diff --git a/OBSIDIAN_KNOWLEDGE_WORKFLOW.md b/OBSIDIAN_KNOWLEDGE_WORKFLOW.md
new file mode 100644
index 0000000..bc94405
--- /dev/null
+++ b/OBSIDIAN_KNOWLEDGE_WORKFLOW.md
@@ -0,0 +1,43 @@
+# Obsidian Knowledge Workflow (Recommended)
+
+## Decision
+
+Use **Obsidian Canvas** as the primary workspace, then add mind map views only for summary snapshots.
+
+Reason:
+- Canvas handles mixed artifacts better (notes, links, files, tasks, prompts).
+- Your autoresearch flow needs iterative evidence tracking, not only tree structures.
+- Canvas works well with role-based agent outputs from OpenCode.
+
+## Suggested structure
+
+Create a vault folder:
+
+- `Research/Inbox/`
+- `Research/Sources/`
+- `Research/Summaries/`
+- `Research/Canvas/`
+
+Create one canvas per initiative:
+
+- `Research/Canvas/<topic>.canvas`
+
+## Autoresearch loop
+
+1. Run OpenCode agent/research tasks.
+2. Save output markdown into `Research/Sources/`.
+3. Generate a short synthesis note in `Research/Summaries/`.
+4. Place both on Canvas:
+   - source nodes
+   - synthesis nodes
+   - decision nodes
+5. Link unresolved questions back to next OpenCode task.
+
+## Optional mind map usage
+
+Use mind maps only for:
+- executive brief snapshots
+- taxonomy views
+- fast planning overviews
+
+Do not use mind maps as the system of record for evidence and citations.
diff --git a/README.md b/README.md
index 77aab25..79591e9 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ This folder is safe to commit to GitHub. It contains config and installers, but
 - `scripts/install-linux.sh`
 - `scripts/install-windows.ps1`
 - `.env.example`
+- `OBSIDIAN_KNOWLEDGE_WORKFLOW.md`
 
 ## How to use
 
@@ -18,6 +19,23 @@ This folder is safe to commit to GitHub. It contains config and installers, but
 4. Copy `.env.example` to `.env` and fill keys locally.
 5. Run `opencode auth login <provider>` or `/connect` in OpenCode.
 
+### Optional enhancements toggles
+
+Linux:
+
+```bash
+INSTALL_PROMPTFOO=1 INSTALL_OPENVIKING=1 INSTALL_IMPECCABLE=1 bash scripts/install-linux.sh
+```
+
+Windows PowerShell:
+
+```powershell
+$env:INSTALL_PROMPTFOO="1"
+$env:INSTALL_OPENVIKING="1"
+$env:INSTALL_IMPECCABLE="1"
+.\scripts\install-windows.ps1
+```
+
 ## Important
 
 - Do not commit `.env`.
diff --git a/scripts/install-linux.sh b/scripts/install-linux.sh
index 08f8803..2ce1a68 100755
--- a/scripts/install-linux.sh
+++ b/scripts/install-linux.sh
@@ -4,6 +4,11 @@ set -euo pipefail
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 TEMPLATES_DIR="$ROOT_DIR/templates"
 TARGET_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/opencode"
+TOOLS_DIR="$HOME/.local/share/opencode-tools"
+
+INSTALL_PROMPTFOO="${INSTALL_PROMPTFOO:-1}"
+INSTALL_OPENVIKING="${INSTALL_OPENVIKING:-0}"
+INSTALL_IMPECCABLE="${INSTALL_IMPECCABLE:-0}"
 
 echo "Installing OpenCode config to: $TARGET_DIR"
 mkdir -p "$TARGET_DIR"
@@ -19,7 +24,40 @@ else
   echo "Skipping package install: bun/npm not found"
 fi
 
