How-to · Writing · By Product Management Skills by Pawel Huryn

How to use Grammar & Flow Check in your AI agent

Install and use the Grammar & Flow Check skill in Claude Code, Cursor, Codex, Gemini CLI, OpenCode, and Windsurf — with sample prompts.

What you'll get

This skill reviews your writing for grammar errors, logical gaps, and flow issues, then gives you targeted suggestions to fix each problem. Perfect for polishing PRDs, marketing copy, emails, or any important document before you hit send. The AI points out what's wrong and how to fix it—you stay in control of your voice.

Step 1 — Get the skill source URL

The Grammar & Flow Check skill lives at:

Open ↗

Step 2 — Add it to your AI agent

Copy one of these prompts and paste it into your AI tool. The agent will fetch and install the skill for you.

Claude Code

Add the agent skill from https://github.com/phuryn/pm-skills/tree/main/pm-toolkit/skills/grammar-check to my project.

Cursor

Install this agent skill: https://github.com/phuryn/pm-skills/tree/main/pm-toolkit/skills/grammar-check

Codex

Add this skill to .codex/skills/: https://github.com/phuryn/pm-skills/tree/main/pm-toolkit/skills/grammar-check

Gemini CLI

Add the skill at https://github.com/phuryn/pm-skills/tree/main/pm-toolkit/skills/grammar-check to my .gemini/skills/ directory.

OpenCode

Install this agent skill from https://github.com/phuryn/pm-skills/tree/main/pm-toolkit/skills/grammar-check

Windsurf

Add this skill: https://github.com/phuryn/pm-skills/tree/main/pm-toolkit/skills/grammar-check

Step 3 — Try these prompts

Once the skill is installed, ask your AI things like:

  • Finalizing a PRD, pitch deck, or important email and want a fresh set of eyes
  • Polish marketing copy or product messaging before launch
  • Reviewing a draft and want to catch errors without losing your voice
  • Ensure your writing is clear, professional, and aligned with your goal

What this skill does

  • Identifies grammar errors like typos, punctuation mistakes, and tense inconsistencies
  • Flags logical problems such as unsupported claims, contradictions, or vague statements
  • Spots flow issues including choppy transitions, passive voice overuse, and unclear pronouns
  • Provides specific fix suggestions with location, rationale, and priority level
  • Checks tone alignment with your objective (persuade investors, onboard users, etc.)
SkillGrammar & Flow Check
Made byProduct Management Skills by Pawel Huryn
CategoryWriting
SourceView original ↗