keprompt 0.9.1

A prompt engineering tool for large language models

KePrompt

A powerful prompt engineering and LLM interaction tool designed for developers, researchers, and AI practitioners to streamline communication with various Large Language Model providers.

Overview

KePrompt provides a flexible framework for crafting, executing, and iterating on LLM prompts across multiple AI providers.

Philosophy

• A domain-specific language allows for easy prompt definition and development.
• This is translated into a universal prompt structure upon which the code is implemented.
• Different company interfaces translate universal prompt structure to company specific prompts and back.

Features

• Multi-Provider Support: Interfaces with Anthropic, OpenAI, Google, MistralAI, XAI, DeepSeek, and more
• Prompt Language: Simple yet powerful DSL for defining prompts
• Function Calling: Integrated tools for file operations, web requests, and user interaction
• API Key Management: Secure storage of API keys via system keyring
• Rich Terminal Output: Terminal-friendly visuals with color-coded responses
• Logging: Automatic conversation and response logging
• Cost Tracking: Token usage and cost estimation for API calls
• Extensive Debugging Support: different debugging options to aid in Prompt development
• File Versioning: Renames files adding version number instead of overwriting to aid in development

Installation

# Install from PyPI
pip install keprompt

# Install from source
git clone https://github.com/yourusername/keprompt.git
cd keprompt
poetry install

Quick Start

#!/bin/bash

# Create prompts directory if it doesn't exist
mkdir -p prompts

# Write content to Test.prompt
cat > prompts/Test.prompt << 'EOL'
.# Make snake program with gpt-4o
.llm "model": "gpt-4o"
.system
You are to provide short concise answers.
.user
Generate the python code implementing the game of snake, and write the code to the file snake.py using the provided writefile function.
.exec
EOL

echo "Created prompts/Test.prompt successfully."

keprompt -e Test --debug Messages

Output

(keprompt-py3.10) jerry@desktop:~/PycharmProjects/keprompt$ keprompt -e Test --debug Messages
╭──Test.prompt───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│00 .#       Make snake program with gpt-4o                                                                                                                                                                                                  │
│01 .llm     "model": "gpt-4o"                                                                                                                                                                                                               │
│02 .system  You are to provide short concise answers.                                                                                                                                                                                       │
│03 .user    Generate the python code implementing the game of snake, and write the code to the file snake.py using the provided writefile function.                                                                                         │
│04 .exec    Calling OpenAI::gpt-4o

│╭─── Messages Sent to gpt-4o ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮│
││ system    Text(You are to provide short concise answers.)                                                                                                                                                                                ││
││ user      Text(Generate the python code implementing the game of snake, and write the code to the file snake.py using the provided writefile function.)                                                                                  ││
│╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯│
│            Call-01 Elapsed: 17.14 seconds 0.00 tps                                                                                                                                                                                          
│
│╭─── Messages Sent to gpt-4o ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮│
││ system    Text(You are to provide short concise answers.)                                                                                                                                                                                ││
││ user      Text(Generate the python code implementing the game of snake, and write the code to the file snake.py using the provided writefile function.)                                                                                  ││
││ assistant Call writefile(id=call_O2R056UlBxXZfzBXs7ESAjk7, "filename": "snake.py", "content": "import pygame\nimport time...")                                                                                                           ││
││ tool      Rtn  writefile(id=call_O2R056UlBxXZfzBXs7ESAjk7, content:Content written to file './snake.py')                                                                                                                                 ││
│╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯│
│            Call-02 Elapsed: 1.08 seconds 0.00 tps                                                                                                                                                                                           
│
│╭─── Messages Received from gpt-4o ────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮│
││ system    Text(You are to provide short concise answers.)                                                                                                                                                                                ││
││ user      Text(Generate the python code implementing the game of snake, and write the code to the file snake.py using the provided writefile function.)                                                                                  ││
││ assistant Call writefile(id=call_O2R056UlBxXZfzBXs7ESAjk7, "filename": "snake.py", "content": "import pygame\nimport time...")                                                                                                           ││
││ tool      Rtn  writefile(id=call_O2R056UlBxXZfzBXs7ESAjk7, content:Content written to file './snake.py')                                                                                                                                 ││
││ assistant Text(The Snake game code has been successfully written to the file `snake.py`. You can run it using Python to play the game!)                                                                                                  ││
│╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯│
│04 .exec    18.31 secs output tokens 0 at 0.00 tps                                                                                                          │
│04 .exec   Tokens In=0($0.0000), Out=0($0.0000) Total=$0.0000                                                                                                                                                                              │
╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
Wrote logs/Test.svg to disk

