Mike
Knowing about Claude.md and Memory.md has really helped my interactions with Claude. The voice principles md is also valuable and worth investing some time to understand. Following this course will get you where you need to be faster, with all the info you need presented in one place over the course of a few days.
Dante GA
A great way to understand structure and how to get the most out of Claude or any LLM for that matter.
Thom Schröder
The YouTube video made me finally get a Claude subscription to use Cowork. I was already digitizing myself with markdown files, but I needed a system. The toolkit gave me that system that writes itself over time, with clear actionable instuctions to set it up.
Ege
very useful! I am much knowledgeable and efficient.
Tony Tran
Thanks Jeff, the toolkit is very useful, I applied it in my real daily work.
Robin Johnson
Helpful set up. Saves a ton of set up and experimentation time.
Chris Blocher
Awesome approach! Love this format. I was initially confused by the toolkit terminology "HQ", "Workstation", and "Project", but used my own terms instead. Unfortunately, my hard drive died, eating all my Cowork work! (Really could use a tip there if you have one.) Once my PC is repaired, I'll do this flow all over again...it was that good. Thanks Jeff!
Jakob Muus
This was the first time I really understood what Cowork is able to do and how important it is (and how) to build a good architecture. I have since built my own tax-reporting workspace, and am setting up different workspaces.
Zach M.
I have been following Jeff’s stuff for a long time, but this is the first time I truly felt like I had a grasp of my regular AI flow. For so long it’s been watching videos, reading posts all from different people, and just trying to merge it altogether. But it was a mess. With this system, I can hit new task inside Claude Cowork and I know when I’m done with that task. I will still be as organized as I was before the task began.
Daniel Sollero
I guess the part about voice was the best for me. I am not sure yet where my current projects should be. I mean, I do have several projects about products. Should I create a Products HQ? But I really liked the content and the knowledge about Cowork
Dom
I've been trying to develop a Claude Cowork-driven workspace but didn't know how to make it consistent. Jeff's Cowork OS helped me achieve that consistency and an easy ability to build it out more than expected.
Tsungyen Chen
Everything in the toolkit is very practical and can be applied to real work immediately
Gustavo

I'm a Gemini guy. At work, I'm a perplexity guy. So there was no reason to try Claude Cowork, but as Jeff Su's follower on YT, I saw the video and got interested, tried using and now Cowork is my main AI tool. As Antigravity user, I still use Antigravity for vibe coding, but Cowork is for all other activities. My final take is: You have to try this tool. It is nothing like any other in the market right now and probably will cover most of your needs.

Tjark Reinecke
The biggest impact has been the inbox-to-bookkeeping pipeline. Raw scans land in one folder, get triaged once with a naming convention and status marker, then ride a single rail: tracker entry, payment-run XML per company, banking-app import, a trigger phrase flips them to paid, and the same trigger bundles them into a weekly handoff package for the bookkeeper. The same receipt stopped getting touched seven times. Day-to-day: I run weekly payment runs across eight entities by typing one phrase. Edge cases hold cleanly too — when an account needs topping up first, the XML waits, the tracker stays in "in export", and a doubled reminder (scheduled task + calendar) sits there until I act. For someone on the fence: the value isn't the folder structure, it's that short trigger phrases fan out into deterministic steps you'd otherwise do by hand. Two things make the setup worth it specifically — workflow rules live in one file and Cowork keeps every running scheduled task in sync with them, and the routing table means new files know their own home, so you stop naming folders. My recommendation: commit to the inbox + tracker loop first and ignore the rest. Once that one loop saves you an hour a week, everything else clicks into place on its own.
Anibal Fraquelli

Everything about the Cowork Toolkit has been great. The part that has had the biggest impact on my daily workflow is the clarity of the setup process. It helped me organize my work, reduce friction, and move through tasks with much more focus and structure. If someone is on the fence about following this Cowork setup process, I would tell them to go for it. It is practical, easy to apply, and genuinely improves the way you manage your daily work. It is one of those systems that makes you feel more organized from the very beginning.

