Build evidence context for output encoders

This commit is contained in:
2026-07-27 18:17:54 +00:00
parent a4c7eca87b
commit e61e522662
4 changed files with 371 additions and 0 deletions

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@@ -292,6 +292,7 @@ type OutputRequest struct {
LLMProfile string `json:"llm_profile,omitempty"`
Metadata map[string]any `json:"metadata,omitempty"`
ChunkMap *SerializedArtifact `json:"chunk_map,omitempty"`
EvidenceContext *SerializedArtifact `json:"evidence_context,omitempty"`
}
type OutputFile struct {

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@@ -0,0 +1,103 @@
package pipeline
import (
"fmt"
"strings"
"gitea.maximumdirect.net/eric/notarius/internal/core/source"
"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
"gitea.maximumdirect.net/eric/notarius/internal/framework/evidencecontext"
)
// debugEvidenceContextSummary intentionally contains only publication-safe
// identifiers and aggregate counts. The evidence document itself can include
// source text and must never be written to this debug envelope.
type debugEvidenceContextSummary struct {
SourceID string `json:"source_id"`
SelectedLanes []string `json:"selected_lanes"`
WindowUnits int `json:"window_units"`
ContextCount int `json:"context_count"`
UnitCount int `json:"unit_count"`
SourceDigest string `json:"source_digest"`
}
// buildOutputEvidenceContext projects the prepared output policy from accepted
// normalized artifacts. It is intentionally separate from lane execution so
// checkpointed normalized outputs use the same reconstruction path.
func buildOutputEvidenceContext(prepared *PreparedPipeline, doc *source.SourceDocument, outputs []contracts.SerializedOutput) (*contracts.SerializedArtifact, *debugEvidenceContextSummary, error) {
if prepared == nil || prepared.evidencePlan == nil {
return nil, nil, nil
}
if doc == nil {
return nil, nil, fmt.Errorf("evidence context output: source document is unavailable")
}
if prepared.artifactCodecs == nil {
return nil, nil, fmt.Errorf("evidence context output: artifact codecs are unavailable")
}
byLane := make(map[string]contracts.SerializedOutput, len(outputs))
for _, output := range outputs {
laneID := strings.TrimSpace(output.LaneID)
if _, exists := byLane[laneID]; exists {
return nil, nil, fmt.Errorf("evidence context output: accepted normalized outputs contain duplicate lane %q", laneID)
}
byLane[laneID] = contracts.CloneSerializedOutput(output)
}
request := evidencecontext.BuildRequest{
Source: doc,
WindowUnits: prepared.evidencePlan.policy.WindowUnits,
SelectedLanes: append([]string(nil), prepared.evidencePlan.policy.LaneIDs...),
LaneEvidence: make([]evidencecontext.LaneEvidence, 0, len(prepared.evidencePlan.lanes)),
}
for _, lane := range prepared.evidencePlan.lanes {
output, ok := byLane[lane.laneID]
if !ok {
continue
}
if output.SourceID != doc.ID {
return nil, nil, fmt.Errorf("evidence context output lane %q: accepted normalized output source is incompatible", lane.laneID)
}
if output.Artifact.Kind != lane.kind {
return nil, nil, fmt.Errorf("evidence context output lane %q: accepted normalized output artifact kind is incompatible", lane.laneID)
}
value, err := prepared.artifactCodecs.Decode(contracts.CloneSerializedArtifact(output.Artifact))
if err != nil {
return nil, nil, fmt.Errorf("evidence context output lane %q: accepted normalized artifact cannot be decoded", lane.laneID)
}
references, err := lane.project(value)
if err != nil {
return nil, nil, fmt.Errorf("evidence context output lane %q: accepted normalized artifact cannot be projected", lane.laneID)
