feat(drive)!: count credit inflows against the daily withdrawal limit - #4486
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QuantumExplorer merged 13 commits intoAug 26, 2026
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The daily withdrawal limit of protocol version 14 (#4457) counted gross outflow: every pooled withdrawal spent the budget and credits entering Platform never restored it, so cycling coins deposit -> withdraw zeroed available() for every user each day at the cost of fees alone (#4471). Every credit mint (asset locks, epoch Core rewards) is now also recorded in a credit-inflows sum tree under the withdrawals root, keyed by the same 25 hour expiry the withdrawal reservations use and pruned by the same per-block cleanup. The daily maximum becomes min(percent of the day-old total + inflows in the window, max_daily_withdrawal_amount) so a deposit -> withdraw cycle nets to zero and blocks nobody, while the inflation guardrail holds: inflows are L1-verifiable (chain-locked asset locks and Core rewards), so a Platform minting bug still cannot raise the budget, and the worst-case drop in the pool level stays the same percent per day. The cap stays a gross bound because it models Core's per-window unlock capacity; once Core treats unlocks net the same way the cap can be raised. The inflow write runs inside user state transitions, so estimated costs cover it (stateless sum-item insert plus a worst-case estimation layer) to keep the estimated >= actual fee invariant. Fixes #4471 Co-Authored-By: Claude Fable 5 <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. 📝 WalkthroughWalkthroughProtocol v14 adds a credit-inflows sum tree for withdrawal accounting. Block execution records minted credits, withdrawal limits use snapshot-relative net accounting, and cleanup removes expired entries from both withdrawal sum trees. ChangesNet withdrawal limit accounting
Estimated code review effort: 4 (Complex) | ~60 minutes Merge Risk: 🟡 Moderate · up to The protocol upgrade may initialize the withdrawal-limit state differently from fresh deployments, which could produce inconsistent behavior for upgraded nodes. This should be resolved or explicitly accepted before merging. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
Full details: Linked Issues checkExplanation The changes implement the requirements in issue Full details: Out of Scope Changes checkExplanation The changes remain within scope. Version wiring, rollback accounting, block-fee tracking, sum-tree initialization and cleanup, limit calculation, and related tests support the credit-inflow withdrawal-limit fix. ✨ Finishing Touches📝 Generate docstrings
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Inline comments:
In
`@packages/rs-drive-abci/src/execution/platform_events/protocol_upgrade/perform_events_on_first_block_of_protocol_change/v0/mod.rs`:
- Around line 727-737: Unify withdrawal-subtree initialization by reusing the
existing [WithdrawalTransactions] GroveDbOpBatch construction path when
transition_to_version_14 adds keys [4] and [5], instead of separate
grove_insert_if_not_exists calls. Ensure fresh v14 initialization and v13
migration produce identical complete subtree layouts and roots, then add a
boundary test comparing those states.
In
`@packages/rs-drive-abci/tests/strategy_tests/test_cases/identity_and_document_tests.rs`:
- Line 190: Align the protocol-13 balance assertion with the latest-version test
contract by using the expected matching balance value, unless the difference is
intentional; if intentional, update the test comment and document the
version-specific balance expectations. Locate the assertion in the protocol-13
identity/document test and compare it with the corresponding latest-version
assertion.
In `@packages/rs-drive/src/drive/identity/withdrawals/estimation_costs/mod.rs`:
- Around line 49-70: Update the withdrawal-root EstimatedLayerInformation
metadata to use sum_trees_weight: 3 and non_sum_trees_weight: 3, matching the
three sum-tree children created by
add_initial_withdrawal_state_structure_operations while preserving all other
weights.
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packages/rs-drive-abci/src/execution/platform_events/protocol_upgrade/perform_events_on_first_block_of_protocol_change/v0/mod.rspackages/rs-drive-abci/src/execution/platform_events/withdrawals/cleanup_expired_locks_of_withdrawal_amounts/mod.rspackages/rs-drive-abci/src/execution/platform_events/withdrawals/cleanup_expired_locks_of_withdrawal_amounts/v1/mod.rspackages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/identity_create/mod.rspackages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/identity_top_up/mod.rspackages/rs-drive-abci/tests/strategy_tests/test_cases/identity_and_document_tests.rspackages/rs-drive-abci/tests/strategy_tests/test_cases/withdrawal_tests.rspackages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rspackages/rs-drive/src/drive/identity/withdrawals/estimation_costs/mod.rspackages/rs-drive/src/drive/identity/withdrawals/mod.rspackages/rs-drive/src/drive/identity/withdrawals/paths.rspackages/rs-drive/src/drive/identity/withdrawals/transaction/queue/add_enqueue_untied_withdrawal_transaction_operations/v0/mod.rspackages/rs-drive/src/util/batch/drive_op_batch/system.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v10.rspackages/rs-platform-version/src/version/drive_versions/drive_identity_method_versions/mod.rspackages/rs-platform-version/src/version/drive_versions/drive_identity_method_versions/v1.rspackages/rs-platform-version/src/version/drive_versions/drive_identity_method_versions/v2.rs
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Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## v4.2-dev #4486 +/- ##
============================================
+ Coverage 84.39% 84.73% +0.34%
============================================
Files 2723 2757 +34
Lines 359568 362750 +3182
============================================
+ Hits 303450 307388 +3938
+ Misses 56118 55362 -756
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thepastaclaw
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Preliminary review — Codex only
The protocol-v14 net-flow design is well covered, but three consensus-critical defects remain: inflows are counted outside the applicable reference interval, fresh and upgraded v14 states produce different withdrawal-tree roots, and the stateless cost model misclassifies one sum-tree child. The protocol-13 strategy-test comment also contradicts the intentionally changed v14 fee result.
Source: reviewer backends gpt-5.6-sol (general, security-auditor, and rust-quality); final verifier backend gpt-5.6-sol. openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only and not reviewer evidence.
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— security-auditor (completed),gpt-5.6-sol— rust-quality (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 3 blocking | 🟡 1 suggestion(s)
1 additional finding(s) omitted (not in diff).
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs`:
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:43-69: Restrict inflows to the interval after the selected historical snapshot
The calculation discards the selected history record's timestamp and adds the total of the entire inflow tree. This violates the relative net-outflow limit at both ends of the window. First, an inflow from time T remains in the 25-hour tree through T+25h, while at T+24h the day-old total snapshot already includes it. During that overlap, X is counted both in the percentage base and as a full inflow, allowing `p*(S+X)+X` of gross withdrawals instead of preserving the intended `p*S` net decrease from the pre-deposit pool. Second, `run_block_proposal_v0` pools withdrawals before cleaning this tree, so the first block after expiration still authorizes withdrawals using expired inflows; the 64-entry cleanup limit can extend that effect across multiple blocks after a time jump. Preserve the `RecordedTotalCredits.time_ms` value and count only inflows after that exact snapshot and still active at `block_info.time_ms`, or otherwise redesign the two windows so credits cannot be double-counted or retained past expiration. Moving cleanup before pooling addresses expired entries but does not by itself fix the 24-to-25-hour overlap.
In `packages/rs-drive-abci/src/execution/platform_events/protocol_upgrade/perform_events_on_first_block_of_protocol_change/v0/mod.rs`:
- [BLOCKING] packages/rs-drive-abci/src/execution/platform_events/protocol_upgrade/perform_events_on_first_block_of_protocol_change/v0/mod.rs:716-737: Build identical withdrawal-tree roots at genesis and during the v14 upgrade
Fresh v14 initialization inserts withdrawal keys `[0]` through `[5]` in one `GroveDbOpBatch`, while a v13-to-v14 upgrade appends `[4]` and `[5]` sequentially with `grove_insert_if_not_exists`. Merk topology is insertion-order dependent. Running both production paths and comparing the parent `[WithdrawalTransactions]` element produced root key `[03]` for fresh v14 and `[02]` for the upgraded state, so the states have different authenticated roots. Use one exact construction sequence for both paths and add a v13-to-v14 boundary test that compares the parent withdrawal-tree element as well as its descendants. The existing `collect_subtree_diffs` helper begins inside the subtree and therefore does not detect a difference in that subtree's own root key.
In `packages/rs-drive/src/drive/identity/withdrawals/estimation_costs/mod.rs`:
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/estimation_costs/mod.rs:59-69: Model all three withdrawal sum-tree children
The withdrawal root has three sum-tree children (`[2]`, `[3]`, and the new inflow tree `[5]`) and three non-sum children (`[0]`, `[1]`, and `[4]`), but this stateless estimator models only two sum trees. GroveDB computes the estimated node size from these weights, and a sum-tree node carries an additional signed-sum value, so classifying `[5]` as non-sum lowers the estimated traversal cost. `AddToSystemCredits` uses this metadata for estimated execution before performing the real sum-item insert, violating the required estimated-at-least-actual fee invariant.
In `packages/rs-drive-abci/tests/strategy_tests/test_cases/identity_and_document_tests.rs`:
- [SUGGESTION] packages/rs-drive-abci/tests/strategy_tests/test_cases/identity_and_document_tests.rs:195-199: Document the intentional v13-to-v14 balance difference
This comment says the protocol-13 balance is identical to the latest-version balance and proves the boundary is cost-neutral, but this PR intentionally changed the latest assertion to `99859022940` while v13 remains `99864009940`. The difference is expected because v14 records the funding inflow and charges for the additional write. Update the test explanation rather than aligning the balances.
…tion The withdrawals tree holds three sum-tree children (reserved amounts, broadcasted queue, credit inflows), not two: weight the estimated layer 3/3 instead of 2/4 so the estimated write is never priced below the applied one. Also document in the protocol-13 solitude test why its balance now sits 4,987,000 credits above the latest-version pin (the v14 inflow write), instead of claiming the pair is identical. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
An inflow spent 24 to 25 hours in the tree while the day-old base snapshot already included it, counting it twice — once in the percentage base and once as an inflow — and letting the pool level drop below the guaranteed share of the day-old total during that hour. An expired entry the bounded per-block cleanup had not deleted yet also kept counting, since pooling runs before cleanup. The limit now sums inflow entries by range instead of taking the whole sum tree: only entries minted after the base snapshot (their expiration key past the snapshot time plus 25 hours) and not yet expired at the block time, mirroring the cleanup's strict cutoff. Regression tests pin both boundaries. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Preliminary review — Codex only
The current head fixes the previously reported inflow-window, cost-estimation, and protocol-boundary documentation issues. One blocking interval mismatch remains: withdrawal reservations continue to be subtracted after the selected historical snapshot already reflects the corresponding outflow; the new inflow range scan also creates a non-blocking scalability concern. Source: reviewer backend gpt-5.6-sol (general, security-auditor, and rust-quality) and final verifier backend gpt-5.6-sol; openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only and not reviewer evidence.
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— security-auditor (completed),gpt-5.6-sol— rust-quality (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 1 blocking | 🟡 1 suggestion(s)
1 additional finding(s) omitted (not in diff).
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs`:
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:91-99: Apply the snapshot cutoff to withdrawal reservations too
The inflow sum now excludes entries already represented by the selected day-old snapshot, but the withdrawal side still subtracts the total of the entire 25-hour reservation tree. The history is recorded after state transitions and fee processing, so it already reflects credits removed by a withdrawal. For example, deposit X at t1 and withdraw and pool X at t2, leaving the pool at S. At t2 + 24 hours, the history query can select the post-withdrawal S snapshot and the inflow is correctly excluded, but the reservation remains in this total until t2 + 25 hours. `available()` is therefore `percent(S) - X` for another hour instead of `percent(S)`, contradicting the PR's guarantee that a deposit-withdraw cycle self-cancels. Align reservation accounting with the selected snapshot so outflows already represented in the base are not subtracted again, and add a regression test with the deposit and withdrawal in distinct blocks that advances through the post-withdrawal snapshot boundary.
- [SUGGESTION] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:122-138: Avoid materializing the entire inflow window for every limit calculation
`PathQuery::new_unsized` fetches every qualifying inflow as owned query results, and `to_elements()` then collects them into another `Vec<Element>` before summation. There can be one entry per minting block over the 25-hour retention interval—about 18,000 entries at five-second spacing. A queued withdrawal that does not fit under the current limit remains queued, causing this full range read and allocation to repeat every block even when the inflow set is unchanged. Store the history in a form that supports aggregate range totals, such as cumulative values or bounded time buckets, and add a scaling test for a densely populated window.
