Set up template for Claude integration

.claude/README.md

@@ -0,0 +1,63 @@
+# Claude Code Configuration
+
+This directory contains configuration for using this project with Claude Code, particularly in the online environment.
+
+## SessionStart Hook
+
+The `hooks/SessionStart` script automatically runs when a new Claude Code session begins. It:
+
+1. **Installs pixi** (if not already installed) - The package and environment manager
+2. **Installs project dependencies** - All Python packages and tools defined in `pyproject.toml`
+3. **Sets up pre-commit hooks** - For automatic code quality checks
+4. **Configures git** - Sets up merge drivers for lockfiles
+
+## Usage with Claude Code Online
+
+When you start a Claude Code online session, the SessionStart hook will automatically run and set up your environment. You'll see output indicating the setup progress.
+
+### Available Commands
+
+Once setup is complete, Claude can use these pixi tasks:
+
+#### Testing & Quality
+- `pixi run test` - Run pytest tests
+- `pixi run coverage` - Run tests with coverage report
+- `pixi run lint` - Run ruff and pylint linters
+- `pixi run format` - Format code with ruff
+
+#### CI Tasks
+- `pixi run ci` - Run full CI pipeline (format, lint, test, coverage)
+- `pixi run fix` - Auto-fix common issues (update lock, format, lint)
+
+#### Pre-commit
+- `pixi run pre-commit` - Run all pre-commit hooks
+- `pixi run pre-commit-update` - Update pre-commit hook versions
+
+### How It Works
+
+1. **First session**: The hook installs pixi and all dependencies (may take a few minutes)
+2. **Subsequent sessions**: The hook verifies the environment is ready (much faster)
+3. **Environment activated**: All pixi commands are available to Claude
+
+### Troubleshooting
+
+If you encounter issues:
+
+1. **Dependencies not found**: Run `pixi install` manually
+2. **Lockfile conflicts**: Run `pixi run update-lock`
+3. **Pre-commit issues**: Run `pixi run pre-commit-update`
+4. **Full reset**: Delete `.pixi` directory and restart session
+
+### Customization
+
+You can modify `hooks/SessionStart` to:
+- Install additional tools
+- Run custom setup scripts
+- Configure environment variables
+- Set up external services
+
+## Learn More
+
+- [Claude Code Documentation](https://docs.claude.com/claude-code)
+- [Pixi Documentation](https://pixi.sh)
+- [Project README](../README.md)

.claude/activate.sh

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+#!/bin/bash
+# Source this file to activate the pixi environment in your current shell
+# Usage: source .claude/activate.sh
+
+# Add pixi to PATH
+export PATH="$HOME/.pixi/bin:$PATH"
+
+# Optional: Activate pixi shell if available
+if command -v pixi &> /dev/null; then
+    echo "✅ Pixi environment activated"
+    echo "💡 Available commands:"
+    echo "   pixi run test        - Run tests"
+    echo "   pixi run lint        - Run linters"
+    echo "   pixi run format      - Format code"
+    echo "   pixi run ci          - Run full CI"
+    pixi task list --summary 2>/dev/null || true
+else
+    echo "⚠️  Pixi not found. Please run .claude/hooks/SessionStart first."
+fi

.claude/hooks/SessionStart

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+#!/bin/bash
+# SessionStart hook for Claude Code online environment
+# This script sets up the Python development environment using pixi
+
+set -e
+
+echo "🚀 Setting up Python Template environment..."
+
+# Check if pixi is installed
+if ! command -v pixi &> /dev/null; then
+    echo "📦 Installing pixi..."
+    curl -fsSL https://pixi.sh/install.sh | bash
+
+    # Add pixi to PATH for current session
+    export PATH="$HOME/.pixi/bin:$PATH"
+
+    # Source bashrc to get pixi in PATH (if bashrc was updated)
+    [ -f "$HOME/.bashrc" ] && source "$HOME/.bashrc"
+
+    echo "✅ Pixi installed successfully"
+else
+    echo "✅ Pixi already installed"
+fi
+
+# Ensure pixi is in PATH for this session
+export PATH="$HOME/.pixi/bin:$PATH"
+
+# Install project dependencies
+echo "📦 Installing project dependencies..."
+pixi install
+
+# Run pre-commit installation
+echo "🔧 Setting up pre-commit hooks..."
+pixi run pre-commit install || echo "⚠️  Pre-commit installation skipped (optional)"
+
+# Set up git merge driver for lockfiles
+echo "🔧 Configuring git merge driver..."
+pixi run setup-git-merge-driver || true
+
+echo "✅ Environment setup complete!"
+echo ""
+echo "Available pixi tasks:"
+pixi task list
+echo ""
+echo "💡 Common commands:"
+echo "  pixi run test        - Run tests"
+echo "  pixi run lint        - Run linters"
+echo "  pixi run format      - Format code"
+echo "  pixi run ci          - Run full CI pipeline"
+echo ""

README.md

@@ -36,6 +36,27 @@ If you want to use docker you may want to run the `scripts/setup_host.sh` script
 
 If you are using pixi, look at the available tasks in pyproject.toml  If you are new to pixi follow the instructions on the pixi [website](https://prefix.dev/)
 
+# Claude Code Online Support
+
+This template includes built-in support for [Claude Code](https://docs.claude.com/claude-code) online environment! The `.claude/hooks/SessionStart` script automatically:
+
+- Installs pixi package manager
+- Sets up all project dependencies
+- Configures pre-commit hooks
+- Prepares the development environment
+
+**Quick Start with Claude Code:**
+1. Open this repository in Claude Code online
+2. The environment sets up automatically via the SessionStart hook
+3. Claude can immediately run commands like `pixi run test`, `pixi run lint`, etc.
+
+**Manual activation (if needed):**
+```bash
+source .claude/activate.sh
+```
+
+See [.claude/README.md](.claude/README.md) for detailed information about the Claude Code configuration.
+
 # Github setup
 
 There are github workflows for CI, codecov and automated pypi publishing in `ci.yml` and `publish.yml`.