}
request.LaneEvidence = append(request.LaneEvidence, evidencecontext.LaneEvidence{
LaneID: lane.laneID,
SourceRefs: append([]source.SourceRef(nil), references...),
})
}
document, err := evidencecontext.Build(request)
if err != nil {
return nil, nil, fmt.Errorf("evidence context output: accepted evidence references are invalid")
}
content, err := evidencecontext.New().Encode(document)
if err != nil {
return nil, nil, fmt.Errorf("evidence context output: evidence context serialization failed")
}
artifact := &contracts.SerializedArtifact{
Kind: evidencecontext.ArtifactKind,
Schema: evidencecontext.New().Schema(),
MediaType: evidencecontext.MediaType,
Content: content,
}
summary := debugEvidenceContextSummary{
SourceID: document.SourceID,
SelectedLanes: append([]string(nil), document.SelectedLanes...),
WindowUnits: document.WindowUnits,
ContextCount: len(document.Contexts),
SourceDigest: document.SourceDigest,
}
for _, context := range document.Contexts {
summary.UnitCount += len(context.Units)
}
return contracts.CloneSerializedArtifactPointer(artifact), &summary, nil
}

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@@ -0,0 +1,252 @@
package pipeline
import (
"context"
"errors"
"reflect"
"strings"
"testing"
"gitea.maximumdirect.net/eric/notarius/internal/core/source"
"gitea.maximumdirect.net/eric/notarius/internal/framework/contracts"
"gitea.maximumdirect.net/eric/notarius/internal/framework/evidencecontext"
)
type capturingEvidenceOutput struct {
requests []contracts.OutputRequest
}
func (*capturingEvidenceOutput) Key() string { return "capture/evidence-context" }
func (output *capturingEvidenceOutput) Encode(_ context.Context, request contracts.OutputRequest) (contracts.OutputResult, error) {
request.EvidenceContext = contracts.CloneSerializedArtifactPointer(request.EvidenceContext)
output.requests = append(output.requests, request)
return contracts.OutputResult{}, nil
}
func installEvidencePlan(prepared *PreparedPipeline, window int, selected []string, project func(codecNotes) ([]source.SourceRef, error)) {
lanes := make([]preparedEvidenceLane, 0, len(selected))
for _, laneID := range selected {
for _, step := range prepared.Steps {
for _, lane := range step.lanes {
if lane.resolved.ID != laneID {
continue
}
lanes = append(lanes, preparedEvidenceLane{
laneID: laneID,
kind: lane.resolved.ArtifactKind,
project: func(value any) ([]source.SourceRef, error) {
notes, ok := value.(codecNotes)
if !ok {
return nil, errors.New("unexpected artifact type")
}
return project(notes)
},
})
}
}
}
prepared.evidencePlan = &preparedEvidencePlan{policy: EvidenceContextPolicy{Enabled: true, WindowUnits: window, LaneIDs: append([]string(nil), selected...)}, lanes: lanes}
}
func setNormalizedNotes(prepared *PreparedPipeline, values map[string]codecNotes) {
for stepIndex := range prepared.Steps {
for laneIndex := range prepared.Steps[stepIndex].lanes {
lane := &prepared.Steps[stepIndex].lanes[laneIndex]
value, ok := values[lane.resolved.ID]
if !ok {
continue
}
lane.typed.normalize = func(context.Context, any, contracts.TypedNormalizeRequest[any]) (erasedTypedResult, error) {
return erasedTypedResult{Value: value}, nil
}
}
}
}
func decodeCapturedEvidence(t *testing.T, output *capturingEvidenceOutput) evidencecontext.Document {
t.Helper()
if len(output.requests) != 1 || output.requests[0].EvidenceContext == nil {
t.Fatalf("output requests = %#v, want one evidence context", output.requests)
}
value, err := evidencecontext.New().Decode(output.requests[0].EvidenceContext.Content)
if err != nil {
t.Fatalf("Decode(evidence context): %v", err)
}
return value
}
func TestRunnerBuildsEvidenceContextFromSelectedNormalizedOutputs(t *testing.T) {
prepared := preparedOrderedPipeline(t, 3, orderedLaneSpec{id: "alpha", profile: "notes"}, orderedLaneSpec{id: "beta", profile: "notes"})
encoder := &capturingEvidenceOutput{}
prepared.output = encoder
setNormalizedNotes(prepared, map[string]codecNotes{"alpha": {Items: []string{"one"}}, "beta": {Items: []string{"two"}}})
installEvidencePlan(prepared, 1, []string{"alpha", "beta", "inactive"}, func(notes codecNotes) ([]source.SourceRef, error) {
switch notes.Items[0] {
case "one":
return []source.SourceRef{{SourceID: "source", StartUnitID: 1, EndUnitID: 1}}, nil
case "two":
return []source.SourceRef{{SourceID: "source", StartUnitID: 2, EndUnitID: 2}}, nil
default:
return nil, nil
}
})
debug := newCapturedDebugRecorder()
if _, err := New().Run(context.Background(), RunInput{Prepared: prepared, RawInput: []byte("input"), Debug: debug}); err != nil {
t.Fatalf("Run() error = %v", err)
}
value := decodeCapturedEvidence(t, encoder)
if !reflect.DeepEqual(value.SelectedLanes, []string{"alpha", "beta", "inactive"}) || len(value.Contexts) != 1 || len(value.Contexts[0].Units) != 3 {
t.Fatalf("evidence context = %#v, want selected union", value)
}
if got := value.Contexts[0].EvidenceRefs; len(got) != 2 || got[0].LaneID != "alpha" || got[1].LaneID != "beta" {
t.Fatalf("evidence refs = %#v, want both selected lanes", got)
}
debugJSON := string(debug.json["output/evidence-context.json"])
if strings.Contains(debugJSON, "text-1") || strings.Contains(debugJSON, "metadata") || !strings.Contains(debugJSON, `"context_count":1`) || !strings.Contains(debugJSON, `"unit_count":3`) {
t.Fatalf("evidence debug envelope = %s, want only allowlisted summary", debugJSON)
}
}
func TestRunnerEvidenceContextOmitsAbsentAndRejectedLanes(t *testing.T) {
prepared := preparedOrderedPipeline(t, 2, orderedLaneSpec{id: "present", profile: "notes"}, orderedLaneSpec{id: "rejected", profile: "notes"})
encoder := &capturingEvidenceOutput{}
prepared.output = encoder
setNormalizedNotes(prepared, map[string]codecNotes{"present": {Items: []string{"present"}}, "rejected": {Items: []string{"rejected"}}})
prepared.Steps[1].lanes[0].mergeValidators.validators = []preparedValidator{{
resolved: ResolvedValidator{Binding: Binding("reject"), Target: ValidatorTargetTyped, ArtifactKind: "test/notes"},
typedValidate: func(context.Context, any, typedValidationTarget) (contracts.ValidationResult, error) {
return contracts.ValidationResult{Approved: false, ReasonCode: "rejected", Message: "not accepted"}, nil
},
}}
installEvidencePlan(prepared, 0, []string{"absent", "present", "rejected"}, func(notes codecNotes) ([]source.SourceRef, error) {
if len(notes.Items) > 0 && notes.Items[0] == "present" {
return []source.SourceRef{{SourceID: "source", StartUnitID: 1, EndUnitID: 1}}, nil
}
return []source.SourceRef{{SourceID: "source", StartUnitID: 2, EndUnitID: 2}}, nil
})
result, err := New().Run(context.Background(), RunInput{Prepared: prepared, RawInput: []byte("input")})
if err != nil {
t.Fatalf("Run() error = %v", err)
}
if len(result.Rejected) != 1 || result.Rejected[0].LaneID != "rejected" {
t.Fatalf("rejections = %#v, want rejected lane unchanged", result.Rejected)
}
value := decodeCapturedEvidence(t, encoder)
if len(value.Contexts) != 1 || len(value.Contexts[0].EvidenceRefs) != 1 || value.Contexts[0].EvidenceRefs[0].LaneID != "present" {
