> ## Documentation Index > Fetch the complete documentation index at: https://usefulai.com/llms.txt > Use this file to discover all available pages before exploring further. # Best Writing Plugins, Skills, and MCP Servers in 2026 > Research-backed writing skills, plugins, and MCP servers for drafting, editing, style, and translation.
Updated July 26, 2026
These extensions make an agent a genuinely useful writing partner. Drafting workflows run a real writing process instead of one-shot generation, style skills strip the AI tells and hold a standard, and translation servers put professional translation behind the agent. Pick by the job in front of you.
| # | Name | Best for | Est. installs About install estimates | | -----------------------------------------: | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | | 1 | Internal Comms | Status updates and announcements | **120K** | | 2 | Matt Pocock Writing Skills | Article drafting as a guided process | **90K** | | 3 | Doc Co-Authoring | Co-writing docs section by section | **85K** | | 4 | Writing Guidelines | House style the agent actually follows | **50K** | | 5 | Humanizer ZH | De-AI-ing Chinese prose | **45K** | | 6 | Baoyu Translate | Three-pass idiomatic translation | **40K** | | 7 | Humanizer | Stripping AI tells from English prose | **40K** | | 8 | Nature Skills | Academic papers and journal polish | **35K** | | 9 | Lara Translate | Context-aware translation at scale | **30K** | | 10 | Stop Slop | Banning slop phrases outright | **25K** | | 11 | DeepL | Team translation with glossaries | **25K** | | 12 | Crowdin | Localization projects in Crowdin | **20K** |
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Internal Comms logo
## [Internal Comms](https://skills.sh/anthropics/skills/internal-comms) by Anthropic
Status updates and announcements
120Kestimated installs
**What it is** Anthropic's official skill for internal communication: status updates, announcements, and team memos written in a clear, direct voice from the bullet points and context you give it.
**When to use** Recurring team communication you write weekly anyway. It keeps the format consistent and cuts the drafting time; for substantial documents, use Doc Co-Authoring instead.
Install PluginSkill
Matt Pocock Writing Skills logo
## [Matt Pocock Writing Skills](https://skills.sh/mattpocock/skills) by Matt Pocock
Article drafting as a guided process
90Kestimated installs
**What it is** Four separately installable skills that form one long-form writing method: writing-fragments collects your raw material, writing-shape structures it, and writing-beats plans the argument beat by beat - shape and beats are alternative middle stages, pick one per piece - then edit-article rewrites the draft hard.
**When to use** For articles and essays where one-shot generation produces generic output. The stages work individually - edit-article alone is a strong editor - but the full method is what turns notes into a piece with an actual argument.
Install Skill
Doc Co-Authoring logo
## [Doc Co-Authoring](https://skills.sh/anthropics/skills/doc-coauthoring) by Anthropic
Co-writing docs section by section
85Kestimated installs
**What it is** Anthropic's official co-writing skill. It aligns on purpose and audience first, drafts the document section by section, works your feedback in as it goes, and then tests whether a fresh reader would actually understand the result.
**When to use** Workplace documents where structure carries the weight - specs, proposals, decision docs, reports. Less suited to short posts, where the process is more ceremony than help.
Install PluginSkill
Writing Guidelines logo
## [Writing Guidelines](https://skills.sh/vercel-labs/agent-skills/writing-guidelines) by Vercel
House style the agent actually follows
50Kestimated installs
**What it is** Vercel's concrete prose rules packaged as a skill: sentence length, hedging, filler, structure. Instead of editing afterwards, it steers how the agent writes while it writes.
**When to use** When you want a consistent standard across everything the agent produces rather than fixing each draft. Pairs naturally with Humanizer - guidelines steer during, Humanizer cleans after.
Install Skill
Humanizer ZH logo
## [Humanizer ZH](https://skills.sh/op7418/humanizer-zh/humanizer-zh) by op7418
De-AI-ing Chinese prose
45Kestimated installs
**What it is** The Chinese-language adaptation of Humanizer. It targets the patterns that mark machine-written Chinese - translated-sounding constructions, filler transitions, over-formal register - and rewrites them into natural prose.
**When to use** Any Chinese writing an agent produces that people will actually read. The gap between raw model output and natural prose is even wider in Chinese than in English, and this targets it directly.
Install Skill
Baoyu Translate logo
## [Baoyu Translate](https://skills.sh/jimliu/baoyu-skills/baoyu-translate) by Jim Liu
Three-pass idiomatic translation
40Kestimated installs
**What it is** A translation skill built on a three-step method: a literal pass, a critique of what reads unnaturally, then an idiomatic rewrite. Strongest for Chinese–English work, where the method originated.
**When to use** Content you'll publish, where a literal machine translation isn't good enough. It costs more tokens than a one-shot translation and earns them on quality.
Install Skill
