What is prompt-spellcheck?
prompt-spellcheck is a Claude Code mod by ljmerza that fixes spelling and typos in each typed prompt with a fast model before the main model reads it. It is listed under Interface and has 2 GitHub stars.
| Type | Claude code mod |
|---|---|
| Author | ljmerza |
| Repository | ljmerza/prompt-spellcheck |
| Popularity | 2 GitHub stars |
| Category | Interface |
| Security | Low risk (84/100) |
| Rank | #1,210 of 5,272 Claude Code mods; #466 in Interface |
| License | MIT |
| Last commit | 2026-10-02 |
| Hooks | 3 events |
| Sees | every prompt |
| Draws on | nothing |
Is prompt-spellcheck safe to install?
prompt-spellcheck scores 84/100 on the MCPMods security check: Low risk. Things to review: watches every prompt or event. It passed 6 of 8 checks.
Mod footprints come from claude plugin validate, which lists every event a mod hooks and every API call it makes without running it.
| Check | Result |
|---|---|
| No network access | Pass |
| Starts no processes | Pass |
| Writes no files or config | Pass |
| Doesn't read environment variables | Pass |
| Watches every prompt or event | Review |
| Drives Claude (model calls, prompts) | Note |
| Passes claude plugin validate | Pass |
| Has an open-source license | Pass |
API calls in its code
| Call | What it means |
|---|---|
$.command.register | |
$.model.complete | drives Claude |
$.store.get | keeps its own state |
$.store.set | keeps its own state |
$.ui.toast | draws interface |
How do I install prompt-spellcheck?
- Check your Claude Code version. Mods need Claude Code 2.1.287 or later and are on by default.
claude --version
- Read its footprint. This lists every event it hooks and every API call it makes, without running it.
git clone https://github.com/ljmerza/prompt-spellcheck claude plugin validate ./prompt-spellcheck/plugins/prompt-spellcheck
- Install it. Run this in your terminal, then /reload-plugins in an open session.
claude plugin marketplace add ljmerza/prompt-spellcheck && claude plugin install prompt-spellcheck@prompt-spellcheck
Or ask Claude to set it up
Paste this into Claude Code and it installs prompt-spellcheck for you:
Install the "prompt-spellcheck" Claude Code mod from https://github.com/ljmerza/prompt-spellcheck/tree/main/plugins/prompt-spellcheck. Run claude plugin validate on it first and show me what it can access before you enable it.