OS Loop Retro

Timeline

1. 1

   Start

   Ignite — retro mode declared

   No product build; focus on loop health review

2. 2

   20m

   Engine-health + last 5 sessions read

   Hearth Phase 4, Multi-Member, Week-to-Today, os-gate-cleanup, engine-reconciliation

3. 3

   40m

   Analysis surfaced

   What's working, what's theater, what never worked — honest three-bucket read

4. 4

   60m

   Chat + Zeb design brief consumed

   Session Risk Forecast concept, gate evidence taxonomy, trap tiers, E&C split, Release Risk Gate

5. 5

   80m

   Scope decision

   Three targeted changes over five architectural ones — ledger needs more data before forecast earns itself

6. 6

   90m

   Changes shipped

   gate_evidence_type, Archived Traps, inferred_risks in contract + ignition

What shipped

• _SCHEMA.md — gate_evidence_type field added to gate_checks schema with four-value vocabulary: prevented_spin | detected_spin | deterrence_only | ceremonial

• _SCHEMA.md — inferred_risks field added to session_contract schema, documented in declared build fields reference

• ignition.md §5 KNOWN TRAPS — Archived Traps table added (max 10 rows, no-recurrence-in-10-sessions threshold, promote-back-immediately rule)

• ignition.md §5 KNOWN TRAPS — altitude rule updated: 'remove or archive' → 'move to Archived Traps, do not delete'

• ignition.md §3 ORIENTATION — risk inference step added before session_contract: read files_to_read_before_writing before declaring risk_triggers, infer what the code implies