Skip to content
Agentmart
Submit a tool

Postlint MCP Server

Check a social post against a platform's real character limit: X, Bluesky, LinkedIn, Threads.

Connector by conorbronsdon · GitHub account verified by the MCP Registry

IndexedApache-2.0Local (stdio)
Write a review

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/conorbronsdon-postlint-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Get the weekly diff

The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.

We use your email only for this newsletter. Privacy

About

Check a social post against a platform's real character limit: X, Bluesky, LinkedIn, Threads.

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools
3 read · 0 write · 0 deleteRead-only
Secrets
None asked for
Install scripts
None found
Runs as
Node.js package

Tools by what they do 3

Read from the source code; the running server may list different tools.

Read 3 · Look things up without changing anything.

  • check_post
  • check_post_all
  • platform_limits

Network hosts it talks to 6

  • about.fb.com · found in code
  • docs.joinmastodon.org · found in code
  • github.com · found in code
  • glama.ai · found in code
  • support.discord.com · found in code
  • youtu.be · found in code

Tools (3)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • check_post

    Check a social post against one platform's real character limit and report whether it fits. Returns the counted length, the limit, and what drove the count (URLs billed at a fixed width, non-Latin characters billed double, emoji sequences collapsed to one grapheme). Use this before publishing anything with a hard limit — the counting rules are per-platform and are not text.length.

  • check_post_all

    Check one post against every platform at once and get a row per platform: counted length, limit, and whether it fits. Use this when deciding where a draft can go as-is. The per-platform arithmetic is included only for the platforms it fails, to keep the response small — call check_post for a single platform's full breakdown.

  • platform_limits

    List the platforms this server knows, with each one's limit, the unit it is measured in, why that unit is not a plain character count, and the source the number came from. Use it to explain a result or to see what is covered.

Signals

Stars
0
Forks
0
Open issues
0
Weekly downloads
602
Last commit
Oct 23, 2026 (5 days ago)
Last release
Aug 2, 2026 (2 months ago)
Last package publish
Aug 2, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name
io.github.conorbronsdon/postlint-mcp
Version
1.1.0
Auth
No auth
Packages
npm @conorbronsdon/postlint-mcp
License
Apache-2.0
Repository
github.com/conorbronsdon/postlint-mcp
First seen
Oct 24, 2026
Last checked
Oct 25, 2026
Source
Official MCP Registrygithub-graphql

More from conorbronsdon

Cite this page

Postlint MCP Server. Agent Mart. https://agentmart.dev/connectors/conorbronsdon-postlint-mcp (last updated 2026-10-25)