diff --git a/.planning/STATE.md b/.planning/STATE.md
index 48ffd4b..e6e2049 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Custom Sound Mappings
-status: verifying
-stopped_at: Completed 06-01-PLAN.md
-last_updated: "2026-03-26T19:58:00.000Z"
-last_activity: 2026-03-26
+status: executing
+stopped_at: Phase 6 context gathered
+last_updated: "2026-03-26T19:53:17.089Z"
+last_activity: 2026-03-26 -- Phase 06 execution started
 progress:
   total_phases: 3
   completed_phases: 1
-  total_plans: 3
-  completed_plans: 1
-  percent: 33
+  total_plans: 4
+  completed_plans: 2
+  percent: 0
 ---
 
 # Project State
@@ -21,16 +21,16 @@ progress:
 See: .planning/PROJECT.md (updated 2026-03-26)
 
 **Core value:** Network traffic patterns are instantly recognizable as distinct sounds — a ping sounds different from HTTPS noise, which sounds different from a port scan.
-**Current focus:** Phase 05 — waveform-types-and-bank-decoupling
+**Current focus:** Phase 06 — config-package-and-sound-overrides
 
 ## Current Position
 
-Phase: 6
-Plan: 1 complete, 2 next
-Status: Plan 01 complete
-Last activity: 2026-03-26
+Phase: 06 (config-package-and-sound-overrides) — EXECUTING
+Plan: 1 of 2
+Status: Executing Phase 06
+Last activity: 2026-03-26 -- Phase 06 execution started
 
-Progress: [███░░░░░░░] 33%
+Progress: [░░░░░░░░░░] 0%
 
 ## Performance Metrics
 
@@ -52,7 +52,6 @@ Progress: [███░░░░░░░] 33%
 **Recent Trend:** Stable
 | Phase 05 P01 | 3min | 2 tasks | 3 files |
 | Phase 05 P02 | 4 | 2 tasks | 4 files |
-| Phase 06 P01 | 3min | 1 task | 4 files |
 
 ## Accumulated Context
 
@@ -65,9 +64,6 @@ Progress: [███░░░░░░░] 33%
 - [Phase 05]: WaveformType zero value is WaveformCustom — all 14 existing ClassFreqConfigs entries retain hand-tuned harmonics without modification
 - [Phase 05]: NewBank accepts injected config map instead of reading ClassFreqConfigs global — injection seam for Phase 6 config loading
 - [Phase 05]: gainPerLayer computed as 1.0/float64(len(cfgs)) — correct for any class count, no-clip guarantee preserved
-- [Phase 06-01]: BurntSushi/toml v1.6.0 chosen over pelletier/go-toml v2 — Undecoded() returns structured []Key not formatted string, easier key name extraction for error messages
-- [Phase 06-01]: Shallow copy in copyDefaults() safe because merge always reconstructs Harmonics via WaveformPresetHarmonics rather than mutating original slice
-- [Phase 06-01]: Unknown class names produce stderr warning (not error) per D-09 — Phase 7 user-defined classes will make arbitrary names valid
 
 ### Pending Todos
 
@@ -79,6 +75,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-03-26T19:58:00.000Z
-Stopped at: Completed 06-01-PLAN.md
-Resume file: .planning/phases/06-config-package-and-sound-overrides/06-01-SUMMARY.md
+Last session: 2026-03-26T19:39:13.119Z
+Stopped at: Phase 6 context gathered
+Resume file: .planning/phases/06-config-package-and-sound-overrides/06-CONTEXT.md
diff --git a/.planning/config.json b/.planning/config.json
index b4645a1..71e78e7 100644
--- a/.planning/config.json
+++ b/.planning/config.json
@@ -26,7 +26,7 @@
     "research_before_questions": false,
     "discuss_mode": "discuss",
     "skip_discuss": false,
-    "_auto_chain_active": false
+    "_auto_chain_active": true
   },
   "hooks": {
     "context_warnings": true
diff --git a/go.mod b/go.mod
index 14e0ca5..ca42a19 100644
--- a/go.mod
+++ b/go.mod
@@ -5,15 +5,15 @@ go 1.24.1
 require (
 	github.com/gopacket/gopacket v1.5.0
 	github.com/packetcap/go-pcap v0.0.0-20251215121130-f2cf9f991e7c
+	github.com/sjzar/go-lame v0.0.9
 	github.com/spf13/cobra v1.10.2
+	golang.org/x/net v0.39.0
 )
 
 require (
 	github.com/BurntSushi/toml v1.6.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
-	github.com/sjzar/go-lame v0.0.9 // indirect
 	github.com/spf13/pflag v1.0.9 // indirect
-	golang.org/x/net v0.39.0 // indirect
 	golang.org/x/sys v0.32.0 // indirect
 )
diff --git a/go.sum b/go.sum
index d246eea..815891e 100644
--- a/go.sum
+++ b/go.sum
@@ -24,6 +24,10 @@ github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/vishvananda/netlink v1.1.0 h1:1iyaYNBLmP6L0220aDnYQpo1QEV4t4hJ+xEEhhJH8j0=
+github.com/vishvananda/netlink v1.1.0/go.mod h1:cTgwzPIzzgDAYoQrMm0EdrjRUBkTqKYppBueQtXaqoE=
+github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 h1:gga7acRE695APm9hlsSMoOoE65U4/TcqNj90mc69Rlg=
+github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/net v0.39.0 h1:ZCu7HMWDxpXpaiKdhzIfaltL9Lp31x/3fCP11bc6/fY=
 golang.org/x/net v0.39.0/go.mod h1:X7NRbYVEA+ewNkCNyJ513WmMdQ3BineSwVtN2zD/d+E=