v0.2.16

0.2.16 (2026-07-30)

Features

• add GET /api/previews list-all route, previews.list op, list_previews MCP tool, mullion preview list (#418) (5b13d7d)
• add mullion agent guide doc with SessionStart auto-inject (issue #405) (#419) (8c15e8b)
• add mullion CLI over the control socket (#402) (2bf04cb)
• agent-attribution envelope for subagent hooks, delete fork/join (#416) (1712103)
• auto-detect dev servers in plain sessions and offer to wire up the preview (issue #404) (#422) (3c60c66)
• browser actions over the control socket (#189) (#401) (6b85b4d)
• browser download management (issue #381) (#434) (a21393a)
• browser frame/iframe support via a frame field (issue #382) (#429) (2770d3c)
• hierarchical sidebar + child-panel layout (issues #195, #194) (#430) (1896b4a)
• mullion MCP session/project/preview tools (#406) (aec8e33)
• notification events over the control socket (#188) (#400) (6b65304)
• package and document the mullion CLI (#403) (90f5f70)
• parentSessionId session lineage + agent-spawned child sessions (issue #193, 5.3b) (#426) (90c0e71)
• per-child session control + Phase 5 wrap-up (issue #196, 5.6) (#435) (8e8215f)
• persistent session event history — storage, retention, and query surface (issue #213, 4.7) (#421) (cfed4ce)
• preview-host auth token (issue #383) (#427) (1bc1b54)
• PTY I/O over the control socket (#186) (#399) (c9065a3)
• session lifecycle over the control socket (4.3) (#398) (b88bdd6)
• subagent registry, additive to subagentCount (#417) (5ef34f4)
• subagent rows in sidebar + timeline grouping by subagent (#425) (7496227)
• Unix control socket transport (4.1) (#396) (2c4acad)

Bug Fixes

• MCP browser_action hook path missing fill/snapshot/eval/screenshot (#424) (04873a2)
• mullion CLI browser validation gaps and resolveAndAttach sessionId guard (#411) (80b908e)