feat(go): expose retained incident views

docs/GO_PORT_HANDOFF.md

@@ -1,8 +1,8 @@
 # Go Port Handoff
 
-Saved: 2026-07-22T02:22:00-07:00
+Saved: 2026-07-22T02:34:00-07:00
 Branch: `main`
-Base commit: `1ab4add` (`feat(go): chain retained snapshot artifacts`)
+Base commit: `eff31b3` (`feat(go): enrich snapshots asynchronously`)
 Status: implemented and green, but uncommitted
 
 ## Worktree warning
@@ -10,9 +10,10 @@ Status: implemented and green, but uncommitted
 The checkout is intentionally dirty and contains work from multiple related
 continuations. Do not reset, clean, or broadly restage it.
 
-- The validation-sidecar, incident-persistence, bounded-enrichment, and local-
+- The validation-sidecar, incident-persistence, bounded-enrichment, local-
-  assurance tranches are signed commits `f85c2e8`, `538d1d9`, `fd2bbba`, and
+  assurance, and asynchronous-enrichment tranches are signed commits
-  `1ab4add`. The asynchronous-enrichment slice is uncommitted.
+  `f85c2e8`, `538d1d9`, `fd2bbba`, `1ab4add`, and `eff31b3`. The native
+  incident-reader slice is uncommitted.
 - At this checkpoint, `git status --short` has 20 entries with untracked
   directories collapsed.
 - The Python GUI files and tests are separate pre-existing work. Preserve them
@@ -104,6 +105,9 @@ static binary.
   outside the snapshot lock; a full queue simply leaves optional fields unknown.
 - Package ownership, richer integrity anchors, and notification fan-out are not
   yet ported.
+- `--incidents-list` and `--incident-show <id>` now read the sidecar's isolated
+  state without starting the agent. The latter returns `enodia.incident.view.v1`
+  with the incident, available snapshots, and time-ordered timeline.
 - No live system service was installed or enabled during development.
 
 ## Last green verification
@@ -150,8 +154,8 @@ the suite still exits successfully.
 
 1. Add bounded package-ownership and integrity-anchor collectors to the existing
    asynchronous worker without destructive response behavior.
-2. Connect the isolated Go snapshot/event state to explicit read-only
+2. Add a read-only management API consumer for isolated Go snapshot/event state
-   management consumers while keeping Python authoritative.
+   while keeping Python authoritative.
 3. Continue broader Phase 3 rule metadata/state parity before considering any
    default-service or package cutover.
 

docs/PACKAGING.md

@@ -119,6 +119,14 @@ sudo enodia-sentinel-go --events-tail 50
 The native reader includes `events.jsonl.1`, preserves chronological order, and
 fails nonzero if either retained segment contains malformed JSON.
 
+Inspect the sidecar's isolated incident records and timeline without starting
+the service or changing Python state:
+
+```bash
+sudo enodia-sentinel-go --incidents-list
+sudo enodia-sentinel-go --incident-show <incident-id>
+```
+
 Inspect or remove the validation service with:
 
 ```bash

go-agent/README.md

@@ -160,6 +160,17 @@ fails nonzero rather than forwarding corrupted evidence. It does not load the
 agent configuration, so retained evidence remains available while a broken
 configuration prevents the service from starting.
 
+Inspect the isolated incident index without starting the agent:
+
+```bash
+enodia-sentinel-go --incidents-list --state-dir /tmp/enodia-go-state
+enodia-sentinel-go --incident-show inc-20260722-101112-abcd --state-dir /tmp/enodia-go-state
+```
+
+`--incident-show` returns `enodia.incident.view.v1` with the durable incident,
+available snapshot reports, and a time-ordered timeline. These read-only
+commands never modify or consult the Python daemon state.
+
 `--fixture`, `--host`, `--timestamp`, `--proc-root`, and `--suid-root` exist for
 deterministic parity/testing. Fixture mode never activates the live baseline
 manager. Production work should continue to use the default live `/proc`,

go-agent/cmd/enodia-sentinel-go/main.go

@@ -10,8 +10,11 @@ import (
 	"errors"
 	"flag"
 	"fmt"
+	"io"
 	"os"
 	"os/signal"
+	"path/filepath"
+	"sort"
 	"strings"
 	"sync"
 	"syscall"
@@ -25,6 +28,7 @@ import (
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/eventlog"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/events"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/health"
+	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/incident"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/model"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/schema"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/sdnotify"
@@ -57,6 +61,8 @@ func run() error {
 	rulesList := flag.Bool("rules-list", false, "emit the active event-rule catalog as JSON and exit")
 	rulesShow := flag.Int("rules-show", 0, "emit one event rule by SID as JSON and exit")
 	correlateFile := flag.String("correlate", "", "correlate a JSON array of incident summaries and exit")
+	incidentsList := flag.Bool("incidents-list", false, "list retained Go incidents as JSON and exit")
+	incidentShow := flag.String("incident-show", "", "show one retained Go incident timeline as JSON and exit")
 	ebpfExec := flag.Bool("ebpf-exec", false, "enable the native execve eBPF source (fails open to polling)")
 	ebpfSyscall := flag.Bool("ebpf-syscall", false, "enable the native security-syscall eBPF source (fails open to polling)")
 	checkHealth := flag.Bool("health", false, "check the state heartbeat as JSON and exit")
@@ -91,6 +97,19 @@ func run() error {
 		}
 		return nil
 	}
+	if *incidentsList || *incidentShow != "" {
+		directory := *snapshotDir
+		if directory == "" {
+			directory = *stateDir
+		}
+		if directory == "" {
+			directory = "/var/lib/enodia-sentinel-go"
+		}
+		if *incidentsList {
+			return writeIncidentList(directory, os.Stdout)
+		}
+		return writeIncidentView(directory, *incidentShow, os.Stdout)
+	}
 
 	cfg, err := config.Load(*configPath)
 	if err != nil {
@@ -307,6 +326,62 @@ func run() error {
 	return runner.Run(ctx, *once, emit)
 }
 
+func writeIncidentList(directory string, output io.Writer) error {
+	index, err := incident.LoadIndex(directory)
+	if err != nil {
+		return err
+	}
+	items := make([]*incident.Record, 0, len(index))
+	for _, item := range index {
+		items = append(items, item)
+	}
+	sort.Slice(items, func(i, j int) bool { return items[i].LastTS > items[j].LastTS })
+	return json.NewEncoder(output).Encode(items)
+}
+
+func writeIncidentView(directory, id string, output io.Writer) error {
+	index, err := incident.LoadIndex(directory)
+	if err != nil {
+		return err
+	}
+	item := index[id]
+	if item == nil {
+		return fmt.Errorf("no such incident: %s", id)
+	}
+	timeline := make([]map[string]any, 0, len(item.Snapshots))
+	snapshots := make([]snapshot.Report, 0, len(item.Snapshots))
+	for _, name := range item.Snapshots {
+		path := filepath.Join(directory, strings.TrimSuffix(name, ".log")+".json")
+		report, err := snapshot.LoadReport(path)
+		if err != nil {
+			timeline = append(timeline, map[string]any{"snapshot": name, "time": "?", "missing": true})
+			continue
+		}
+		snapshots = append(snapshots, report)
+		signatures := make([]string, 0, len(report.Alerts))
+		pids := make([]int, 0, len(report.Processes))
+		seen := map[string]bool{}
+		for _, alert := range report.Alerts {
+			if !seen[alert.Signature] {
+				seen[alert.Signature] = true
+				signatures = append(signatures, alert.Signature)
+			}
+		}
+		for _, process := range report.Processes {
+			pids = append(pids, process.PID)
+		}
+		timeline = append(timeline, map[string]any{
+			"snapshot": name, "time": report.Time, "severity": report.Severity,
+			"signatures": signatures, "pids": pids,
+		})
+	}
+	sort.Slice(timeline, func(i, j int) bool { return timeline[i]["time"].(string) < timeline[j]["time"].(string) })
+	return json.NewEncoder(output).Encode(map[string]any{
+		"schema": "enodia.incident.view.v1", "incident": item,
+		"timeline": timeline, "snapshots": snapshots,
+	})
+}
+
 func monitorExecSource(
 	ctx context.Context,
 	source execEventReader,

go-agent/cmd/enodia-sentinel-go/main_test.go

@@ -3,9 +3,13 @@
 package main
 
 import (
+	"bytes"
 	"context"
+	"encoding/json"
 	"fmt"
 	"io"
+	"os"
+	"path/filepath"
 	"strings"
 	"syscall"
 	"testing"
@@ -15,7 +19,9 @@ import (
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/config"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/ebpfsource"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/events"
+	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/incident"
 	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/model"
+	"codeberg.org/anassaeneroi/enodia-sentinal/go-agent/internal/snapshot"
 )
 
 type oneExecReader struct {
@@ -160,3 +166,42 @@ func TestProbeFailureStatusIsConcise(t *testing.T) {
 		t.Fatalf("unexpected truncated status: %q", got)
 	}
 }
+
+func TestIncidentReadOnlyCommandsUseIsolatedSnapshotState(t *testing.T) {
+	directory := t.TempDir()
+	store, err := incident.New(directory, true, 1800, 8)
+	if err != nil {
+		t.Fatal(err)
+	}
+	when := time.Date(2026, 7, 22, 10, 0, 0, 0, time.UTC)
+	id, err := store.RecordAlert("alert-1.log", model.Alert{SID: 1, Severity: "HIGH", Signature: "test", PIDs: []int{42}}, map[int]bool{42: true}, when, "host-a", "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	report := snapshot.Report{Schema: snapshot.Schema, Time: when.Format(time.RFC3339), Host: "host-a", Severity: "HIGH", Alerts: []model.Alert{{SID: 1, Severity: "HIGH", Signature: "test"}}, Processes: []snapshot.ProcessDetail{{PID: 42}}, Enrichment: map[string]any{}}
+	raw, err := json.Marshal(report)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(directory, "alert-1.json"), raw, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	var list bytes.Buffer
+	if err := writeIncidentList(directory, &list); err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(list.String(), id) {
+		t.Fatalf("list=%s", list.String())
+	}
+	var view bytes.Buffer
+	if err := writeIncidentView(directory, id, &view); err != nil {
+		t.Fatal(err)
+	}
+	var decoded map[string]any
+	if err := json.Unmarshal(view.Bytes(), &decoded); err != nil || decoded["schema"] != "enodia.incident.view.v1" {
+		t.Fatalf("view=%s err=%v", view.String(), err)
+	}
+	if len(decoded["timeline"].([]any)) != 1 || len(decoded["snapshots"].([]any)) != 1 {
+		t.Fatalf("view=%#v", decoded)
+	}
+}

go-agent/internal/snapshot/store.go

@@ -55,6 +55,22 @@ type Stats struct {
 	LastAlert *string
 }
 
+// LoadReport reads one retained snapshot for read-only incident views.
+func LoadReport(path string) (Report, error) {
+	raw, err := os.ReadFile(path)
+	if err != nil {
+		return Report{}, err
+	}
+	var report Report
+	if err := json.Unmarshal(raw, &report); err != nil {
+		return Report{}, err
+	}
+	if report.Schema != Schema {
+		return Report{}, fmt.Errorf("unexpected snapshot schema %q", report.Schema)
+	}
+	return report, nil
+}
+
 type Store struct {
 	Dir          string
 	ProcRoot     string