Pulsar Edit

You can run a Pulsar Edit MCP server to enable a chat-driven interface for editing code within the Pulsar editor. This MCP server exposes a remote endpoint that you can connect to from a compatible chat client, letting you perform common editor actions through natural language or prompts while coding.

How to use

Connect your MCP client to the Pulsar Edit MCP server to start issuing editor commands via chat. Common workflows include asking to replace text, insert lines, view or edit specific sections around a match, and manage files within your project. When you send a request, the server interprets it and applies the corresponding action in the active Pulsar editor window. You can use the built-in chat or a third-party chat client compatible with MCP endpoints.

How to install

Prerequisites you need before installing the MCP server include Node.js and a Pulsar environment where the package manager used by Pulsar is available.

1. Install the MCP server package.

2. In Pulsar, enable the MCP server to listen.

3. Verify that the MCP tile shows as active in the Pulsar editor.

Configuration and usage details

The MCP server can be configured to expose a live HTTP endpoint that your chat client connects to. Use the following example as a starting point for configuring the MCP connection.

{
  "mcpServers": {
    "pulsar_edit_mcp": {
      "url": "http://localhost:3000/mcp",
      "disabled": false,
      "alwaysAllow": [],
      "type": "http"
    }
  }
}

Available tools

Replace Text

Search the active editor for a given query and replace it with a specified replacement.

Get Context Around

Return surrounding lines around the N-th match of a query in the active editor to provide content-aware context for edits.

Find Text

Search the active editor for a substring or regular expression and return the positions of each occurrence.

Replace Document

Replace the entire contents of the current document with new content.

Insert Line

Insert a blank line at a specific row.

Insert Text At Line

Insert a block of text at a specified line number, shifting existing text downward.

Delete Line

Delete a single line in the active document.

Delete Line Range

Delete a range of lines in the active document.

Get Selection

Retrieve the currently selected text.

Get Document

Get an array containing every line of the current document with line numbers.

Get Line Count

Return the total number of lines in the current document.

Get Filename

Return the filename of the current document.

Get Full Path

Return the full filesystem path of the current document.

Get Project Files

List all files in the current project.

Open File

Open a file or switch to its tab if it is already open.

Undo

Undo the last change in the editor.

Redo

Redo the last undone change in the editor.