Skill root	{project}/.agents/skills/office-install/	~/.agents/skills/office-install/
deno.json / deno.lock	Copied from resources/ to project root	Adapted version from resources/ in skill root
node_modules/	{project_root}/node_modules/	{skill_root}/node_modules/
Deno invocation	Bare deno from project root	officedeno wrapper script

Phase 0 determines which scenario applies. All later phases branch on it.

Phase 0: Detect environment

Run these checks and record the results. Every later decision branches on them.

Legacy skill detection

Check for old, deprecated individual office skills (pptx, docx, pdf, xlsx) in the standard skills paths. If found, ask the user if they want to uninstall them and replace them with the office-skills versions.

macOS / Linux:

for skill in pptx docx pdf xlsx; do
  if [ -d "$HOME/.agents/skills/$skill" ] || [ -d ".agents/skills/$skill" ]; then
    echo "Legacy skill found: $skill"
  fi
done

Windows (PowerShell):

$legacySkills = @("pptx", "docx", "pdf", "xlsx")
$paths = @(
    (Join-Path $env:USERPROFILE ".agents\skills"),
    (Join-Path $PWD ".agents\skills")
)
foreach ($path in $paths) {
    foreach ($skill in $legacySkills) {
        $skillPath = Join-Path $path $skill
        if (Test-Path $skillPath) {
            Write-Host "Legacy skill found: $skill at $skillPath"
        }
    }
}

If legacy skills are detected, ask the user: "I've detected old versions of Office skills (e.g., pptx, docx). Would you like to uninstall them and replace them with the new office-skills suite?" If yes, delete the folders before proceeding to Phase 1.

Platform detection

macOS / Linux:

uname -s 2>/dev/null || echo WINDOWS
uname -m 2>/dev/null
echo "$SHELL"

Windows (PowerShell):

[System.Runtime.InteropServices.RuntimeInformation]::OSDescription
[Environment]::Is64BitOperatingSystem

Record:

• Platform: macOS / Linux / Windows
• Architecture: arm64 / x86_64
• Has admin/elevation: yes / no / unknown

If on Windows and the user hasn't stated whether elevation is available, ask before proceeding. Do not assume.

Skill-root resolution

Determine whether the skill is installed project-local or globally:

SKILL_ROOT=""
for candidate in \
  ".agents/skills/office-install" \
  "$HOME/.agents/skills/office-install"; do
  if [ -f "$candidate/SKILL.md" ]; then
    SKILL_ROOT="$(cd "$candidate" && pwd)"
    break
  fi
done

IS_GLOBAL=false
if [[ "$SKILL_ROOT" == "$HOME/"* ]]; then
  IS_GLOBAL=true
fi

Windows (PowerShell):

$skillRoot = ""
$isGlobal = $false

$projectPath = Join-Path $PWD ".agents\skills\office-install\SKILL.md"
$globalPath = Join-Path $env:USERPROFILE ".agents\skills\office-install\SKILL.md"

if (Test-Path $projectPath) {
    $skillRoot = Join-Path $PWD ".agents\skills\office-install"
} elseif (Test-Path $globalPath) {
    $skillRoot = Join-Path $env:USERPROFILE ".agents\skills\office-install"
    $isGlobal = $true
}

Record:

• SKILL_ROOT: absolute path to office-install/ directory
• IS_GLOBAL: true or false

Phase 1: Python runtime — uv

uv is the single prerequisite for all Python-based skills. It bundles its own Python — no system Python needed.

Check

if [ -f "$SKILL_ROOT/tools/uv" ] || [ -f "$SKILL_ROOT/tools/uv.exe" ]; then
  echo "uv found in tools/"
elif command -v uv &>/dev/null; then
  echo "uv on PATH"
fi

If uv is already in tools/ or on PATH (version 0.4+), skip to Phase 2.

Corporate network / TLS certificate support

uv does not use the system certificate store by default. On corporate networks that proxy TLS with a self-signed certificate, uv will fail with certificate errors.

Set this environment variable to tell uv to use the system native TLS certificates:

export UV_NATIVE_TLS=1

On Windows (PowerShell profile):

[System.Environment]::SetEnvironmentVariable('UV_NATIVE_TLS', '1', 'User')

If that doesn't resolve it, use:

export UV_CERT=/path/to/corporate-ca.pem
# or per-invocation:
uv --cert /path/to/corporate-ca.pem ...

Always set UV_NATIVE_TLS=1 before running uv in this skill. This uses the system certificate store which on corporate machines already has the corporate root certificate.