+if [[ "$INSTALL_PROMPTFOO" == "1" ]]; then
+  echo "Installing Promptfoo..."
+  if command -v npm >/dev/null 2>&1; then
+    npm install -g promptfoo
+  elif command -v bun >/dev/null 2>&1; then
+    bun add -g promptfoo
+  else
+    echo "Skipping Promptfoo install: bun/npm not found"
+  fi
+fi
+
+if [[ "$INSTALL_OPENVIKING" == "1" ]]; then
+  echo "Installing OpenViking files to $TOOLS_DIR/openviking..."
+  mkdir -p "$TOOLS_DIR"
+  if [[ -d "$TOOLS_DIR/openviking/.git" ]]; then
+    git -C "$TOOLS_DIR/openviking" pull --ff-only
+  else
+    git clone https://github.com/volcengine/OpenViking "$TOOLS_DIR/openviking"
+  fi
+  echo "OpenViking repo synced. Use its README to run Docker/services."
+fi
+
+if [[ "$INSTALL_IMPECCABLE" == "1" ]]; then
+  echo "Installing Impeccable skills repo to $TOOLS_DIR/impeccable..."
+  mkdir -p "$TOOLS_DIR"
+  if [[ -d "$TOOLS_DIR/impeccable/.git" ]]; then
+    git -C "$TOOLS_DIR/impeccable" pull --ff-only
+  else
+    git clone https://github.com/pbakaus/impeccable "$TOOLS_DIR/impeccable"
+  fi
+fi
+
 echo "Done."
 echo "Next steps:"
 echo "1) Add keys locally with: opencode auth login <provider>"
 echo "2) Verify with: bunx oh-my-opencode doctor --verbose"
+echo "3) Optional toggles: INSTALL_PROMPTFOO=1 INSTALL_OPENVIKING=1 INSTALL_IMPECCABLE=1"
diff --git a/scripts/install-windows.ps1 b/scripts/install-windows.ps1
index b11bfe7..06fc64a 100644
--- a/scripts/install-windows.ps1
+++ b/scripts/install-windows.ps1
@@ -3,6 +3,11 @@ $ErrorActionPreference = "Stop"
 $RootDir = Split-Path -Path (Split-Path -Parent $MyInvocation.MyCommand.Path) -Parent
 $TemplatesDir = Join-Path $RootDir "templates"
 $TargetDir = Join-Path $env:USERPROFILE ".config\opencode"
+$ToolsDir = Join-Path $env:USERPROFILE ".opencode-tools"
+
+if (-not $env:INSTALL_PROMPTFOO) { $env:INSTALL_PROMPTFOO = "1" }
+if (-not $env:INSTALL_OPENVIKING) { $env:INSTALL_OPENVIKING = "0" }
+if (-not $env:INSTALL_IMPECCABLE) { $env:INSTALL_IMPECCABLE = "0" }
 
 Write-Host "Installing OpenCode config to: $TargetDir"
 New-Item -ItemType Directory -Path $TargetDir -Force | Out-Null
@@ -22,7 +27,40 @@ if (Get-Command bun -ErrorAction SilentlyContinue) {
   Write-Host "Skipping package install: bun/npm not found"
 }
 
+if ($env:INSTALL_PROMPTFOO -eq "1") {
+  Write-Host "Installing Promptfoo..."
+  if (Get-Command npm -ErrorAction SilentlyContinue) {
+    npm install -g promptfoo
+  } elseif (Get-Command bun -ErrorAction SilentlyContinue) {
+    bun add -g promptfoo
+  } else {
+    Write-Host "Skipping Promptfoo install: bun/npm not found"
+  }
+}
+
+if ($env:INSTALL_OPENVIKING -eq "1") {
+  $OpenVikingDir = Join-Path $ToolsDir "openviking"
+  New-Item -ItemType Directory -Path $ToolsDir -Force | Out-Null
+  if (Test-Path (Join-Path $OpenVikingDir ".git")) {
+    git -C $OpenVikingDir pull --ff-only
+  } else {
+    git clone https://github.com/volcengine/OpenViking $OpenVikingDir
+  }
+  Write-Host "OpenViking repo synced. Use its README to run Docker/services."
+}
+
+if ($env:INSTALL_IMPECCABLE -eq "1") {
+  $ImpeccableDir = Join-Path $ToolsDir "impeccable"
+  New-Item -ItemType Directory -Path $ToolsDir -Force | Out-Null
+  if (Test-Path (Join-Path $ImpeccableDir ".git")) {
+    git -C $ImpeccableDir pull --ff-only
+  } else {
+    git clone https://github.com/pbakaus/impeccable $ImpeccableDir
+  }
+}
+
 Write-Host "Done."
 Write-Host "Next steps:"
 Write-Host "1) Add keys locally with: opencode auth login <provider>"
 Write-Host "2) Verify with: bunx oh-my-opencode doctor --verbose"
+Write-Host "3) Optional env toggles: INSTALL_PROMPTFOO=1 INSTALL_OPENVIKING=1 INSTALL_IMPECCABLE=1"