Resolve extraction reference bindings from config

docs/internal/pipeline.md

@@ -30,6 +30,14 @@ before execution:
 
 The CLI writes the resolved pipeline and digest to diagnostics.
 
+Pipeline profiles and artifact lanes may include reference binding maps keyed by
+extractor reference slot name. During resolution, pipeline-level bindings act as
+defaults for selected lanes whose extractor declares the slot, lane-level
+bindings override or add lane bindings, and runtime unbinds can remove bindings.
+Resolution validates bindings against extractor specs and records lane-scoped
+binding metadata. It does not read reference files or include reference bytes in
+source digests.
+
 ## Registries And Module Specs
 
 `pipeline.Registries` holds concrete constructors for execution. A

internal/core/config/config.go

@@ -73,6 +73,7 @@ func clonePipelineProfile(in pipeline.PipelineProfile) pipeline.PipelineProfile
 	out.Input = cloneModuleBinding(in.Input)
 	out.Chunk = cloneModuleBinding(in.Chunk)
 	out.Output = cloneModuleBinding(in.Output)
+	out.References = cloneStringMap(in.References)
 	if len(in.Artifacts) > 0 {
 		out.Artifacts = make(map[string]pipeline.ArtifactLaneProfile, len(in.Artifacts))
 		for key, lane := range in.Artifacts {
@@ -87,6 +88,7 @@ func cloneArtifactLaneProfile(in pipeline.ArtifactLaneProfile) pipeline.Artifact
 	out.Extract = cloneModuleBinding(in.Extract)
 	out.Merge = cloneModuleBinding(in.Merge)
 	out.Normalize = cloneModuleBinding(in.Normalize)
+	out.References = cloneStringMap(in.References)
 	if len(in.Validators) > 0 {
 		out.Validators = make([]pipeline.ModuleBinding, len(in.Validators))
 		for i, binding := range in.Validators {
@@ -96,6 +98,17 @@ func cloneArtifactLaneProfile(in pipeline.ArtifactLaneProfile) pipeline.Artifact
 	return out
 }
 
+func cloneStringMap(in map[string]string) map[string]string {
+	if len(in) == 0 {
+		return nil
+	}
+	out := make(map[string]string, len(in))
+	for key, value := range in {
+		out[key] = value
+	}
+	return out
+}
+
 func cloneModuleBinding(in pipeline.ModuleBinding) pipeline.ModuleBinding {
 	out := in
 	if len(in.Options) > 0 {

internal/core/config/effective_config.go

@@ -14,13 +14,17 @@ type ResolveInput struct {
 	Only               []string
 	Catalog            pipeline.ModuleCatalog
 	LLMProfileOverride string
+	ReferenceOverrides []pipeline.ReferenceBinding
+	ReferenceUnbinds   []pipeline.ReferenceUnbind
 }
 
 type EffectiveConfig struct {
-	Config           Config
+	Config             Config
-	PipelineID       string
+	PipelineID         string
-	Only             []string
+	Only               []string
-	ResolvedPipeline pipeline.ResolvedPipeline
+	ReferenceOverrides []pipeline.ReferenceBinding
+	ReferenceUnbinds   []pipeline.ReferenceUnbind
+	ResolvedPipeline   pipeline.ResolvedPipeline
 }
 
 func (c Config) Resolve(input ResolveInput) (EffectiveConfig, error) {
@@ -46,16 +50,22 @@ func (c Config) Resolve(input ResolveInput) (EffectiveConfig, error) {
 		applyLLMProfileOverride(&profile, override)
 	}
 
-	resolved, err := pipeline.ResolvePipeline(profile, pipeline.ResolveOptions{Only: input.Only}, input.Catalog)
+	resolved, err := pipeline.ResolvePipeline(profile, pipeline.ResolveOptions{
+		Only:               input.Only,
+		ReferenceOverrides: append([]pipeline.ReferenceBinding(nil), input.ReferenceOverrides...),
+		ReferenceUnbinds:   append([]pipeline.ReferenceUnbind(nil), input.ReferenceUnbinds...),
+	}, input.Catalog)
 	if err != nil {
 		return EffectiveConfig{}, fmt.Errorf("resolve pipeline %q: %w", pipelineID, err)
 	}
 
 	return EffectiveConfig{
-		Config:           cloneConfig(c),
+		Config:             cloneConfig(c),
-		PipelineID:       pipelineID,
+		PipelineID:         pipelineID,
-		Only:             append([]string(nil), input.Only...),
+		Only:               append([]string(nil), input.Only...),
-		ResolvedPipeline: resolved,
+		ReferenceOverrides: append([]pipeline.ReferenceBinding(nil), input.ReferenceOverrides...),
+		ReferenceUnbinds:   append([]pipeline.ReferenceUnbind(nil), input.ReferenceUnbinds...),
+		ResolvedPipeline:   resolved,
 	}, nil
 }
 

internal/core/config/file_config.go

@@ -35,10 +35,11 @@ type FileLLMProfile struct {
 }
 
 type FilePipelineProfile struct {
-	Input     fileModuleBinding                  `yaml:"input"`
+	Input      fileModuleBinding                  `yaml:"input"`
-	Chunk     *fileModuleBinding                 `yaml:"chunk,omitempty"`
+	Chunk      *fileModuleBinding                 `yaml:"chunk,omitempty"`
-	Artifacts map[string]FileArtifactLaneProfile `yaml:"artifacts,omitempty"`
+	Artifacts  map[string]FileArtifactLaneProfile `yaml:"artifacts,omitempty"`
-	Output    *fileModuleBinding                 `yaml:"output,omitempty"`
+	Output     *fileModuleBinding                 `yaml:"output,omitempty"`
+	References map[string]string                  `yaml:"references,omitempty"`
 }
 
 type FileArtifactLaneProfile struct {
@@ -46,6 +47,7 @@ type FileArtifactLaneProfile struct {
 	Merge      *fileModuleBinding  `yaml:"merge,omitempty"`
 	Normalize  *fileModuleBinding  `yaml:"normalize,omitempty"`
 	Validators []fileModuleBinding `yaml:"validators,omitempty"`
+	References map[string]string   `yaml:"references,omitempty"`
 }
 
 type FileConcurrencyConfig struct {
@@ -212,6 +214,18 @@ func (c *Config) applyFileConfigWithLookup(fileCfg FileConfig, lookup func(strin
 		if _, _, err := normalizedMapKeys(filePipeline.Artifacts, fmt.Sprintf("pipeline %q artifact lane id", pipelineID)); err != nil {
 			return err
 		}
+		if _, _, err := normalizedMapKeys(filePipeline.References, fmt.Sprintf("pipeline %q reference slot", pipelineID)); err != nil {
+			return err
+		}
+		for rawLaneID, fileLane := range filePipeline.Artifacts {
+			laneID := strings.TrimSpace(rawLaneID)
+			if laneID == "" {
+				continue
+			}
+			if _, _, err := normalizedMapKeys(fileLane.References, fmt.Sprintf("pipeline %q lane %q reference slot", pipelineID, laneID)); err != nil {
+				return err
+			}
+		}
 	}
 
 	for _, profileID := range profileIDs {
@@ -253,9 +267,10 @@ func (c *Config) applyFileConfigWithLookup(fileCfg FileConfig, lookup func(strin
 			return err
 		}
 		profile := pipeline.PipelineProfile{
-			ID:        pipelineID,
+			ID:         pipelineID,
-			Input:     filePipeline.Input.toPipelineBinding(),
+			Input:      filePipeline.Input.toPipelineBinding(),
-			Artifacts: make(map[string]pipeline.ArtifactLaneProfile, len(filePipeline.Artifacts)),
+			Artifacts:  make(map[string]pipeline.ArtifactLaneProfile, len(filePipeline.Artifacts)),
+			References: normalizedStringMap(filePipeline.References),
 		}
 		if filePipeline.Chunk != nil {
 			profile.Chunk = filePipeline.Chunk.toPipelineBinding()
@@ -266,7 +281,8 @@ func (c *Config) applyFileConfigWithLookup(fileCfg FileConfig, lookup func(strin
 		for _, laneID := range laneIDs {
 			fileLane := filePipeline.Artifacts[rawLaneIDs[laneID]]
 			lane := pipeline.ArtifactLaneProfile{
-				Extract: fileLane.Extract.toPipelineBinding(),
+				Extract:    fileLane.Extract.toPipelineBinding(),
+				References: normalizedStringMap(fileLane.References),
 			}
 			if fileLane.Merge != nil {
 				lane.Merge = fileLane.Merge.toPipelineBinding()
@@ -318,6 +334,25 @@ func normalizedMapKeys[T any](values map[string]T, keyName string) ([]string, ma
 	return keys, rawByNormalized, nil
 }
 
+func normalizedStringMap(values map[string]string) map[string]string {
+	if len(values) == 0 {
+		return nil
+	}
+	out := make(map[string]string, len(values))
+	keys := make([]string, 0, len(values))
+	rawByNormalized := make(map[string]string, len(values))
+	for rawKey := range values {
+		key := strings.TrimSpace(rawKey)
+		rawByNormalized[key] = rawKey
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	for _, key := range keys {
+		out[key] = strings.TrimSpace(values[rawByNormalized[key]])
+	}
+	return out
+}
+
 func resolveAPIKeyEnv(envName string, lookup func(string) (string, bool)) (string, error) {
 	name := strings.TrimSpace(envName)
 	if name == "" {

internal/core/config/file_config_test.go

@@ -144,6 +144,31 @@ pipelines:
 	}
 }
 
+func TestParseFileConfigReferenceMaps(t *testing.T) {
+	cfg := parseAndApplyConfig(t, `
+version: 1
+pipelines:
+  example:
+    input: fake/input
+    references:
+      " roster ": " ./shared-roster.yml "
+    artifacts:
+      events:
+        extract: fake/extract
+        references:
+          " lore ": " ./lore.md "
+`)
+
+	profile := cfg.Pipelines["example"]
+	if !reflect.DeepEqual(profile.References, map[string]string{"roster": "./shared-roster.yml"}) {
+		t.Fatalf("pipeline references = %#v, want trimmed map", profile.References)
+	}
+	gotLaneRefs := profile.Artifacts["events"].References
+	if !reflect.DeepEqual(gotLaneRefs, map[string]string{"lore": "./lore.md"}) {
+		t.Fatalf("lane references = %#v, want trimmed map", gotLaneRefs)
+	}
+}
+
 func TestParseFileConfigValidatorMixedBindingForms(t *testing.T) {
 	cfg := parseAndApplyConfig(t, `
 version: 1
@@ -297,6 +322,58 @@ pipelines:
 	}
 }
 
+func TestApplyFileConfigRejectsDuplicateTrimmedReferenceSlots(t *testing.T) {
+	tests := []struct {
+		name string
+		raw  string
+		want string
+	}{
+		{
+			name: "pipeline",
+			raw: `
+version: 1
+pipelines:
+  example:
+    input: fake/input
+    references:
+      roster: ./first.yml
+      " roster ": ./second.yml
+`,
+			want: `pipeline "example" reference slot`,
+		},
+		{
+			name: "lane",
+			raw: `
+version: 1
+pipelines:
+  example:
+    input: fake/input
+    artifacts:
+      events:
+        extract: fake/extract
+        references:
+          roster: ./first.yml
+          " roster ": ./second.yml
+`,
+			want: `pipeline "example" lane "events" reference slot`,
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			fileCfg, err := ParseFileConfigYAML([]byte(tc.raw))
+			if err != nil {
+				t.Fatalf("ParseFileConfigYAML: %v", err)
+			}
+			cfg := Default()
+			err = cfg.applyFileConfigWithLookup(fileCfg, emptyLookup)
+			if err == nil || !strings.Contains(err.Error(), tc.want) || !strings.Contains(err.Error(), "duplicated") {
+				t.Fatalf("expected duplicate reference slot error, got %v", err)
+			}
+		})
+	}
+}
+
 func TestApplyFileConfigAllowsRetryOnlyLLMProfile(t *testing.T) {
 	cfg := parseAndApplyConfig(t, `
 version: 1

internal/core/config/redaction.go

@@ -21,10 +21,12 @@ func (c Config) RedactedDiagnosticsPayload() any {
 
 func (e EffectiveConfig) RedactedDiagnosticsPayload() any {
 	return EffectiveConfig{
-		Config:           e.Config.Redacted(),
+		Config:             e.Config.Redacted(),
-		PipelineID:       e.PipelineID,
+		PipelineID:         e.PipelineID,
-		Only:             append([]string(nil), e.Only...),
+		Only:               append([]string(nil), e.Only...),
-		ResolvedPipeline: cloneResolvedPipeline(e.ResolvedPipeline),
+		ReferenceOverrides: append([]pipeline.ReferenceBinding(nil), e.ReferenceOverrides...),
+		ReferenceUnbinds:   append([]pipeline.ReferenceUnbind(nil), e.ReferenceUnbinds...),
+		ResolvedPipeline:   cloneResolvedPipeline(e.ResolvedPipeline),
 	}
 }
 
@@ -47,6 +49,7 @@ func cloneResolvedArtifactLane(in pipeline.ResolvedArtifactLane) pipeline.Resolv
 	out.Extract = cloneModuleBinding(in.Extract)
 	out.Merge = cloneModuleBinding(in.Merge)
 	out.Normalize = cloneModuleBinding(in.Normalize)
+	out.References = append([]pipeline.ReferenceBinding(nil), in.References...)
 	if len(in.Validators) > 0 {
 		out.Validators = make([]pipeline.ModuleBinding, len(in.Validators))
 		for i, binding := range in.Validators {

internal/core/config/redaction_test.go

@@ -3,6 +3,7 @@ package config
 import (
 	"testing"
 
+	"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
 	"gitea.maximumdirect.net/eric/notarius/internal/framework/pipeline"
 )
 
@@ -65,12 +66,21 @@ func TestEffectiveConfigRedactedDiagnosticsPayloadRedactsAndCopies(t *testing.T)
 	cfg.LLMProfiles[pipeline.DefaultLLMProfile] = profile
 	lane := cfg.Pipelines["example"].Artifacts["events"]
 	lane.Extract.Options = map[string]any{"temperature": 0.2}
+	lane.References = map[string]string{"roster": "./roster.yml"}
 	cfg.Pipelines["example"].Artifacts["events"] = lane
 
 	effective, err := cfg.Resolve(ResolveInput{
 		PipelineID: "example",
 		Only:       []string{"events"},
-		Catalog:    fakeCatalog(t),
+		Catalog: fakeCatalog(t, pipeline.ModuleSpec{
+			Key:      "fake/extract",
+			Stage:    pipeline.StageExtract,
+			Requires: []string{"chunks"},
+			Provides: []string{"artifact"},
+			ReferenceSlots: []contracts.ReferenceSlot{
+				{Name: "roster"},
+			},
+		}),
 	})
 	if err != nil {
 		t.Fatalf("Resolve: %v", err)
@@ -98,4 +108,8 @@ func TestEffectiveConfigRedactedDiagnosticsPayloadRedactsAndCopies(t *testing.T)
 	if effective.ResolvedPipeline.ArtifactLanes[0].Extract.Options["temperature"] != 0.2 {
 		t.Fatalf("expected resolved pipeline options to be copied")
 	}
+	payload.ResolvedPipeline.ArtifactLanes[0].References[0].Source = "./changed.yml"
+	if effective.ResolvedPipeline.ArtifactLanes[0].References[0].Source != "./roster.yml" {
+		t.Fatalf("expected resolved pipeline references to be copied")
+	}
 }

internal/core/config/validation.go

@@ -98,11 +98,17 @@ func validatePipelineProfiles(profiles map[string]pipeline.PipelineProfile, llmP
 		if err := validateBindingLLMProfile(id, "", "output", profile.Output, llmProfiles); err != nil {
 			return err
 		}
+		if err := validateReferenceMap(id, "", profile.References); err != nil {
+			return err
+		}
 		for rawLaneID, lane := range profile.Artifacts {
 			laneID := strings.TrimSpace(rawLaneID)
 			if laneID == "" {
 				return fmt.Errorf("pipeline %q artifact lane id must not be empty", id)
 			}
+			if err := validateReferenceMap(id, laneID, lane.References); err != nil {
+				return err
+			}
 			if err := validateBindingLLMProfile(id, laneID, "extract", lane.Extract, llmProfiles); err != nil {
 				return err
 			}
@@ -122,6 +128,33 @@ func validatePipelineProfiles(profiles map[string]pipeline.PipelineProfile, llmP
 	return nil
 }
 
+func validateReferenceMap(pipelineID string, laneID string, references map[string]string) error {
+	seen := make(map[string]struct{}, len(references))
+	for rawSlotName, rawSource := range references {
+		slotName := strings.TrimSpace(rawSlotName)
+		if slotName == "" {
+			if laneID != "" {
+				return fmt.Errorf("pipeline %q lane %q reference slot name must not be empty", pipelineID, laneID)
+			}
+			return fmt.Errorf("pipeline %q reference slot name must not be empty", pipelineID)
+		}
+		if _, ok := seen[slotName]; ok {
+			if laneID != "" {
+				return fmt.Errorf("pipeline %q lane %q reference slot %q is duplicated after trimming", pipelineID, laneID, slotName)
+			}
+			return fmt.Errorf("pipeline %q reference slot %q is duplicated after trimming", pipelineID, slotName)
+		}
+		seen[slotName] = struct{}{}
+		if strings.TrimSpace(rawSource) == "" {
+			if laneID != "" {
+				return fmt.Errorf("pipeline %q lane %q reference slot %q source must not be empty", pipelineID, laneID, slotName)
+			}
+			return fmt.Errorf("pipeline %q reference slot %q source must not be empty", pipelineID, slotName)
+		}
+	}
+	return nil
+}
+
 func validateBindingLLMProfile(
 	pipelineID string,
 	laneID string,

internal/core/config/validation_test.go

@@ -116,6 +116,73 @@ func TestValidateRejectsInvalidDiagnosticsRetention(t *testing.T) {
 	}
 }
 
