Finalize Promptkit migration documentation

docs/roadmap/implementation.md

@@ -1,21 +1,19 @@
 # Promptkit Migration Implementation Plan
 
-Status: Stages 1–11 completed; audit remediation in Stages 12–19 remains.
+Status: Completed; Stages 1–19 passed their exit gates.
 
 ## Purpose And Authority
 
 This document records the completed implementation of the
-[Promptkit migration roadmap](promptkit.md) and defines the ordered follow-up
-work required by the post-implementation audit. The feature roadmap remains
-authoritative for scope, user intent, policy choices, and the desired end
-state. This plan is authoritative for implementation sequence, tests, and
-completion gates.
+[Promptkit migration roadmap](promptkit.md) and its post-implementation audit
+remediation. The feature roadmap records scope, user intent, policy choices,
+and the implemented end state. This plan records implementation sequence,
+tests, and completion gates.
 
-Follow Stages 12–19 in order, using one implementation prompt per stage. A
-stage may fix additional defects exposed by its required tests when those
-defects are within the same stated contract. Do not expand a stage into new
-product behavior or reinterpret a roadmap decision to accommodate the current
-implementation.
+Stages 12–19 were completed in order. They fixed additional defects exposed by
+their required tests only when those defects were within the same stated
+contract; they did not add new product behavior or reinterpret roadmap
+decisions.
 
 This plan follows the repository's
 [architecture](../policy/architecture.md),
@@ -71,11 +69,24 @@ The post-implementation audit confirmed the principal dependency and package
 boundaries, but found incorrect reached-path bookkeeping, incomplete execution
 artifact updates, insufficient artifact validation, extensive loss of
 behavioral tests during the final cutover, and roadmap lifecycle text that was
-not finalized. The remaining stages address those findings without changing
-the intended feature scope.
+not finalized. The completed remediation addressed those findings without
+changing the intended feature scope.
+
+| Stage | Completed outcome |
+| --- | --- |
+| 12 | Corrected reached-path bookkeeping across metadata, app results, batch items, and CLI summaries. |
+| 13 | Hardened Promptkit-era durable state validation and restored v1/v2 state coverage. |
+| 14 | Recorded every downstream path reached after completed prompt execution. |
+| 15 | Restored assembled single-report behavioral and failure coverage. |
+| 16 | Simplified prompt-generation orchestration while preserving behavior. |
+| 17 | Restored assembled batch, planning, artifact, and notification coverage. |
+| 18 | Restored supported CLI, summary, safety, and historical inspection coverage. |
+| 19 | Reconciled canonical documentation and passed the complete repository verification gate. |
 
 ## Stage 12: Correct Reached-Artifact Bookkeeping
 
+Status: Completed.
+
 ### Goal
 
 Make metadata, app results, batch items, and CLI summaries truthful at every
@@ -138,6 +149,8 @@ result.
 
 ## Stage 13: Harden Durable State Contracts And Restore State Coverage
 
+Status: Completed.
+
 ### Goal
 
 Make the v1/v2 wire boundary and Promptkit-era artifact validation explicit,
@@ -206,6 +219,8 @@ offline coverage for its durable compatibility and filesystem contracts.
 
 ## Stage 14: Complete Execution-Artifact Path Tracking
 
+Status: Completed.
+
 ### Goal
 
 Make `PromptExecutionArtifact.Paths` accurately record every downstream
@@ -267,6 +282,8 @@ when a later application stage fails.
 
 ## Stage 15: Restore Single-Report Behavioral Coverage
 
+Status: Completed.
+
 ### Goal
 
 Restore the risk-based application coverage removed during final cutover and
@@ -325,6 +342,8 @@ debug isolation, output copying, and notification behavior.
 
 ## Stage 16: Refactor Prompt Generation Orchestration
 
+Status: Completed.
+
 ### Goal
 
 Reduce the complexity and duplicated persistence logic in
@@ -374,6 +393,8 @@ and every Stage 12–15 behavioral test passes unchanged.
 
 ## Stage 17: Restore Batch Behavioral Coverage
 
+Status: Completed.
+
 ### Goal
 
 Re-establish confidence that morning and evening batches preserve their
@@ -421,6 +442,8 @@ artifact, and notification contracts with one Promptkit executor.
 
 ## Stage 18: Restore CLI And Inspection Coverage
 
+Status: Completed.
+
 ### Goal
 
 Restore the user-facing command, summary, and historical inspection contracts
@@ -464,6 +487,8 @@ composition, and v1/v2 inspection behavior have deterministic offline coverage.
 
 ## Stage 19: Finalize Documentation And Repository Verification
 
+Status: Completed.
+
 ### Goal
 
 Close the audit remediation, make roadmap lifecycle state truthful, and verify
@@ -526,5 +551,5 @@ documents are marked complete.
 
 ## Open Questions
 
-None. The roadmap and this follow-up plan contain the decisions required to
-complete the audit remediation.
+None. The roadmap and this completed plan record the decisions used for the
+audit remediation.