# Roadmap: v1.97 First Positive L0 To L2 Closure

## Result

`v1.97` closed successfully as the first trustworthy positive authoritative-L2
milestone for AITP.

## Phases

- [x] **Phase 171: Formal Positive Lane To Authoritative L2**
- [x] **Phase 171.1: L2 Surface Hardening Under Real Positive/Negative Coexistence**
- [x] **Phase 171.2: Positive Replay And Deferred Mode Routing**

## Delivered Outcome

- one fresh public-front-door `formal_derivation` topic now lands one bounded
  authoritative theorem in canonical `L2`
- repo-local compiled L2 and `consult-l2` expose the same promoted theorem and
  topic-skill projection
- authoritative positive rows and staged `negative_result -> contradiction_watch`
  rows now coexist honestly on the same compiled and consultation surfaces
- the positive-L2 proof now has replay receipts and explicit deferred routing
  notes for the user-requested `HS model` and `LibRPA QSGW` widening work

## Completion Summary

`v1.97` closed by first proving one real positive formal-theory lane can travel
from the public front door into authoritative repo-local canonical `L2`, then
hardening L2 around real positive/negative coexistence, and finally turning the
baseline proof into a replayable package with explicit carry-over routing for
the remaining lanes.

### Phase 171: Formal Positive Lane To Authoritative L2

**Goal:** Take the most mature positive lane from `v1.96` and carry one bounded
positive unit from public bootstrap to authoritative canonical `L2`.
**Depends on:** `v1.96`
**Plans:** 1 plan

Plans:

- [x] `171-01` Run one fresh formal positive lane from public bootstrap to
  authoritative canonical `L2`

**Actual result:** the fresh Jones / von Neumann formal-theory topic landed
`theorem:jones-ch4-finite-product` and
`topic_skill_projection:fresh-jones-finite-dimensional-factor-closure` into
repo-local canonical `L2`, with compiled-report and consultation parity.

### Phase 171.1: L2 Surface Hardening Under Real Positive/Negative Coexistence

**Goal:** Prove that the new authoritative positive unit and the existing
negative-result route can coexist without authority or provenance drift.
**Depends on:** Phase `171`
**Plans:** 1 plan

Plans:

- [x] `171.1-01` Patch and verify L2 compiler and read-path parity under real
  positive/negative coexistence

**Actual result:** the authoritative theorem row and a staged
`negative_result -> contradiction_watch` row now coexist on the same compiled
knowledge report and consultation surfaces without losing authority separation.

### Phase 171.2: Positive Replay And Deferred Mode Routing

**Goal:** Close the positive-L2 proof with replay evidence and route the
remaining mode-specific blockers explicitly.
**Depends on:** Phase `171` and Phase `171.1`
**Plans:** 1 plan

Plans:

- [x] `171.2-01` Close the positive-L2 proof with replay evidence and explicit
  deferred-mode routing

**Actual result:** the positive-L2 proof and coexistence proof now have
mechanical replay receipts, and the `HS model` toy-model lane plus `LibRPA
QSGW` first-principles lane each have explicit blocker and next-action notes.

## Milestone Summary

**Key accomplishments:**

- AITP now has its first real positive authoritative-L2 closure on the public
  route
- repo-local canonical mirrors, compiled reports, and consultation now agree
  on the same bounded theorem landing
- positive and negative real cases now coexist honestly on L2 read surfaces
- the next widening work is routed explicitly to `HS model` and `LibRPA QSGW`
  instead of being left in chat memory

**Issues deferred:**

- one positive `toy_model` authoritative-L2 lane still needs to be proved on
  a bounded `HS model` target
- one positive `first_principles / code_method` authoritative-L2 lane still
  needs to be proved on a bounded `LibRPA QSGW` target

_Archived after milestone closure on 2026-04-14._