Install to tools/

macOS / Linux:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"
curl -LsSf https://astral.sh/uv/install.sh | DENO_INSTALL=no UV_INSTALL_DIR="$TOOLS_DIR" sh -s -- --no-modify-path

Windows — elevation available:

$toolsDir = Join-Path $skillRoot "tools"
New-Item -ItemType Directory -Force -Path $toolsDir | Out-Null
winget install astral-sh.uv --location $toolsDir

Windows — no elevation:

$toolsDir = Join-Path $skillRoot "tools"
New-Item -ItemType Directory -Force -Path $toolsDir | Out-Null
$arch = if ([Environment]::Is64BitOperatingSystem) { "x86_64" } else { "i686" }
$uvVersion = "0.7.12"
$url = "https://github.com/astral-sh/uv/releases/download/$uvVersion/uv-$arch-pc-windows-msvc.zip"
$zip = Join-Path $toolsDir "uv.zip"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest $url -OutFile $zip
Expand-Archive $zip $toolsDir -Force
Remove-Item $zip

Verify

"$SKILL_ROOT/tools/uv" --version

If uv was already on PATH and not in tools/, copy it:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"
cp "$(command -v uv)" "$TOOLS_DIR/"

Phase 2: JavaScript runtime — deno

Required only for the pptx html2pptx workflow. If the user is only working with DOCX, PDF, or XLSX, skip this phase entirely.

Check

deno --version

If this succeeds (any version 2.0+), copy it to tools/ and skip the download:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"
cp "$(command -v deno)" "$TOOLS_DIR/"

Install to tools/

macOS / Linux:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"
curl -fsSL https://deno.land/install.sh | DENO_INSTALL="$TOOLS_DIR" sh

Windows — elevation available:

$toolsDir = Join-Path $skillRoot "tools"
New-Item -ItemType Directory -Force -Path $toolsDir | Out-Null
winget install DenoLand.Deno --location $toolsDir

Windows — no elevation:

$toolsDir = Join-Path $skillRoot "tools"
New-Item -ItemType Directory -Force -Path $toolsDir | Out-Null
$denoVersion = "2.3.2"
$url = "https://github.com/denoland/deno/releases/download/v$denoVersion/deno-x86_64-pc-windows-msvc.zip"
$zip = Join-Path $toolsDir "deno.zip"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest $url -OutFile $zip
Expand-Archive $zip $toolsDir -Force
Remove-Item $zip

Corporate network / TLS certificate support

Deno does not use the system certificate store by default. On corporate networks that proxy TLS with a self-signed certificate, Deno will fail with certificate errors.

Set this environment variable to tell Deno to read the system CA store:

export DENO_TLS_CA_STORE=system

On Windows (PowerShell profile):

[System.Environment]::SetEnvironmentVariable('DENO_TLS_CA_STORE', 'system', 'User')

If that doesn't resolve it, use:

export DENO_CERT=/path/to/corporate-ca.pem
# or per-invocation:
deno --cert /path/to/corporate-ca.pem ...

Always set DENO_TLS_CA_STORE=system before running deno in this skill.

Verify

macOS / Linux:

DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" eval "console.log('deno works')"

Windows (PowerShell):

$env:DENO_TLS_CA_STORE = "system"
& "$skillRoot\tools\deno.exe" eval "console.log('deno works')"

Phase 3: Deno npm dependencies + Playwright browser

Required only for the pptx html2pptx workflow and pdf JavaScript libraries (same gate as Phase 2). If the user is only working with DOCX or XLSX text operations, skip this phase entirely.

What this installs

The following npm packages are declared in deno.json (shipped at $SKILL_ROOT/resources/deno.json) and required by office skill scripts:

Package	Purpose
playwright	Headless browser for HTML rendering
sharp	Image processing (SVG→PNG rasterization, has platform-specific native binaries)
pptxgenjs	PowerPoint file generation
react	React runtime for icon rendering
react-dom	Server-side React rendering
react-icons	Icon component library
pdf-lib	PDF creation and modification
pdfjs-dist	PDF text extraction

Plus the Playwright Chromium browser binary (~150MB).

Check

Verify that node_modules/ exists with the key packages installed, including a platform-matching @img/sharp-* native binary:

macOS / Linux:

if [ -d "node_modules" ] && [ -d "node_modules/sharp" ] && [ -d "node_modules/playwright" ]; then
  echo "Deno npm dependencies appear installed"
else
  echo "Deno npm dependencies need installation"
fi

Windows (PowerShell):

$nmDir = if ($isGlobal) { Join-Path $skillRoot "node_modules" } else { Join-Path $PWD "node_modules" }
if ((Test-Path $nmDir) -and (Test-Path (Join-Path $nmDir "sharp")) -and (Test-Path (Join-Path $nmDir "playwright"))) {
    Write-Host "Deno npm dependencies appear installed"
} else {
    Write-Host "Deno npm dependencies need installation"
}

If the check passes, skip to the Playwright browser step below.

