CmdForge

A lightweight personal tool builder for AI-powered CLI commands.

Turn any AI model into a Unix-style pipe command. Build once, use forever.

# Fix grammar in any file
echo "teh cat sat on teh mat" | fix-grammar
# Output: The cat sat on the mat

# Explain errors instantly
cat error.log | explain-error

# Generate commit messages
git diff --staged | commit-msg

# Extract data as validated JSON
echo "Price $49.99, SKU ABC-123" | json-extract --fields "price, sku"
# Output: {"price": 49.99, "sku": "ABC-123"}

Why CmdForge?

• Unix Philosophy - Tools that do one thing well, composable with pipes
• Provider Agnostic - Works with Claude, GPT, Gemini, DeepSeek, local models
• No Lock-in - Your tools are YAML files, your prompts are yours
• Multi-step Pipelines - Chain AI prompts with Python code for validation
• Meta-tools - Tools can call other tools for powerful composition
• 12+ Providers Profiled - We tested them so you don't have to

Try It Now (60 seconds)

See CmdForge in action without installing anything on your system:

# Pull the container
docker pull gitea.brrd.tech/rob/cmdforge:latest

# Run it
docker run -it --rm gitea.brrd.tech/rob/cmdforge bash

# Inside the container - install OpenCode (includes free AI models)
cmdforge providers install   # Select option 4, then 'y'
source ~/.bashrc

# Try it! This explains the README using the free Big Pickle model
cat README.md | eli5

That's it - you just used AI to explain itself. The eli5 tool uses a free model by default, no sign-up required.

Quick Start (Native Install)

For regular use, install natively:

# Clone and install
git clone https://gitea.brrd.tech/rob/CmdForge.git
cd CmdForge
pip install -e .

# Ensure ~/.local/bin is in PATH
export PATH="$HOME/.local/bin:$PATH"

# Install an AI provider (interactive guide)
cmdforge providers install

# Launch the GUI
cmdforge

# Or create your first tool via CLI
cmdforge create summarize

Installation

Native Install

git clone https://gitea.brrd.tech/rob/CmdForge.git
cd CmdForge
pip install -e .

With Development Dependencies

git clone https://gitea.brrd.tech/rob/CmdForge.git
cd CmdForge
pip install -e ".[dev]"

Requirements

• Python 3.10+
• At least one AI CLI tool installed (see Provider Setup)
• PySide6 (included automatically - requires display server on Linux)

Post-Install

Add to your ~/.bashrc or ~/.zshrc:

export PATH="$HOME/.local/bin:$PATH"

Then refresh wrapper scripts:

cmdforge refresh

Usage

GUI Mode (Recommended for Beginners)

cmdforge

Opens the graphical interface where you can create and manage tools visually. Features include:

• My Tools - Browse, create, edit, and delete tools organized by category
• Registry - Search and install community tools from the CmdForge registry
• Providers - Manage AI provider configurations

CLI Mode

# Tool Management
cmdforge list              # List all tools
cmdforge create mytool     # Create new tool
cmdforge edit mytool       # Edit in $EDITOR
cmdforge delete mytool     # Delete tool
cmdforge run mytool        # Run a tool
cmdforge test mytool       # Test with mock provider
cmdforge check mytool      # Check dependencies (meta-tools)
cmdforge refresh           # Update executable wrappers
cmdforge docs mytool       # View/create tool documentation

# Registry
cmdforge registry search "keyword"    # Search for tools
cmdforge registry install owner/tool  # Install a tool
cmdforge registry publish mytool      # Publish your tool
cmdforge registry status              # Check moderation status
cmdforge registry my-tools            # List your published tools

# Collections (curated tool bundles)
cmdforge collections list             # List available collections
cmdforge collections info starter     # View collection details
cmdforge collections install starter  # Install all tools in a collection

# Project Dependencies
cmdforge init                         # Create cmdforge.yaml manifest
cmdforge add owner/tool               # Add tool as dependency
cmdforge install                      # Install all dependencies
cmdforge deps                         # Check dependency status

# Configuration
cmdforge config show                  # Show current config
cmdforge config connect username      # Connect to registry account
cmdforge config disconnect            # Disconnect from registry

Running Tools

Once created, tools work like any Unix command:

# Direct invocation
mytool -i input.txt -o output.txt

# Pipe input (most common)
cat file.txt | mytool

# With arguments
echo "hello" | translate --lang French

# Preview without calling AI
cat file.txt | mytool --dry-run

# Test with mock provider
cat file.txt | mytool --provider mock

Composing Tools

CmdForge follows Unix philosophy: each tool does one thing well, and tools chain together for complex workflows.

# Chain CmdForge together
cat error.log | log-errors | summarize | translate --lang Spanish

# Code review pipeline: focus on changes, review, then summarize
git diff | diff-focus | review-code | tldr

# Extract data, convert format, analyze
cat report.pdf | json-extract --fields "revenue, costs, date" | json2csv | csv-insights

# Process text through multiple transformations
cat technical_doc.txt | simplify | fix-grammar | tone-shift --tone friendly

# Generate code, validate it, then explain what it does
echo "parse CSV and calculate averages" | code-validate | explain-code

Mix with standard Unix tools:

# Extract emails, deduplicate, count
cat inbox.txt | extract-emails | sort -u | wc -l

# Find errors in multiple logs, explain them
cat *.log | grep -i error | explain-error

# Generate changelog for specific author
git log --author="rob" --oneline | changelog > CHANGELOG.md

# Review only large files in a commit
git diff --stat | awk '$3 > 100 {print $1}' | xargs cat | review-code

Build shell functions for common pipelines:

# ~/.bashrc
quick-review() {
    git diff "$@" | diff-focus | review-code --focus "bugs and security" | tldr
}

translate-doc() {
    cat "$1" | summarize | translate --lang "$2"
}

# Usage: quick-review HEAD~3
# Usage: translate-doc manual.txt French

Example Tools

CmdForge comes with 28 pre-built examples you can install:

Text Processing

Tool	Description	Example
summarize	Condense documents	cat article.txt | summarize
translate	Translate text	echo "Hello" | translate --lang Spanish
fix-grammar	Fix spelling/grammar	cat draft.txt | fix-grammar
simplify	Rewrite for clarity	cat legal.txt | simplify --level "5th grade"
tone-shift	Change tone	cat email.txt | tone-shift --tone professional
eli5	Explain like I'm 5	cat quantum.txt | eli5
tldr	One-line summary	cat readme.txt | tldr
expand	Expand bullet points	cat notes.txt | expand

Developer Tools

Tool	Description	Example
explain-error	Explain stack traces	cat error.log | explain-error
explain-code	Explain what code does	cat script.py | explain-code
review-code	Quick code review	cat pr.diff | review-code --focus security
gen-tests	Generate unit tests	cat module.py | gen-tests --framework pytest
docstring	Add docstrings	cat functions.py | docstring
commit-msg	Generate commit message	git diff --staged | commit-msg

Data Tools

Tool	Description	Example
json-extract	Extract as validated JSON	cat text.txt | json-extract --fields "name, email"
json2csv	Convert JSON to CSV	cat data.json | json2csv
extract-emails	Extract email addresses	cat page.html | extract-emails
extract-contacts	Extract contacts as CSV	cat notes.txt | extract-contacts
sql-from-text	Natural language to SQL	echo "get active users" | sql-from-text
safe-sql	SQL with safety checks	echo "delete old records" | safe-sql
parse-log	Analyze log files	cat app.log | parse-log --focus errors
csv-insights	Analyze CSV data	cat sales.csv | csv-insights --question "trends?"