Vova Khomenko

The Cowork Toolkit in a form of a daily newsletter was an insightful guidance on how to build my own COwork environement from scratch. Easy to follow step-by-step isntructions, not hard to udnerstnd but impactful enough to work. It was liek a Lego Technic isntruction in a simple steps to build a workign machine. If someone is just starting with Cowork i would surely recommend this resource as a great startign points. Of course later you need to experiment and do your part, which is logical next step. What i would recommend to add is to how to ensure that toekns usage is kept low, i.e. shoudl we start each new conversation in a new chat or continue in the same while settign up the system, as it was nto clearly articulated but would be very helpful. Overall i am satisfied with the time i invested into buildign my Cowork system and look forward for the more adavnced level of Toolkit as well as full course on it. And surely need to do more expereimentation. I would happy also to have soem manual book with all the best practices assesmbled, not just teh promts but evergreen priciniples to do it effeceintly and be able to build on top of what is already created.

Mike
Knowing about Claude.md and Memory.md has really helped my interactions with Claude. The voice principles md is also valuable and worth investing some time to understand. Following this course will get you where you need to be faster, with all the info you need presented in one place over the course of a few days.
Dante GA
A great way to understand structure and how to get the most out of Claude or any LLM for that matter.
Thom Schröder
The YouTube video made me finally get a Claude subscription to use Cowork. I was already digitizing myself with markdown files, but I needed a system. The toolkit gave me that system that writes itself over time, with clear actionable instuctions to set it up.
Ege
very useful! I am much knowledgeable and efficient.
Tony Tran
Thanks Jeff, the toolkit is very useful, I applied it in my real daily work.
Robin Johnson
Helpful set up. Saves a ton of set up and experimentation time.
Chris Blocher
Awesome approach! Love this format. I was initially confused by the toolkit terminology "HQ", "Workstation", and "Project", but used my own terms instead. Unfortunately, my hard drive died, eating all my Cowork work! (Really could use a tip there if you have one.) Once my PC is repaired, I'll do this flow all over again...it was that good. Thanks Jeff!
Jakob Muus
This was the first time I really understood what Cowork is able to do and how important it is (and how) to build a good architecture. I have since built my own tax-reporting workspace, and am setting up different workspaces.
Zach M.
I have been following Jeff’s stuff for a long time, but this is the first time I truly felt like I had a grasp of my regular AI flow. For so long it’s been watching videos, reading posts all from different people, and just trying to merge it altogether. But it was a mess. With this system, I can hit new task inside Claude Cowork and I know when I’m done with that task. I will still be as organized as I was before the task began.
Daniel Sollero
I guess the part about voice was the best for me. I am not sure yet where my current projects should be. I mean, I do have several projects about products. Should I create a Products HQ? But I really liked the content and the knowledge about Cowork
Dom
I've been trying to develop a Claude Cowork-driven workspace but didn't know how to make it consistent. Jeff's Cowork OS helped me achieve that consistency and an easy ability to build it out more than expected.
Tsungyen Chen
Everything in the toolkit is very practical and can be applied to real work immediately
Gustavo

I'm a Gemini guy. At work, I'm a perplexity guy. So there was no reason to try Claude Cowork, but as Jeff Su's follower on YT, I saw the video and got interested, tried using and now Cowork is my main AI tool. As Antigravity user, I still use Antigravity for vibe coding, but Cowork is for all other activities. My final take is: You have to try this tool. It is nothing like any other in the market right now and probably will cover most of your needs.

Tjark Reinecke
The biggest impact has been the inbox-to-bookkeeping pipeline. Raw scans land in one folder, get triaged once with a naming convention and status marker, then ride a single rail: tracker entry, payment-run XML per company, banking-app import, a trigger phrase flips them to paid, and the same trigger bundles them into a weekly handoff package for the bookkeeper. The same receipt stopped getting touched seven times. Day-to-day: I run weekly payment runs across eight entities by typing one phrase. Edge cases hold cleanly too — when an account needs topping up first, the XML waits, the tracker stays in "in export", and a doubled reminder (scheduled task + calendar) sits there until I act. For someone on the fence: the value isn't the folder structure, it's that short trigger phrases fan out into deterministic steps you'd otherwise do by hand. Two things make the setup worth it specifically — workflow rules live in one file and Cowork keeps every running scheduled task in sync with them, and the routing table means new files know their own home, so you stop naming folders. My recommendation: commit to the inbox + tracker loop first and ignore the rest. Once that one loop saves you an hour a week, everything else clicks into place on its own.
Anibal Fraquelli

Everything about the Cowork Toolkit has been great. The part that has had the biggest impact on my daily workflow is the clarity of the setup process. It helped me organize my work, reduce friction, and move through tasks with much more focus and structure. If someone is on the fence about following this Cowork setup process, I would tell them to go for it. It is practical, easy to apply, and genuinely improves the way you manage your daily work. It is one of those systems that makes you feel more organized from the very beginning.