Command Line Options

keprompt [-h] [-v] [--param key value] [-m] [-f] [-p [PROMPTS]] [-c [CODE]] [-l [LIST]] [-e [EXECUTE]] [-k] [-d {Statements,Prompt,LLM,Functions,Messages} [...]] [-r]

Option	Description
-h, --help	Show help message and exit
-v, --version	Show version information and exit
--param key value	Add key/value pairs for substitution in prompts
-m, --models	List all available LLM models
-f, --functions	List all available functions that can be called
-p, --prompts [PATTERN]	List available prompt files (default: all)
-c, --code [PATTERN]	Show prompt code/commands in files
-l, --list [PATTERN]	List prompt file content line by line
-e, --execute [PATTERN]	Execute one or more prompt files
-k, --key	Add or update API keys for LLM providers
-d, --debug {Statements,Prompt,LLM,Functions,Messages}	Enable debug output for specific components
-r, --remove	Remove all backup files with .nn pattern

Prompt Language

keprompt uses a simple line-based language for defining prompts. Each line either begins with a command (prefixed with .) or is treated as content. Here are the available commands:

Command	Description
.#	Comment (ignored)
.assistant	Define assistant message
.clear ["pattern1", ...]	Delete files matching pattern(s)
.cmd function(arg=value)	Execute a predefined function
.debug ["element1", ...]	Display debug information
.exec	Execute the prompt (send to LLM)
.exit	Exit execution
.image filename	Include an image in the message
.include filename	Include text file content
.llm {options}	Configure LLM (model, temperature, etc.)
.system text	Define system message
.text text	Add text to the current message
.user text	Define user message

Variable Substitution

You can use <<variable>> syntax for substituting variables in prompts. Variables can be defined using the --param option.

Available Functions

keprompt provides several built-in functions that can be called from prompts:

Function	Description
readfile(filename)	Read content from a file
writefile(filename, content)	Write content to a file
write_base64_file(filename, base64_str)	Write decoded base64 content to a file
wwwget(url)	Fetch content from a web URL
execcmd(cmd)	Execute a shell command
askuser(question)	Prompt the user for input

Supported LLM Providers

• Anthropic: Claude models
• OpenAI: GPT models including GPT-4o
• Google: Gemini models
• MistralAI: Mistral, Small, Large models
• XAI: Grok models
• DeepSeek: DeepSeek Chat and Reasoner models

Execute following command to see supported models:

keprompt -m

Here an old example output:

                            Available Models                             
┏━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━━━┓
┃ Company   ┃ Model                    ┃ Max Token ┃ $/mT In ┃ $/mT Out ┃
┡━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━━━┩
│ Anthropic │ claude-3-5-haiku-latest  │      8192 │  0.1500 │   4.0000 │
│           │ claude-3-5-sonnet-latest │      8192 │  3.0000 │  15.0000 │
│           │ claude-3-7-sonnet-latest │      8192 │  3.0000 │  15.0000 │
│ DeepSeek  │ deepseek-chat            │     65536 │  0.1400 │   0.2800 │
│           │ deepseek-reasoner        │     65536 │  0.1400 │   0.2800 │
│ Google    │ gemini-1.5-flash         │      8192 │  0.0000 │   0.0000 │
│           │ gemini-1.5-flash-8b      │      8192 │  0.0000 │   0.0000 │
│           │ gemini-2.0-flash-exp     │      8192 │  0.0000 │   0.0000 │
│ MistralAI │ codestral-latest         │     32000 │  0.3000 │   0.9000 │
│           │ ministral-3b-latest      │     32000 │  0.0400 │   0.0400 │
│           │ ministral-8b-latest      │     32000 │  0.1000 │   0.1000 │
│           │ mistral-large-latest     │     32000 │  2.0000 │   6.0000 │
│           │ mistral-small-latest     │     32000 │  0.2000 │   0.6000 │
│           │ pixtral-12b              │     32000 │  0.1500 │   0.1500 │
│           │ pixtral-large-latest     │     32000 │  0.2000 │   0.6000 │
│ OpenAI    │ gpt-4o                   │    128000 │  5.0000 │  20.0000 │
│           │ gpt-4o-2024-05-13        │    128000 │  5.0000 │  15.0000 │
│           │ gpt-4o-2024-08-06        │    128000 │  5.0000 │  20.0000 │
│           │ gpt-4o-mini              │    128000 │  0.1500 │   0.6000 │
│           │ gpt-4o-mini-2024-07-18   │    128000 │  0.1500 │   0.6000 │
│           │ o1                       │    128000 │  3.0000 │  12.0000 │
│           │ o1-mini                  │    128000 │  0.6000 │   2.4000 │
│           │ o3-mini                  │    128000 │  1.1000 │   4.4000 │
│ XAI       │ grok-2-latest            │    131072 │  2.0000 │  10.0000 │
│           │ grok-2-vision-latest     │      8192 │  2.0000 │  10.0000 │
│           │ grok-beta                │    131072 │  5.0000 │  15.0000 │
│           │ grok-vision-beta         │      8192 │  5.0000 │  15.0000 │
└───────────┴──────────────────────────┴───────────┴─────────┴──────────┘

Example Usage

Basic Prompt Execution

# Create a prompt file
cat > prompts/example.prompt << EOL
.llm {"model": "claude-3-7-sonnet-latest"}
.system You are a helpful assistant.
.user Tell me about prompt engineering.
.exec
EOL

# Execute the prompt
keprompt -e example --debug Messages

Using Variables

# Create a prompt with variables
cat > prompts/greeting.prompt << EOL
.llm {"model": "<<model>>"}
.user Hello! My name is <<name>>.
.exec
EOL

# Execute with variables
keprompt -e greeting --param name "Alice" --param model "claude-3-7-sonnet-latest"  --debug Messages

Using Functions

# Create a prompt that uses functions
cat > prompts/analyze.prompt << EOL
.llm {"model": "claude-3-7-sonnet-latest"}
.user Analyze this text:
.cmd readfile(filename="data.txt")
.exec
EOL

# Execute the prompt
keprompt -e analyze  --debug Messages

Working with Prompts

1. Create prompt files in the prompts/ directory with .prompt extension
2. List available prompts with keprompt -p
3. Examine prompt content with keprompt -l promptname
4. Execute prompts with keprompt -e promptname
5. Debug execution with keprompt -e promptname -d Messages LLM

Output and Logging

keprompt automatically saves conversation logs to the logs/ directory:

• logs/promptname.log: Text log of the interaction
• logs/promptname.svg: SVG visualization of the conversation
• logs/promptname_messages.json: JSON format of all messages

API Key Management

# Add or update API key
keprompt -k
# Select provider from the menu and enter your API key

Advanced Usage

Debugging Options

# Debug LLM API calls
This will give a full dump opn the screen of the data structure sent to API, and a full dump of its response.
 
keprompt -e example -d LLM

# Debug function calls
keprompt -e example -d Functions

# Debug everything
keprompt -e example -d Statements Prompt LLM Functions Messages

Working with Multiple Prompts

# Execute all prompts matching a pattern
keprompt -e "test*"

# List all prompts with "gpt" in the name
keprompt -p "*gpt*"

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT