Goal

Fix the stale mapped-mixed definition so the exact-ledger framework matches the live tranche-7 row classifications.

Scope

• exact-ledger definition only
• nearby tranche-7 plan wording if it repeats the old narrower meaning

Loaded Skills

• ralph
• major-task
• goal workflow
• learnings-researcher

Constraints

• Keep the change tight
• Do not widen this into another tranche review
• Make the status key explicit enough that future row classifications stop contradicting the legend

Phases

• Load skills and identify the next honest tranche-7 slice
• Create Ralph context snapshot
• Audit current mapped-mixed wording vs live rows
• Implement the wording fix
• Verify, architect-review, deslop, rerun, and clean state

Findings

• mapped-mixed is underdefined in the exact-ledger README
• live tranche-7 rows already use it for mirrored/recovered/explicit-skip splits
• docs/shared/agent-tiers.md is missing in this repo
• docs/solutions/patterns/critical-patterns.md does not exist in this repo

Progress

2026-04-14

• Started the next tranche-7 Ralph slice
• Picked the mapped-mixed definition drift as the next bounded slice
• Created the Ralph snapshot in .omx/context/
• Audited the live rows and found the same broader meaning already in use: mirrored/recovered/explicit-skip subclaims inside one legacy file
• Patched:
  • docs/slate-v2/ledgers/README.md
  • 2026-04-13-slate-v2-full-no-regression-story-plan.md
  • 2026-04-13-slate-v2-add-proof-architecture-plan.md
• Verified:
  • grep sweep confirming the status-key and rules now define mapped-mixed broadly enough for the live tranche-7 rows
• Architect review: APPROVED
• Deslop result:
  • no justified simplifications beyond the landed wording fix
  • reran the consistency sweep after the final edits

Errors

• docs/shared/agent-tiers.md is missing in this repo
• docs/solutions/patterns/critical-patterns.md does not exist in this repo