t.Fatalf("evidence context = %#v, want present lane only", value)
}
}
func TestRunnerEvidenceContextFailurePreventsOutputEncoding(t *testing.T) {
prepared := preparedConcurrentPipeline(t, 1)
encoder := &capturingEvidenceOutput{}
prepared.output = encoder
setNormalizedNotes(prepared, map[string]codecNotes{"notes": {Items: []string{"invalid"}}})
installEvidencePlan(prepared, 0, []string{"notes"}, func(codecNotes) ([]source.SourceRef, error) {
return []source.SourceRef{{SourceID: "source", StartUnitID: 99, EndUnitID: 99}}, nil
})
result, err := New().Run(context.Background(), RunInput{Prepared: prepared, RawInput: []byte("input")})
if err == nil || !strings.Contains(err.Error(), "accepted evidence references are invalid") {
t.Fatalf("Run() error = %v, want evidence context failure", err)
}
if len(encoder.requests) != 0 || result.Manifest.ValidationStatus != "failed" || len(result.Rejected) != 0 {
t.Fatalf("output requests = %#v manifest = %#v rejected = %#v, want failed run before output encoding", encoder.requests, result.Manifest, result.Rejected)
}
}
func TestBuildOutputEvidenceContextRejectsIncompatibleAcceptedOutputs(t *testing.T) {
prepared := preparedConcurrentPipeline(t, 1)
doc := prepared.input.(*typedTestInput).doc
installEvidencePlan(prepared, 0, []string{"notes"}, func(codecNotes) ([]source.SourceRef, error) {
return []source.SourceRef{{SourceID: doc.ID, StartUnitID: 1, EndUnitID: 1}}, nil
})
artifact, err := prepared.artifactCodecs.Encode("test/notes", codecNotes{Items: []string{"valid"}})
if err != nil {
t.Fatal(err)
}
valid := contracts.SerializedOutput{LaneID: "notes", SourceID: doc.ID, Artifact: artifact}
for _, test := range []struct {
name string
outputs []contracts.SerializedOutput
mutate func(*contracts.SerializedOutput)
want string
}{
{name: "duplicate lane", outputs: []contracts.SerializedOutput{valid, valid}, want: "duplicate lane"},
{name: "foreign source", outputs: []contracts.SerializedOutput{valid}, mutate: func(output *contracts.SerializedOutput) { output.SourceID = "other" }, want: "source is incompatible"},
{name: "wrong artifact kind", outputs: []contracts.SerializedOutput{valid}, mutate: func(output *contracts.SerializedOutput) { output.Artifact.Kind = "test/score" }, want: "artifact kind is incompatible"},
{name: "invalid artifact payload", outputs: []contracts.SerializedOutput{valid}, mutate: func(output *contracts.SerializedOutput) { output.Artifact.Content = []byte("not JSON") }, want: "cannot be decoded"},
} {
t.Run(test.name, func(t *testing.T) {
outputs := append([]contracts.SerializedOutput(nil), test.outputs...)
for index := range outputs {
outputs[index] = contracts.CloneSerializedOutput(outputs[index])
}
if test.mutate != nil {
test.mutate(&outputs[0])
}
_, _, err := buildOutputEvidenceContext(prepared, doc, outputs)
if err == nil || !strings.Contains(err.Error(), test.want) {
t.Fatalf("buildOutputEvidenceContext() error = %v, want %q", err, test.want)
}
if strings.Contains(err.Error(), "not JSON") {
t.Fatalf("buildOutputEvidenceContext() exposed artifact payload: %v", err)
}
})
}
}
func TestEvidenceContextOutputRequestOwnsArtifactBytes(t *testing.T) {
artifact := &contracts.SerializedArtifact{Content: []byte("original"), Metadata: map[string]any{"source": "original"}}
request := contracts.OutputRequest{EvidenceContext: contracts.CloneSerializedArtifactPointer(artifact)}
request.EvidenceContext.Content[0] = 'X'
request.EvidenceContext.Metadata["source"] = "changed"
