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openspec/archive/2026-05-11-network-discovery-webtorrent/proposal.md

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+# 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).