Funding state transitions no longer pay for the credit-inflow write. The per-mint write inside AddToSystemCredits conversion (and the estimation model it needed) is gone; instead the block's applied operations have their mints summed during execution — per state transition in execute_event, and over the fee-processing batch that carries the epoch Core rewards — and run_block_proposal records the total once, next to the total-credits history event, as a system operation nobody is charged for. Funding fees return to their pre-inflow values. The inflow entries land at the same expiry-keyed positions in the same sum tree, so the limit calculation, the seam bounds and the cleanup are unchanged. Mints are summed gross at each apply site rather than derived from the total's net change, which a same-block deposit and withdrawal would cancel out of, reopening the #4471 cycle. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…flects The inflow side of the limit was bounded to the interval after the base snapshot, but the reservation side still subtracted the whole 25-hour tree. The history is recorded after state transitions execute, so a snapshot taken after a withdrawal already reflects its outflow — its reservation kept debiting available() for the hour it outlived the snapshot, so a deposit-withdraw cycle stayed debited instead of cancelling exactly. Both trees now count entries over the same interval: expiration key at or past the block time (unexpired) and past the snapshot plus 25 hours (recorded after the snapshot). A regression test walks a deposit and a withdrawal in distinct blocks through the post-withdrawal snapshot boundary: the inflow and the reservation drop out together and the full percentage of the post-cycle total is available again. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…ecute_event callers check_tx executes events speculatively on a discarded transaction and the test modules call the versioned methods directly; both still used the seven-argument form, breaking the lib-test build. They pass a throwaway accumulator — nothing they apply is ever recorded. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
QuantumExplorer
commented
Aug 26, 2026
…on rollback Two defects found in review: The cap was applied to base + inflows, discarding the inflows exactly when the base reaches the cap — at mainnet totals (~30k Dash, base capped at 4,000) a deposit-withdraw cycle consumed the whole capped budget again, reproducing #4471 under its stated conditions. The cap now bounds only the base (what Core mines out of the standing pool); inflows ride above it, mirroring the net credit-pool rule Core adopts alongside this. A cap-bound cycle regression test pins it. The block's credit-mint accumulator was not rewound with the proposer's savepoint rollback: a minting transition dropped from the proposal (post-apply InternalError) had its writes rolled back but left its mint in the accumulator, recording a phantom inflow for a transition the proposal omits — validators re-executing the proposal would compute different state. The accumulator is now snapshotted with the savepoint and restored on rollback; a fault-injected top-up test pins it (and fails without the restore). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Inline comments:
In
`@packages/rs-drive-abci/src/execution/types/processed_block_fees_outcome/v0/mod.rs`:
- Around line 13-16: Update the Display implementation for
ProcessedBlockFeesOutcome to include the credit_mints field alongside the
existing three fields, and extend the display tests to assert its formatted
value, including a nonzero mint total.
In
`@packages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/mod.rs`:
- Around line 167-169: Rewrite the documentation for
record_credit_inflows_for_withdrawals to clearly state that recording the
block’s credit mints as an inflow increases the net daily withdrawal limit, and
that this feature exists starting with protocol version 14.
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packages/rs-drive-abci/src/execution/check_tx/v0/mod.rspackages/rs-drive-abci/src/execution/engine/run_block_proposal/v0/mod.rspackages/rs-drive-abci/src/execution/platform_events/block_processing_end_events/process_block_fees_and_validate_sum_trees/v0/mod.rspackages/rs-drive-abci/src/execution/platform_events/state_transition_processing/execute_event/mod.rspackages/rs-drive-abci/src/execution/platform_events/state_transition_processing/execute_event/v0/mod.rspackages/rs-drive-abci/src/execution/platform_events/state_transition_processing/process_raw_state_transitions/v0/mod.rspackages/rs-drive-abci/src/execution/platform_events/state_transition_processing/process_validation_result/mod.rspackages/rs-drive-abci/src/execution/platform_events/state_transition_processing/process_validation_result/v0/mod.rspackages/rs-drive-abci/src/execution/platform_events/state_transition_processing/process_validation_result/v1/mod.rspackages/rs-drive-abci/src/execution/platform_events/withdrawals/mod.rspackages/rs-drive-abci/src/execution/platform_events/withdrawals/record_credit_inflows_for_withdrawals/mod.rspackages/rs-drive-abci/src/execution/platform_events/withdrawals/record_credit_inflows_for_withdrawals/v0/mod.rspackages/rs-drive-abci/src/execution/types/processed_block_fees_outcome/v0/mod.rspackages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/identity_create_from_shielded_pool/tests.rspackages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/identity_top_up/mod.rspackages/rs-drive-abci/src/platform_types/state_transitions_processing_result/mod.rspackages/rs-drive-abci/tests/strategy_tests/test_cases/withdrawal_tests.rspackages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rspackages/rs-drive/src/drive/identity/withdrawals/mod.rspackages/rs-drive/src/drive/identity/withdrawals/record_credit_inflow/mod.rspackages/rs-drive/src/drive/identity/withdrawals/record_credit_inflow/v0/mod.rspackages/rs-drive/src/util/batch/drive_op_batch/mod.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/mod.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v1.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v10.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v2.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v3.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v4.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v5.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v6.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v7.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v8.rspackages/rs-platform-version/src/version/drive_abci_versions/drive_abci_method_versions/v9.rspackages/rs-platform-version/src/version/mocks/v3_test.rs
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- packages/rs-drive-abci/tests/strategy_tests/test_cases/withdrawal_tests.rs
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Also tightens the wording on the record_credit_inflows_for_withdrawals version slot documentation. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Final validation — Codex/Sol only (Phase 2 disabled)
At the exact head, the prior blocking snapshot mismatch is fixed: inflows and reservations now use the same snapshot-derived cutoff, with a boundary regression test covering the post-withdrawal snapshot. No blocking issue remains, but the epoch Core-reward mint extraction lacks a direct assertion and the protocol-v14 version-table documentation describes the cap incorrectly. Source: reviewer backend gpt-5.6-sol (general, security-auditor, and rust-quality) and final verifier backend gpt-5.6-sol; openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only and not reviewer evidence.
Validated zero-blocker Codex/Sol precheck evidence was promoted to final because Phase 2 (Sonnet/Opus) is temporarily disabled. This is Codex/Sol-only final validation, not Codex + Sonnet/Opus coverage.
Review provenance
- Codex reviewers:
gpt-5.6-sol— general (completed),gpt-5.6-sol— security-auditor (completed),gpt-5.6-sol— rust-quality (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet/Opus: not run (Phase 2 disabled — temporary Codex/Sol-only final)
- Secondary pass: disabled (
temporary_phase2_sonnet_disable)
🟡 1 suggestion(s) | 💬 1 nitpick(s)
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-drive-abci/src/execution/platform_events/block_processing_end_events/process_block_fees_and_validate_sum_trees/v0/mod.rs`:
- [SUGGESTION] packages/rs-drive-abci/src/execution/platform_events/block_processing_end_events/process_block_fees_and_validate_sum_trees/v0/mod.rs:151-171: Pin epoch Core rewards in the credit-mint outcome
`credit_mints` is consumed by `run_block_proposal_v0` when recording the block's withdrawal-limit inflow, but this fee-processing method has no test asserting that its `AddToSystemCredits` operation is reflected in the returned field. The existing multi-epoch test exercises ordinary and epoch-change blocks and checks payouts, yet its helper discards this part of the outcome. A regression that omitted `DriveOperation::credit_mints(&batch)` would therefore leave the current fee and payout assertions green while failing to restore withdrawal capacity for epoch Core rewards. Assert zero mints on blocks without a Core-reward payout and the expected nonzero reward on the applicable epoch-change block.
In `packages/rs-platform-version/src/version/drive_versions/drive_identity_method_versions/v2.rs`:
- [NITPICK] packages/rs-platform-version/src/version/drive_versions/drive_identity_method_versions/v2.rs:27-31: Describe the cap at the correct side of the inflow addition
This protocol-version table says the day-old base extended by inflows remains capped by `max_daily_withdrawal_amount`, but `calculate_current_withdrawal_limit_v1` deliberately caps the base inside `daily_withdrawal_limit` and adds inflows afterward. The cap-bound regression consequently expects an 8,000-Dash maximum from a 4,000-Dash capped base plus a 4,000-Dash inflow. Update this consensus-version documentation so maintainers do not infer the opposite formula.
…tcome The multi-epoch block fees test now advances Core heights with the chain and asserts credit_mints carries the non-zero Core reward on the paying epoch-change block and zero everywhere else, so dropping the batch mint extraction cannot pass unnoticed. Also corrects the v14 version-table note that still described the cap as applying after the inflow addition. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Preliminary review — Codex only
The credit-mint outcome and version-table fixes resolve both prior findings, but two blocking withdrawal-accounting issues remain: delayed pooling can make reservations debit an outflow already represented by the historical base, and active inflows can raise gross pooling above Core's documented 4,000-Dash unlock-window capacity without an activation gate for matching Core behavior. The new range summation also performs an avoidable proportional allocation.
Source: reviewers gpt-5.6-sol (general, security-auditor, and rust-quality); final verifier gpt-5.6-sol. openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only and not reviewer evidence.
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— security-auditor (completed),gpt-5.6-sol— rust-quality (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 2 blocking | 🟡 1 suggestion(s)
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These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs`:
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:118-123: Use the withdrawal execution time for the reservation cutoff
The snapshot cutoff is applied to reservation keys whose timestamps describe pooling, not the credit outflow. Withdrawal transitions remove system credits and create QUEUED documents during state-transition execution, while `pool_withdrawals_into_transactions_queue_v1` may leave those documents queued until a later block because of the daily or per-block limit. If an outflow executes at t2 but is pooled at t3 after the t2 snapshot has become the day-old base, that base already contains the lower system-credit total; nevertheless, the new reservation expires at t3 + 25 hours and passes the cutoff derived from t2, so X is subtracted again. The regression test avoids this case by removing credits and creating the reservation at the same timestamp. Preserve or derive each withdrawal's original execution time for snapshot-relative accounting, independently of any pooling-based expiry needed for Core submission.
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:109-116: Do not bypass Core's 4,000-Dash unlock-window cap
`daily_withdrawal_limit` already caps the day-old base at `max_daily_withdrawal_amount`, but adding active inflows afterward allows Platform to pool more than that gross amount; the new test explicitly produces an 8,000-Dash maximum from a 4,000-Dash capped base and a 4,000-Dash inflow. This conflicts with the unchanged protocol-v14 documentation in `version/v14.rs`, which states that Core V24 enforces 4,000 Dash per 576-block window and that Platform's cap never exceeds it, as well as the PR description's stated gross-cap invariant. Without an activation dependency proving that Core applies the same net-inflow rule over the same interval, excess unlocks can remain unmined, expire, and be re-signed while delaying other withdrawals. Retain the absolute cap or explicitly gate this Platform behavior on deployment of the coordinated Core rule; merely asserting in a comment that Core adopts it does not enforce upgrade ordering.
- [SUGGESTION] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:159-172: Iterate query results without allocating a second window
`grove_get_raw_path_query` already returns an owned `QueryResultElements`, but `to_elements()` consumes its existing `Vec<QueryResultElement>` and collects all entries into a second `Vec<Element>` before summation. This helper runs for both active-window trees during withdrawal pooling and can process one entry per recording block. Iterating the owned result directly removes the proportional transient allocation without changing the query or accounting behavior.
…ate the range sum
The protocol v14 release notes still described the pre-net-accounting
cap ("which the cap above never exceeds"); they now state that the cap
applies to the day-old base, that inflows are added after it so a
matching deposit-withdraw cycle does not consume the capped budget, and
that outflow above the cap is coupled to Core's V24 net credit-pool
rule landing before activation. The range-sum helper iterates the owned
query results directly instead of collecting a second vector.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Preliminary review — Codex only
The credit-mint accounting, rollback handling, interval range iteration, and display coverage are correct at the exact head. One in-scope blocking mismatch remains: delayed withdrawals are reserved using their later pooling time, so the snapshot-relative calculation can debit an outflow that the selected historical total already reflects. The above-cap behavior is intentionally coupled to Core's matching V24 net-pool rule and is documented as an activation prerequisite rather than treated as another blocker here.
Source: reviewers gpt-5.6-sol (general, security-auditor, and rust-quality); final verifier gpt-5.6-sol. openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only and not reviewer evidence.
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— security-auditor (completed),gpt-5.6-sol— rust-quality (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 1 blocking
1 carried-forward finding(s) already raised on this PR; not re-posting as new inline comments.
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs`:
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:118-123: Use the withdrawal execution time for the reservation cutoff
(existing thread: https://github.com/dashpay/platform/pull/4486#discussion_r3866166079)
The cutoff is derived from the selected total-credit snapshot, but it is applied to reservation keys created when queued withdrawals are eventually pooled. Withdrawal execution removes system credits before the end-of-block history is recorded, while pooling can be delayed by an exhausted daily budget or the per-block limit. If a withdrawal executes at `t2` and is not pooled until `t3 > t2 + 24h`, the selected `t2` snapshot already contains the reduced credit total, yet the reservation expires at `t3 + 25h` and remains above the snapshot-derived cutoff. Its amount is therefore subtracted again even though the level-side outflow is already represented by the base. A maximal 500-Dash delayed reservation can consume the entire 500-Dash minimum budget for another reservation window, allowing an attacker-controlled backlog to suppress other users' pooling. Track the withdrawal execution time separately for snapshot-relative net-outflow accounting while retaining pooling-time reservations for Core's in-flight capacity; the current regression only covers execution and pooling at the same timestamp.
…dits-history-cause-e91105 # Conflicts: # packages/rs-platform-version/src/version/v14.rs
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Preliminary review — Codex only
The credit-inflow recording and snapshot-boundary logic are otherwise consistent, but delayed pooling still applies a pooling-time reservation to a historical base that already reflects the withdrawal's execution-time outflow. The bounded full-window range scans also add attacker-influenceable work to every block with queued withdrawals.
Source: reviewers gpt-5.6-sol (general, security-auditor, and rust-quality); final verifier gpt-5.6-sol. openclaw-agent/cliproxy/gpt-5.6-sol is orchestration-only and not reviewer evidence.
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— security-auditor (completed),gpt-5.6-sol— rust-quality (completed) - Verifier:
gpt-5.6-sol— verifier - Sonnet: not run (deferred by blocker gate)
🔴 1 blocking | 🟡 1 suggestion(s)
1 carried-forward finding(s) already raised on this PR; not re-posting as new inline comments.
🤖 Prompt for all review comments with AI agents
These findings are from an automated code review. Verify each finding against the current code and only fix it if needed.
In `packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs`:
- [SUGGESTION] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:144-160: Avoid full-window scans on every pooling block
`PathQuery::new_unsized` returns every entry in the selected interval, and the helper performs this materialization for both credit inflows and withdrawal reservations whenever queued withdrawals reach limit calculation. At five-second block spacing, either tree can contain roughly 18,000 recording-block entries in the active window, and an unfittable queued withdrawal causes both scans to repeat every block. Because this is an uncharged system calculation and minting-block density is user-influenceable, proposal work scales with sustained recent activity rather than remaining near constant. Use cumulative totals, bounded time buckets, or another aggregate range representation so interval sums require only boundary lookups.
- [BLOCKING] packages/rs-drive/src/drive/identity/withdrawals/calculate_current_withdrawal_limit/v1/mod.rs:118-123: Use the withdrawal execution time for the reservation cutoff
(existing thread: https://github.com/dashpay/platform/pull/4486#discussion_r3866166079)
The snapshot cutoff is derived from the time when the withdrawal reduced Platform's system credits, but it is applied to reservation keys timestamped when the queued withdrawal is later pooled. `pool_withdrawals_into_transactions_queue_v1` can leave a withdrawal queued because of the daily or per-block limit, while `ReserveWithdrawalAmount` sets its expiration from the eventual pooling block. If execution occurs at `t2` and pooling is delayed until `t3 > t2 + 24h`, the selected `t2` history snapshot already contains the reduced credit total, yet the reservation expiring at `t3 + 25h` still passes `counted_from` and subtracts the same outflow again. A maximal 500-Dash reservation can therefore consume the entire minimum daily budget for another reservation window and let an attacker-controlled backlog suppress later users. Preserve or derive execution-time accounting separately for the snapshot-relative net-outflow meter while retaining pooling-time reservations where needed for Core's in-flight capacity; the existing regression only covers execution and pooling at the same timestamp.
