Evidence record / eve
A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.
2026-09-21-eve-breaking-capability-moves-persistent-subagents-by-default-one-workflow-sessions-workflow
Breaking capability moves: persistent subagents by default, one-workflow sessions, workflow-only background tools. Durable human pauses became a tool-level primitive
(ask() inside a workflow tool), subagents remember by default, and the
execution model changed under running sessions.
Channel: tagged-release. Half: capability. Date: 2026-08-26 to 2026-09-19.
Operator consequence: Do not roll back across 0.57.0 with live sessions. If you need data minimization, 0.53.1 retention 0 is the first knob that deletes workflow payloads at run end. Answers the contract’s primitive-stability question: sessions, subagents, and background tools were all still breaking in September; watch-only as architecture precedent.
Receipt
Finding metadata
Run: 2026-09-21-weekly-digest-2026-08-20_2026-09-21-frontier-v0
Finding ID: 2026-09-21-eve-breaking-capability-moves-persistent-subagents-by-default-one-workflow-sessions-workflow
Profile citations
- Eve / claim / breaking-execution-model
Source links
Primary links, including exact changelog lines when available.
Versioned source: run artifact