feat: schedule the sweep, aggregate its buckets, and hold the granted-root pairing - #1341
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…-root pairing Three rotation-lifecycle gaps, one diff. Schedule the lazy wave. `run_sweep` was the whole idle-cadence loop — the Scheduler sleep, the pass cap, the retryable-vs-trust split — with no production caller anywhere in the workspace. `run_sweep_job` is the job that makes it live: idle one cadence, sweep every scope the round names, report each result, repeat until a round says stop. The cadence is the sync timing profile's new `sweep_cadence`, deliberately coarser than `poll_cadence`, and the idle comes first so the job never sweeps in the same wake as the cut or the poll tick that spawned it. `SweepReporter` is how the index self-heal and the residual buckets reach a host that has no return value to read. Aggregate the driver's buckets. `run_sweep` returned only the final pass's outcome, so a node re-sealed and an index repaired-and-flagged in pass 1 vanished from the report when a sibling's lost race forced pass 2. Durable work is now a union across passes; the residuals stay the final pass's alone, since each is re-derived from published records every pass. Hold the scope-id to scope-root-name pairing. `GranteeRotationNet` addresses a scope by id but a grantee cannot derive its root's name, so the pairing is caller-held. `GrantedScopeRoots` is that inventory — seeded from the durable received-shares bookmark, extended by each accept — and `ReceivedShare` now persists the scope id the accept's `AcceptOutcome` learned, because nothing recovers it from the name at cold start. `sweep_task` is the matching sweep-task factory the net's `sweep` field wants. Also: an already-satisfied relocation out of a granted source now queues its scope-exit trigger. The node has left the scope whether or not this op had to publish it, and a swallowed trigger leaves a revokee holding a live seed. The facade wiring that constructs the job over the real net is not landed; this is the engine-side surface it will call. Closes #1017 Closes #754 Closes #1018
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This repository does not receive automatic reviews because it has fewer than 10 stars. ⚙️ Run configurationConfiguration used: Path: .coderabbit.yaml Review profile: CHILL Plan: Pro Plus Run ID: WalkthroughThe PR adds persisted scope identifiers to received shares, adds idle-cadence sweep scheduling and cumulative outcome reporting, and carries scope-exit triggers through rebase resolution. It also updates timing profiles, public exports, fixtures, tests, and related documentation. ChangesReceived-share scope identifiers
Idle sweep scheduling and aggregation
Scope-exit trigger propagation
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🟠 High · up to The change can select one scope root when multiple shares claim the same scope ID, potentially rotating the wrong root while another remains live, and it can report the same node in conflicting sweep-result buckets. These are concrete security and correctness risks, so the PR is not ready to merge until they are fixed. Sequence Diagram(s)sequenceDiagram
participant Scheduler
participant run_sweep_job
participant ScopeProvider
participant run_sweep
participant OutcomeReporter
Scheduler->>run_sweep_job: wait for sweep cadence
run_sweep_job->>ScopeProvider: obtain next scope round
run_sweep_job->>run_sweep: process each scope
run_sweep->>run_sweep: aggregate successful pass outcomes
run_sweep_job->>OutcomeReporter: report result
run_sweep_job->>Scheduler: wait for next round or terminate
Possibly related issues
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…ed-root pairing /simplify, /security-review and the crypto-privacy pass, applied. Shape. `run_sweep_job` drops `SweepReporter`, `SweepRound` and two generics for the convention `run_tick_loop` already set — `impl AsyncFnMut` for the round, a plain reporting closure, the way `run_liveness_loop` lets the facade map to an `Event`. `sweep_task` is gone: its real consumers take a `Fn([u8;16]) -> BoxedTask` built over owned seams, which only the facade holds, so shipping a public helper of a different shape bought nothing. Head-of-line blocking. The job passed its own idle cadence to `run_sweep` as the inter-pass retry sleep, so at 900 s production one contested scope parked the round for half an hour and every other granted scope behind it. Each scope now gets one pass per round: the wave is idempotent and comes back every cadence, so the round is the retry. Disjoint buckets. `Cumulative` unioned `converged` across passes without subtracting the final pass's residual, so a node re-sealed early and unreadable late was reported in two buckets at once — against `SweepOutcome`'s own one-node-one-bucket guarantee. One inventory, not two. `GrantedScopeRoots` was a second index over `ReceivedSharesList` keyed differently from it — the list is keyed by scope-root name, the index by scope id — with no owner keeping the two in step. The accessors now hang off the list itself. `scopeId` is authored by the sharer and bound to nothing outside its own record, so two sharers can present the same one; an id more than one bookmark claims answers for neither, rather than aiming a rotation at whichever sorted first. Only write-capable shares join a sweep round, per the blueprint's "runnable by any write-capable client". No whole-vault cut from a drop. The full-depth walk falls back to the vault root so an applied exit always cuts something. Reached from an already-satisfied drop that fallback was a remotely-triggerable full-vault re-seal: a co-writer performs the move and deletes the vacated folder. `ScopeExit` now carries both readings — the fallback for an exit this op performed, the walk's own answer for one it only observed — and `OpResolution::Dropped` carries the trigger instead of the replay loop re-deriving it. The flat-cut assertions are dropped: `net/rotation.rs`'s `a_grantee_cut_is_flat_and_carries_the_committed_set_verbatim` already proves both halves against the real `GranteeRotationNet`, over a staged descendant record, and additionally checks the carried index in the opened write body.
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August 20, 2026 11:04
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| Filename | Overview |
|---|---|
| crates/engine/src/rotation/sweep.rs | Adds the scheduled sweep job and cumulative pass outcomes; the final-pass scope-root subtraction resolves the previously reported overlapping-bucket defect. |
| crates/engine/src/grants/accept.rs | Persists scope IDs with received shares and derives fail-closed scope-root and writable-scope pairings. |
| crates/engine/src/sync/rebase.rs | Refines scope-exit trigger propagation so observed drops do not incorrectly fall back to whole-vault rotation. |
| crates/engine/src/profile.rs | Adds explicit production and CI sweep cadence values to the timing profile. |
| crates/engine/src/grants/received_share_store.rs | Updates durable received-share storage behavior for the new versioned scope-ID field. |
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In `@crates/engine/src/grants/accept.rs`:
- Around line 1130-1134: Remove the duplicate domain-rationale comments in
crates/engine/src/grants/accept.rs at lines 1130-1134 and 1162-1163, covering
the scope-ID ambiguity and write-capability rationale. Preserve the existing
test names, assertions, and behavior; no other changes are needed.
- Around line 249-267: Update paired to group all entries by scope_id before
applying IPNS-name parsing or the keep permission filter, rejecting every group
with multiple bookmarks; only unique groups may then undergo validity and write
checks. Preserve returning GrantedScopeRoot for unique, valid, permitted
entries, and add regressions covering write/read and valid/malformed duplicate
pairs.
In `@crates/engine/src/rotation/sweep.rs`:
- Around line 705-711: Update the residual set in the final convergence
filtering logic to also include IDs from last.skipped_scope_roots, alongside
dropped_lost_race and unreachable_nodes, before retaining converged nodes.
Preserve the existing retain behavior so IDs classified as skipped scope roots
are removed from converged and remain in only one result bucket.
In `@crates/engine/tests/sync.rs`:
- Around line 849-867: Add an “prune” entry to the cases table alongside the
existing non-relocation operations, constructing it with Op::prune and the
appropriate test identifiers and timestamp so trigger regressions for prune are
covered.
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📒 Files selected for processing (12)
blueprint/engine.mdcrates/engine/src/grants/accept.rscrates/engine/src/grants/received_share_store.rscrates/engine/src/lib.rscrates/engine/src/net/liveness.rscrates/engine/src/profile.rscrates/engine/src/rotation/mod.rscrates/engine/src/rotation/sweep.rscrates/engine/src/rotation/sweep/sim.rscrates/engine/src/sync/rebase.rscrates/engine/src/testkit/conformance/received_share_store.rscrates/engine/tests/sync.rs
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… out of converged `paired` applied the write filter and the IPNS-name parse before grouping by `scopeId`, so a claimant either one discarded stopped counting toward ambiguity and the survivor answered for a contested id. A rotation would then cut one sharer's root while the revokee on the other kept a live seed. Group over every bookmark first; narrow only a group already proven unique. `Cumulative::finish` subtracted only the final pass's lost races and unreachable nodes from the union, so a node an early pass re-sealed and a concurrent mint then promoted to a descendant scope root was reported in both `converged` and `skipped_scope_roots`. A host reading it as swept interior state would skip the cascade rotation the boundary now needs. Subtract the final pass's skipped scope roots too. `flagged_indexes` stays outside that partition: it records an index repair, which co-occurs with a skipped scope root by construction. The non-relocation table asserted only `scope_exit_triggers`, which every non-relocation arm of `rebase_one` hardcodes to `None` — the assertion could not fail for any op kind. Assert `scope_exit_source` at its source so the table gates, and add the missing `prune` row.
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Three rotation-lifecycle gaps that share the same seams, in one diff.
Schedule the lazy wave — Closes #1017
run_sweepalready was the idle-cadence loop the blueprint asks for — theSchedulersleep, the pass cap, the retryable-vs-trust split — and had no production caller anywhere in the workspace. What was missing was the job that spawns it and the profile field that feeds its cadence.SyncTimingProfile::sweep_cadence— 900 s production, 2 s CI, provisional in the same senseescalation_windowandpointer_consult_intervalare. A profile test pins it strictly coarser thanpoll_cadencein both profiles. This closes the blueprint's "Sweep cadence" open edge, which the diff removes.run_sweep_job(crates/engine/src/rotation/sweep.rs:773) — idle one cadence, sweep every scope the round names, report each result, repeat until a round names nothing. The idle comes first, so a freshly spawned job never sweeps in the same wake as the cut or the poll tick that spawned it. Time enters only throughScheduler::sleep. The round is re-asked each time, so a scope adopted or revoked mid-session joins or leaves without restarting the job.run_liveness_loop+emit_renewal_failures: rotation stays ignorant ofEvent, and the facade maps outcomes toEventvariants when it wires this up.Gate:
an_idle_scope_converges_with_no_user_write,a_second_round_over_a_converged_scope_republishes_nothing,the_cadence_comes_from_the_injected_timing_profile,a_contested_scope_costs_one_pass_and_is_retried_by_the_next_round,the_job_reports_a_failure_to_the_host_and_keeps_running,the_job_ends_when_a_round_names_no_scopes,the_job_parks_across_a_focus_window_poll_tick— the last drives a manual virtual clock and proves a wholepoll_cadenceelapses with the job still parked.Aggregate the driver's per-pass buckets — Closes #754
run_sweepreturned only the final pass'sSweepOutcome, so a node re-sealed and an index repaired-and-flagged in pass 1 vanished the moment a sibling's lost race forced pass 2 — and the host's only notice of a#38 D6self-heal went with it.Cumulativenow folds the passes:convergedandflagged_indexesunion across passes; the residual buckets stay the final pass's, because each is re-derived from published records every pass. The union yields to those residuals — a node re-sealed early and unreadable late is reported unreachable only, soSweepOutcome's one-node-one-bucket guarantee holds of the aggregate too.already_convergedexcludes anything the run itself re-sealed.Gate:
an_index_flag_from_an_early_pass_survives_a_later_one,a_node_the_driver_resealed_is_never_reported_as_needing_no_work,a_node_converged_early_then_unreachable_late_is_reported_unreachable_only.Hold the scope-id to scope-root-name pairing — Closes #1018
Per the wiring note on the issue:
GranteeRotationNetaddresses a scope by id and takes aGrantedScopeRootslice, but a grantee cannot derive a scope root's name — that derivation runs off the write scope seed only the record conveys — so the pairing has to be held rather than computed.ReceivedSharesListalready is that held inventory; it was only missing the id. SoReceivedSharegains a persistedscope_id, written from the gate-adopted envelope inaccept_share, and the accessors hang off the list rather than beside it — no second index, no owner needed to keep two containers in step.STORED_LIST_Vgoes to 2 and the frozen byte vector is re-pinned; v2 is greenfield, so no stored list predates this.Two fail-closed exclusions:
scopeIdis authored by the sharer and bound to nothing outside its own record, so two sharers can present the same one; the list is keyed by name, so both entries are legitimately held. Answering with either would aim a rotation at one sharer's root while the revokee on the other keeps a live seed.Also closed from that issue's residual list:
AlreadySatisfiedbranch. An already-satisfied relocation out of a granted source now queues its scope-exit trigger. The node has left the scope whether or not this op had to publish the move.a_scope_exit_already_reflected_in_gate_passing_state_still_rotates.create_delete_rename_and_content_edits_rotate_nothingnames all four kinds instead of leaving the property merely true.The remaining gate bullet — the grantee rotation is flat, and the committed tag set is byte-identical across it, against a real
rotate_scope— is already delivered onmainbya_grantee_cut_is_flat_and_carries_the_committed_set_verbatim(crates/engine/src/net/rotation.rs:4803), which asserts both halves through the productionGranteeRotationNetover a staged descendant record and additionally checks the carrieddirectChildScopeIndexin the opened write body. This PR does not re-prove it at lower fidelity.A drop must not escalate into a whole-vault cut
The full-depth walk falls back to the vault root when no granted ancestor is listed, so an exit this device performed always cuts something. Reached from an already-satisfied drop, that fallback was a remotely-triggerable full-vault re-seal — a co-writer performs the move, deletes the vacated folder, and the local replay queues a root rotation for an op that published nothing.
ScopeExitnow carries both readings — the fallback for an exit this op performed, the walk's own answer for one it merely observed — andOpResolution::Droppedcarries the trigger, so the replay loop no longer re-derives it or discriminates onDropReason.an_already_satisfied_drop_whose_source_is_gone_rotates_nothing.Not landed here
run_sweep_joband constructsGranteeRotationNetover the real seams.facade.rsis not this round's to touch, so this PR is the engine-side surface that wiring will call — including theFn([u8;16]) -> BoxedTasksweep-task factory, whose owned seams only the facade holds.ReceivedSharesListonscope_idso a re-pointed scope heals its bookmark in place instead of appending a second one. That reshapesreconcile/revertand the durable duplicate rule, so it belongs in its own diff; the ambiguity refusal above is the fail-closed interim.Gates
cargo fmt --all --check,cargo clippy --workspace --all-targets -D warnings,cargo test --workspace,cargo check -p cipherbox-wasm --target wasm32-unknown-unknown --all-targets,pnpm lint:tracker-refs— all clean. No TypeScript touched.Mutation-checked: reverting the bucket union, the residual subtraction, the sleep-first ordering, the
AlreadySatisfiedtrigger, the drop-path fallback guard, the ambiguous-id refusal, and the write-capable filter each fails a named test.Note
Schedule sweep job, aggregate passes, and add
scope_idtoReceivedSharerun_sweep_jobidles bysweep_cadence(900s production, 2s CI inSyncTimingProfile), then runs one pass per scope from around()source until exhausted.run_sweepnow aggregates results across passes viaCumulative, preserving converged/flagged indexes while deferring residual buckets to the final pass.ReceivedSharegains a persisted 16-bytescope_id;paired()derives unambiguous granted scope roots and writable child scope refs from bookmarks, excluding invalid IPNS names and scope IDs appearing in multiple bookmarks.OpResolution::Droppednow carries an optionalscope_exit_trigger. Already-satisfied relocations still queue rotations (with vault-root fallback for applied), while dropped relocations without a found granted root do not escalate to vault-root cuts.STORED_LIST_Vbumped from 1 to 2 in accept.rs;read_stored_listrejects entries lacking the 16-bytescopeIdfield.granted_source_rootin rebase.rs no longer falls back to snapshot root; fallback decisions moved toScopeExit.Macroscope summarized a55a40d.