Before you paste an email thread into a brief: five things to leave out

You want a helper to draft a reply, so you select the whole email thread and paste it into the brief. It takes a second. It also carries along four signatures, a phone number, a candid remark about someone who has nothing to do with this job and a forwarded message from two years ago. (A hypothetical scene, for illustration.)

A thread is often the best background a helper can get, but it was written for the people in it, not for a stranger who needs one answer from it. A two-minute trim before you paste keeps the useful part and leaves the rest behind. It works for any helper, whether a colleague, an agency or an AI assistant. Five things to leave out:

1. Signatures and contact details. Phone numbers, home addresses and job titles rarely help with the task. If the helper needs a name, give the name.
2. Remarks that were not meant to travel: a joke about a colleague, a comment on someone's performance, a half-formed opinion. If a remark matters to the task, restate the point in your own neutral words.
3. Forwarded history below the part that matters. Older messages often carry names, figures and decisions that have since been overtaken. Keep the last two or three messages and a one-line summary of what came before.
4. Attachments and links the task does not need. Paste the one that matters and describe the rest in a line. Every extra document is one more thing the helper may rely on, and one more thing for you to check.
5. Anything you were told in confidence. If it is not yours to share, it is not yours to paste. Ask the owner first, or leave it out and say that something has been left out.

Replace, don't just delete. If the helper needs to tell two people apart, use labels such as "the supplier" and "our manager", and keep the labels consistent through the thread. A gap with no explanation invites the helper to guess what used to be there.

Then add one line to the brief: "This thread has been trimmed. Details I left out are not needed for this task." It tells the helper the gaps are deliberate, so that it does not try to fill them in.

Finish by reading the trimmed version once as a stranger would. If you would feel uncomfortable with a stranger reading any line, trim that line again. The test takes thirty seconds and settles most doubts.

A hypothetical case: a twelve-message thread about a delayed delivery. After trimming, three messages remain, the supplier is called "the supplier", and a one-line summary says the delivery date has moved twice. The brief asks for a short, polite reply proposing a new date. The draft that comes back mentions no one's phone number and no one's private remarks, because none of them ever went into the brief.

Octuo is a personal assistant and one starting point for work across AI, tools and specialist services. It hands tasks to specialist tools you've installed, set up and authorized and to outside services, and it reports back when a job is done. What each of them needs to see is a decision worth making in the brief, before you hand something over. Octuo is available for macOS.