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JJ Englert, Tenex's AI use case

Community Enablement Lead at Tenex

Built a Daily Operating System in Claude Cowork that gives AI persistent context about his work, writing style, team, calendar, messages, and priorities so it can draft emails, review work, and prepare morning debriefs.

The problem

What was broken before AI

Most people use AI in scattered one-off conversations. The assistant does not remember enough about the user’s work, communication style, team, calendar, or priorities to be truly useful day after day. That means the user has to repeatedly re-explain context, manually gather information from different tools, and still review generic outputs that do not sound like them.

What changed

What the use case made possible

JJ created a dedicated Claude Cowork project that acts like a work hub. A simple brain file gives Cowork standing context about his preferences and collaborators. Connectors let it reference Gmail, Slack, Notion, and calendar data. Reusable skills help it write in his voice and review work from multiple perspectives. A scheduled morning debrief turns the system from reactive chat into a proactive daily planning assistant.

Why this matters

Why this use case is worth studying

JJ’s setup works because it gives AI a rhythm and a place to live. Instead of opening a new chat every time, he gives Claude recurring context: how he works, how he writes, who he works with, what tools matter, and what needs to happen each morning. The result feels less like a clever prompt and more like a lightweight operating system for the workday.

Use this when

When this pattern applies

Use this pattern when your work depends on the same recurring context every day: your writing style, your priorities, your teammates, your calendar, your inbox, and the way you make decisions. It works best when you keep asking AI for help with similar tasks, but waste time re-explaining yourself each time.

Exponential Builder analysis

01

Give AI a permanent workbench.

JJ’s setup shows that usefulness compounds when the assistant returns to the same project, files, instructions, and connected tools instead of starting from zero in a blank chat.

02

Memory needs structure.

A simple brain file beats vague personalization because it gives the model durable facts about preferences, collaborators, writing style, and boundaries that can be edited when the work changes.

03

Proactivity comes from cadence.

The scheduled morning debrief matters because it gives the assistant a recurring job with fresh context from email, Slack, and calendar, turning AI into part of the operating rhythm of the day.

Who this is for

Best fit

Operators and managers

Community or customer-facing leads

Founders with busy inboxes

People who write a lot of recurring emails

Teams experimenting with AI assistants for daily planning

Anyone whose work is spread across email, Slack, calendar, and docs

What to avoid

Mistakes and warnings

Where this pattern can go wrong if you copy it too literally.

Review app permissions carefully before connecting email, calendar, or messages.

Keep humans in control of outbound emails and messages.

Keep the brain file organized; a messy memory file can make the system less useful.

Start small with one folder, one brain file, one skill, and one recurring task before expanding.

Public workflow preview

The shape of the workflow

A high-level look at how the use case works, with the reusable pattern made clear.

01

Give the AI a home base

JJ starts with a dedicated project folder so the AI has a consistent workspace instead of scattered chats.

02

Add a personal brain file

He writes down working preferences, team context, communication style, and standing instructions so Cowork understands how he works.

03

Connect the everyday apps

Gmail, Slack, Notion, and calendar connections give the assistant the context it needs to help with real work.

04

Turn repeated tasks into skills

JJ creates reusable skills for things like drafting emails in his voice or reviewing work from multiple perspectives.

05

Make the assistant proactive

A scheduled morning debrief checks messages, meetings, and priorities before the workday begins.

Copy the pattern

The reusable idea

Pattern in one sentence

Give AI a stable home, a small memory file, and a few recurring jobs so it can help from context instead of starting fresh every time.

Reusable idea

The useful move here is to stop treating AI like a fresh conversation every morning. JJ gives Claude a stable workspace, a short memory file, access to the tools that matter, and a few repeatable jobs. That makes the assistant better over time because it is working from the same context again and again.

Steal this workflow

Create a lightweight Daily Operating System for one work context:

1

Make one dedicated project folder called “Daily OS” or tied to a specific role/project.

2

Add a brain.md file with: your role, recurring responsibilities, collaborators, communication style, tools to reference, repeated tasks, and hard boundaries.

3

Connect the project to the few apps that matter most, such as Gmail, Slack, Notion, and calendar, using careful permissions.

4

Add standing instructions: the assistant should help plan the day, draft messages, summarize context, and prepare you for meetings.

5

Build one reusable skill from your own work, such as analyzing sent emails to learn your email style.

6

Add a clear rule that outbound messages are drafts for review only.

7

Create one review skill that critiques work from several useful perspectives, such as a boss, engineering lead, customer, or ICP.

8

Schedule a weekday morning debrief that reviews messages, meetings, priorities, and prep needs.

9

Tighten the brain file and instructions each week based on what the assistant got wrong or overreached on.

Suggested prompt

“You are my daily work assistant for this project. Use my brain.md file, project instructions, and connected tools to help me plan and prepare my workday. Every weekday morning, review my email, Slack, calendar, and relevant notes. Summarize what changed, flag messages that need attention, identify today’s meetings and prep needed, list the highest-priority actions, and draft any useful replies for my review. Do not send messages or take external actions without my approval.”

Field notes

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