if string(artifact.Content) != "original" || artifact.Metadata["source"] != "original" {
t.Fatalf("output request evidence context aliases source artifact: %#v", artifact)
}
}
func TestRunnerEvidenceContextRebuildsFromAcceptedCheckpoint(t *testing.T) {
prepared := preparedConcurrentPipeline(t, 1)
encoder := &capturingEvidenceOutput{}
prepared.output = encoder
doc := prepared.input.(*typedTestInput).doc
lane := prepared.Steps[0].lanes[0]
stored, err := checkpointArtifact(lane.typed.codec, lane.resolved.ID, lane.resolved.Normalize.Module, doc.ID, codecNotes{Items: []string{"stored"}})
if err != nil {
t.Fatal(err)
}
loader := newAcceptedCheckpointLoader()
key := CheckpointLaneKey(lane.resolved.StepID, lane.resolved.ID)
loader.accepted[key] = NormalizeCheckpoint{Output: stored}
loader.acceptedDecision[key] = NewCheckpointDecision(CheckpointDecisionReused, CheckpointReasonAcceptedArtifactReused)
installEvidencePlan(prepared, 0, []string{"notes"}, func(notes codecNotes) ([]source.SourceRef, error) {
if !reflect.DeepEqual(notes.Items, []string{"stored"}) {
return nil, errors.New("checkpoint artifact was not projected")
}
return []source.SourceRef{{SourceID: doc.ID, StartUnitID: 1, EndUnitID: 1}}, nil
})
policy := CheckpointExecutionPolicy{RequireReusableLanes: map[string]struct{}{key: {}}}
if _, err := New().Run(context.Background(), RunInput{Prepared: prepared, RawInput: []byte("input"), Checkpoint: loader, CheckpointPolicy: policy}); err != nil {
t.Fatalf("Run() error = %v", err)
}
value := decodeCapturedEvidence(t, encoder)
if len(value.Contexts) != 1 || value.Contexts[0].EvidenceRefs[0].LaneID != "notes" {
t.Fatalf("evidence context = %#v, want checkpointed normalized output", value)
}
}
func TestRunnerSkipsEvidenceContextWhenOutputDoesNotOptIn(t *testing.T) {
prepared := preparedConcurrentPipeline(t, 1)
encoder := &capturingEvidenceOutput{}
prepared.output = encoder
projected := 0
prepared.evidencePlan = nil
if _, err := New().Run(context.Background(), RunInput{Prepared: prepared, RawInput: []byte("input")}); err != nil {
t.Fatalf("Run() error = %v", err)
}
if projected != 0 || len(encoder.requests) != 1 || encoder.requests[0].EvidenceContext != nil {
t.Fatalf("projected = %d requests = %#v, want no evidence work", projected, encoder.requests)
}
}

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@@ -294,6 +294,20 @@ func (r *Runner) Run(ctx context.Context, input RunInput) (output RunOutput, err
return failOutput(output), err
}
outputStarted := time.Now().UTC()
evidenceArtifact, evidenceSummary, err := buildOutputEvidenceContext(input.Prepared, doc, output.NormalizeOutputs)
if err != nil {
return failOutput(output), err
}
if evidenceSummary != nil {
if err := writeDebugTimed(debugRecorder, "output/evidence-context.json", debugTimedEnvelope{
Stage: string(StageOutput),
ModuleKey: encoder.Key(),
StartedAt: outputStarted,
Payload: *evidenceSummary,
}); err != nil {
return failOutput(output), fmt.Errorf("write evidence context debug artifact: %w", err)
}
}
outputDebugPayload := map[string]any{
"manifest": output.Manifest,
"normalize_outputs": debugSerializedOutputEnvelopes(output.NormalizeOutputs),
@@ -325,6 +339,7 @@ func (r *Runner) Run(ctx context.Context, input RunInput) (output RunOutput, err
LLMProfile: input.pipeline.Output.LLMProfile,
Metadata: outputMetadata,
ChunkMap: contracts.CloneSerializedArtifactPointer(acceptedChunkMap),
EvidenceContext: contracts.CloneSerializedArtifactPointer(evidenceArtifact),
})
output.Warnings = append(output.Warnings, encoded.Warnings...)
if err != nil {