Open source alternatives to prompt-optimizer
24 open source AI Skills apps to use instead, best rated first.
Top picks
- G

github-ops
Launchgithub-ops is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It manages a GitHub repository with a focus on community health, CI reliability and the experience of contributors. It covers triaging issues by classify
Open source
- O

opensource-pipeline
Launchopensource-pipeline is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It prepares a private project for safe public release through a three-stage pipeline. The fork stage strips secrets from a copy. The sanitise st
Open source
- A

andrej-karpathy-skills
Launchandrej-karpathy-skills is a single CLAUDE.md file from the multica-ai project that is meant to improve how Claude Code behaves on coding tasks. It is derived from Andrej Karpathy's public observations about LLM coding pitfalls. The file dis
Open source
- M

microsoft/markitdown
Launchmarkitdown-mcp is the MCP server package for MarkItDown, Microsoft's tool for converting many file formats to Markdown for language models. It is a lightweight server that runs over stdio, Streamable HTTP or SSE, and exposes one tool, conve
Open source
- O

od-contribute
Launchod-contribute is an agent skill in the OpenDesign project that provides a guided, one-click contribution flow to the OpenDesign repository, written so that people without a coding background can send a real pull request. It is locked to the
Open source
- G

github-deep-research
Launchgithub-deep-research is an agent skill from the DeerFlow project that researches a single GitHub repository in several rounds and writes a report in Markdown. It is for requests that need more than a README summary, such as a comprehensive
Open source
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netdata/netdata#Netdata
Discovery, exploration, reporting and root cause analysis over Netdata metrics

Learn Claude Code
by shareAI-lab - A really interesting analysis of how coding agents like Claude
About prompt-optimizer

prompt-optimizer
Analyze draft prompts, detect intent and missing context, match ECC commands
prompt-optimizer is an agent skill from the ECC collection by affaan-m, listed on skills.sh. It analyses a draft prompt, critiques it, detects the intent and any missing context, matches the task to ECC commands, skills and agents, and outputs a complete optimised prompt that the user can paste and run, with a diagnosis of what was changed and why. It applies when a user asks to optimise, improve or rewrite a prompt, asks for help writing a better prompt for a task, asks how to phrase a request to Claude Code, pastes a draft for feedback, says they do not know how to prompt for something, or asks how to use ECC for a task. The listing includes Chinese-language triggers as well. It also explicitly invokes /prompt-optimize. The skill is for improving the prompt the user will send, so the work is done before the prompt is run. A skill is a SKILL.md file of instructions that an AI agent loads when a task calls for it. It is free and open source, and the skills.sh listing shows all three security audits passing.
- Price
- Free
- Made by
- affaan-m
- Category
- AI Skills
- Website
- github.com/affaan-m/ecc/prompt-optimizer











