fix(platform-wallet): stop the startup sequence reporting integrity it did not establish - #4426
fix(platform-wallet): stop the startup sequence reporting integrity it did not establish#4426bfoss765 wants to merge 5 commits into
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…t did not establish Three defects on the bring-up path introduced or left open by #4359, all of which end the same way: `start_wallet_subsystems` returns a status that promises a contact's DIP-15 addresses exist before Core SPV starts, when they do not. An address the wallet is not watching when the compact-filter scan passes its funding height produces no transaction at all, so each of these is a silent data gap rather than a cosmetic mislabel. 1. A contact pass that reached nobody was recorded as a completed sync. `sync_contact_requests` is log-and-continue per identity — correct for the recurring sweep, and it collapsed "Platform answered, nothing new" into the same `Ok(vec![])` as "Platform answered nobody". With DAPI unreachable the sweep returned an empty success, startup called `record_sync_ran`, and `status()` reported `Ready`. The pass now reports what it reached. `sync_contact_requests_reporting` returns a `ContactSyncReport` carrying the per-identity failure set; `sync_contact_requests` keeps its shape and raises `ContactSyncUnreachable` when nothing at all was read. Startup records the sync only on a complete pass, so a degraded one stays `PartialAccountsPending`. Failures retry themselves: a failed fetch leaves that direction's high-water cursor unadvanced, so the next sweep re-requests exactly the range it missed. 2. A partial identity scan was never retried once any identity was on file. `ScanTally::is_trustworthy` is `identities_seen > 0 || failed_probes == 0`, so a scan that saw index 0 and got no answer at index 1 returns `Ok`; the warm-launch shortcut then skipped discovery on every later launch, and nothing recorded that the scan had been partial. The second identity, and all of its contacts, stayed invisible for the life of the installation. A scan now publishes a verdict — complete, or the indices it could not answer — which the shortcut consults. Two things follow: a partial scan is retried inside its own launch, with the scan key already resolved and within the budget the caller granted; and the verdict rides the changeset so a host that persists it re-opens the question on the next launch. Absence of a verdict deliberately reads as "unknown", not "incomplete", so hosts that have not adopted the field keep the shortcut instead of paying for a scan plus a Keychain round trip before every Core SPV start. The budget-expiry path records the same verdict, since a scan dropped mid-await never reaches its own bookkeeping. Refs #4365. Not closed: no persister vtable carries the field yet, so cross-launch retention still needs the host slot. 3. The seed-binding gate existed only in the Swift wrapper. Everything the drain does with key material is unauthenticated, and `register_contact_account` keys its existence check on `(index, us, them)` rather than on the xpub — so a provider resolving the wrong seed writes contact receiving addresses once, and every later correct-seed pass no-ops. The corruption is permanent and its only symptom is payments that never arrive. iOS gated this in Swift; a JNI binding added later would have inherited the ungated path. The shared sequence now verifies the binding itself, immediately before the drain and only when something is actually queued, so a warm launch with an empty queue still resolves no key material. It fails closed on any error — a provider that cannot answer has not been shown to own the wallet — and skipping costs nothing unrecoverable, because the queue is left intact for the next signer-present drain. Reported as the new `SeedBindingUnverified` status rather than raised, since Core sync must start regardless. Also fixes a latent misreport the rescan path exposed: the discovery-failure statuses claim the identity question is open, and a rescan can now reach them with an identity already on file. They are gated on `identity_id.is_none()`. 20 new tests, including three that drive the real `start_wallet_subsystems` over a mock SDK: a wrong-seed provider registers no contact account and leaves the queue intact, the owning seed drains, and an empty queue never consults the gate at all. The mock's failing fetches reproduce the DAPI-unreachable case for (1) end to end. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Included review availability: Your plan provides up to 1 included review per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe wallet now persists identity scan verdicts, distinguishes incomplete contact synchronization, verifies seeds before draining pending contact crypto, and exposes the resulting startup states through Rust FFI and Swift SDK APIs. ChangesWallet startup integrity
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🔵 Low · up to The new startup guard can trigger seed verification for queues containing only AutoAccept entries, even when no contact-crypto drain is needed. This is a localized, bounded behavior issue that does not by itself block merging but should have explicit owner awareness or be narrowed. Sequence Diagram(s)sequenceDiagram
participant WalletStartup
participant IdentityDiscovery
participant ContactSync
participant PlatformWallet
participant WalletStartupFFI
participant SwiftSDK
WalletStartup->>IdentityDiscovery: run or retry identity scan
IdentityDiscovery-->>WalletStartup: publish scan verdict
WalletStartup->>ContactSync: synchronize contact requests
ContactSync-->>WalletStartup: complete or degraded report
WalletStartup->>PlatformWallet: drain pending contact crypto
PlatformWallet-->>WalletStartup: verified count or seed error
WalletStartup->>WalletStartupFFI: convert startup outcome
WalletStartupFFI->>SwiftSDK: expose statuses and flags
Suggested reviewers: 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
Full details: Title checkExplanation The title clearly describes the main change: preventing wallet startup from reporting integrity or readiness that it did not establish. It is specific and related to the broader startup, synchronization, and seed-verification fixes.
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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…ardening Follow-up to bad2093 on this branch. Each of these is the same failure the original commit set out to fix, surviving on a path it did not cover. 1. The seed-binding gate still had an ungated entry point. The gate landed in `start_wallet_subsystems`, but `platform_wallet_drain_pending_contact_crypto` — the FFI the JNI binding calls — went straight to `drain_pending_contact_crypto` and `drain_auto_accepts` with no check at all. A JNI client draining with a wrong-seed resolver therefore wrote contact receiving accounts from the wrong seed, permanently: `register_contact_account` keys its existence check on `(index, us, them)` and not on the xpub, so no later correct-seed pass revisits them. That is the exact defect the commit message said was closed, still reachable from the entry point it named as the reason to close it. The gate moves into `PlatformWallet::drain_pending_contact_crypto_verified` — one primitive that verifies, then runs both drains — and the startup sequence and the FFI now both drain through it. Behaviour is unchanged on each: the check is still skipped when nothing is queued (a warm launch resolves no key material), still fails closed on every verification error and not only on a mismatch, and still leaves the queue intact. The FFI reports a refusal as `ErrorInvalidParameter` for `SeedMismatch` — the same code the standalone verify already returns, so a host recognises the wrong-seed condition identically however it arrives — and `ErrorWalletOperation` for a provider that simply could not answer. 2. A known-incomplete identity scan could still report `Ready`. `StartupTally` had no way to say "an identity is known and the set it belongs to is not". The discovery signals are gated on `identity_id.is_none()` (correctly — a rescan reaches them with an identity on file), so a launch whose rescan was forced by an incomplete verdict and then failed fell through every check to `Ready`: the status that promises the identity set is settled, on the one launch that knows it is not. `identity_scan_incomplete` is recorded from the verdict on record once discovery is done, and `status()` returns the new `IdentityScanIncomplete` rather than `Ready`. Reading the verdict rather than this call's discovery counters is what makes it correct on the launches that have no counters to read — a warm shortcut, or a rescan abandoned before it started — and it catches the same defect reached from the other side, a first scan that came back partial. The check is ranked last, so the only run whose status changes is the one that used to lie; every other run keeps a status clients already handle and reads the flag on the outcome. `discovery_worth_retrying` covers the new status: the unanswered indices are exactly what another scan could answer. The test that pinned this, `a_failed_rescan_does_not_reopen_a_settled_ identity`, asserted `Ready` for precisely the incomplete-rescan case. Its real subject — a failed rescan must not re-open an identity already on file — is preserved and now sits alongside an assertion that the scan gap IS reported, under a name that says so. 3. A local fault mid-scan published no verdict at all. `publish_scan_verdict` has one call site, below four `?` early returns in `discover_inner` (breadcrumb derivation, the wallet-info lookup, `add_identity`, `add_keys`). A persistence write that failed, or a wallet that left the manager, therefore abandoned the walk part-way through the index space and recorded nothing — and "unknown" is what keeps the warm-launch shortcut armed. Worse, when a previous scan had recorded a COMPLETE verdict, that stale verdict survived the abandoned scan. #4365's shape, on the local-fault path. The scan body now runs in a block whose result is carried out, so no `?` inside it can skip the publish — including any added later. The index the walk died on is recorded as unanswered first, because a verdict built from the probe bookkeeping alone would see an empty failed-index list and publish an abandoned scan as complete, which is strictly worse than publishing nothing. The abort index is tracked apart from `failed_indices` so `failed_probes` and `IdentityDiscoveryIncomplete` keep meaning "probes Platform never answered"; the verdict merges the two, since to a later launch they are the same fact. Note the scan loop is re-indented by one level and not otherwise touched — `git diff -w` shows the real change. The FFI outcome struct gains `identity_scan_incomplete` and the status enum appends `IdentityScanIncomplete = 6`; the Swift mirror follows both, as the `SeedBindingUnverified` append did. 11 new tests. The gate: a wrong-seed provider is refused with the typed error and registers zero contact accounts while the queue survives, the owning seed drains, an empty queue never consults the provider. The scan signal: both directions at the tally level, plus the wire-up driven through the real `start_wallet_subsystems`. The verdict: a real local fault injected mid-scan (a seedless wallet against the resident-key derive) replaces a stale complete verdict with an incomplete one, so the next launch re-scans. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Pushed c968b30 addressing the three findings. All are the same failure this PR set out to fix, surviving on a path the first pass didn't cover. 1 — the seed-binding gate had an ungated entry point. The gate landed in Rather than add a second copy of the check, I moved it into 2 — a known-incomplete scan could still report
I have to flag that my own test was pinning the defect. 3 — a local fault mid-scan published no verdict. The scan body now runs in a block whose result is carried out, so no One review note on that file: the loop body is re-indented one level and not otherwise touched — The FFI outcome struct gains 11 new tests. |
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## v4.2-dev #4426 +/- ##
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- Coverage 87.74% 83.09% -4.66%
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Files 2681 2753 +72
Lines 342632 370990 +28358
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+ Hits 300658 308286 +7628
- Misses 41974 62704 +20730
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In `@packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs`:
- Around line 1092-1146: The ContactSyncReport reachability and completion
tracking conflates remote fetch failures with local ingestion failures. Update
the contact-request sync flow and ContactSyncReport so received-fetch success is
tracked separately, is_fully_degraded() only reflects identities whose remote
received fetch failed, and is_complete() requires successful
persistence/ingestion for both received and sent directions; ensure
persistence-error and local-state-loss branches mark the appropriate incomplete
status without reporting ContactSyncUnreachable when remote fetches succeeded,
and add coverage for both cases.
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packages/rs-platform-wallet-ffi/src/dashpay.rspackages/rs-platform-wallet-ffi/src/persistence.rspackages/rs-platform-wallet-ffi/src/wallet_startup.rspackages/rs-platform-wallet/src/changeset/changeset.rspackages/rs-platform-wallet/src/changeset/identity_manager_start_state.rspackages/rs-platform-wallet/src/changeset/mod.rspackages/rs-platform-wallet/src/error.rspackages/rs-platform-wallet/src/manager/startup.rspackages/rs-platform-wallet/src/wallet/apply.rspackages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rspackages/rs-platform-wallet/src/wallet/identity/network/discovery.rspackages/rs-platform-wallet/src/wallet/identity/network/mod.rspackages/rs-platform-wallet/src/wallet/identity/network/seed_binding.rspackages/rs-platform-wallet/src/wallet/identity/state/manager/accessors.rspackages/rs-platform-wallet/src/wallet/identity/state/manager/mod.rspackages/swift-sdk/Sources/SwiftDashSDK/PlatformWallet/PlatformWalletManagerStartup.swift
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Deep line review from the release-triage side (head c968b30 vs current v4.2-dev — clean trial merge). The three headline fixes verified sound: retry loop bounded (3 attempts under the existing 20s budget), the drainable-count early-out is safe (auto-accepts share the same gated queue), Kotlin has no binding to the startup FFI so the new discriminants cannot crash hosts, Swift handles them with a conservative fallback, and the tests pin behavior with red-proof. Two blockers before merge, both small targeted fixes: B1 — The seed-binding gate misses the payment-path drain; a wrong-seed provider can still write permanent contact-account corruption
Failure scenario (the PR's own threat model — a mis-mapped Keychain/Keystore slot): user taps "send" to a contact while a It also falsifies the gate's own contract: Fix is small: route send_payment's pre-drain through Pre-existing path (not introduced by this PR), but this PR is the integrity-hardening change whose stated purpose and doc comment claim this class is closed. Confidence: high — call chain verified at all four layers. B2 — A persist failure still lets a degraded pass report
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…ingest failure Follow-up to c968b30 on this branch. Both findings are, again, the same failure this change set out to fix, surviving on a path the last pass did not cover. 1. The seed-binding gate missed the payment path. `DashPayView::send_payment` opens by draining the deferred contact-crypto queue — before the write guard, before any funding input is signed — and did so UNVERIFIED. That drain runs the same `RegisterReceiving` / `RegisterExternal` ops the gate exists for, and it is reachable ungated from `platform_wallet_send_dashpay_payment`, from `ManagedPlatformWallet.sendDashPayPayment` (which builds a fresh `MnemonicResolver` and calls straight through) and from `Dashpay.sendPayment`. A mis-mapped Keychain/Keystore slot therefore derived the contact receiving xpub from the wrong seed and registered the account; `register_contact_account` keys its existence check on `(index, us, them)` rather than the xpub, so no later correct-seed pass revisits it. The payment then failed on the funding signatures — but the corruption was already written, and it is permanent. The third entry point to reach these ops with no gate, after the FFI drain and the iOS-only Swift check before it. It also falsified the gate's own contract: "a single place the gate can be removed from and none where it can be omitted" was not true while that call existed. The gated primitive moves down onto `DashPayView`, the handle the drain itself lives on, so there is no longer a way to reach the drain with a provider that has not been through the check. `PlatformWallet::drain_ pending_contact_crypto_verified` keeps its signature and its behaviour and now delegates: it early-outs on an empty queue exactly as before (both passes ride the same queue), calls the view primitive, and runs the DIP-15 auto-accept pass only after that has cleared the provider — so there is still no path to an auto-accept through an unverified provider. The startup sequence and the FFI drain entry point are untouched. The seed-binding check itself moves from `PlatformWallet` to `IdentityWallet` for the same reason (a `DashPayView` derefs to it); `PlatformWallet` keeps both public methods as delegates, so no caller changes. `send_payment` now fails with the typed `SeedMismatch` instead of draining. A payment through a wrong-seed provider could never have succeeded, so nothing that used to work stops working — what changes is that it fails BEFORE writing rather than after. `platform_wallet_send_dashpay_payment` maps that to `ErrorInvalidParameter`, the same code the standalone verify and the drain entry point already use, so a host recognises the wrong-seed condition identically however it arrives. No new result code. 2. A persist failure mid-ingest still reported a complete pass. The three ingest persist-failure branches in `sync_contact_requests_ reporting` set `received_persist_ok` / `sent_persist_ok = false` and `break`, correctly holding that direction's high-water cursor — but none of them marked the identity in the `ContactSyncReport`. The report stayed empty of failures, `is_complete()` returned true, startup's `Some(Ok(report)) if report.is_complete()` arm called `record_sync_ran()`, and the launch could reach `Ready` promising DIP-15 addresses that were never registered before Core SPV started. A held-back cursor and a report that says "complete" cannot both be right: the `break` abandons every remaining fetched request of that direction un-ingested, so their account builds were never enqueued. `ContactSyncReport` gains `unpersisted_identities` and `is_complete()` requires it empty. A separate bucket rather than reusing `failed_identities` because that list is what `is_fully_degraded()` reads to call an outage, and a local write failure on a pass Platform answered in full is not an outage — routing it there would make `sync_contact_requests` return `ContactSyncUnreachable` for a disk problem, telling a host to retry the network for a condition retrying the network cannot fix. That also addresses the review finding on this file asking for remote reachability and local ingestion to be told apart: the two local-state-loss branches (wallet gone, managed identity gone by the time the write guard was taken) move to the new bucket for the same reason, so `failed_identities` is now purely "the received fetch did not come back" and `is_fully_degraded()` is defined on remote reachability alone. The two ingest loops are lifted into `ingest_received_requests` / `ingest_sent_requests`, unchanged apart from returning the boolean rather than assigning it. That is what makes the persist-failure branches reachable in a test: the sweep itself cannot be driven far enough to exercise them without a Platform that answers document queries. 8 new tests. `cargo test -p platform-wallet --features shielded` is green (875, from 867), `cargo clippy` on platform-wallet and platform-wallet-ffi is clean with `--all-targets`, and `rs-unified-sdk-jni` still checks. Each new test was run against the unfixed code first. The wrong-seed payment test fails with `InvalidIdentityData("No DashpayExternalAccount found...")` — the drain having already run — and, with that assertion removed, on the account count: `left: 1, right: 0`, the wrong-seed account registered. The five report / ingest tests fail against `is_complete()` without the new bucket, against `is_fully_degraded()` counting it, and against ingest helpers that return success on a persist failure; the success-path controls pass throughout. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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@shumkov — both blockers fixed in B1 — "The seed-binding gate misses the payment-path drain; a wrong-seed provider can still write permanent contact-account corruption"Confirmed at all four layers exactly as you described, and fixed. Rather than routing
Test: Red proof. Against the unfixed line ( — i.e. the drain had already run and the send failed later, on something else. Removing that first assertion to reach the next one: The wrong-seed account was in fact registered. Both pass with the fix. B2 — "A persist failure still lets a degraded pass report
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Preliminary review — Codex only
The PR improves startup reporting and adds meaningful seed and persistence safeguards, but three in-scope integrity gaps remain: public unchecked drains bypass the new gate, a concurrency window can run auto-accept after verification was skipped, and failed contact writes are not actually retried before the cursor advances. One additional startup error path conservatively reports no identity even after discovery inserted one locally.
Source: reviewers (general, rust-quality, ffi-engineer): gpt-5.6-sol; verifier: gpt-5.6-sol. Orchestration-only, not reviewer evidence: openclaw-agent/cliproxy/gpt-5.6-sol.
Validated blockers were found in the Codex precheck. Opus is deferred until a fresh Codex revalidation clears the blocker gate.
Review provenance
- Codex reviewers:
gpt-5.6-sol— general (completed),gpt-5.6-sol— rust-quality (completed),gpt-5.6-sol— ffi-engineer (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 3 blocking | 🟡 1 suggestion(s)
2 additional finding(s) omitted (not in diff).
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In `packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs`:
- [BLOCKING] packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs:2086-2104: Raw public drain APIs still bypass the seed-binding gate
`DashPayView` is publicly exported, and its unchecked `drain_pending_contact_crypto`, `drain_pending_contact_crypto_until`, `drain_auto_accepts`, and `drain_auto_accepts_until` methods remain public. An external Rust caller can therefore bypass the new verified wrappers and pass a provider for the wrong seed. The provider-only drain can permanently register contact accounts under the wrong xpub, while the auto-accept drain can derive the wrong proof key, classify a valid proof as permanently invalid, and clear it. This contradicts the new invariant documented in `seed_binding.rs` that every drain reaches one gate. Make the raw variants crate-private, move verification into the only public drain boundary, or require a verification-produced provider type that cannot be constructed without passing the seed check.
- [BLOCKING] packages/rs-platform-wallet/src/wallet/identity/network/contact_requests.rs:963-968: A failed contact persist is not retried on the next sweep
Returning `false` correctly makes the current report incomplete and keeps the cursor behind, but the state methods do not preserve a retryable in-memory state. `add_incoming_contact_request`, `apply_rotated_incoming_request`, and the fresh branch of `add_sent_contact_request` mutate the incoming, established, or sent maps before calling `persister.store`. If that write fails, the next sweep re-fetches the held-back range but sees the same request already present in memory, takes a same-reference dedup/no-op path, reports success, and advances the cursor. The backend never receives the failed write, yet a later startup can report a complete sync and `Ready`; after restart the contact state disappears. Persist before committing the mutation to memory, or roll the mutation back on failure, so retaining the cursor actually retries the write.
In `packages/rs-platform-wallet/src/wallet/identity/network/seed_binding.rs`:
- [BLOCKING] packages/rs-platform-wallet/src/wallet/identity/network/seed_binding.rs:255-267: Repeated queue probes can run auto-accept without verification
The outer wrapper first observes a nonempty queue, but the inner verified drain probes the queue again and returns `Ok(0)` without verification if another concurrent drain emptied it. After that unverified return, the outer wrapper still calls `drain_auto_accepts_until`. A recurring contact sweep can enqueue a new `AutoAccept` between those observations, causing the new entry to be processed with an unverified provider. With a wrong seed, the derived proof key fails verification and the valid proof is permanently marked failed and removed. Preserve whether the inner call actually verified the provider, and run the auto-accept pass only in the verified state; add a concurrency test covering nonempty → empty → newly enqueued auto-accept.
In `packages/rs-platform-wallet/src/manager/startup.rs`:
- [SUGGESTION] packages/rs-platform-wallet/src/manager/startup.rs:910-919: A local scan error ignores an identity already inserted incrementally
Discovery inserts sightings incrementally. For example, `add_identity` can insert index 0 before `managed.add_keys` returns a persistence error. This branch records only the local failure, leaving `tally.identity_id` unset, so startup skips contact synchronization and draining and returns an outcome with no identity even though the manager contains one. The timeout branch immediately above already handles the same partial-commit invariant by re-reading local state. Do the same for local errors; `StartupTally::status` will retain the local-failure signal without hiding the known identity.
…tact write retryable Follow-up to 63b69b2 on this branch. Both findings land ON that commit's fixes: each one closed its failure on the path it was looking at and left a neighbouring path holding the same assumption. 1. A queue probe was standing in for a verification. The whole-wallet wrapper probes the queue, delegates to the gated drain, then runs the DIP-15 auto-accept pass. The gated drain re-probes the queue and early-outs on empty WITHOUT verifying — correct on its own terms, since an empty queue derives nothing — but it returned `Ok(0)`, which the wrapper could not tell apart from a verified drain, and ran the auto-accept pass anyway. A concurrent drain emptying the queue between the two probes was enough: `drain_auto_accepts_until` re-snapshots the queue at its own instant, and the recurring contact sweep can enqueue an `AutoAccept` inside that window, so a brand-new entry was processed through a provider nobody had checked. The damage is not a failed pass. `drain_auto_accepts_until` verifies each proof against our re-derived auto-accept key and maps a mismatch to a PERMANENT verdict: the entry is cleared and marked so the sweep's enqueue gate will not re-offer it. A wrong seed re-derives the wrong key, so a perfectly valid proof is destroyed rather than deferred — the same "corruption survives the error" shape as the payment-path drain, one pass over. So verification is now carried, not inferred. Both gated primitives return a `ProviderBinding` recording whether the check actually ran, and the auto-accept pass moves behind its own gated primitive, `DashPayView::drain_auto_accepts_verified`, which takes that binding and runs the check itself whenever it is not already established. The binding is an optimisation, never the gate, and it cannot be forged — both constructors are private to `seed_binding`, so only a primitive that actually ran the check can mint one. There is deliberately no empty-queue early-out on the auto-accept side: the queue it would probe is re-snapshotted inside the drain anyway, so a probe there would only re-open the identical window. Net effect: no interleaving of the wrapper's two passes reaches an auto-accept through an unverified provider. The wrapper keeps its own empty-queue early-out, which still decides whether it does anything at all. 2. Holding the cursor did not actually retry the write. 63b69b2 made a persist failure hold that direction's high-water cursor and mark the identity `unpersisted`, so the pass reports incomplete and the launch stops claiming a sync it did not finish. Neither gets the write to disk: `add_incoming_contact_request`, `apply_rotated_incoming_request` and the fresh branch of `add_sent_contact_request` committed the mutation to memory BEFORE calling `persister.store`. On a failure the request stayed in `incoming_contact_requests` / `established_contacts` / `sent_contact_requests` regardless, and every retry gate reads those maps — the sweep's `tracked_reference == Some(reference)` skip, the no-op guards in `add_sent_contact_request`, the `already_applied` guard in `apply_rotated_incoming_request`. The re-fetched range therefore hit a same-reference dedup, reported success and advanced the cursor. The backend never received the write, a later startup called the sync complete and reached `Ready`, and the contact was gone after a restart. All three now persist before committing, the order `set_contact_metadata` and both rotation branches of `add_sent_contact_request` already used and documented — this extends that discipline to the branches it had not reached rather than introducing a new rule. The two auto-establish paths additionally read the opposite direction's entry with `get` instead of `remove`, so a failed store leaves both sides intact; consuming it first meant the retry could no longer reproduce the auto-establish and silently downgraded the pair to a bare one-directional request. 9 new tests. `cargo test -p platform-wallet` is green (804) and `--features shielded` is 973 passed / 1 failed, the failure being `shield_input_selection_tests::regression_reports_max_from_usable_suffix_not_ total_account_balance`, which fails identically on the untouched branch head and arrives from upstream v4.2-dev (no commit on this branch touches `platform_wallet.rs` except Hash's merge). `cargo clippy --all-targets` is clean on platform-wallet and platform-wallet-ffi, `rs-unified-sdk-jni` checks, and `cargo check --workspace --all-targets` passes. Every new test was run against the unfixed code first. Finding 1 — with the empty-queue early-out reporting a binding it had not established and the auto-accept pass ungated, the three gate tests fail and the controls pass: the auto-accept refusal returns `Ok(0)` where it must error ("an unverified provider must not reach the auto-accept pass: 0", i.e. the pass ran through the foreign provider), and both binding-reporting assertions fail. Finding 2 — with the three branches restored to commit-before-persist, all four retry tests fail. Relaxing their memory preconditions so they run on to the retry itself gives the exact defect: the SECOND sweep returns `true` (complete, cursor advances) while the store count is `left: 0, right: 1` — nothing reached the backend. The rotation test fails on memory sitting at the new reference (`left: 7, right: 0`), which is what trips both of its guards, and the auto-establish test on the outgoing request already consumed (`left: 0`). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Three defects on the wallet bring-up path, all of which end the same way:
start_wallet_subsystemsreturns a status that promises a contact's DIP-15 addresses exist before Core SPV starts, when they do not. An address the wallet is not watching when the compact-filter scan passes its funding height produces no transaction at all — so each of these is a silent data gap, not a cosmetic mislabel.Two come from the automated review of #4359 (findings F1 and F2); the third is the follow-through on a deferral #4368 took deliberately.
1. A contact pass that reached nobody was recorded as a completed sync (F1)
sync_contact_requestsis log-and-continue per identity — right for the recurring sweep, and it collapsed two opposite endings into one return value. "Platform answered, and there is nothing new" and "Platform answered nobody" both arrived asOk(vec![]). With DAPI unreachable every identity's fetch hit thecontinue, the sweep returned an empty success,startup.rscalledrecord_sync_ran, andstatus()reportedReady.Readyis precisely the claim that a contact pass completed, so this fed the persistence-corruption class the audit was tracking: SPV starts against an address set that is silently short.Fix. The pass now reports what it reached rather than only what it found:
sync_contact_requests_reportingreturns aContactSyncReportcarryingidentities_attempted, the identities nothing was ingested for, and the identities whose sent side alone failed.sync_contact_requestskeeps its shape and raisesContactSyncUnreachablewhen there were identities to read and not one was read.dashpay_sync_ran = false, sostatus()staysPartialAccountsPending.Partial passes keep sensible semantics: what was fetched is real and stays persisted, and the failures retry themselves — a failed fetch leaves that direction's high-water cursor unadvanced, so the next sweep re-requests exactly the range it missed. A partial pass is still not complete, because the identities it missed have contact requests nobody looked at and account builds nobody enqueued.
The recurring sweep at
dashpay_sync.rsalready logs-and-continues on anErrfrom this call, so the new error is a strict improvement there too: a total outage used to be recorded as a successful sweep.2. A partial identity scan was never retried once any identity was on file (F2 = #4365)
ScanTally::is_trustworthyisidentities_seen > 0 || failed_probes == 0, so a scan that saw index 0 and got no answer at index 1 returnsOk— correctly, since discarding what it found would be worse. Butstart_wallet_subsystemsskipped discovery whenever any identity was on file, and nothing recorded that the scan had been partial. There was no next scan. The second identity, and every contact hanging off it, stayed invisible for the life of the installation.Fix. A scan now publishes a verdict — complete, or the specific indices it could not answer — and the shortcut consults it. Two things follow:
PlatformWalletChangeSet::identity_scan_stateand restores throughIdentityManagerStartState::scan_states, so a host that persists it re-opens the question on the next launch.The budget-expiry path gets the same treatment, since a scan dropped mid-await never reaches its own bookkeeping — without it that path reproduces the bug in its own right, by consulting local state, finding the sighting persisted before cancellation, and recording a warm launch.
Absence of a verdict deliberately reads as "unknown", not "incomplete". Treating unknown as incomplete would make every launch on a non-adopting host pay for a full gap-limit scan plus a Keychain round trip before every Core SPV start — the cost the shortcut exists to avoid, and which review specifically asked to remove.
Refs #4365 rather than closing it: no persister vtable carries the field yet, so cross-launch retention still needs the host slot. See Residual limitations.
3. The seed-binding gate existed only in the Swift wrapper (#4368 follow-through)
Everything the drain does with key material is unauthenticated, and
register_contact_accountkeys its existence check on(index, us, them)— not on the xpub. A provider resolving the wrong seed therefore writes contact receiving addresses once, and every later correct-seed pass no-ops forever. The corruption is permanent and its only symptom is payments that never arrive.iOS enforces this in
PlatformWalletManagerStartup.swiftbefore it calls across. #4368 named the exposure and deferred it:Fix. The shared sequence verifies the binding itself, via the existing
PlatformWallet::verify_seed_binds, immediately before the signer-present drain. Three properties worth calling out:drainable_contact_crypto_count() > 0. With nothing queued the drain would derive nothing, so there is no wrong-seed write to prevent — and a warm launch still resolves no key material at all.WalletStartupStatus::SeedBindingUnverified(FFI discriminant 5, SwiftseedBindingUnverified), plusseed_binding_unverifiedon the outcome. Core sync must start regardless.The Swift check stays. The two are not redundant: Swift throws and refuses the call outright, which is the right behaviour on a host that can, while the Rust one fails closed and reports — it has to let Core SPV start.
Also fixed
A latent misreport the rescan path exposed.
DiscoveryFailedandPartialNoIdentityboth claim the identity question is still open. That used to be structurally guaranteed — discovery ran only when nothing was on file, and every branch that found something returned early — but a rescan forced by an incomplete prior scan reaches those branches with an identity already recorded. Both are now gated onidentity_id.is_none(), so a failed rescan no longer hides a sync and drain that both ran.Tests
20 new tests;
cargo test -p platform-wallet --features shieldedgoes 837 → 857, 0 failures. Clippy clean.Three drive the real
start_wallet_subsystemsover a mock SDK rather than restating the tally rules:a_wrong_seed_provider_never_reaches_the_drainSeedBindingUnverified, no contact account registered, queue intact for the next drainthe_owning_seed_passes_the_gate_and_the_drain_runsan_empty_queue_skips_the_gate_entirelya_contact_pass_that_reached_nobody_is_not_a_completed_syncdashpay_sync_ran == falsePlus unit coverage for the rules themselves:
ContactSyncReportacross clean-empty / no-identities / partial / sent-side-only / total;ScanTally::verdictfor the exact #4365 shape (found at 0, failed at 1 → trustworthy and incomplete); and the scan-verdict round trip, including that unknown ≠ incomplete and that a clean rescan clears an earlier partial verdict.Residual limitations
pending_contact_crypto_addedalready carries. Within a process it redirects a second bring-up, and the in-launch retry closes the window whenever Platform recovers inside the budget. What remains open is a probe that fails for the entire budget and is never revisited after a restart. Adopting it needs an FFI vtable slot plus SwiftData/Room columns; the SQLite reference persister cannot demonstrate the round trip either, since itsload()still does not rehydrateClientStartState::wallets(WALLET_RESTOREis not attested).SeedBindingUnverifiedis a new enum variant in Rust, the FFI (discriminant 5) and Swift. Additive and appended, but a host matching exhaustively on the status will need the arm.🤖 Generated with Claude Code
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