Mcfly

mcfly Plugin

Smart shell history search. Replaces Ctrl+R with neural ranking that learns from context, frequency, and recency.

Commands

Search

• mcfly history search <query> — Search shell history with neural ranking

Manage

• mcfly history dump — Dump all shell history entries
• mcfly history train — Train mcfly model on current history

Usage Examples

• "Find that docker command I ran yesterday"
• "Search my history for git rebase commands"
• "Dump my entire shell history"
• "Train mcfly on my history"

Installation

cargo install mcfly

For shell integration, add to your .bashrc:

eval "$(mcfly init bash)"

Examples

# Search history for a command
mcfly search docker compose

# Dump all history (json lines)
mcfly dump

# Train on history
mcfly train --train-all

# Shell integration (in .bashrc)
eval "$(mcfly init bash)"

Key Features

• Neural network ranking for relevant results
• Works with bash, zsh, and fish
• Time-based and frequency-based ranking
• Fuzzy matching
• Lightweight and fast (Rust)
• Session-aware history context