Idea: portable signed approval receipts for agent workflows (draft spec, feedback wanted)

[min9lin9]

OpenSpec treats changes as first-class artifacts. We just published boulder-evidence-format v0: signed approval receipts binding a plan to digests before any execution. Would an export/import adapter fit OpenSpec's archive flow, or do you deliberately keep evidence out of scope?

Spec (2 pages): https://github.com/min9lin9/boulder/blob/v0.1.17/spec/evidence-format/SPEC.md
Happy to adapt - one line on what would make this not worth adopting is genuinely welcome.