The subject-only email that ruins someone's weekend
I normally write about systems and AI. Today I want to write about a subject-only email. "We need to talk." No agenda. No subject. Sent at 4:47pm on a Friday. For a lot of people that's mildly annoying. For a neurodivergent person, that message runs on loop all weekend — and by Monday it turns out to be about a holiday form.
“We need to talk.”
No agenda. No subject. Sent at 4:47pm on a Friday.
For a lot of people, that’s mildly annoying. For a neurodivergent person, that message runs on loop all weekend. Every project gets audited. Every Slack message from the last month gets re-read. By Monday, they’ve lived through six versions of a conversation that turns out to be about a holiday form.
That’s not fragility. That’s what happens when you give a pattern-matching brain a gap and no data to fill it.
The part most leaders miss
UK tribunals have already looked at communication style as a workplace adjustment, not a soft skill.
In Duncan v Fujitsu, the tribunal accepted that written agendas ahead of meetings — and conducting discussions in writing — were reasonable adjustments for an autistic employee.
In Mallon v AECOM, an employer couldn’t lean on email enquiries when the claimant’s disability made written communication difficult.
The question tribunals ask isn’t “was the manager rude?” It’s: did you know, or should you have known, that how you communicate was putting this person at a substantial disadvantage?
Vagueness is a design decision. Usually an unconscious one.
Four fixes that cost nothing
- Put the topic in the invite. “15 min — Q3 handover, nothing urgent.”
- Say the stakes out loud. If it’s not disciplinary, write this is not disciplinary.
- Never send an ambiguous message before a weekend or a holiday.
- Name the actual thing. “Team performance” as a subject line is a Rorschach test. Say what it’s really about.
None of this is special treatment. Clear context makes everyone faster. The neurodivergent people on your team are simply the ones who feel the cost of ambiguity first — the early-warning system for a comms culture that’s quietly taxing everybody.
Why I care about this
I spend most of my time building systems that automate the mundane so people can do the work only they can do. Turns out the highest-leverage system in most companies isn’t software. It’s whether your team knows what a meeting is about before they walk in.
Alongside the systems work, I run training for managers who want to get this right — practical sessions on communicating with neurodivergent teams without walking on eggshells. If your team has ever spent a weekend decoding a subject line, that’s exactly what it’s for.