fa

Leia em português

Say what you want, in plain language. fa puts the shell command on your prompt, you check it, and press Enter.

$ fa show the 3 biggest files here
fa> find . -type f -printf '%s %p\n' | sort -nr | head -3

$ fa quem está escutando na porta 8080
fa> sudo ss -ltnp 'sport = :8080'

The terminal stops being a pile of tools to memorize and becomes a place where you write what you want. Nothing runs until you press Enter: you can edit the line, or erase it to cancel. Both your request and the command go to your shell history, so you learn the commands as you go.

Install

You need Python 3.11+ and bash or zsh.

pipx install fala          # or: uv tool install fala · pip install --user fala
fa --instalar claude       # or codex, agy, pi, anthropic, openai, openrouter, groq, ollama

fa --instalar adds one line to your ~/.bashrc (or ~/.zshrc), saves which model to use, and sends a test request. Open a new terminal and you're done.

Or ask your coding agent: "install fa (github.com/canpse/fala) using my Claude subscription". The instructions it needs are in AGENTS.md and in fa --agente.

Which model

Any of these works. A small, fast model is enough: the job is turning one sentence into one command.

Time per request measured on a 4-core laptop: pi with fa --servico 1.6 s, claude (Haiku) 3.1 s, codex (GPT-6 Luna, low) 4.8 s, agy (Gemini 3.8 Flash Low) 6.3 s.

Change it any time: fa --config provedor=codex modelo=gpt-6-luna. Check it: fa --testar. API keys stay in environment variables, never in the config file.

About subscriptions: claude, codex and agy run the official program you installed and logged into yourself, once per request, with no tools enabled. That is ordinary personal use of those programs, but each company sets (and has changed) its own terms. For a team, a server or a product, use an API key.

What goes to the model

Each request sends: the fixed instructions, your current folder path, the names of the files in it (two levels deep, up to 80), and the request. File contents are never sent.

fa --reconhecer is optional and makes answers much better: it records your distribution, tools, network interfaces and running services once, in ~/.config/fa/sistema.txt, and that file goes along with every request. It includes your hostname and local IP addresses. Read or edit it before using a provider you don't trust.

Example packs

fa -r <request> adds network examples to the request (fa -h lists the packs). A pack is a text file of request => command lines with a # flag: x line. Put your own in ~/.config/fa/pacotes/: they are the place to teach fa the hosts, interfaces and habits of your machine.

Commands

fa <request>              command on your prompt, Enter runs it
fa -r <request>           with the network pack
fa --instalar [provider]  set up shell, provider and test
fa --config key=value     change settings · fa --config shows them
fa --testar               show what's in use and send a test request
fa --reconhecer           read this machine once, for better answers
fa --servico              keep pi open as a systemd user service (provider pi)
fa --traduzir <request>   only print the command
fa --agente               instructions for AI agents

Status

Early (0.1.0). Tested on Fedora with bash; zsh support is written but not yet tested. Built-in instructions and messages are in Portuguese; requests work in any language. The tests are in testes/.

License

MIT