[Integration]: Nickel cron demo — example 07-scheduled-agent-slo

[rosspeili]

Area

core examples (examples/)

Kind

enhancement

Description

End-to-end nickel cron acceptance demo for the design north star (see AURA_PLAN.md): one agent, one daily session, research → validated SQL append by 09:00, tailored-coat response on SLO miss.

Deliver: examples/09-scheduled-agent-slo/ (or flat name after #21 lands). Do not reuse 07-* — taken by 07-observer-presets (shipped PR #43).

• Mock wall clock + mock SQL skill (no live credentials)
• Constitution: goal keywords, schedule window, schema ref on write tool
• Loose → tight → tailored narrative in comments (audit emit → egress deny → escalation stub)
• SLO miss path emits escalation.triggered (or observer equivalent) and surfaces finding in export
• Doc cross-links Onboarding (#13)

Depends on (can stub until shipped):

• Goal drift + schedule SLO draft
• Escalation playbooks draft
• aura report show draft (or export JSON until CLI lands)
• Optional: Capability broker draft for scoped DB token story

Out of scope: Live nickel API, production SQL, Gatekeeper hardware (see Gatekeeper example draft).

Repro or pipeline spec (optional)

No response