Step 1: Place deno.json and deno.lock

The shipped deno.json and deno.lock are at $SKILL_ROOT/resources/deno.json and $SKILL_ROOT/resources/deno.lock. They define the import map and integrity-pin all packages.

Project case — copy to the project root:

cp "$SKILL_ROOT/resources/deno.json" "./deno.json"
cp "$SKILL_ROOT/resources/deno.lock" "./deno.lock"

Windows (PowerShell):

Copy-Item (Join-Path $skillRoot "resources\deno.json") (Join-Path $PWD "deno.json") -Force
Copy-Item (Join-Path $skillRoot "resources\deno.lock") (Join-Path $PWD "deno.lock") -Force

Global case — copy to skill root:

macOS / Linux:

cp "$SKILL_ROOT/resources/deno.json" "$SKILL_ROOT/deno.json"
cp "$SKILL_ROOT/resources/deno.lock" "$SKILL_ROOT/deno.lock"

Windows (PowerShell):

Copy-Item (Join-Path $skillRoot "resources\deno.json") (Join-Path $skillRoot "deno.json") -Force
Copy-Item (Join-Path $skillRoot "resources\deno.lock") (Join-Path $skillRoot "deno.lock") -Force

The deno.lock file does NOT need modification — it pins package integrity hashes, not import paths.

Step 2: Run deno install

This downloads all npm packages declared in deno.json into a local node_modules/ directory, enforced by the integrity hashes in deno.lock. No system Node.js or npm is required.

Project case — run from project root (where deno.json was just copied):

macOS / Linux:

DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" install

Windows (PowerShell):

$env:DENO_TLS_CA_STORE = "system"
& "$skillRoot\tools\deno.exe" install

Global case — run from the skill root with explicit config/lock paths:

macOS / Linux:

DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" install --config "$SKILL_ROOT/deno.json" --lock "$SKILL_ROOT/deno.lock"

Windows (PowerShell):

$env:DENO_TLS_CA_STORE = "system"
& "$skillRoot\tools\deno.exe" install --config "$skillRoot\deno.json" --lock "$skillRoot\deno.lock"

This creates node_modules/ in the same directory as deno.json. For the project case, that's the project root. For the global case, that's the skill root.

Step 3: Install Playwright Chromium browser

Project case:

DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" run --node-modules-dir=auto npm:playwright install chromium

Global case:

export DENO_NODE_MODULES_DIR="$SKILL_ROOT"
DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" run --config "$SKILL_ROOT/deno.json" --node-modules-dir npm:playwright install chromium

Windows (PowerShell) — global case:

$env:DENO_NODE_MODULES_DIR = $skillRoot
$env:DENO_TLS_CA_STORE = "system"
& "$skillRoot\tools\deno.exe" run --config "$skillRoot\deno.json" --node-modules-dir npm:playwright install chromium

This downloads Chromium to a userspace cache (~150MB). No elevation needed.

If the download fails due to network policy:

• Set HTTPS_PROXY / HTTP_PROXY environment variables
• Or download the Chromium archive manually and set PLAYWRIGHT_BROWSERS_PATH

Step 4: (Global only) Write officedeno wrapper to working directory

In a global install, the user runs deno from their project directory — which has no deno.json. The officedeno wrapper script points deno at the global deno.json, import map, and node_modules/.

macOS / Linux:

if [ "$IS_GLOBAL" = true ]; then
  sed "s|__SKILL_ROOT_PLACEHOLDER__|$SKILL_ROOT|g" \
    "$SKILL_ROOT/scripts/officedeno" > ./officedeno
  chmod +x ./officedeno
fi

Windows (PowerShell):

if ($isGlobal) {
    $template = Get-Content (Join-Path $skillRoot "scripts\officedeno.ps1") -Raw
    $script = $template -replace '__SKILL_ROOT_PLACEHOLDER__', $skillRoot
    $script | Set-Content (Join-Path $PWD "officedeno.ps1") -Encoding UTF8NoBOM
}

How other skills use the wrapper: instead of DENO_TLS_CA_STORE=system deno run --allow-all script.js, they use ./officedeno run --allow-all script.js (or .\officedeno.ps1 on Windows). This resolves the import map and node_modules from the global skill root automatically.

