Implemented new campaign/session stable inputs and corresponding input source references

internal/artifactpolicy/policy.go

@@ -13,6 +13,10 @@ import (
 const (
 	SourceBoundsSession = "narratio.bounds.session"
 
+	SourceInputPlayers  = "narratio.input.players"
+	SourceInputParty    = "narratio.input.party"
+	SourceInputGlossary = "narratio.input.glossary"
+
 	configuredSourcePrefix      = "narratio.artifact."
 	previousConfiguredSrcPrefix = "narratio.previous_session.artifact."
 )
@@ -31,6 +35,7 @@ const (
 	SourceKindBuiltIn            SourceKind = "built_in"
 	SourceKindConfiguredArtifact SourceKind = "configured_artifact"
 	SourceKindPreviousArtifact   SourceKind = "previous_session_configured_artifact"
+	SourceKindStableInput        SourceKind = "stable_input"
 )
 
 // Source describes one normalized artifact source identifier.
@@ -118,6 +123,11 @@ func DescribeScriptoriumInputSource(source string) (ScriptoriumInputSourceDescri
 	if trimmed == "" {
 		return ScriptoriumInputSourceDescriptor{}, ErrUnsupportedScriptoriumInputSource
 	}
+	if IsStableInputSource(trimmed) {
+		return ScriptoriumInputSourceDescriptor{
+			Source: Source{ID: trimmed, Kind: SourceKindStableInput},
+		}, nil
+	}
 	if strings.HasPrefix(trimmed, "narratio.previous_session.artifact") {
 		descriptor, err := DescribePreviousSessionSource(trimmed)
 		if err != nil {
@@ -140,6 +150,17 @@ func DescribeScriptoriumInputSource(source string) (ScriptoriumInputSourceDescri
 	return ScriptoriumInputSourceDescriptor{Source: classified}, nil
 }
 
+// IsStableInputSource reports whether source is a prepared stable input source
+// available only to Scriptorium input resolution.
+func IsStableInputSource(source string) bool {
+	switch strings.TrimSpace(source) {
+	case SourceInputPlayers, SourceInputParty, SourceInputGlossary:
+		return true
+	default:
+		return false
+	}
+}
+
 // DescribePreviousSessionSource validates a canonical previous-session source id
 // and returns both previous and configured-source vocabulary descriptors.
 func DescribePreviousSessionSource(source string) (PreviousSessionSourceDescriptor, error) {

internal/artifactpolicy/policy_test.go

@@ -112,6 +112,9 @@ func TestDescribeScriptoriumInputSource(t *testing.T) {
 	}{
 		{name: "built in", source: "narratio.transcript.final_trimmed", wantKind: SourceKindBuiltIn},
 		{name: "built in markdown", source: "narratio.transcript.final_markdown", wantKind: SourceKindBuiltIn},
+		{name: "prepared players input", source: "narratio.input.players", wantKind: SourceKindStableInput},
+		{name: "prepared party input", source: "narratio.input.party", wantKind: SourceKindStableInput},
+		{name: "prepared glossary input", source: "narratio.input.glossary", wantKind: SourceKindStableInput},
 		{name: "configured", source: "narratio.artifact.session_recap", wantKind: SourceKindConfiguredArtifact, wantKey: "session_recap"},
 		{name: "previous", source: "narratio.previous_session.artifact.session_recap", wantKind: SourceKindPreviousArtifact, wantKey: "session_recap", wantPrev: true},
 		{name: "invalid previous", source: "narratio.previous_session.artifact.", wantErr: ErrInvalidPreviousSessionSource},