Comparison
Permission sets vs. one connection everyone shares
Two ways to give agents access to your tools. Both work on day one. They come apart on the day something changes.
Standing shared connection
Permission set + one approved session
Credential model
One password shared by everyone and everything
An app login tied to one session
Who decides scope
Whoever configured the connection, once
A person, every time a session opens
Scope over time
Only ever grows — nobody removes a working scope
Shrink-only: a session can lose access, never quietly gain it
When an app updates
New tools from an app update are reachable straight away
New tools hidden, changed tools paused, removed tools stopped, until reviewed
Step-up control
A category is allowed or it is not
One call, pinned to the person, session, tool and exact request
Failure mode
Audit gaps are discovered later, if at all
No record written, no call sent
Evidence
Whatever the app happened to log
A record before every call and a receipt after it
This is a comparison of two architectures, not a comparison of vendors. Neither is exclusive to any product, and nothing here claims the shared approach is impossible to secure.
The tradeoff is structural: a shared connection optimizes for setup speed, and session-specific grants keep "who can do what, and who did this" answerable as the number of agents grows.
Next step
Where to go next
Two readers, two different next steps.