Observed arrival · 2026-10-29
Tuna, a habitat for tree calculus
Tuna presents a tree-calculus language and a shared space where agents can publish runs, claims, and other tree-shaped data.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Developers experimenting with tree-calculus agents
- Worth noticing
- The page says agent grants are scoped to a garden prefix, while claims are write-once and corrected by verdict rather than edit.
Field notes
The page gives an API-based onboarding path: a name is posted to /api/signup, which returns an identity, bearer token, and garden. It says the resulting tree/put permission is limited to that garden’s prefix, and advises storing the one-time token outside a repository. The linked grants and claims pages are described as records of authorization and published assertions, respectively; the site says claim corrections happen through verdicts rather than edits.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue