Expose captured configuration inspection and redacted reports

docs/consumers/pkg-promptkit.md

@@ -78,6 +78,32 @@ explicitly selected missing or unreadable root is an error. Each helper finds
 caller may enable imports on individual inputs. A nil `Sources.Main` is an
 empty main source, not another directory lookup.
 
+## Inspect The Captured Configuration
+
+Use [`Engine.InspectConfiguration`](../../configuration_inspection.go) for an
+operator-selected report of effective configuration, source descriptions,
+diagnostics, and path history. For a literal ID containing a slash, construct
+the semantic path with `configkit.Keys`:
+
+```go
+view, err := engine.InspectConfiguration()
+if err != nil { return err }
+path := configkit.Keys("profiles", "team/summary", "model")
+explanation, found := view.Explain(path)
+if found && explanation.Effective.Redacted {
+	// Apply the application's disclosure policy before sharing the report.
+}
+```
+
+`WriteEffective` and `WriteExplanation` produce ConfigKit-redacted reports;
+the application decides whether those reports may be disclosed. Credential-
+shaped provider keys are redacted, but arbitrary prompt and provider content
+is not necessarily safe to share. Inspection uses the engine's captured result
+and does not reopen sources or resolve credentials. `InspectProfile` instead
+shows backend-completed execution settings for one profile, and `Prepare` or
+`PreparedExecution.Details` shows request-specific rendered messages, inputs,
+and validation resources. None of those views is a substitute for the others.
+
 ## Inspect A Prompt Before Preparation
 
 Use [`Engine.InspectPrompt`](../../engine.go) to check one configured prompt's

docs/roadmap/implementation.md

@@ -522,6 +522,8 @@ No retained callbacks capture ConfigKit resolution contexts or request state.
 
 ## Stage 9 — Expose Explicit Configuration Inspection
 
+**Completed:** 2026-09-30.
+
 Scope: the read-only facade and retained ConfigKit inspection adapter.
 
 1. Implement ConfigurationInspection and its specified methods without exposing