Step 5: Cross-platform targeting (optional)

If you need native binaries for a platform other than the current one (e.g., preparing a project on macOS to run on Windows), set environment variables before installing:

macOS / Linux:

npm_config_platform=win32 npm_config_arch=x64 DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" install

Windows (PowerShell):

$env:npm_config_platform = "win32"
$env:npm_config_arch = "x64"
$env:DENO_TLS_CA_STORE = "system"
& "$skillRoot\tools\deno.exe" install

Supported platform/arch combinations:

• linux + x64 | arm64
• darwin + x64 | arm64
• win32 + x64

Step 6: Verify

Verify all 8 npm packages resolve and sharp's native binary loads:

macOS / Linux:

DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" eval '
  await import("npm:pptxgenjs");
  await import("npm:sharp");
  await import("npm:playwright");
  await import("npm:pdf-lib");
  console.log("All Deno npm dependencies OK");
'

DENO_TLS_CA_STORE=system "$SKILL_ROOT/tools/deno" eval '
  const sharp = (await import("npm:sharp")).default;
  await sharp(Buffer.from("<svg></svg>")).png().toBuffer();
  console.log("sharp native binary OK");
'

Windows (PowerShell):

$env:DENO_TLS_CA_STORE = "system"
& "$skillRoot\tools\deno.exe" eval @"
  await import("npm:pptxgenjs");
  await import("npm:sharp");
  await import("npm:playwright");
  await import("npm:pdf-lib");
  console.log("All Deno npm dependencies OK");
"@

& "$skillRoot\tools\deno.exe" eval @"
  const sharp = (await import("npm:sharp")).default;
  await sharp(Buffer.from("<svg></svg>")).png().toBuffer();
  console.log("sharp native binary OK");
"@

For the global case, append --config "$SKILL_ROOT/deno.json" --node-modules-dir to each deno invocation, and ensure DENO_NODE_MODULES_DIR="$SKILL_ROOT" is set.

Phase 4: LibreOffice

Required for: PPTX-to-PDF conversion, XLSX formula recalculation, and document validation rendering. If the user only needs text extraction, XML editing, or PDF form filling, skip this phase.

Check

soffice --version 2>/dev/null || echo "not found"

If soffice is on PATH, symlink it into tools/ and skip the download:

macOS / Linux:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"
ln -sf "$(command -v soffice)" "$TOOLS_DIR/soffice"

Install to tools/

The goal is to extract a portable soffice binary into tools/ without requiring admin rights or system-wide installation.

macOS — download DMG, extract app:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"

ARCH=$(uname -m)
if [ "$ARCH" = "arm64" ]; then
  LO_ARCH="aarch64"
else
  LO_ARCH="x86_64"
fi

LO_VERSION="26.2.2"
DMG_URL="https://download.documentfoundation.org/libreoffice/stable/${LO_VERSION}/mac/${LO_ARCH}/LibreOffice_${LO_VERSION}_MacOS_${LO_ARCH}.dmg"
DMG_PATH="$TOOLS_DIR/LibreOffice.dmg"

echo "Downloading LibreOffice ${LO_VERSION} for macOS ${LO_ARCH}..."
curl -fSL -o "$DMG_PATH" "$DMG_URL"

hdiutil attach "$DMG_PATH" -quiet -mountpoint "$TOOLS_DIR/dmg_mount"
cp -R "$TOOLS_DIR/dmg_mount/LibreOffice.app" "$TOOLS_DIR/"
hdiutil detach "$TOOLS_DIR/dmg_mount" -quiet
rm "$DMG_PATH"

ln -sf "$TOOLS_DIR/LibreOffice.app/Contents/MacOS/soffice" "$TOOLS_DIR/soffice"

Linux — download AppImage:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"

ARCH=$(uname -m)
LO_VERSION="26.2.2"
APPIMAGE_URL="https://libreoffice.soluzioniopen.com/download/LibreOffice-${LO_VERSION}-standard-${ARCH}.AppImage"

echo "Downloading LibreOffice ${LO_VERSION} AppImage for ${ARCH}..."
curl -fSL -o "$TOOLS_DIR/LibreOffice.AppImage" "$APPIMAGE_URL"
chmod +x "$TOOLS_DIR/LibreOffice.AppImage"

ln -sf "$TOOLS_DIR/LibreOffice.AppImage" "$TOOLS_DIR/soffice"

Linux — alternative: download .tar.gz from official site:

TOOLS_DIR="$SKILL_ROOT/tools"
mkdir -p "$TOOLS_DIR"

ARCH=$(uname -m)
LO_VERSION="26.2.2"

if command -v dpkg &>/dev/null; then
  PKG_TYPE="deb"
elif command -v rpm &>/dev/null; then
  PKG_TYPE="rpm"
fi

TAR_URL="https://download.documentfoundation.org/libreoffice/stable/${LO_VERSION}/linux/${ARCH}/${PKG_TYPE}/LibreOffice_${LO_VERSION}_Linux_${ARCH}_${PKG_TYPE}.tar.gz"
echo "Downloading LibreOffice ${LO_VERSION} for Linux ${ARCH} (${PKG_TYPE})..."
curl -fSL -o "$TOOLS_DIR/libreoffice.tar.gz" "$TAR_URL"

cd "$TOOLS_DIR"
tar xzf libreoffice.tar.gz
cd LibreOffice_*/

if [ "$PKG_TYPE" = "deb" ]; then
  dpkg-deb -x DEBS/libreoffice*-core_*.deb "$TOOLS_DIR/libreoffice-opt/"
  dpkg-deb -x DEBS/libreoffice*-core-*.deb "$TOOLS_DIR/libreoffice-opt/" 2>/dev/null || true
  for deb in DEBS/libreoffice*.deb; do dpkg-deb -x "$deb" "$TOOLS_DIR/libreoffice-opt/"; done
else
  for rpm in RPMS/*.rpm; do rpm2cpio "$rpm" | cpio -id -D "$TOOLS_DIR/libreoffice-opt/"; done 2>/dev/null || true
fi

rm libreoffice.tar.gz
ln -sf "$TOOLS_DIR/libreoffice-opt/opt/libreoffice*/program/soffice" "$TOOLS_DIR/soffice"

Windows — download LibreOffice Portable:

$toolsDir = Join-Path $skillRoot "tools"
New-Item -ItemType Directory -Force -Path $toolsDir | Out-Null

$loVersion = "26.2.2"
$url = "https://download.documentfoundation.org/libreoffice/portable/$loVersion/LibreOfficePortable_${loVersion}_MultilingualStandard.paf.exe"
$installer = Join-Path $toolsDir "LibreOfficePortable.paf.exe"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest $url -OutFile $installer

# PortableApps installer can be extracted with 7-Zip without running it
# The soffice binary will be at: tools\LibreOfficePortable\App\libreoffice\program\soffice.exe
Write-Host "Run the LibreOffice Portable installer and point it to: $toolsDir"
Write-Host "Or extract with 7-Zip: 7z x $installer -o$toolsDir\LibreOfficePortable"

Verify

"$SKILL_ROOT/tools/soffice" --version

Phase 5: Write tools/paths.json

After all required tools are installed, write a paths.json to the tools/ directory. This is the single file that other skills read to locate tools — they check it before falling back to PATH.

Format

{
  "tools_dir": "<absolute path to office-install/tools/>",
  "skill_root": "<absolute path to office-install/>",
  "uv": "<absolute path to uv binary>",
  "deno": "<absolute path to deno binary>",
  "soffice": "<absolute path to soffice binary>",
  "node_modules_dir": "<absolute path to node_modules/>",
  "global_install": false,
  "env": {
    "DENO_TLS_CA_STORE": "system"
  }
}

Every path must be absolute. Use the resolved path — no ~, no relative paths.

If a tool was not installed (e.g. deno skipped because user only needs DOCX), set its value to null:

{
  "tools_dir": "/abs/path/to/tools",
  "skill_root": "/abs/path/to/office-install",
  "uv": "/abs/path/to/tools/uv",
  "deno": null,
  "soffice": "/abs/path/to/tools/soffice",
  "node_modules_dir": null,
  "global_install": false,
  "env": {
    "DENO_TLS_CA_STORE": "system"
  }
}

Writing the file

macOS / Linux:

TOOLS_DIR="$SKILL_ROOT/tools"

NODE_MODULES_DIR=""
if [ -d "./node_modules" ] && [ "$IS_GLOBAL" = false ]; then
  NODE_MODULES_DIR="$(cd ./node_modules && pwd)"
elif [ -d "$SKILL_ROOT/node_modules" ] && [ "$IS_GLOBAL" = true ]; then
  NODE_MODULES_DIR="$SKILL_ROOT/node_modules"
fi

python3 -c "
import json, os
paths = {
  'tools_dir': os.environ['TOOLS_DIR'],
  'skill_root': os.environ['SKILL_ROOT'],
  'uv': os.path.join(os.environ['TOOLS_DIR'], 'uv'),
  'deno': os.path.join(os.environ['TOOLS_DIR'], 'deno'),
  'soffice': os.path.join(os.environ['TOOLS_DIR'], 'soffice'),
  'node_modules_dir': os.environ.get('NODE_MODULES_DIR') or None,
  'global_install': os.environ['IS_GLOBAL'] == 'true',
  'env': {'DENO_TLS_CA_STORE': 'system'}
}
with open(os.path.join(os.environ['TOOLS_DIR'], 'paths.json'), 'w') as f:
  json.dump(paths, f, indent=2)
  f.write('\n')
" TOOLS_DIR="$TOOLS_DIR" SKILL_ROOT="$SKILL_ROOT" NODE_MODULES_DIR="$NODE_MODULES_DIR" IS_GLOBAL="$IS_GLOBAL"

Windows (PowerShell):

$toolsDir = Join-Path $skillRoot "tools"

$nmDir = $null
if (-not $isGlobal -and (Test-Path (Join-Path $PWD "node_modules"))) {
    $nmDir = Join-Path $PWD "node_modules"
} elseif ($isGlobal -and (Test-Path (Join-Path $skillRoot "node_modules"))) {
    $nmDir = Join-Path $skillRoot "node_modules"
}

