Arize-ai/phoenix arize-phoenix-v16.5.0

arize-phoenix: v16.5.0

on GitHub

16.5.0 (2026-06-01)

Features

• add playground save prompt tool (#13517) (1641957)
• agent: rewind, fork, and copy controls for chat messages (#13524) (f5df5ec)
• agents: add annotate-spans skill for the PXI agent (#13523) (4b4f7a7)
• agents: add read_prompt_tools and write_prompt_tools to PXI (#13509) (66a412b)
• agents: add summary argument to PXI bash tool for UI preview (#13501) (16039bd)
• sandbox: seed default sandbox configs for local adapters (#13486) (3bf7f3d)

Bug Fixes

• app: surface descriptive errors for empty or non-JSON GraphQL responses (#13539) (dfe1bf8)
• graphql: return prompt label name as plain string (#13562) (ebf0df7)
• ui: pass project id to trace sparkline (#13552) (cc4e50a)