# OpenSpec Change: network-discovery-webtorrent

- **Change ID**: network-discovery-webtorrent
- **Package**: `@suaveplan/network-discovery-webtorrent`
- **Category**: browser
- **Target path**: `packages/network/network-discovery-webtorrent`
- **Status**: PROPOSED
- **Date**: 2026-05-11
- **Parent**: `network-transport-family` (2026-05-11) — Wave 2
- **Migration source**: `../suaveplan/packages/browser/network-discovery-webtorrent` + `../suaveplan/enterprise/network-discovery-webtorrent.md`

---

## Summary

Migrate `@suaveplan/network-discovery-webtorrent` as a browser-tier `DiscoveryStrategy` for `@suaveplan/network`. WebTorrent-tracker-based WebRTC peer discovery via [`p2pt`](https://github.com/subins2000/p2pt). Smallest discovery package but the upstream test file is `describe.skip`-only, so this migration adds the entire test suite from zero.

---

## Current-state audit

Upstream source layout (`../suaveplan/packages/browser/network-discovery-webtorrent/src/`):

- `lib/network-discovery-webtorrent.ts` (210 L) — full implementation: tracker list, P2PT wrap, peer add/remove, error propagation

See `../suaveplan/enterprise/network-discovery-webtorrent.md` for full upstream surface inventory.

---

## Parity Checklist

| Capability | Upstream | Migrated | Notes |
|---|---|---|---|
| `DiscoveryStrategy` impl | ✅ | ✅ | |
| `WebTorrentDiscovery` core | ✅ | ✅ | Extends genesis `@suaveplan/events` EventEmitter. |
| Default tracker list | ⚠️ (public) | ⬆️ | Tracker list REQUIRED in options; no public-tracker fallback. |
| Tests | 🚫 (`describe.skip` shell) | ⬆️ | Full unit + integration suite written from scratch — upstream coverage is effectively 0%. |
| Structured errors | 🚫 | ⬆️ | `defineCodes` registry with strategy-specific codes. |
| Zod boundary validation | 🚫 | ⬆️ | Every public option struct. |
| OTel instrumentation | 🚫 | ⬆️ | Spans + counters + histograms keyed by strategy. |
| AbortSignal | 🚫 | ⬆️ | Threaded through `start`/`stop`/`connect`. |
| `export *` barrels | check | ⬆️ | Convert to explicit named exports per §6a. |
| Test-runner imports | direct vitest | ⬆️ | Rewrite to `@suaveplan/testing/runner` per §7. |
| 100% test coverage | 🚫 | ⬆️ | Bring to 100/100/100/100. |
| Property tests | 🚫 | ⬆️ | fast-check property suite where applicable. |

---

## Available workspace deps on genesis

- `@suaveplan/network` ✅
- `@suaveplan/network-bootstrap` ⬅ Wave 1
- `@suaveplan/service-discovery` ⬅ Wave 1
- `@suaveplan/types`, `@suaveplan/error`, `@suaveplan/events`, `@suaveplan/timing` ✅
- `@suaveplan/testing` ✅
- External: `p2pt` — add to root catalog under `network-discovery`.

**Blocking note.** Wave 1 must land first.

---

## Acceptance gate

1. `bunx turbo lint typecheck test --filter=@suaveplan/network-discovery-webtorrent` green.
2. `bunx turbo test:coverage --filter=@suaveplan/network-discovery-webtorrent` 100/100/100/100.
3. `bun run docs:check` green (sibling `.md` per `.ts`).
4. `STATUS.md` row flipped from `–` to `✅`.
5. `network-bootstrap` chain integration test demonstrates this strategy as a working entry.

---

## Out of scope

- Hosting / running any required relays or trackers (deployment concern).
- React Storybook stories — discovery is a universal/headless tier; UI lives in a dedicated devtools package (future).