+func TestValidateRejectsInvalidReferenceMaps(t *testing.T) {
+	tests := []struct {
+		name   string
+		mutate func(Config) Config
+		want   []string
+	}{
+		{
+			name: "empty pipeline slot",
+			mutate: func(cfg Config) Config {
+				profile := cfg.Pipelines["example"]
+				profile.References = map[string]string{" ": "./roster.yml"}
+				cfg.Pipelines["example"] = profile
+				return cfg
+			},
+			want: []string{"example", "reference slot", "empty"},
+		},
+		{
+			name: "empty pipeline source",
+			mutate: func(cfg Config) Config {
+				profile := cfg.Pipelines["example"]
+				profile.References = map[string]string{"roster": " "}
+				cfg.Pipelines["example"] = profile
+				return cfg
+			},
+			want: []string{"example", "roster", "source", "empty"},
+		},
+		{
+			name: "empty lane slot",
+			mutate: func(cfg Config) Config {
+				profile := cfg.Pipelines["example"]
+				lane := profile.Artifacts["events"]
+				lane.References = map[string]string{" ": "./roster.yml"}
+				profile.Artifacts["events"] = lane
+				cfg.Pipelines["example"] = profile
+				return cfg
+			},
+			want: []string{"example", "events", "reference slot", "empty"},
+		},
+		{
+			name: "empty lane source",
+			mutate: func(cfg Config) Config {
+				profile := cfg.Pipelines["example"]
+				lane := profile.Artifacts["events"]
+				lane.References = map[string]string{"roster": " "}
+				profile.Artifacts["events"] = lane
+				cfg.Pipelines["example"] = profile
+				return cfg
+			},
+			want: []string{"example", "events", "roster", "source", "empty"},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			err := tc.mutate(validConfig()).Validate()
+			if err == nil {
+				t.Fatal("Validate() error = nil, want error")
+			}
+			for _, want := range tc.want {
+				if !strings.Contains(err.Error(), want) {
+					t.Fatalf("Validate() error = %q, want substring %q", err.Error(), want)
+				}
+			}
+		})
+	}
+}
+
 func TestValidateRejectsEmptyIDs(t *testing.T) {
 	tests := []struct {
 		name   string

internal/framework/pipeline/profile.go

@@ -7,6 +7,8 @@ import (
 	"fmt"
 	"sort"
 	"strings"
+
+	"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
 )
 
 const (
@@ -24,22 +26,38 @@ type ModuleBinding struct {
 }
 
 type ArtifactLaneProfile struct {
-	Extract    ModuleBinding   `json:"extract"`
+	Extract    ModuleBinding     `json:"extract"`
-	Merge      ModuleBinding   `json:"merge,omitempty"`
+	Merge      ModuleBinding     `json:"merge,omitempty"`
-	Normalize  ModuleBinding   `json:"normalize,omitempty"`
+	Normalize  ModuleBinding     `json:"normalize,omitempty"`
-	Validators []ModuleBinding `json:"validators,omitempty"`
+	Validators []ModuleBinding   `json:"validators,omitempty"`
+	References map[string]string `json:"references,omitempty"`
 }
 
 type PipelineProfile struct {
-	ID        string                         `json:"id"`
+	ID         string                         `json:"id"`
-	Input     ModuleBinding                  `json:"input"`
+	Input      ModuleBinding                  `json:"input"`
-	Chunk     ModuleBinding                  `json:"chunk,omitempty"`
+	Chunk      ModuleBinding                  `json:"chunk,omitempty"`
-	Artifacts map[string]ArtifactLaneProfile `json:"artifacts"`
+	Artifacts  map[string]ArtifactLaneProfile `json:"artifacts"`
-	Output    ModuleBinding                  `json:"output,omitempty"`
+	Output     ModuleBinding                  `json:"output,omitempty"`
+	References map[string]string              `json:"references,omitempty"`
 }
 
 type ResolveOptions struct {
-	Only []string
+	Only               []string
+	ReferenceOverrides []ReferenceBinding
+	ReferenceUnbinds   []ReferenceUnbind
+}
+
+type ReferenceBinding struct {
+	LaneID        string `json:"lane_id,omitempty"`
+	SlotName      string `json:"slot_name"`
+	Source        string `json:"source"`
+	BindingSource string `json:"binding_source,omitempty"`
+}
+
+type ReferenceUnbind struct {
+	LaneID   string `json:"lane_id"`
+	SlotName string `json:"slot_name"`
 }
 
 type ResolvedArtifactLane struct {
@@ -48,6 +66,7 @@ type ResolvedArtifactLane struct {
 	Merge      ModuleBinding
 	Normalize  ModuleBinding
 	Validators []ModuleBinding
+	References []ReferenceBinding `json:"references,omitempty"`
 }
 
 type ResolvedPipeline struct {
@@ -126,7 +145,7 @@ func ResolvePipeline(profile PipelineProfile, options ResolveOptions, catalog Mo
 
 	for _, laneID := range selectedLaneIDs {
 		laneProfile := lanesByID[laneID]
-		lane, laneCapabilities, err := resolveArtifactLane(pipelineID, laneID, laneProfile, capabilities, catalog)
+		lane, laneCapabilities, err := resolveArtifactLane(pipelineID, laneID, laneProfile, profile.References, options, capabilities, catalog)
 		if err != nil {
 			return ResolvedPipeline{}, err
 		}
@@ -150,7 +169,15 @@ func ResolvePipeline(profile PipelineProfile, options ResolveOptions, catalog Mo
 	return resolved, nil
 }
 
