Datum · set it up

The free plan allows one custom connector, and you can add it from the mobile app as well as the web.

1

In the sidebar click Customize, then Connectors, then Add, then Add custom connector.

2

Name it Datum, paste the URL below into Remote MCP server URL, then Continue.

Connector URL

https://datum.rileyaisystems.com/mcp

3

Choose Sign up in the bottom right, then enter your first and last name, your email, then a password.

4

Back in Customize, then Connectors, open Datum and set its tools to Always allow.

Datum is used on every job, so approving each call gets old fast, and a call you skip is a job your rules were not applied to.

5

Put the text below into Settings, then Profile, then Instructions.

Custom instructions

Before writing any email, post, DM, comment or reply for me, call Datum's do first and follow any of my Datum skills that match. Only show me a draft as ready once Datum has passed it, never send anything it hasn't passed, and do what it says when it refuses. Brainstorms, outlines and fixing my own wording stay in the chat and don't need it. When I mention a person, company or client, call Datum's ask before searching anywhere else. When I say remember, from now on, always or never, save it with Datum's confirm. If I mention something durable Datum doesn't have, offer to save it.

6

Open a chat and paste this to get started.

Starter prompt

I just connected Datum. Walk me through it with the guide tool. Keep it brief, and cover all four: facts, rules, spaces and sources. Propose the facts and style rules you already believe about me so I can confirm them.

Use a chat that already has your context, or paste a brief first. A blank chat gives thin facts.

Works on the free plan. Developer mode has to be on first, and you can only turn it on in a browser.

1

In a desktop browser: Settings, then Security and login, then turn on Developer mode.

2

In the sidebar click Plugins, then the + beside the search box, then Create app, then Create MCP App.

3

Name it Datum, paste the URL below into MCP Server URL, tick the box to confirm you trust it, then click Create.

Connector URL

https://datum.rileyaisystems.com/mcp

4

Choose Sign up in the bottom right, then enter your first and last name, your email, then a password.

If it asks your permission each time it uses Datum, open Datum in your connector settings and set its tools to always allow. Datum is used on every job, so approving each call gets old fast, and a call you skip is a job your rules were not applied to.

5

Put the text below into Settings, then Personalization, then Custom Instructions.

Custom instructions

Before writing any email, post, DM, comment or reply for me, call Datum's do first and follow any of my Datum skills that match. Only show me a draft as ready once Datum has passed it, never send anything it hasn't passed, and do what it says when it refuses. Brainstorms, outlines and fixing my own wording stay in the chat and don't need it. When I mention a person, company or client, call Datum's ask before searching anywhere else. When I say remember, from now on, always or never, save it with Datum's confirm. If I mention something durable Datum doesn't have, offer to save it.

6

Open a chat and paste this to get started.

Starter prompt

I just connected Datum. Walk me through it with the guide tool. Keep it brief, and cover all four: facts, rules, spaces and sources. Propose the facts and style rules you already believe about me so I can confirm them.

Use a chat that already has your context, or paste a brief first. A blank chat gives thin facts.

Works on the free plan.

1

In the sidebar click Plugins, then New Connector, then Custom.

2

Name it Datum, paste the URL below into Server URL, then Add Connector.

Connector URL

https://datum.rileyaisystems.com/mcp

3

Choose Sign up in the bottom right, then enter your first and last name, your email, then a password.

If it asks your permission each time it uses Datum, open Datum in your connector settings and set its tools to always allow. Datum is used on every job, so approving each call gets old fast, and a call you skip is a job your rules were not applied to.

4

Put the text below into Settings, then Customize, then Custom.

Custom instructions

Before writing any email, post, DM, comment or reply for me, call Datum's do first and follow any of my Datum skills that match. Only show me a draft as ready once Datum has passed it, never send anything it hasn't passed, and do what it says when it refuses. Brainstorms, outlines and fixing my own wording stay in the chat and don't need it. When I mention a person, company or client, call Datum's ask before searching anywhere else. When I say remember, from now on, always or never, save it with Datum's confirm. If I mention something durable Datum doesn't have, offer to save it.

5

Open a chat and paste this to get started.

Starter prompt

I just connected Datum. Walk me through it with the guide tool. Keep it brief, and cover all four: facts, rules, spaces and sources. Propose the facts and style rules you already believe about me so I can confirm them.

Use a chat that already has your context, or paste a brief first. A blank chat gives thin facts.

Works on the free plan.

1

In the sidebar click Plugins, then Create, then Add MCP by URL.

2

Name it Datum, paste the URL below into Server URL, then Save.

Connector URL

https://datum.rileyaisystems.com/mcp

3

Open the Datum plugin and click Connect. Choose Sign up in the bottom right, then enter your first and last name, your email, then a password.

If it asks your permission each time it uses Datum, open Datum in your connector settings and set its tools to always allow. Datum is used on every job, so approving each call gets old fast, and a call you skip is a job your rules were not applied to.

4

Put the text below into Settings, then Personalization, then Custom Instructions.

Custom instructions

Before writing any email, post, DM, comment or reply for me, call Datum's do first and follow any of my Datum skills that match. Only show me a draft as ready once Datum has passed it, never send anything it hasn't passed, and do what it says when it refuses. Brainstorms, outlines and fixing my own wording stay in the chat and don't need it. When I mention a person, company or client, call Datum's ask before searching anywhere else. When I say remember, from now on, always or never, save it with Datum's confirm. If I mention something durable Datum doesn't have, offer to save it.

5

Open a chat and paste this to get started.

Starter prompt

I just connected Datum. Walk me through it with the guide tool. Keep it brief, and cover all four: facts, rules, spaces and sources. Propose the facts and style rules you already believe about me so I can confirm them.

Use a chat that already has your context, or paste a brief first. A blank chat gives thin facts.

Needs a paid Perplexity plan. Custom connectors are not on the free tier.

1

Open Settings, then Connectors, then Add connector.

2

Add the connector below.

Connector URL

https://datum.rileyaisystems.com/mcp

3

Choose Sign up in the bottom right, then enter your first and last name, your email, then a password.

If it asks your permission each time it uses Datum, open Datum in your connector settings and set its tools to always allow. Datum is used on every job, so approving each call gets old fast, and a call you skip is a job your rules were not applied to.

4

Put the text below into the app’s custom instructions or system prompt.

Custom instructions

Before writing any email, post, DM, comment or reply for me, call Datum's do first and follow any of my Datum skills that match. Only show me a draft as ready once Datum has passed it, never send anything it hasn't passed, and do what it says when it refuses. Brainstorms, outlines and fixing my own wording stay in the chat and don't need it. When I mention a person, company or client, call Datum's ask before searching anywhere else. When I say remember, from now on, always or never, save it with Datum's confirm. If I mention something durable Datum doesn't have, offer to save it.

5

Open a chat and paste this to get started.

Starter prompt

I just connected Datum. Walk me through it with the guide tool. Keep it brief, and cover all four: facts, rules, spaces and sources. Propose the facts and style rules you already believe about me so I can confirm them.

Use a chat that already has your context, or paste a brief first. A blank chat gives thin facts.

Not yet, and I would rather tell you than waste your afternoon. The Gemini app most people use does not support custom MCP connectors. Only Gemini Enterprise, the Google Cloud product, can add one, under Connected apps, then Add MCP Server.

Your facts live under your account, not inside any one assistant. The day Gemini supports this, everything you confirmed is already waiting. Email me and I will tell you when.