AI Guides › Skills & Agents
Reading A Skill's Permission List Like A Contract, Not A Formality
By Nigel Guy · 3 min read
A permission list appears at exactly the moment you're least inclined to
read it carefully — right before the thing you actually wanted to do. It
looks like the same kind of screen as a cookie banner: something between
you and the feature, to be dismissed rather than considered. It isn't. It's
the actual terms of what you're letting something access and do, and it
deserves the same attention you'd give a contract you were about to sign,
not the attention you give a pop-up.
The rule: read a permission list the way you'd read a contract —
line by line, asking what the worst plausible use of each specific line is
— because skimming to the "allow" button is agreeing to terms you haven't
actually read.
The mechanism
- Read every line item, not just the summary sentence at the top. The
headline description ("connect your calendar") is marketing copy for
the feature; the itemised list underneath is the actual grant, and the
two don't always match as closely as the headline implies.
- For each item, ask what the worst plausible use of that specific
permission is — not the intended use the feature describes, the worst
thing that permission alone would technically allow. This is the single
most useful question in the whole exercise, because it's the one that
surfaces genuine overreach.
- Flag anything broader than the feature obviously needs. A feature
that reads your calendar to suggest meeting times doesn't obviously need
permission to delete events; if the list grants that anyway, that's
worth noticing even if you end up accepting it.
- Watch for phrases that quietly widen scope — "and related data,"
"on your behalf," "associated accounts." These are the places a
permission list expands past what the plain-language description
implied, and they're easy to read past at normal reading speed.
- Re-read the list whenever it changes on an update. A permission list
isn't fixed once you've accepted it the first time — an update can
quietly add scope, and the update prompt is usually even easier to
dismiss without reading than the original one was.
What to skip
Skip accepting a bundled, all-or-nothing permission list without reading it
fully at least once — if you genuinely can't accept the terms without
reading them, that itself is useful information about the trade-off you're
being asked to make. And skip assuming a permission with a familiar-sounding
name grants the same access every time; naming isn't standardised across
platforms, and "read access" from one integration can mean something
meaningfully broader than "read access" from another.
Guardrails
- This read reduces the chance of unpleasant surprise; it doesn't
eliminate it entirely, particularly where a platform's own description
of a permission is itself vague or incomplete.
- Some permission systems genuinely don't offer a narrower grant than the
one on the screen — reading carefully still matters in that case, because
it tells you what you're accepting even when you can't change it, and
informs whether you accept it at all.
- This complements the scope-versus-permissions check elsewhere in this
library rather than replacing it — reading the list carefully tells you
what's granted; comparing it against your intended scope tells you
whether that's too much.
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