Protect transcript refinement resume semantics

docs/operations.md

@@ -99,14 +99,20 @@ Execution rules:
   repeated self-skip with the same reason and no outputs is stable and does not
   perpetually rerun dependent work.
 
-Prepare, transcribe, and merge currently provide semantic-configuration
-evidence. Changing prepare selection semantics reruns all fixed descendants;
-changing WhisperX language/service identity reuses prepare; and changing a
-Seriatim merge transformation reuses prepare and transcribe. Operational
-timeouts, retry/concurrency tuning, executable paths, workspace/cache/spool
-placement, reports, diagnostics, and secret values are excluded. Configuration,
-models, prompts, modules, or resources loaded privately inside external tools
-remain unobservable to Narratio and require an explicit `--force` after change.
+Prepare through render currently provide semantic-configuration evidence.
+Changing prepare selection semantics reruns all fixed descendants; changing
+WhisperX language/service identity reuses prepare; changing a Seriatim merge
+transformation reuses prepare and transcribe; and changing an Audita model
+reuses prepare, transcribe, and merge while rebuilding transcript refinement.
+A trim change invalidates both render and extract through the fixed dependency
+relation, while a render-only change preserves the extract sibling.
+
+Operational timeouts, retry/concurrency tuning, executable paths,
+workspace/cache/spool placement, reports, diagnostics, and secret values are
+excluded. Configuration, models, prompts, modules, or resources loaded
+privately inside external tools remain unobservable to Narratio. If their
+contents change behind the same configured identifier, explicitly force the
+affected stage.
 
 An explicit self-skip is a durable `skipped` stage outcome that later runs
 reconsider. It differs from successful no-output execution: disabled `render`