ai-cli-kit: Instructions file for Claude Code

AI Command Rules

Place this file in your project root to apply these rules to Claude Code.

Source: https://github.com/russodope/claude-skill-command-rules

Shell Command Policy

Before writing or executing any shell command:

1. Detect the environment — OS, shell type, Python env, Docker/container, SSH context
2. Apply correct syntax — quoting, variables, operators, path separators differ per shell
3. Add error handling — set -euo pipefail (bash) or $ErrorActionPreference = 'Stop' (PS)
4. Use non-interactive flags — -y, --yes, -f, --non-interactive in all automated commands
5. Never assume PATH is correct — probe with command -v or use absolute paths

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Environment Detection (run first if unsure)

echo "OS: $(uname -s 2>/dev/null || echo Windows)"
echo "Shell: $SHELL"
echo "Python: $(python --version 2>&1 || python3 --version 2>&1)"
[ -f /.dockerenv ] && echo "Inside Docker"
[ -n "$VIRTUAL_ENV" ] && echo "venv: $VIRTUAL_ENV"
[ -n "$CONDA_DEFAULT_ENV" ] && echo "conda: $CONDA_DEFAULT_ENV"

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Rules by Shell

bash/zsh:

set -euo pipefail
python3 -m pip install package          # not: pip install
rm -rf "${DIR:?'DIR not set'}/"         # safe delete
./script.sh                             # not: script.sh

PowerShell:

$ErrorActionPreference = 'Stop'
$env:VAR                                # not: %VAR% or $VAR
python -m pip install package
.\.venv\Scripts\Activate.ps1

Docker:

docker run --rm python:3.11-slim cmd    # always --rm, always pin version
docker run --rm -v "$(pwd):/app" img    # bash volume mount

SSH (non-interactive):

ssh -o StrictHostKeyChecking=no -o BatchMode=yes -o ConnectTimeout=10 \
    user@host 'bash -s' << 'EOF'
set -euo pipefail
# remote commands here
EOF

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Hard Rules for Claude Code (Agentic Execution)

• No interactive prompts — every command must run to completion without user input
• No sudo in containers — already root; sudo may not exist
• Temp files → /tmp/ not current directory
• Check network before any download (curl -sf URL || exit 1)
• Probe before use: command -v docker || { echo "docker not found"; exit 1; }
• Destructive ops → dry-run first, then execute with explicit path