feat: Complete fleet — 94 skills across 10+ domains

Pulled ALL skills from 15 source repositories:
- anthropics/skills: 16 (docs, design, MCP, testing)
- obra/superpowers: 14 (TDD, debugging, agents, planning)
- coreyhaines31/marketingskills: 25 (marketing, CRO, SEO, growth)
- better-auth/skills: 5 (auth patterns)
- vercel-labs/agent-skills: 5 (React, design, Vercel)
- antfu/skills: 16 (Vue, Vite, Vitest, pnpm, Turborepo)
- Plus 13 individual skills from various repos

Mosaic Stack is not limited to coding — the Orchestrator and
subagents serve coding, business, design, marketing, writing,
logistics, analysis, and more.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

skills/pnpm/references/core-store.md

@@ -0,0 +1,179 @@
+---
+name: pnpm-store
+description: Content-addressable storage system that makes pnpm fast and disk-efficient
+---
+
+# pnpm Store
+
+pnpm uses a content-addressable store to save disk space and speed up installations. All packages are stored once globally and hard-linked to project `node_modules`.
+
+## How It Works
+
+1. **Global Store**: Packages are downloaded once to a central store
+2. **Hard Links**: Projects link to store instead of copying files
+3. **Content-Addressable**: Files are stored by content hash, deduplicating identical files
+
+### Storage Layout
+
+```
+~/.pnpm-store/              # Global store (default location)
+└── v3/
+    └── files/
+        └── <hash>/         # Files stored by content hash
+
+project/
+└── node_modules/
+    ├── .pnpm/              # Virtual store (hard links to global store)
+    │   ├── lodash@4.17.21/
+    │   │   └── node_modules/
+    │   │       └── lodash/
+    │   └── express@4.18.2/
+    │       └── node_modules/
+    │           ├── express/
+    │           └── <deps>/  # Flat structure for dependencies
+    ├── lodash -> .pnpm/lodash@4.17.21/node_modules/lodash
+    └── express -> .pnpm/express@4.18.2/node_modules/express
+```
+
+## Store Commands
+
+```bash
+# Show store location
+pnpm store path
+
+# Remove unreferenced packages
+pnpm store prune
+
+# Check store integrity
+pnpm store status
+
+# Add package to store without installing
+pnpm store add <pkg>
+```
+
+## Configuration
+
+### Store Location
+
+```ini
+# .npmrc
+store-dir=~/.pnpm-store
+
+# Or use environment variable
+PNPM_HOME=~/.local/share/pnpm
+```
+
+### Virtual Store
+
+The virtual store (`.pnpm` in `node_modules`) contains symlinks to the global store:
+
+```ini
+# Customize virtual store location
+virtual-store-dir=node_modules/.pnpm
+
+# Alternative flat layout
+node-linker=hoisted
+```
+
+## Disk Space Benefits
+
+pnpm saves significant disk space:
+
+- **Deduplication**: Same package version stored once across all projects
+- **Content deduplication**: Identical files across different packages stored once
+- **Hard links**: No copying, just linking
+
+### Check disk usage
+
+```bash
+# Compare actual vs apparent size
+du -sh node_modules        # Apparent size
+du -sh --apparent-size node_modules  # With hard links counted
+```
+
+## Node Linker Modes
+
+Configure how `node_modules` is structured:
+
+```ini
+# Default: Symlinked structure (recommended)
+node-linker=isolated
+
+# Flat node_modules (npm-like, for compatibility)
+node-linker=hoisted
+
+# PnP mode (experimental, like Yarn PnP)
+node-linker=pnp
+```
+
+### Isolated Mode (Default)
+
+- Strict dependency resolution
+- No phantom dependencies
+- Packages can only access declared dependencies
+
+### Hoisted Mode
+
+- Flat `node_modules` like npm
+- For compatibility with tools that don't support symlinks
+- Loses strictness benefits
+
+## Side Effects Cache
+
+Cache build outputs for native modules:
+
+```ini
+# Enable side effects caching
+side-effects-cache=true
+
+# Store side effects in project (instead of global store)
+side-effects-cache-readonly=true
+```
+
+## Shared Store Across Machines
+
+For CI/CD, you can share the store:
+
+```yaml
+# GitHub Actions example
+- uses: pnpm/action-setup@v4
+  with:
+    run_install: false
+
+- name: Get pnpm store directory
+  shell: bash
+  run: echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+
+- uses: actions/cache@v4
+  with:
+    path: ${{ env.STORE_PATH }}
+    key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+```
+
+## Troubleshooting
+
+### Store corruption
+```bash
+# Verify and fix store
+pnpm store status
+pnpm store prune
+```
+
+### Hard link issues (network drives, Docker)
+```ini
+# Use copying instead of hard links
+package-import-method=copy
+```
+
+### Permission issues
+```bash
+# Fix store permissions
+chmod -R u+w ~/.pnpm-store
+```
+
+<!-- 
+Source references:
+- https://pnpm.io/symlinked-node-modules-structure
+- https://pnpm.io/cli/store
+- https://pnpm.io/npmrc#store-dir
+-->