-func resolveArtifactLane(pipelineID, laneID string, profile ArtifactLaneProfile, inherited capabilitySet, catalog ModuleCatalog) (ResolvedArtifactLane, capabilitySet, error) {
+func resolveArtifactLane(
+	pipelineID string,
+	laneID string,
+	profile ArtifactLaneProfile,
+	pipelineReferences map[string]string,
+	options ResolveOptions,
+	inherited capabilitySet,
+	catalog ModuleCatalog,
+) (ResolvedArtifactLane, capabilitySet, error) {
 	lane := ResolvedArtifactLane{
 		ID:         laneID,
 		Extract:    resolveBinding(profile.Extract, ""),
@@ -171,6 +198,11 @@ func resolveArtifactLane(pipelineID, laneID string, profile ArtifactLaneProfile,
 	if missing, ok := capabilities.missing(extractSpec.Requires); ok {
 		return ResolvedArtifactLane{}, nil, capabilityError(pipelineID, laneID, StageExtract, lane.Extract.Module, missing)
 	}
+	references, err := resolveReferenceBindings(pipelineID, laneID, lane.Extract.Module, extractSpec.ReferenceSlots, pipelineReferences, profile.References, options)
+	if err != nil {
+		return ResolvedArtifactLane{}, nil, err
+	}
+	lane.References = references
 	capabilities.add(extractSpec.Provides...)
 
 	mergeSpec, err := mergerSpec(catalog, lane.Merge.Module)
@@ -205,6 +237,162 @@ func resolveArtifactLane(pipelineID, laneID string, profile ArtifactLaneProfile,
 	return lane, capabilities, nil
 }
 
+func resolveReferenceBindings(
+	pipelineID string,
+	laneID string,
+	extractorModule string,
+	slots []contracts.ReferenceSlot,
+	pipelineReferences map[string]string,
+	laneReferences map[string]string,
+	options ResolveOptions,
+) ([]ReferenceBinding, error) {
+	slotByName := make(map[string]contracts.ReferenceSlot, len(slots))
+	for _, slot := range slots {
+		slotByName[slot.Name] = slot
+	}
+
+	bindings := make(map[string]ReferenceBinding)
+	addBinding := func(slotName, source, bindingSource string) error {
+		slotName = strings.TrimSpace(slotName)
+		source = strings.TrimSpace(source)
+		if slotName == "" {
+			return fmt.Errorf("pipeline %q lane %q reference slot name must not be empty", pipelineID, laneID)
+		}
+		if source == "" {
+			return fmt.Errorf("pipeline %q lane %q reference slot %q source must not be empty", pipelineID, laneID, slotName)
+		}
+		if _, ok := slotByName[slotName]; !ok {
+			return fmt.Errorf("pipeline %q lane %q reference slot %q is not declared by extractor %q", pipelineID, laneID, slotName, extractorModule)
+		}
+		bindings[slotName] = ReferenceBinding{
+			LaneID:        laneID,
+			SlotName:      slotName,
+			Source:        source,
+			BindingSource: bindingSource,
+		}
+		return nil
+	}
+
+	normalizedPipelineReferences, err := normalizedReferenceMap(pipelineReferences, fmt.Sprintf("pipeline %q reference slot", pipelineID))
+	if err != nil {
+		return nil, err
+	}
+	for _, slotName := range sortedStringMapKeys(normalizedPipelineReferences) {
+		if _, ok := slotByName[slotName]; !ok {
+			continue
+		}
+		if err := addBinding(slotName, normalizedPipelineReferences[slotName], contracts.ReferenceBindingSourceConfig); err != nil {
+			return nil, err
+		}
+	}
+
+	normalizedLaneReferences, err := normalizedReferenceMap(laneReferences, fmt.Sprintf("pipeline %q lane %q reference slot", pipelineID, laneID))
+	if err != nil {
+		return nil, err
+	}
+	for _, slotName := range sortedStringMapKeys(normalizedLaneReferences) {
+		if err := addBinding(slotName, normalizedLaneReferences[slotName], contracts.ReferenceBindingSourceConfig); err != nil {
+			return nil, err
+		}
+	}
+
+	for _, override := range options.ReferenceOverrides {
+		optionLaneID := strings.TrimSpace(override.LaneID)
+		if optionLaneID == "" {
+			return nil, fmt.Errorf("pipeline %q reference override lane id must not be empty", pipelineID)
+		}
+		if optionLaneID != laneID {
+			continue
+		}
+		source := override.BindingSource
+		if strings.TrimSpace(source) == "" {
+			source = contracts.ReferenceBindingSourceCLI
+		}
+		if err := addBinding(override.SlotName, override.Source, strings.TrimSpace(source)); err != nil {
+			return nil, err
+		}
+	}
+
+	for _, unbind := range options.ReferenceUnbinds {
+		optionLaneID := strings.TrimSpace(unbind.LaneID)
+		if optionLaneID == "" {
+			return nil, fmt.Errorf("pipeline %q reference unbind lane id must not be empty", pipelineID)
+		}
+		if optionLaneID != laneID {
+			continue
+		}
+		slotName := strings.TrimSpace(unbind.SlotName)
+		if slotName == "" {
+			return nil, fmt.Errorf("pipeline %q lane %q reference unbind slot name must not be empty", pipelineID, laneID)
+		}
+		if _, ok := slotByName[slotName]; !ok {
+			return nil, fmt.Errorf("pipeline %q lane %q reference slot %q is not declared", pipelineID, laneID, slotName)
+		}
+		delete(bindings, slotName)
+	}
+
+	for _, slot := range slots {
+		if slot.Required {
+			if _, ok := bindings[slot.Name]; !ok {
+				return nil, fmt.Errorf("pipeline %q lane %q required reference slot %q is not bound", pipelineID, laneID, slot.Name)
+			}
+		}
+	}
+
+	keys := sortedReferenceBindingKeys(bindings)
+	resolved := make([]ReferenceBinding, 0, len(keys))
+	for _, slotName := range keys {
+		resolved = append(resolved, bindings[slotName])
+	}
+	return resolved, nil
+}
+
+func normalizedReferenceMap(values map[string]string, keyName string) (map[string]string, error) {
+	if len(values) == 0 {
+		return nil, nil
+	}
+	out := make(map[string]string, len(values))
+	for rawSlotName, rawSource := range values {
+		slotName := strings.TrimSpace(rawSlotName)
+		if slotName == "" {
+			return nil, fmt.Errorf("%s must not be empty", keyName)
+		}
+		if _, ok := out[slotName]; ok {
+			return nil, fmt.Errorf("%s %q is duplicated after trimming", keyName, slotName)
+		}
+		source := strings.TrimSpace(rawSource)
+		if source == "" {
+			return nil, fmt.Errorf("%s %q source must not be empty", keyName, slotName)
+		}
+		out[slotName] = source
+	}
+	return out, nil
+}
+
+func sortedStringMapKeys(values map[string]string) []string {
+	if len(values) == 0 {
+		return nil
+	}
+	keys := make([]string, 0, len(values))
+	for key := range values {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+func sortedReferenceBindingKeys(values map[string]ReferenceBinding) []string {
+	if len(values) == 0 {
+		return nil
+	}
+	keys := make([]string, 0, len(values))
+	for key := range values {
+		keys = append(keys, key)
+	}
+	sort.Strings(keys)
+	return keys
+}
+
 func resolveBinding(binding ModuleBinding, defaultModule string) ModuleBinding {
 	module := strings.TrimSpace(binding.Module)
 	if module == "" {

internal/framework/pipeline/profile_test.go

@@ -3,6 +3,7 @@ package pipeline
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"reflect"
 	"strings"
 	"testing"
@@ -125,6 +126,137 @@ func TestResolvePipelineSelectsOnlyRequestedLanes(t *testing.T) {
 	}
 }
 
+func TestResolvePipelineAppliesReferenceBindings(t *testing.T) {
+	profile := multiLaneProfile()
+	profile.References = map[string]string{
+		" roster ":  " ./shared-roster.yml ",
+		"unclaimed": "./ignored.yml",
+	}
+	lane := profile.Artifacts["events"]
+	lane.References = map[string]string{
+		"roster": "./lane-roster.yml",
+		" lore ": " ./lore.md ",
+	}
+	profile.Artifacts["events"] = lane
+
+	catalog := newProfileCatalogWithOverride(t, ModuleSpec{
+		Key:      "event-extractor",
+		Stage:    StageExtract,
+		Requires: []string{"chunk"},
+		Provides: []string{"candidate"},
+		ReferenceSlots: []contracts.ReferenceSlot{
+			{Name: "roster", Required: true},
+			{Name: "lore"},
+		},
+	})
+	resolved, err := ResolvePipeline(profile, ResolveOptions{Only: []string{"events", "summaries"}}, catalog)
+	if err != nil {
+		t.Fatalf("ResolvePipeline() error = %v, want nil", err)
+	}
+
+	events := resolvedLane(t, resolved.ArtifactLanes, "events")
+	want := []ReferenceBinding{
+		{LaneID: "events", SlotName: "lore", Source: "./lore.md", BindingSource: contracts.ReferenceBindingSourceConfig},
+		{LaneID: "events", SlotName: "roster", Source: "./lane-roster.yml", BindingSource: contracts.ReferenceBindingSourceConfig},
+	}
+	if !reflect.DeepEqual(events.References, want) {
+		t.Fatalf("events references = %#v, want %#v", events.References, want)
+	}
+	summaries := resolvedLane(t, resolved.ArtifactLanes, "summaries")
+	if len(summaries.References) != 0 {
+		t.Fatalf("summaries references = %#v, want none", summaries.References)
+	}
+}
+
+func TestResolvePipelineRejectsUndeclaredReferenceSlot(t *testing.T) {
+	profile := baselineProfile()
+	lane := profile.Artifacts["events"]
+	lane.References = map[string]string{"missing": "./missing.yml"}
+	profile.Artifacts["events"] = lane
+
+	_, err := ResolvePipeline(profile, ResolveOptions{}, newProfileCatalog(t))
+	if err == nil {
+		t.Fatal("ResolvePipeline() error = nil, want error")
+	}
+	assertErrorContains(t, err, "events", "missing", "not declared")
+}
+
+func TestResolvePipelineRequiresBoundReferenceSlotsForSelectedLanes(t *testing.T) {
+	catalog := newProfileCatalogWithOverride(t, ModuleSpec{
+		Key:      "event-extractor",
+		Stage:    StageExtract,
+		Requires: []string{"chunk"},
+		Provides: []string{"candidate"},
+		ReferenceSlots: []contracts.ReferenceSlot{
+			{Name: "roster", Required: true},
+		},
+	})
+
+	if _, err := ResolvePipeline(multiLaneProfile(), ResolveOptions{Only: []string{"notes"}}, catalog); err != nil {
+		t.Fatalf("ResolvePipeline(unselected required slot) error = %v, want nil", err)
+	}
+
+	_, err := ResolvePipeline(multiLaneProfile(), ResolveOptions{Only: []string{"events"}}, catalog)
+	if err == nil {
+		t.Fatal("ResolvePipeline(selected required slot) error = nil, want error")
+	}
+	assertErrorContains(t, err, "events", "required", "roster", "not bound")
+}
+
+func TestResolvePipelineReferenceUnbindCanLeaveRequiredSlotMissing(t *testing.T) {
+	profile := baselineProfile()
+	profile.References = map[string]string{"roster": "./roster.yml"}
+	catalog := newProfileCatalogWithOverride(t, ModuleSpec{
+		Key:      "event-extractor",
+		Stage:    StageExtract,
+		Requires: []string{"chunk"},
+		Provides: []string{"candidate"},
+		ReferenceSlots: []contracts.ReferenceSlot{
+			{Name: "roster", Required: true},
+		},
+	})
+
+	_, err := ResolvePipeline(profile, ResolveOptions{
+		ReferenceUnbinds: []ReferenceUnbind{{LaneID: "events", SlotName: "roster"}},
+	}, catalog)
+	if err == nil {
+		t.Fatal("ResolvePipeline() error = nil, want error")
+	}
+	assertErrorContains(t, err, "events", "required", "roster", "not bound")
+}
+
+func TestResolvePipelineUsesReferenceSlotsFromSpecWithoutConstructingExtractor(t *testing.T) {
+	profile := baselineProfile()
+	profile.References = map[string]string{"roster": "./roster.yml"}
+	catalog := emptyProfileCatalog()
+	for _, spec := range defaultProfileSpecs() {
+		if spec.Key != "event-extractor" {
+			registerProfileSpecs(t, catalog, spec)
+		}
+	}
+	if err := catalog.Extractors.RegisterWithSpec(ModuleSpec{
+		Key:      "event-extractor",
+		Stage:    StageExtract,
+		Requires: []string{"chunk"},
+		Provides: []string{"candidate"},
+		ReferenceSlots: []contracts.ReferenceSlot{
+			{Name: "roster", Required: true},
+		},
+	}, func() (contracts.Extractor, error) {
+		return nil, errors.New("constructor should not run")
+	}); err != nil {
+		t.Fatalf("RegisterWithSpec() error = %v, want nil", err)
+	}
+
+	resolved, err := ResolvePipeline(profile, ResolveOptions{}, catalog)
+	if err != nil {
+		t.Fatalf("ResolvePipeline() error = %v, want nil", err)
+	}
+	if got := resolved.ArtifactLanes[0].References[0].Source; got != "./roster.yml" {
+		t.Fatalf("reference source = %q, want ./roster.yml", got)
+	}
+}
+
 func TestResolvePipelineRejectsUnknownOnlyLane(t *testing.T) {
 	_, err := ResolvePipeline(multiLaneProfile(), ResolveOptions{Only: []string{"missing"}}, newProfileCatalog(t))
 	if err == nil {
@@ -463,6 +595,17 @@ func laneIDs(lanes []ResolvedArtifactLane) []string {
 	return ids
 }
 
+func resolvedLane(t *testing.T, lanes []ResolvedArtifactLane, laneID string) ResolvedArtifactLane {
+	t.Helper()
+	for _, lane := range lanes {
+		if lane.ID == laneID {
+			return lane
+		}
+	}
+	t.Fatalf("lane %q not found in %#v", laneID, laneIDs(lanes))
+	return ResolvedArtifactLane{}
+}
+
 func assertErrorContains(t *testing.T, err error, values ...string) {
 	t.Helper()