Koskamo

Writing Style Checker MCP

A prose linter and AI-slop detector that identifies weasel words, passive voice, duplicate words, long sentences, nominalizations, hedging, filler adverbs, and AI tells in technical writing. It provides tools to analyze text, fix duplicates, and list word lists via MCP.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Writing Style Checker MCP logo, by theserverlessdevCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by theserverlessdev
MCP endpoint (Streamable HTTP)
https://wsc.theserverless.dev/mcp
Vendor documentation

What its tools do

3 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

3 of 3 have a description · 3 of 3 declare behavior hints · 2 of 2 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Analyze text for 8 writing style issues
  • Remove duplicate adjacent words
  • Return info about detector word lists
  • Read and analyze local files

Source and maintenance

Community listingRegistry 2.2.2
Maintenance checked

Protocol and capabilities

Server
writing-style-checker 2.2.2
MCP protocol negotiated in check
2025-03-26
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {}
}

Tools

3 advertised

check_text — Check text for writing style issues
Advertised by the server during the last successful anonymous check.
Advertised read-only

Analyze text for writing style issues: weasel words, passive voice, duplicate words, long sentences, nominalizations, hedging, filler adverbs, and research-cited AI tells. Read-only and stateless — text is analyzed in memory on the hosted server and never stored. Returns a plain-text report with each issue's line and column, the matched text, surrounding context, and the reason for AI tells; texts over 100,000 characters return an error message. This hosted server has no filesystem access — the wsc-mcp npm package adds a check_file tool for local files. It only reports issues — to auto-remove duplicate words, follow up with fix_duplicates.

check_text input schema
{
  "type": "object",
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string",
      "description": "The text to analyze for writing style issues"
    },
    "config": {
      "type": "object",
      "description": "Optional config to enable/disable detectors or add/remove word-list entries; same schema as .wscrc.json (https://wsc.theserverless.dev/schema.json)"
    },
    "format": {
      "enum": [
        "plain",
        "markdown"
      ],
      "type": "string",
      "description": "Set to \"markdown\" to mask code blocks, inline code, tables, and headings so they are not linted as prose; default \"plain\" lints everything"
    }
  }
}
check_text annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}
fix_duplicates — Remove duplicate adjacent words
Advertised by the server during the last successful anonymous check.
Advertised read-only

Remove duplicate adjacent words (case-insensitive, including across line breaks) and return the cleaned text plus the list of words that were removed. Read-only with no side effects: the fix is returned in the response, nothing is written anywhere. Use after check_text reports duplicate words; other issue types are report-only and have no auto-fix.

fix_duplicates input schema
{
  "type": "object",
  "required": [
    "text"
  ],
  "properties": {
    "text": {
      "type": "string",
      "description": "The text to clean by removing duplicate adjacent words"
    }
  }
}
fix_duplicates annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}
list_word_lists — List detector word lists
Advertised by the server during the last successful anonymous check.
Advertised read-only

Return every detector word/phrase list with its entry count, config key, and sample entries, plus a link to the full browsable library. Read-only, takes no parameters, and returns the same catalog for a given release. Use it to see what the detectors match before tuning a config for check_text; not needed for ordinary checking.

list_word_lists input schema
{
  "type": "object",
  "required": [],
  "properties": {}
}
list_word_lists annotations
{
  "readOnlyHint": true,
  "openWorldHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (1 of 1 answered).

  1. 2026-11-07: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
303 ms
95th percentile latency
303 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 303 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http writing-style-checker-mcp-theserverless https://wsc.theserverless.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add writing-style-checker-mcp-theserverless --url https://wsc.theserverless.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable writing-style-checker-mcp-theserverless in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "writing-style-checker-mcp-theserverless": {
      "url": "https://wsc.theserverless.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "writing-style-checker-mcp-theserverless": {
      "type": "streamableHttp",
      "url": "https://wsc.theserverless.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start writing-style-checker-mcp-theserverless and inspect its tools.
VS Code configuration
{
  "servers": {
    "writing-style-checker-mcp-theserverless": {
      "type": "http",
      "url": "https://wsc.theserverless.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http writing-style-checker-mcp-theserverless https://wsc.theserverless.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://wsc.theserverless.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "writing-style-checker-mcp-theserverless": {
      "serverUrl": "https://wsc.theserverless.dev/mcp"
    }
  }
}

Let your agent find its tools

Find servers like Writing Style Checker MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.