Specset
Agents

Use Specset from Claude

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The Specset plugin teaches Claude to work with your Specset organization: search specs and drawings, set up projects, manage submittals, RFIs, and closeout data, chat with project agents, and move files between your computer and Specset. It bundles nine /specset skills plus a native MCP connector, all powered by the specset CLI, and works in the Claude app and in Claude Code.

Install in the Claude app

  1. Open Settings → Plugins and click Browse to open the plugin directory.
  2. On the Personal tab, click +, then choose Add from a repository.
  3. Enter specsetai/specset-plugins, pick the matching repository, and click Sync. Leave Sync automatically on so plugin updates flow in when a new version is published.
  1. The marketplace appears as specset-plugins. On the Specset plugin card, click + to install — that's it.

Open the card to see everything the plugin registers — the skills and the specset MCP connector:

Install in Claude Code

The same plugin installs from the terminal:

/plugin marketplace add specsetai/specset-plugins
/plugin install specset

First run: sign in

The skills are self-bootstrapping. The first time you ask a Specset question, Claude installs the specset CLI (Node.js 20+ required) and walks you through sign-in. With a visible local browser it uses specset login; in a remote or headless session it falls back to device authentication:

specset login --device

The CLI prints a code and link you can approve from any device. Credentials stay with the CLI via browser OAuth — the agent never sees or stores them, and the skills default to read-only operations, asking before anything that changes data.

Then just ask a question:

"What mechanical equipment is scheduled on level 2 of my project?"

Upload and download files

Because the Claude plugin runs locally, it can use file paths on your computer. Ask Claude to attach a submittal, RFI response, project document, image, or other supported file and it will stream the file through the CLI:

specset files upload ./submittal.pdf --json

The command returns the cloud file ID needed by the related Specset workflow. Downloads use the matching project or record download command, so large files do not need to be copied into the conversation first.

Using Codex too? The Specset plugin for Codex includes the same nine skills, MCP tools, authentication flow, and local file support.