Rewrites AI-sounding text so it reads like a person wrote it, without changing what it says.
Humanizer
25 runs/mo
Category
Best Claude skills for Writing3
Writing skills remove the tells that make AI prose obvious (not-X-but-Y contrasts, staged openers, forced triads, filler closers), argue back before you commit to a plan, and hold documentation to a house style. Humanizer and Stop Slop are the two most-searched skills in the whole market.
- 3 skills
- 2 hosted with free runs
- 1 open source from GitHub
Every writing skill
Browse the whole catalog- FreeWriting
- FreeWriting
A skill file that teaches the model to recognise and remove its own writing tells: throat-clearing openers, 'not X but Y' contrasts, dramatic fragments, emphasis crutches, business jargon and padded adverbs.
Stop Slop
25 runs/mo - FreeWriting
Reviews documentation and product prose against 80+ rules from Vercel's writing handbook: clarity, structure, tone, terminology and formatting.
Writing Guidelines (Vercel)
Open source
How writing skills work on SkillGild
Two kinds of listing. Hosted writing skills run through the SkillGild MCP server: your agent follows a written guide and calls server tools, while rendering and file work stay on your machine. Community skills are open-source skill folders maintained in public repositories; SkillGild lists and credits them, and the CLI clones them into your agent's skills folder.
2 hosted skills include free runs every month, so you can try one on a real task before deciding on a plan. Open a skill page to see what it produces, what it needs, how to install it and which clients it supports. New to skills? Read the Claude skills guide or how to install Claude Code skills, then compare options in the best skills roundup.
Questions about writing skills
What is the difference between Humanizer and Stop Slop?
Both remove AI writing patterns. Humanizer is built on Wikipedia's 'Signs of AI writing' list, rewrites the text and runs a second audit pass. Stop Slop is a rules-and-checklist skill with seven core rules organised by phrase, structure and sentence-level issues. Many people install both and run Stop Slop as the final check.
How do I install a writing skill in Claude Code?
Open the skill, copy its install command (skillgild install <slug> --agent claude-code) and run it after skillgild login. Community skills are cloned from their public repository into ~/.claude/skills/; hosted skills get a small wrapper and run through the SkillGild MCP server. Use --agent codex, cursor or gemini-cli for other clients.
Are these writing skills free?
Community skills are free under their own open-source licenses. Hosted SkillGild skills include free monthly runs; paid skills need a purchase or SkillGild Pro. Each listing shows its access and license.