Prompt Master
nidhinjs/prompt-master
Prompt Master is a free, MIT-licensed Claude skill that writes prompts for other AI tools. It detects the target tool, pulls out nine dimensions of intent, asks at most three questions, picks a prompt structure, trims every word that does not change the output and hands back one copyable block. It covers coding agents, chat models, image, video and voice tools, and automation platforms.
Facts checked on against the sources listed at the end of this page.
- GitHub stars
- 14,437
- Skills in the pack
- 1
- Agents supported
- 2the prompts it writes target many other tools
- License
- MIT
- Last commit
- 1 day ago12 October 2026
- Instruction size
- 4.9k wordsacross its SKILL.md file
How to install Prompt Master
| Agent | Command | Copy |
|---|---|---|
| Claude.ai | Download the repo as a ZIP, then open Customize, Skills and Upload a Skill. This is the route the README recommends. | |
| Claude Code | The README marks this route as not suggested. Run it with /prompt-master. |
Commands as given in the README on 14 October 2026.
What Prompt Master runs on your machine
- Hooks
- None found in the repo.
- Bundled scripts
- None found in the repo.
- Network calls
- None in the skill files. The README says it can check model details against provider docs when a request depends on the latest models.
- API keys needed
- None.
These are facts read from the repo, not a security rating. Read the files before you install any skill.
What is inside Prompt Master
| Skill or command | What it makes the agent do |
|---|---|
| prompt-master | The single skill. Routes to the right prompt structure for the target tool and returns one prompt plus a one-line strategy note. |
| references | Templates and a list of 35 prompt patterns that waste credits, loaded as needed. |
The repo has one root SKILL.md with a references folder. The 35-pattern count and the version history come from the README.
A good fit for
- People who prompt several AI tools and want each prompt shaped for its target
- Developers who brief coding agents like Cursor or Claude Code and want fewer re-prompts
- Image and video prompt writers using Midjourney, Stable Diffusion or ComfyUI
- Anyone who wants a weak prompt rewritten with the reasoning shown in one line
Skip it if
- Anyone who prefers to write prompts by hand and only wants a checklist
- Work where the tool has no prompt to tune, since the skill is only about prompts
- Claude Code users who expect a plugin install, because the README marks the clone route as not suggested
How Prompt Master works
The pipeline runs silently: detect the tool, extract intent, ask up to three clarifying questions, apply a framework, audit for token waste and deliver. It also keeps a memory block of earlier decisions, such as stack and naming rules, so a later prompt does not contradict them.
The README's version history shows ongoing updates for new models, and it removed techniques it judged likely to produce made-up output, such as tree-of-thought prompting.
- Made by
- nidhinjs
- Topic
- Docs and writing
- Works with
- Claude Code, Claude.ai
How much context Prompt Master uses
| The skill | 4,900 words in its SKILL.md file |
|---|---|
| Loaded at start | Only each skill's name and description. The full text loads when a task needs that skill. |
Word counts are measured from the repo every day. Reference files a skill loads on demand are not counted.
Is Prompt Master still maintained?
| Last commit | , 1 day ago |
|---|---|
| Stars gained in 7 days | Shown after 7 days of tracking |
| Stars gained in 30 days | Shown after 30 days of tracking |
| Open issues and pull requests | 26 |
| Forks | 1,676 |
Tools Prompt Master works with
Questions about Prompt Master
How do I use it?
Ask for a prompt in plain words, for example a prompt for Cursor to refactor an auth module, or run /prompt-master. You can also paste a weak prompt and ask for a fix.
Which tools can it write prompts for?
The README lists chat models, coding agents, image, video and voice tools, and automation platforms such as Zapier and Make.
How many questions does it ask?
At most three, and only when key information is missing.
Is it free?
Yes. It is MIT licensed.
Sources
Something wrong or out of date? Email [email protected] with a link to the source. Stats come from the public GitHub API and update every day.
For the maker
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