Writing MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 594 installs a week from npm. Last commit 11 Jun 2026.
Metadata-first fiction editing and reasoning tools for long-form writing projects.
What the code does
We read the source, 4 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const child = spawn(process.execPath, ["--experimental-sqlite", indexPath, ...process.argv.slice(2)], {
? path.join(SYNC_DIR, "universes", universeSegment, STYLEGUIDE_CONFIG_BASENAME)
SELECT scene_id, tag
FROM scene_tags
WHERE project_id = ? AND scene_id IN (${placeholders})
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add mcp-writing -e 'WRITING_SYNC_DIR=<WRITING_SYNC_DIR>' -- npx -y @hanna84/mcp-writing{
"mcpServers": {
"mcp-writing": {
"command": "npx",
"args": [
"-y",
"@hanna84/mcp-writing"
],
"env": {
"WRITING_SYNC_DIR": "<WRITING_SYNC_DIR>"
}
}
}
}[mcp_servers.mcp-writing]
command = "npx"
args = ["-y", "@hanna84/mcp-writing"]
env = { WRITING_SYNC_DIR = "<WRITING_SYNC_DIR>" }{
"mcpServers": {
"mcp-writing": {
"command": "npx",
"args": [
"-y",
"@hanna84/mcp-writing"
],
"env": {
"WRITING_SYNC_DIR": "<WRITING_SYNC_DIR>"
}
}
}
}{
"servers": {
"mcp-writing": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@hanna84/mcp-writing"
],
"env": {
"WRITING_SYNC_DIR": "<WRITING_SYNC_DIR>"
}
}
}
}Put your own value in place of
<WRITING_SYNC_DIR> (Path to the manuscript sync folder that mcp-writing indexes and edits).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
DB_PATH (Optional path for the SQLite index database used by the server), OWNERSHIP_GUARD_MODE (Startup ownership policy for sync-folder files).
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Writing MCP — questions
Answers built from our own checks of this server.