# Bluefin is a capability system

**URL:** <https://discourse.haskell.org/t/bluefin-is-a-capability-system/14632>\
**Category:** Uncategorized\
**Created:** [September 1, 2026, 7:29am UTC](https://discourse.haskell.org/t/bluefin-is-a-capability-system/14632 "2026-09-01T07:29:01Z")\
**Posts on this page:** 1\
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**Author:** ![tomjaguarpaw](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.haskell.org/tomjaguarpaw/32/1230_2.png) [@tomjaguarpaw](https://discourse.haskell.org/u/tomjaguarpaw)\
**Post date:** [September 1, 2026, 7:29am UTC](https://discourse.haskell.org/t/bluefin-is-a-capability-system/14632/1 "2026-09-01T07:29:01Z")

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I decided I am going to start describing Bluefin as a “capability system”. This article explains why:

- [Bluefin is a capability system](https://h2.jaguarpaw.co.uk/posts/bluefin-capability-system/)

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_[View the full topic](https://discourse.haskell.org/t/bluefin-is-a-capability-system/14632)._