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Connect Superhuman Mail to VS Code

Give VS Code governed access to Superhuman Mail’s 33 tools through Runlayer, with identity, policy, scanning, and audit on every call.

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Set up

Add Superhuman Mail to VS Code in four steps

Admins approve the server once. Everyone in VS Code then gets it through the same governed connection.

  1. 1

    Approve Superhuman Mail in Runlayer

    Add Superhuman Mail from the catalog and choose who can use it and which of its tools are allowed.

  2. 2

    Connect VS Code to Runlayer

    Runlayer’s CLI installs the Runlayer Plugin natively in VS Code; users can also add it over MCP. With direct tool listing turned on for your deployment, Superhuman Mail’s 33 tools show up in VS Code’s own tool list (VS Code 1.103 or newer).

    VS Code setup guide
  3. 3

    Sign in to Superhuman Mail

    Sign in the way Superhuman Mail requires. Runlayer holds the credentials so they stay out of the client’s configuration.

  4. 4

    Use Superhuman Mail from VS Code

    Superhuman Mail’s approved tools appear in VS Code. Every call is checked against policy and recorded.

Tools

33 Superhuman Mail tools in VS Code

Runlayer policy decides which of these VS Code users can call.

  • Add account

    Start linking an additional Superhuman Mail account to this session so it can be acted on alongside the current account.

  • Create or update draft

    Compose an email on behalf of the user.

  • Create or update event

    Create a new calendar event or edit an existing one.

  • Create or update reminder

    Create or reschedule a reminder on a Superhuman Mail thread.

  • Create or update snippet

    Save a reusable Superhuman Mail snippet (an email template).

  • Discard draft

    Discard a user-owned Superhuman Mail draft by draft_id so it disappears from the user's Drafts list.

  • Discard reminder

    Discard (cancel) a reminder on a Superhuman Mail thread so it no longer brings the thread back to the top of the inbox.

  • Discard snippet

    Remove a saved Superhuman Mail snippet, identified by the id from list_snippets.

See all 33 Superhuman Mail tools

Control

What Runlayer can see and stop in VS Code

Some controls apply to every client at the gateway. Others depend on what VS Code exposes to Runlayer.

  • Gateway policy (available)

    Every Superhuman Mail call from VS Code passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, VS Code as the client, the tool, and the policy and scanner decisions.

  • Client hooks (available)

    Capture supported prompts, reasoning, local and MCP tool calls, responses, and scanner decisions in real time.

  • Stop a call before it runs (available)

    Runlayer can deny a tool call before VS Code runs it.

  • Block output after it runs (available)

    Runlayer can block a tool’s output before VS Code’s model sees it.

  • Redact output in place (available)

    Runlayer can mask sensitive parts of a tool’s output in VS Code and pass the rest through.

Frequently asked questions

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