# Roadmap: v1.83 Hypothesis Route Transition Discrepancy Surface

## Result

`v1.83` is complete.

## Overview

`v1.83` closed the next post-`v1.82` research-control gap around
hypothesis-aware route transition discrepancy. It derived one bounded
`route_transition_discrepancy` summary from the current route transition
resolution plus upstream route artifacts, surfaced when inconsistent transition
state deserved operator attention through runtime status and replay, and proved
the bounded coexistence path with a dedicated isolated acceptance lane.

**Phases:** 157
**Total Plans:** 1
**Total Tasks:** 2
**Shipped:** 2026-04-12

## Phase Details

### Phase 157: Hypothesis Route Transition Discrepancy Surface

**Goal:** Add one durable route transition-discrepancy summary for the current
handoff state and expose it through runtime/read-path/replay flows without
widening into fresh runtime mutation.

**Plans:** 1 plan

Plans:

- [x] `157-01`: add route transition-discrepancy summary to runtime/replay
  surfaces and isolated acceptance

**Outcome:**

- landed `route_transition_discrepancy` payload construction and rendering on
  the runtime/read-path layer
- surfaced present versus none transition discrepancy through runtime status,
  the runtime protocol note, and replay
- aligned schema, docs, and isolated acceptance coverage for the bounded route
  transition-discrepancy path

## Milestone Summary

**Key Accomplishments:**

- route transition resolution and upstream route artifacts now join into one
  explicit transition-discrepancy summary
- runtime status and replay now keep discrepancy visibility explicit without
  replacing transition resolution or helper mechanisms
- one isolated acceptance lane now proves present versus none
  transition-discrepancy visibility stays declarative and does not widen into
  fresh runtime mutation

**Issues Resolved:**

- closed the gap where operators could see resolved transition state but still
  had to discover inconsistency by manually comparing receipt, intent, and
  active-route surfaces
- closed the gap where route-transition mismatch still had no single explicit
  operator surface

**Issues Deferred:**

- explicit route-transition repair plan after discrepancy is present
- automatic candidate reactivation and parent-topic reintegration mutation
- automatic branch spawning and multi-branch scheduling

**Technical Debt / Honest Gaps:**

- the first slice makes route-transition discrepancy visible, but it does not
  yet surface one explicit bounded repair plan for how the operator should
  resolve the discrepancy

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For current planning state after `v1.83`, continue from the next fresh
milestone definition.
