Clarify clean-room consolidation to implementation reuse

docs/HYPERTWIST_MODEL_A_MODEL_B_COORDINATOR_DOCTRINE_2026-05-14.md

@@ -164,6 +164,16 @@ For the current clean-room sequence:
     broader first-party issue outside the lane owner surface
 - the coordinating instance must not allow silent multi-bound widening in one
   pass merely because a clean implementation thread is already open
+- the coordinating instance may allow the same clean `Model B` instance,
+  including the clean coordinating instance, to perform repo-local
+  consolidation and then the immediately following bounded implementation pass
+  for one repo
+- the coordinating instance may also allow the same clean `Model B` instance
+  to run a targeted cross-lane checkpoint and then the immediately following
+  bounded implementation pass for one explicitly selected affected repo
+- that reuse is legal only if the conversation remained clean, the standing
+  reconciled note or checkpoint note was written first, and the repo and bound
+  were explicitly selected before coding
 - shared cross-lane reconciliation is an exception checkpoint, not the default
   immediate next step after every contribution pass
 - repo-local and shared reconciliation are additive, not reset-oriented

docs/HYPERTWIST_PHASE_5R_CLEAN_ROOM_PROMPT_AND_HANDOFF_PACKET_2026-05-14.md

@@ -173,16 +173,19 @@ Clean `Model B` contributor:
 
 Clean `Model B` consolidation:
 
-- one fresh clean repo-local thread per repo
+- by default one fresh clean repo-local thread per repo
 - no primer by default
 - starts directly from the repo-local consolidation prompt inside the repo's
   sequence file
 - reads the repo's scrubbed `Model A` handoff plus that repo's clean `Model B`
   staged notes
+- may continue directly into the first bounded implementation pass for that
+  same repo if the conversation stayed clean, the standing reconciled note is
+  written first, and the repo and bound are explicitly selected before coding
 
 Shared optional clean `Model B` cross-lane reconciliation:
 
-- one fresh clean thread only when needed
+- by default one fresh clean thread only when needed
 - no primer by default
 - starts directly from the shared `0500` prompt
 - reads only the affected repos' handoffs, standing reconciled notes, and
@@ -191,10 +194,14 @@ Shared optional clean `Model B` cross-lane reconciliation:
   notes for the lanes in scope
 - must not silently drop earlier valid effort; any supersession or deferral
   must be explicit
+- may continue directly into the first bounded implementation pass for one
+  explicitly selected affected repo if the checkpoint concludes that
+  implementation may proceed and the conversation stayed clean
 
 Clean `Model B` bounded implementation:
 
-- one fresh clean thread
+- begins either in one fresh clean thread or as an immediate continuation from
+  the same repo's clean consolidation thread or targeted checkpoint thread
 - one repo at a time
 - one bound at a time
 - no primer by default
@@ -205,6 +212,9 @@ Clean `Model B` bounded implementation:
 - lower-friction route may reuse the same clean bounded implementation
   conversation for the immediately next bound only after the prior result has
   been reviewed and the next bound has been explicitly selected
+- the clean coordinating instance may serve as consolidation instance and
+  immediate implementation instance if it has remained clean and has not been
+  source-exposed
 
 ## Primer rule
 
@@ -232,6 +242,10 @@ Default operator flow:
 3. complete clean `Model B` primer and contribution
 4. complete repo-local consolidation for that repo
 5. implement that repo one bound at a time
+   - safest route: open a fresh clean bounded implementation conversation
+   - lower-friction route: let the same clean consolidation or targeted
+     checkpoint conversation continue directly into the first bounded
+     implementation pass for that repo
 
 After each bounded run, stop and choose the next route explicitly rather than
 auto-continuing into additional bounds.
@@ -415,8 +429,11 @@ Topology rules:
 - one clean Model B contributor thread per restrictive repo
 - contributor thread gets primer first, then contribution prompt, in the same clean conversation
 - shared consolidation is one fresh clean thread and does not get the primer by default
-- bounded implementation starts in one fresh clean thread per repo and does
-  not get the primer by default
+- bounded implementation starts in one fresh clean thread per repo by default
+  and does not get the primer by default
+- the same clean consolidation or targeted checkpoint conversation may instead
+  continue directly into the first bounded implementation pass for one repo if
+  the cleanliness and explicit-decision conditions are met
 - after review, the same clean implementation thread may be reused for the
   immediately next bound, but one run still equals one bound
 
@@ -450,7 +467,9 @@ If the next step is cross-lane consolidation:
 
 If the next step is bounded implementation:
 
-- start a fresh clean conversation
+- either start a fresh clean conversation or continue directly from the same
+  repo's clean consolidation or targeted checkpoint conversation if it stayed
+  clean and the repo and bound have been explicitly selected
 - use only the repo-specific bounded implementation prompt
 - implement one bound only