sleight-of-hand

A multicall CLI wrapper that transparently extends existing command-line tools with custom subcommands.

How it works

sleight-of-hand is a single Go binary that impersonates other CLI tools via symlinks. When invoked, it checks os.Args[0] to determine which tool it's acting as:

• If it recognizes a custom subcommand, it handles it directly
• Otherwise, it forwards all arguments to the real binary transparently (preserving stdin/stdout/stderr, signals, and exit codes)

Build

cd sleight-of-hand
go build -o sleight-of-hand .

Install

# Install symlinks for all registered tools
./sleight-of-hand install

# Install a specific tool
./sleight-of-hand install gh

# Custom bin directory
./sleight-of-hand install --bin-dir /usr/local/bin

Uninstall

# Remove all symlinks (only removes symlinks pointing to sleight-of-hand)
./sleight-of-hand uninstall

# Remove a specific tool
./sleight-of-hand uninstall gh

Wrapped tools

gh (GitHub CLI)

Custom subcommands:

• gh pr retry <PR#> - Retry all failed CI jobs for a pull request
  • --repo, -R - Specify repository in OWNER/REPO format

All other gh commands are forwarded to the real GitHub CLI.

Adding a new tool

1. Create a package under tools/<name>/
2. Implement func Run(args []string) int
3. Register in internal/dispatch/dispatch.go
4. Run sleight-of-hand install <name>