Advanced Multi-Step Tools

Tool	Description	Pattern
log-errors	Extract & explain errors from huge logs	Code→AI
diff-focus	Review only added lines	Code→AI
changelog	Git log to formatted changelog	Code→AI→Code
code-validate	Generate syntax-checked Python	AI→Code

Install Example Tools

# Run the example installer (from the CmdForge directory)
python examples/install.py
cmdforge refresh

Providers

CmdForge works with any AI CLI tool. We've profiled 12 providers:

Provider	Speed	Accuracy	Cost	Best For
opencode-deepseek	13s	4/4	Cheap	Best value - daily use
opencode-pickle	13s	4/4	FREE	Best free - accurate
claude-haiku	14s	4/4	Paid	Fast + accurate
codex	14s	4/4	Paid	Reliable
claude-opus	18s	4/4	$	Highest quality
gemini	91s	3/4	Paid	Large docs (1M tokens)

See Provider Setup for setup instructions.

Tool Anatomy

A tool is a YAML config file in ~/.cmdforge/<name>/config.yaml:

name: summarize
description: Condense documents to key points
category: Text  # Optional: Text, Developer, Data, or Other
arguments:
  - flag: --length
    variable: length
    default: "3-5 bullet points"
steps:
  - type: prompt
    prompt: |
      Summarize this text into {length}:

      {input}      
    provider: opencode-pickle
    output_var: response
output: "{response}"

Categories

Tools can be organized into categories for easier navigation in the UI:

Category	Description
Text	Text processing (summarize, translate, grammar)
Developer	Dev tools (explain-error, gen-tests, commit-msg)
Data	Data extraction and conversion (json-extract, csv)
Other	Default for uncategorized tools

Multi-Step Tools

Chain AI prompts with Python code for powerful workflows:

name: json-extract
description: Extract data as validated JSON
steps:
  # Step 1: AI extracts data
  - type: prompt
    prompt: "Extract {fields} as JSON from: {input}"
    provider: opencode-deepseek
    output_var: raw_json

  # Step 2: Code validates JSON
  - type: code
    code: |
      import json
      try:
          parsed = json.loads(raw_json)
          validated = json.dumps(parsed, indent=2)
      except:
          validated = "ERROR: Invalid JSON"      
    output_var: validated
output: "{validated}"

Meta-Tools (Tools Calling Tools)

Tools can call other tools as steps, enabling powerful composition:

name: summarize-and-translate
description: Summarize text then translate the summary
dependencies:
  - official/summarize
  - official/translate
steps:
  - type: tool
    tool: official/summarize
    input: "{input}"
    args:
      max_words: "100"
    output_var: summary

  - type: tool
    tool: official/translate
    input: "{summary}"
    args:
      target_language: "{language}"
    output_var: translated
output: "{translated}"

Check dependencies before running: cmdforge check my-meta-tool

See Meta-Tools Design for full documentation.

Variables

Variable	Description
{input}	The piped/file input
{argname}	Custom argument value
{output_var}	Output from previous step (prompt, code, or tool)

Project Dependencies

For projects that use multiple CmdForge tools, you can declare dependencies in a cmdforge.yaml manifest:

# cmdforge.yaml
name: my-project
description: My awesome project
dependencies:
  - official/summarize
  - official/translate
  - myuser/custom-tool@^1.0.0

Managing Dependencies

# Initialize a new manifest
cmdforge init

# Add a dependency
cmdforge add official/summarize
cmdforge add myuser/tool@^2.0.0    # With version constraint

# Install all dependencies
cmdforge install

# Check dependency status
cmdforge deps

This ensures all required tools are available before running your project's scripts.

Collections

Collections are curated bundles of related tools. Install an entire workflow with one command:

# List available collections
cmdforge collections list

# View what's in a collection
cmdforge collections info starter
# Output:
#   starter - Essential tools for getting started
#   Tools: summarize, translate, fix-grammar, explain-error, commit-msg
#   Total: 5 tools

# Install all tools in a collection
cmdforge collections install starter

Available Collections

Collection	Description	Tools
starter	Essential tools for beginners	5
developer	Code review and development	8
writer	Writing and editing tools	6
data	Data extraction and conversion	7

Registry

The CmdForge Registry at cmdforge.brrd.tech hosts community tools.

Searching Tools

# Basic search
cmdforge registry search "summarize"

# Filter by category
cmdforge registry search --category Developer

# Sort by popularity
cmdforge registry search --sort downloads

# Show only new tools (last 7 days)
cmdforge registry search --new

# Advanced filters
cmdforge registry search --owner official --min-downloads 100

Publishing Tools

# Connect your account (opens browser for authentication)
cmdforge config connect yourusername

# Publish a tool
cmdforge registry publish mytool

# Check moderation status
cmdforge registry status
# Output:
#   mytool: pending (submitted 2 hours ago)
#   other-tool: approved

# Sync moderation feedback to your local tool
cmdforge registry status --sync

Published tools go through moderation before appearing publicly. You'll receive feedback if changes are requested.

Tool Documentation

Each tool can have its own README:

# View tool documentation
cmdforge docs mytool

# Create/edit documentation (opens in $EDITOR)
cmdforge docs mytool --edit

The documentation is stored as README.md in the tool's directory (~/.cmdforge/mytool/README.md).

Shell Integration

Git Hooks

# .git/hooks/prepare-commit-msg
#!/bin/bash
git diff --cached | commit-msg > "$1"

Aliases

# ~/.bashrc
alias gc='git diff --staged | commit-msg'
alias wtf='explain-error'
alias fixme='fix-grammar'

Vim Integration

" Fix grammar in selection
vnoremap <leader>fg :!fix-grammar<CR>

" Explain selected code
vnoremap <leader>ec :!explain-code<CR>

GUI Features

The graphical interface provides a modern desktop experience:

My Tools Page

• View all your tools organized by category (Text, Developer, Data, Other)
• Double-click a tool to edit it
• Create new tools with the built-in Tool Builder
• Connect to the registry to publish your tools

Tool Builder

• Visual form for creating and editing tools
• Add arguments with flags and default values
• Add prompt steps (AI calls) with profile selection
• Add code steps with AI-assisted code generation:
  • Split view: code editor + AI assist panel
  • Describe what you want and generate Python code
  • Shows available variables from arguments and previous steps
  • Automatic markdown fence stripping from AI responses

Registry Browser

• Browse all tools on page load (no search required)
• Search by name, description, or keyword
• Filter by category (Text, Developer, Data, Other)
• Sort by popularity, rating, newest, or name
• Star ratings displayed in results and details
• Clickable tags to filter by tag
• Installed indicator (✓) shows which tools you have
• Update available (↑) when newer version exists
• Pagination for browsing large result sets
• Publisher info showing reputation and total downloads

Provider Management

• Add and configure AI providers
• Test provider connectivity
• Set default providers for new tools

Profiles (AI Personas)

• Built-in profiles: Comedian, Technical Writer, Teacher, Concise, Creative, Code Reviewer, Analyst
• Custom profiles: Create your own personas with custom system prompts
• Profile selector: Choose a profile when adding prompt steps to tools
• Automatic injection: Profile system prompts are prepended to your prompts during execution

Keyboard Shortcuts

Shortcut	Action
Ctrl+N	Create new tool
Ctrl+S	Save tool (in builder)
Ctrl+R	Refresh current page
Ctrl+1	Go to My Tools
Ctrl+2	Go to Registry
Ctrl+3	Go to Providers
Ctrl+4	Go to Profiles
Escape	Close tool builder
Ctrl+Q	Quit application

Multi-Step Tool Patterns

CmdForge supports powerful multi-step workflows combining AI and code:

Code → AI

Extract or transform data with Python, then pass to AI:

steps:
  - type: code
    code: |
      # Extract just the error lines
      errors = [l for l in input_text.split('\n') if 'error' in l.lower()]
      result = '\n'.join(errors[-10:])  # Last 10 errors      
    output_var: errors
  - type: prompt
    prompt: "Explain these errors:\n{errors}"
    output_var: explanation

AI → Code

Generate content with AI, then validate/process with Python:

steps:
  - type: prompt
    prompt: "Generate Python code to: {input}"
    output_var: generated
  - type: code
    code: |
      import ast
      try:
          ast.parse(generated)  # Syntax check
          result = generated
      except SyntaxError as e:
          result = f"# Syntax Error: {e}\n{generated}"      
    output_var: validated

Philosophy

CmdForge is built on Unix philosophy:

1. Do one thing well - Each tool solves one problem. summarize summarizes. translate translates. No bloated mega-tools.

2. Compose freely - Tools read stdin, write stdout. Chain them: cat doc.txt | summarize | translate --lang French

3. Text is the interface - No proprietary formats. Pipe text in, get text out. Works with grep, awk, sed, and every other Unix tool.

