# Roadmap: v1.81 Hypothesis Route Transition Receipt Surface

## Result

`v1.81` is complete.

## Overview

`v1.81` closed the next post-`v1.80` research-control gap around
hypothesis-aware route transition receipt. It derived one bounded
`route_transition_receipt` summary from the current route transition intent
plus enacted runtime state, surfaced whether the intended handoff had been
durably recorded through runtime status and replay, and proved the bounded
coexistence path with a dedicated isolated acceptance lane.

**Phases:** 155
**Total Plans:** 1
**Total Tasks:** 2
**Shipped:** 2026-04-12

## Phase Details

### Phase 155: Hypothesis Route Transition Receipt Surface

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

**Plans:** 1 plan

Plans:

- [x] `155-01`: add route transition-receipt summary to runtime/replay
  surfaces and isolated acceptance

**Outcome:**

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

## Milestone Summary

**Key Accomplishments:**

- route transition intent and enacted transition-history state now join into
  one explicit transition-receipt summary
- runtime status and replay now keep the durable receipt location visible
  without replacing transition intent or helper mechanisms
- one isolated acceptance lane now proves pending, recorded, and none
  transition-receipt visibility stays declarative and does not widen into fresh
  runtime mutation

**Issues Resolved:**

- closed the gap where operators could see intended handoff but still had to
  infer whether that handoff had actually been durably recorded
- closed the gap where transition intent and transition-history artifacts still
  had to be mentally stitched together to understand completed handoff state

**Issues Deferred:**

- explicit route-transition resolution surface that reconciles intent, receipt,
  and current active route into one final operator summary
- 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 receipt visible, but it does not yet
  summarize one higher-level resolved transition outcome across intent, receipt,
  and the current active route

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For current planning state after `v1.81`, continue from the next fresh
milestone definition.