Humanizer logo
## [Humanizer](https://github.com/blader/humanizer) by Siqi Chen
Stripping AI tells from English prose
40Kestimated installs
**What it is** The original de-AI-ing skill. It works from a catalog of documented AI-writing signs - inflated transitions, empty emphasis, formulaic structure - and rewrites drafts so the patterns disappear rather than just get rephrased.
**When to use** As a final pass over anything going out under your name. It edits what was written; if you want the agent to write differently in the first place, add Writing Guidelines alongside it.
Install PluginSkill
Nature Skills logo
## [Nature Skills](https://skills.sh/Yuan1z0825/nature-skills)
Academic papers and journal polish
35Kestimated installs
**What it is** A community suite of 18 academic-writing skills: paper structure, section drafting, polishing prose to journal register, reviewer responses, and figures. Each skill installs separately, and the count shown is the most-installed one (nature-figure) - adoption spreads across the suite rather than pooling in one skill.
**When to use** Papers, theses, and grant writing - it encodes the conventions reviewers expect instead of leaving them to the model's defaults. For general articles it over-formalizes; use Matt Pocock Writing Skills instead.
Install Skill
Lara Translate logo
## [Lara Translate](https://developers.laratranslate.com/docs/getting-started-with-mcp)
Context-aware translation at scale
30Kestimated installs
**What it is** Translated's official MCP server for its Lara translation platform: text translation, language detection, and context handling, served from a hosted endpoint with a local npm alternative from the same repository.
**When to use** Volume translation through a dedicated engine rather than the model itself. The hosted endpoint sets up with a browser login, so there's no local server to run.
**What you need** A Lara account, authorized via browser OAuth; free, Pro, and Team tiers are documented.
Install MCP
Stop Slop logo
## [Stop Slop](https://skills.sh/hardikpandya/stop-slop/stop-slop) by Hardik Pandya
Banning slop phrases outright
25Kestimated installs
**What it is** A blunt instrument: hard bans on the words and constructions that mark AI slop. No rewriting philosophy, just a list the agent is not allowed to touch.
**When to use** When Humanizer's full rewrite is more than you want and you just need the worst offenders gone. Cheap to run, easy to keep on permanently.
Install Skill
DeepL logo
## [DeepL](https://developers.deepl.com/docs/getting-started/deepl-mcp-server)
Team translation with glossaries
25Kestimated installs
**What it is** DeepL's official MCP server, run locally from npm and backed by the DeepL API: text and document translation, rephrasing, language operations, and your organization's glossaries.
**When to use** Teams that already standardize on DeepL and need terminology to stay consistent across translations. For one-off translation, a skill like Baoyu Translate costs nothing.
**What you need** A DeepL API key and Node.js 18+ - the server runs on your machine via npm.
Install MCP
Crowdin logo
## [Crowdin](https://store.crowdin.com/crowdin-mcp-server)
Localization projects in Crowdin
20Kestimated installs
**What it is** Crowdin's official hosted MCP server for localization operations: projects, source strings, translations, and terminology, worked on from inside the agent.
**When to use** Ongoing product localization - many languages, many strings, continuous updates. Not for translating a single document; use DeepL or a translation skill for that.
**What you need** A Crowdin account with a localization project.
Install MCP
## Choose by use case

What are you writing?

→ Matt Pocock Writing Skills - articles and essays that need an actual argument, not a generic draft

→ Doc Co-Authoring - specs, proposals, and decision docs, built section by section

→ Internal Comms - the status updates and announcements you write every week

→ Nature Skills - papers and theses held to journal conventions

Want prose that doesn't read like AI?

→ Writing Guidelines - steers the style as it writes, so drafts start clean

→ Humanizer - rewrites English drafts against the documented AI tells

→ Humanizer ZH - the same for Chinese, where the gap is wider

→ Stop Slop - a cheap, always-on ban on the worst phrases

Guidelines steer during, Humanizer cleans after - they stack.

No official Grammarly route yet - these target AI tells and house style, not comma-level grammar.

Translating something worth getting right?

→ Baoyu Translate - three-pass idiomatic quality, no account needed

→ Lara Translate - volume through a hosted engine, set up with a browser login

→ DeepL - when a team needs glossaries and consistent terminology

→ Crowdin - ongoing product localization, not a one-off document

The skill needs no account; the MCP servers pay off on volume and shared terminology.

## Related categories Copywriting, content strategy, and conversion copy live there. Notion, Google Docs, and document-file skills like docx.