4. You own everything - Tools are YAML files. Prompts are plain text. No vendor lock-in, no cloud dependency for your tool definitions.

5. Swap parts freely - Change AI providers per-tool or per-run. Today's best model might not be tomorrow's.

Contributing

git clone https://gitea.brrd.tech/rob/cmdforge.git
cd cmdforge
pip install -e ".[dev]"
pytest

Support

If CmdForge saves you time, consider supporting the project:

Bitcoin: 3KeLqGv2Xo8jGYkqA1i68a6nXwgQnuJoza

Questions? robdickson444@hotmail.com

License

MIT - Use it, modify it, share it.

Docker

Pre-installed Container (Recommended)

Ready-to-use container with CmdForge and 27 example tools pre-installed:

# Build from source
docker build -f Dockerfile.ready -t cmdforge-ready .

# Run interactively
docker run -it --rm cmdforge-ready

# With persistent storage (keeps your tools between runs)
docker run -it --rm -v cmdforge-data:/home/user/.cmdforge cmdforge-ready

Inside the container, CmdForge is ready to use:

cmdforge list            # See 27 pre-installed tools
cmdforge                 # Launch the GUI (requires display)
cmdforge run summarize   # Run a tool

Test Installation Container

Simulates a fresh computer for testing the installation process:

# Build the test container
docker build -f Dockerfile.test-install -t cmdforge-test-install .

# Run interactively
docker run -it --rm cmdforge-test-install

# Inside the container - run the installer
cd ~/CmdForge
./install.sh

Interactive Installer

The install.sh script provides guided installation:

./install.sh              # Full interactive install
./install.sh --yes        # Non-interactive (accept defaults)
./install.sh --no-venv    # Install without virtual environment
./install.sh --no-examples # Skip installing example tools

Features:

• Creates virtual environment at ~/.cmdforge-venv
• Configures PATH in your shell config (bash/zsh/fish)
• Optionally installs 27 example tools
• Works on macOS and Linux

Legacy Container

The original docker-compose setup still works:

# Build the container
docker-compose build

# Run tests
docker-compose run --rm test

# Use the CLI
docker-compose run --rm cli cmdforge list

# Interactive shell
docker-compose run --rm shell

Installing AI Providers in Docker

AI providers require browser-based authentication. You need display access for the browser to open.

Using the pre-built container:

# Allow Docker to access your display (Linux)
xhost +local:docker

# Run with display access and persistent storage
docker run -it --rm \
  -e DISPLAY=$DISPLAY \
  -v /tmp/.X11-unix:/tmp/.X11-unix \
  -v cmdforge-data:/root/.cmdforge \
  --network host \
  gitea.brrd.tech/rob/cmdforge bash

# Inside the container:
cmdforge providers install

Using docker-compose (build from source):

xhost +local:docker
docker-compose run --rm setup

# Inside the container:
cmdforge providers install

After installing a provider:

# Test the provider works
cmdforge providers test claude

Available Providers:

#	Provider	Cost	Notes
1	Claude	Pay-per-use	Anthropic account
2	Codex	Pay-per-use	OpenAI account
3	Gemini	Free tier	Google account
4	OpenCode	Free tier	Multiple models
5	Ollama	FREE	Local, no internet

Links

User Documentation

• Provider Setup
• Example Tools
• User Wiki

Developer Documentation

• Project Overview - Start here to understand the codebase
• Design Document
• Meta-Tools Design - Tools that call other tools
• Collections - Curated tool bundles
• Registry API Design
• Web UI Design