$paths = @{
    tools_dir = $toolsDir
    skill_root = $skillRoot
    uv = Join-Path $toolsDir "uv.exe"
    deno = Join-Path $toolsDir "deno.exe"
    soffice = Join-Path $toolsDir "soffice.exe"
    node_modules_dir = $nmDir
    global_install = $isGlobal
    env = @{
        DENO_TLS_CA_STORE = "system"
    }
}

$paths | ConvertTo-Json -Depth 3 | Set-Content (Join-Path $toolsDir "paths.json") -Encoding UTF8NoBOM

Always rewrite paths.json at the end of every run of this skill, even if some tools were already present. This ensures the file stays in sync with what's actually installed.

Phase 6: Verify full stack

Run the checks below for the skills the user needs. Only test what's relevant. Use the paths from paths.json.

Read paths.json

macOS / Linux:

TOOLS_DIR="$SKILL_ROOT/tools"
UV=$(python3 -c 'import json,os; d=json.load(open(os.environ["_PF"])); print(d["uv"] or "uv")' _PF="$TOOLS_DIR/paths.json")
DENO=$(python3 -c 'import json,os; d=json.load(open(os.environ["_PF"])); print(d["deno"] or "deno")' _PF="$TOOLS_DIR/paths.json")
SOFFICE=$(python3 -c 'import json,os; d=json.load(open(os.environ["_PF"])); print(d["soffice"] or "soffice")' _PF="$TOOLS_DIR/paths.json")

Python skills (PPTX/DOCX/PDF/XLSX editing)

"$UV" run public/office-pptx/scripts/inventory.py --help

html2pptx (PPTX creation from scratch)

DENO_TLS_CA_STORE=system "$DENO" eval "import('npm:pptxgenjs').then(m => console.log('pptxgenjs', m.default ? 'ok' : 'fail'))"

sharp native binary

DENO_TLS_CA_STORE=system "$DENO" eval "
  const sharp = (await import('npm:sharp')).default;
  await sharp(Buffer.from('<svg></svg>')).png().toBuffer();
  console.log('sharp native binary OK');
"

pdf-lib (PDF creation/modification)

DENO_TLS_CA_STORE=system "$DENO" eval "import('npm:pdf-lib').then(m => console.log('pdf-lib OK'))"

Visual verification (PPTX/DOCX rendering)

"$SOFFICE" --headless --version

PDF to images

"$UV" run public/office-pdf/scripts/convert_pdf_to_images.py --help

Report which capabilities are available and which are not. Frame missing capabilities as "these specific workflows won't work" rather than "setup failed."

---

Skills install and update — from GitHub

The office-skills project lives at https://github.com/cristoslc/office-skills. This section handles installing the skills (SKILL.md files, scripts, schemas) from the source repo and checking for updates.

Source vs. install layout

This repository is the source. Skills are authored under public/office-*/. Each public/office-*/ directory contains a SKILL.md entrypoint and supporting files (scripts, schemas, references).

Consumers install skills into the standard agent skills path. The canonical install location is .agents/skills/ — either project-local or global:

Scope	Path	Used by
Project-local	<repo-root>/.agents/skills/office-*/	When office-skills is a dependency of another project
Global	~/.agents/skills/office-*/	When office-skills is used standalone across projects

The install process takes the public/office-*/ directories from the source repo and places them at the standard .agents/skills/ path. The tools/ directory, node_modules/, and paths.json live inside office-install/ — they are generated at install time, not shipped in the repo.

Install methods (ordered by preference)

1. npx skills (standard agent skills CLI)

The Vercel skills CLI is the standard installer for the Agent Skills open format:

# Install all office-skills to .agents/skills/ (project-local)
npx skills add cristoslc/office-skills --all

# Install to global location
npx skills add cristoslc/office-skills --all -g

# Non-interactive (CI/CD)
npx skills add cristoslc/office-skills --all -g -y

# Install specific skills only
npx skills add cristoslc/office-skills --skill office-install --skill office-pptx -g

2. Git clone (if git is available)

git clone https://github.com/cristoslc/office-skills.git /tmp/office-skills

SKILLS_DIR="$HOME/.agents/skills"
mkdir -p "$SKILLS_DIR"
for skill_dir in /tmp/office-skills/public/office-*/; do
  skill_name=$(basename "$skill_dir")
  ln -sf "$skill_dir" "$SKILLS_DIR/$skill_name"
done

echo "$(git -C /tmp/office-skills rev-parse HEAD)" > "$SKILLS_DIR/office-install/.installed-sha"

3. Direct download (no git, no npm)

macOS / Linux:

SKILLS_DIR="$HOME/.agents/skills"
mkdir -p "$SKILLS_DIR"

echo "Downloading office-skills from GitHub..."
curl -fSL "https://github.com/cristoslc/office-skills/archive/refs/heads/trunk.tar.gz" -o /tmp/office-skills.tar.gz
tar xzf /tmp/office-skills.tar.gz -C /tmp/ "office-skills-trunk/public"
cp -R /tmp/office-skills-trunk/public/ "$SKILLS_DIR/"

rm -rf /tmp/office-skills.tar.gz /tmp/office-skills-trunk

REMOTE_SHA=$(curl -fsSL "https://api.github.com/repos/cristoslc/office-skills/commits/trunk" 2>/dev/null | python3 -c "import json,sys; print(json.load(sys.stdin)['sha'])" 2>/dev/null || echo "unknown")
echo "$REMOTE_SHA" > "$SKILLS_DIR/office-install/.installed-sha"

echo "Skills installed to $SKILLS_DIR/ (SHA: $REMOTE_SHA)"

Windows (PowerShell):

$skillsDir = Join-Path $env:USERPROFILE ".agents\skills"
New-Item -ItemType Directory -Force -Path $skillsDir | Out-Null

$url = "https://github.com/cristoslc/office-skills/archive/refs/heads/trunk.zip"
$zip = Join-Path $env:TEMP "office-skills.zip"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest $url -OutFile $zip

Expand-Archive $zip $env:TEMP -Force
$extracted = Join-Path $env:TEMP "office-skills-trunk\public"

Copy-Item -Path "$extracted\office-*" -Destination $skillsDir -Recurse -Force

$sha = (Invoke-RestMethod -Uri "https://api.github.com/repos/cristoslc/office-skills/commits/trunk" -ErrorAction SilentlyContinue).sha
if ($sha) { $sha | Out-File (Join-Path $skillsDir "office-install\.installed-sha") -Encoding utf8 }

Remove-Item $zip -Force
Remove-Item (Join-Path $env:TEMP "office-skills-trunk") -Recurse -Force

Write-Host "Skills installed to $skillsDir"

Check for updates

LOCAL_SHA_FILE="$HOME/.agents/skills/office-install/.installed-sha"

if [ -f "$LOCAL_SHA_FILE" ]; then
  LOCAL_SHA=$(cat "$LOCAL_SHA_FILE")
  REMOTE_SHA=$(curl -fsSL "https://api.github.com/repos/cristoslc/office-skills/commits/trunk" | python3 -c "import json,sys; print(json.load(sys.stdin)['sha'])" 2>/dev/null)
  if [ "$REMOTE_SHA" = "$LOCAL_SHA" ]; then
    echo "Skills are up to date ($REMOTE_SHA)"
  else
    echo "Update available: local=$LOCAL_SHA remote=$REMOTE_SHA"
  fi
else
  echo "No local version recorded. Run the install to get skills."
fi

Apply updates

Re-run the same install method used originally. Tools, node_modules/, and paths.json are preserved — they live inside office-install/ and are not overwritten by the skill download.

Using npx skills:

npx skills add cristoslc/office-skills --all -g -y

Using git:

git -C /tmp/office-skills pull --ff-only
# Re-symlink if needed

Using direct download: repeat the "Direct download" steps above.

After updating the skill files, re-run this skill (Phases 0–6) to regenerate paths.json and install any newly-added npm dependencies.

GitHub API rate limits

Unauthenticated GitHub API requests are rate-limited to 60/hour. If you hit the limit:

• Use the archive URL directly (no API call): https://github.com/cristoslc/office-skills/archive/refs/heads/trunk.tar.gz
• Set GITHUB_TOKEN in the environment for 5000/hour rate limit

Offline / air-gapped environments

If the machine has no internet access:

1. Download the tarball on another machine: curl -fSL -o office-skills.tar.gz https://github.com/cristoslc/office-skills/archive/refs/heads/trunk.tar.gz
2. Transfer it via USB, shared drive, etc.
3. Extract manually: tar xzf office-skills.tar.gz && cp -R office-skills-trunk/public/ ~/.agents/skills/

Tool discovery — how other skills find tools

Other skills (pptx, docx, pdf, xlsx) locate tools using this search order:

1. Read paths.json from {skill_root}/tools/paths.json
2. If a tool's value is a non-null string, use that path
3. If a tool's value is null or the key is missing, fall back to PATH (command -v <tool>)
4. Set environment variables from the env object (e.g. DENO_TLS_CA_STORE=system)
5. If global_install is true, use the officedeno wrapper (in the working directory) instead of bare deno

Shell helper — resolve a tool path

office_tool() {
  local tool="$1"
  local paths_file
  for dir in ".agents/skills/office-install/tools" "$HOME/.agents/skills/office-install/tools"; do
    if [ -f "$dir/paths.json" ]; then
      paths_file="$dir"
      break
    fi
  done
  if [ -n "$paths_file" ]; then
    local resolved
    resolved=$(python3 -c 'import json,sys,os; d=json.load(open(os.environ["_PFILE"])); v=d.get(os.environ["_PNAME"]); print(v if v else "")' _PFILE="$paths_file/paths.json" _PNAME="$tool" 2>/dev/null)
    if [ -n "$resolved" ]; then
      echo "$resolved"
      return
    fi
  fi
  command -v "$tool"
}

Resolving the deno command

For skills that need to run deno scripts, check global_install in paths.json:

TOOLS_DIR="$(office_tool tools_dir)"
GLOBAL=$(python3 -c 'import json,os; d=json.load(open(os.environ["_PF"])); print(d.get("global_install", False))' _PF="$TOOLS_DIR/paths.json" 2>/dev/null)

if [ "$GLOBAL" = "True" ]; then
  DENO_CMD="./officedeno"
else
  DENO_CMD="$(office_tool deno) || deno"
fi

# Usage
DENO_TLS_CA_STORE=system $DENO_CMD run --allow-all script.js

PowerShell helper — resolve a tool path

function Get-OfficeTool {
    param([string]$ToolName)
    $pathsFile = $null
    foreach ($dir in @(
        (Join-Path $PWD ".agents\skills\office-install\tools"),
        (Join-Path $env:USERPROFILE ".agents\skills\office-install\tools")
    )) {
        $candidate = Join-Path $dir "paths.json"
        if (Test-Path $candidate) { $pathsFile = $candidate; break }
    }
    if ($pathsFile) {
        $paths = Get-Content $pathsFile -Raw | ConvertFrom-Json
        $result = $paths.PSObject.Properties | Where-Object { $_.Name -eq $ToolName } | Select-Object -ExpandProperty Value
        if ($result -and $result -ne "null") { return $result }
    }
    Get-Command $ToolName -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Source
}

Troubleshooting

Deno certificate errors on corporate networks

Set DENO_TLS_CA_STORE=system before all deno invocations:

export DENO_TLS_CA_STORE=system

If this doesn't work, your corporate cert may not be in the system store. Export it as PEM and use:

export DENO_CERT=/path/to/corporate-ca.pem
# or per-invocation:
deno --cert /path/to/corporate-ca.pem ...

"Execution of scripts is disabled on this system" (Windows PowerShell)

Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned

This is a per-user setting and does not require elevation.

Downloaded binary blocked by SmartScreen / endpoint protection

The executable was flagged by the organization's security policy. Options:

• Right-click the .exe → Properties → check "Unblock" (if available)
• Ask IT to allowlist the specific binary hash
• Use a pre-approved Python/Node installation if one exists on the system

Do not try to bypass security controls. Inform the user and ask how to proceed.

Proxy / firewall blocks downloads

If Invoke-WebRequest or curl fails:

• Check if HTTPS_PROXY is set: echo $HTTPS_PROXY
• Ask the user for their proxy URL and set it before retrying
• Some corporate environments require a PAC file — the user will know

uv run fails to download Python

uv downloads Python from GitHub releases. If this is blocked:

• The user can pre-install Python via their IT-approved method
• Then set UV_PYTHON to point to it: export UV_PYTHON="/path/to/python3"
• uv will use that Python instead of downloading its own

sharp native binary errors

If sharp fails at runtime with "Could not load the 'sharp' module" or a platform binary error:

1. Confirm the platform/arch matches:

DENO_TLS_CA_STORE=system "$DENO" eval "console.log(Deno.build.os, Deno.build.arch)"

2. Delete node_modules/ and reinstall with explicit platform:

rm -rf node_modules/
npm_config_platform=win32 npm_config_arch=x64 DENO_TLS_CA_STORE=system "$DENO" install

3. For offline/airgapped systems, download the platform-specific sharp binary from sharp releases and extract into node_modules/@img/sharp-<platform>-<arch>/

deno install integrity check failure

If deno install fails with a hash/integrity error, the deno.lock may be stale (e.g., after a skill update added new packages). Re-run from the skill root:

DENO_TLS_CA_STORE=system "$DENO" install --config "$SKILL_ROOT/deno.json"

This regenerates deno.lock with updated hashes. The developer should then copy the updated lock to resources/deno.lock and commit both resources/deno.json and resources/deno.lock together.

LibreOffice download is too large

The soffice binary alone is ~350MB+. If the download is impractical:

• On macOS: brew install --cask libreoffice (if Homebrew is available)
• On Linux: sudo apt-get install -y libreoffice-core --no-install-recommends (Debian/Ubuntu, smaller footprint)
• Then symlink the system soffice into tools/