.planning/STATE.md

---
gsd_state_version: 1.0
milestone: v1.0
milestone_name: milestone
status: Executing Phase 01
stopped_at: Phase 1 context gathered
last_updated: "2026-03-25T11:08:08.766Z"
progress:
  total_phases: 4
  completed_phases: 0
  total_plans: 4
  completed_plans: 0
---

# Project State

## Project Reference

See: .planning/PROJECT.md (updated 2026-03-24)

**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 01 — capture-and-classification

## Current Position

Phase: 01 (capture-and-classification) — EXECUTING
Plan: 1 of 4

## Performance Metrics

**Velocity:**

- Total plans completed: 0
- Average duration: —
- Total execution time: —

**By Phase:**

| Phase | Plans | Total | Avg/Plan |
|-------|-------|-------|----------|
| - | - | - | - |

**Recent Trend:**

- Last 5 plans: —
- Trend: —

*Updated after each plan completion*

## Accumulated Context

### Decisions

Decisions are logged in PROJECT.md Key Decisions table.
Recent decisions affecting current work:

- Use `github.com/gopacket/gopacket` v1.5.0 (community fork) — NOT `google/gopacket` which is unmaintained
- Use `github.com/packetcap/go-pcap` for live capture (pure Go, no CGo for capture layer)
- Use `github.com/sjzar/go-lame` v0.0.9 for MP3 encoding (embeds LAME C source, CGo required at build time only)
- Audio synthesis: hand-rolled additive sine oscillators + EMA amplitude smoothing (no external audio library)
- Frequency table: register-separated harmonics (low drones = bulk traffic, mid = control, high = interactive)

### Pending Todos

None yet.

### Blockers/Concerns

- Phase 2: Frequency mapping requires subjective listening validation — specific Hz values not determined by research; must test during Phase 2
- Phase 3: Auto-clustering algorithm choice (hash-bucketing vs k-means) deferred until synthesis engine exists to evaluate perceptual results
- macOS privilege model (BPF device vs CAP_NET_RAW) not verified by research — flag if macOS is a target during Phase 1

## Session Continuity

Last session: 2026-03-25T10:14:54.587Z
Stopped at: Phase 1 context gathered
Resume file: .planning/phases/01-capture-and-classification/01-CONTEXT.md
docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00			`---`
			`gsd_state_version: 1.0`
			`milestone: v1.0`
			`milestone_name: milestone`
Initial project setup with planning artifacts 2026-03-25 12:08:45 +01:00			`status: Executing Phase 01`
docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00			`stopped_at: Phase 1 context gathered`
Initial project setup with planning artifacts 2026-03-25 12:08:45 +01:00			`last_updated: "2026-03-25T11:08:08.766Z"`
docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00			`progress:`
			`total_phases: 4`
			`completed_phases: 0`
Initial project setup with planning artifacts 2026-03-25 12:08:45 +01:00			`total_plans: 4`
docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00			`completed_plans: 0`
			`---`

docs: create roadmap (4 phases) 2026-03-24 22:43:51 +01:00			`# Project State`

			`## Project Reference`

			`See: .planning/PROJECT.md (updated 2026-03-24)`

			`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.`
Initial project setup with planning artifacts 2026-03-25 12:08:45 +01:00			`Current focus: Phase 01 — capture-and-classification`
docs: create roadmap (4 phases) 2026-03-24 22:43:51 +01:00
			`## Current Position`

Initial project setup with planning artifacts 2026-03-25 12:08:45 +01:00			`Phase: 01 (capture-and-classification) — EXECUTING`
			`Plan: 1 of 4`
docs: create roadmap (4 phases) 2026-03-24 22:43:51 +01:00
			`## Performance Metrics`

			`Velocity:`
docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00
docs: create roadmap (4 phases) 2026-03-24 22:43:51 +01:00			`- Total plans completed: 0`
			`- Average duration: —`
			`- Total execution time: —`

			`By Phase:`

			`\| Phase \| Plans \| Total \| Avg/Plan \|`
			`\|-------\|-------\|-------\|----------\|`
			`\| - \| - \| - \| - \|`

			`Recent Trend:`
docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00
docs: create roadmap (4 phases) 2026-03-24 22:43:51 +01:00			`- Last 5 plans: —`
			`- Trend: —`

			`Updated after each plan completion`

			`## Accumulated Context`

			`### Decisions`

			`Decisions are logged in PROJECT.md Key Decisions table.`
			`Recent decisions affecting current work:`

			- Use `github.com/gopacket/gopacket` v1.5.0 (community fork) — NOT `google/gopacket` which is unmaintained
			- Use `github.com/packetcap/go-pcap` for live capture (pure Go, no CGo for capture layer)
			- Use `github.com/sjzar/go-lame` v0.0.9 for MP3 encoding (embeds LAME C source, CGo required at build time only)
			`- Audio synthesis: hand-rolled additive sine oscillators + EMA amplitude smoothing (no external audio library)`
			`- Frequency table: register-separated harmonics (low drones = bulk traffic, mid = control, high = interactive)`

			`### Pending Todos`

			`None yet.`

			`### Blockers/Concerns`

			`- Phase 2: Frequency mapping requires subjective listening validation — specific Hz values not determined by research; must test during Phase 2`
			`- Phase 3: Auto-clustering algorithm choice (hash-bucketing vs k-means) deferred until synthesis engine exists to evaluate perceptual results`
			`- macOS privilege model (BPF device vs CAP_NET_RAW) not verified by research — flag if macOS is a target during Phase 1`

			`## Session Continuity`

docs(state): record phase 1 context session 2026-03-25 11:14:58 +01:00			`Last session: 2026-03-25T10:14:54.587Z`
			`Stopped at: Phase 1 context gathered`
			`Resume file: .planning/phases/01-capture-and-classification/01-CONTEXT.md`