fixr-cli 0.1.3

AI-powered CLI that explains programming errors using a persistent cache and LLMs.

fixr ⚡

AI-powered CLI that explains errors and suggests fixes — using a hashtable cache + LLM hybrid.

pip install fixr-cli

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How it works

your error
    │
    ▼
SHA256 cache lookup ─> hit ─> instant fix ⚡ (no LLM call)
    │
   miss
    ▼
LiteLLM → Groq / Gemini / Mistral / OpenAI / Anthropic / ...
    │
    ▼
cache result → show fix

Identical errors are resolved instantly from cache. The tool gets faster the more you use it.

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Usage

# Run any file — fxr captures the error automatically
fxr script.py
fxr main.rs
fxr app.js
fxr main.cpp
fxr Main.java
fxr main.go

# Paste an error directly
fxr "TypeError: unsupported operand type(s) for +: 'int' and 'str'"

# Pipe any command
python script.py 2>&1 | fxr
cargo build 2>&1 | fxr

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Setup

# 1. Install
pip install fixr-cli
# or
uv add fixr-cli

# 2. Run setup wizard (select provider, model, paste API key)
fxr setup

Setup takes 30 seconds. Free API keys work — no credit card needed.

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Free Tier Providers

Provider	Free API	Speed
Groq	✅	⚡⚡ Faster (free)
Cerebras	✅	⚡ Fast (free)
Gemini	✅	✅ Good
Mistral	✅	✅ Good
OpenRouter	✅	✅ Good
Ollama	✅ Local	Depends on hardware
OpenAI	❌ Paid	⚡⚡⚡ Fastest overall
Anthropic	❌ Paid	⚡ Fast

Default: Groq → llama-3.3-70b-versatile

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Commands

fxr setup                              # interactive setup wizard
fxr providers                          # list all providers + models
fxr config --show                      # show current config
fxr config --provider groq --api-key   # set API key
fxr add-model <provider> <model>       # add custom model
fxr clear-cache                        # wipe local cache

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Languages Supported

Python · JavaScript · TypeScript · Rust · C · C++ · Java · Go · Ruby · PHP · Bash · Lua · Perl · R · Swift · Kotlin

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Architecture

fixr/
├── main.py       # Typer CLI — commands + cli() entrypoint
├── cache.py      # SHA256 hashtable — ~/.fixr/cache.json
├── llm.py        # LiteLLM routing — 10+ providers
├── config.py     # Config store — ~/.fixr/config.json
└── auth.py       # API key storage + OAuth scaffold

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Stack

Python · Typer · LiteLLM · Rich · Hatchling · uv

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License

MIT