On cold login the app opened WebSockets to a user's full NIP-65 read set
(in prod often ~20 relays, most dead). The flood of failing connections
churned the main thread and starved the nip-07 extension's postMessage
round-trips, so encrypted lists (blocks, subscriptions, hashtags) were
fetched but timed out during decryption ("message channel closed",
"Decryption timed out").
Bound every read/subscribe path to MAX_SUBSCRIBE_RELAYS=8 via a shared,
test-aware capReadRelays helper, applied at the chokepoints:
- client.js applyRelayPreferences (this.relays / this.readRelays)
- relayBatchFetcher.js fetchListIncrementally (blocks, subs, hashtags)
Writes stay uncapped (publish reach preserved).
capReadRelays is user-relays-first (a user's own relays are where their
data authoritatively lives, and small fast-path limits would otherwise
crowd them out — the regression that reverted the first attempt) while
reserving RESERVED_DEFAULT_RELAY_SLOTS=2 for reliable default aggregators
so the "~20 personal relays, all dead" case still reaches a live relay.
Under test the reserved core resolves to the test-relay override, keeping
harnesses isolated.
Tests: new relay-subscribe-cap coverage (bounded + reserved-defaults +
writes-uncapped); spec-corrected user-blocks, subscriptions-manager and
nostr/client fetch tests to bounded (not exact) relay fan-out while
keeping all behavioral/security assertions (per-relay coverage, correct
decrypt, block hydration, dedup) intact. See TEST_INTEGRITY.md and
KNOWN_BUGS #0/#4. Full unit + dm:unit suites green.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Real-env console shows the encrypted lists are FETCHED but DECRYPTION fails on
cold login: hashtags time out at 6s, blocks report signerStatus 'missing', DMs
throw 'helpers unavailable'. Root cause: a relay-connection storm to the user's
~20 dead NIP-65 relays (subsystems use uncapped relayManager read+write) starves
the nip-07 extension. Bumping the decrypt timeout to 15s (matching blocks) is a
partial mitigation for hashtags/subscriptions. The proper fix (bound reads to a
liveness-ranked healthy core incl. defaults + DM decrypt retry) is documented in
KNOWN_BUGS #0 — a first capReadRelays attempt was reverted because capping block
reads broke the security-critical user-blocks integration test.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
handleBlocksLoaded reloaded the feed on every 'blocks-loaded' signal — but a
forced reload re-fetches the lists, which re-emit 'blocks-loaded', a
self-sustaining loop. Now it computes a signature of the block set and reloads
only on actual change (emit-on-change — the P5 principle). handleRelaysLoaded
only touches relay UI; hashtag prefs already dedup by signature.
Cheat-resistant regression test added. Bumped authSessionCoordinator file-size
baseline. Logged 2 pre-existing app test failures (fail at pre-session baseline)
in KNOWN_BUGS. Marks KNOWN_BUGS #2 resolved.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