Comment on lines
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| let path_query = PathQuery::new_unsized( | ||
| path, | ||
| Query::new_single_query_item(QueryItem::RangeFrom( | ||
| from_time_ms.to_be_bytes().to_vec().., | ||
| )), | ||
| ); | ||
|
|
||
| let (results, _) = self.grove_get_raw_path_query( | ||
| &path_query, | ||
| transaction, | ||
| QueryResultType::QueryElementResultType, | ||
| &mut vec![], | ||
| &platform_version.drive, | ||
| )?; | ||
|
|
||
| let mut total: u64 = 0; | ||
| for result in results.into_iterator() { |
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🟡 Suggestion: Avoid full-window scans on every pooling block
PathQuery::new_unsized returns every entry in the selected interval, and the helper performs this materialization for both credit inflows and withdrawal reservations whenever queued withdrawals reach limit calculation. At five-second block spacing, either tree can contain roughly 18,000 recording-block entries in the active window, and an unfittable queued withdrawal causes both scans to repeat every block. Because this is an uncharged system calculation and minting-block density is user-influenceable, proposal work scales with sustained recent activity rather than remaining near constant. Use cumulative totals, bounded time buckets, or another aggregate range representation so interval sums require only boundary lookups.
source: ['codex']
…dits-history-cause-e91105 # Conflicts: # packages/rs-drive-abci/src/execution/platform_events/state_transition_processing/process_raw_state_transitions/v0/mod.rs
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Issue being fixed or feature implemented
Fixes #4471.
The daily withdrawal limit of protocol version 14 (#4457) counted gross outflow: every pooled withdrawal spent the daily budget and credits entering Platform never restored it. Cycling coins deposit → withdraw therefore zeroed
available()for every user each day at the cost of fees alone, and legitimate high-frequency deposit/withdraw flow burned the budget even though the pool level never moved.What was done?
Every credit mint is recorded per block as a credit inflow the limit adds to its daily maximum, so the limit counts net outflow over the interval after its day-old base snapshot:
[5]), keyed by expiry on the same 25-hour schedule the withdrawal reservations use. Created for protocol version ≥ 14 in the initial state structure and intransition_to_version_14.record_credit_inflows_for_withdrawals, next to the total-credits history event), so nobody pays fees for the write. The block's mints are summed gross where operations are applied — per state transition inexecute_event, plus the fee-processing batch that carries the epoch Core rewards on an epoch change. Gross, not the total's net change: a same-block deposit and withdrawal would cancel out of a net delta and reopen the attack. Asset-lock funding (identity create/top-up, address funding, shield, partial asset-lock use) and epoch Core rewards all count; nothing else mints credits.calculate_current_withdrawal_limitv1 (only referenced by unreleased v14, amended in place) bounds both sides to the same interval: an entry counts while its expiry key is at or past the block time (unexpired, matching the cleanup's strict cutoff even when its bounded batch lags) and past the snapshot time plus 25 hours (recorded after the snapshot). An inflow at or before the snapshot is already inside the base — counting it again would let the pool drop below the guaranteed share; a reservation at or before it describes an outflow the base already reflects — subtracting it again would deny budget the guarantee does not require, and a deposit→withdraw cycle would stay debited for the hour its reservation outlives the snapshot instead of cancelling exactly.cleanup_expired_locks_of_withdrawal_amountsv1 prunes both sum trees under the same per-block limit; v0 stays byte-frozen for released protocol versions.withdrawals/mod.rsso reservations and inflows expire on the same schedule.Properties:
percentof the day-old total per day;max_daily_withdrawal_amountcaps the day-old base, and inflows are added after the cap: capping the sum would hand the whole capped budget back to a deposit-withdraw cycle whenever the base reaches the cap (mainnet conditions of Daily withdrawal limit (#4457) uses gross accounting: deposit→withdraw cycling starves all users' withdrawals #4471). Outflow funded by same-window deposits may therefore exceed the cap; this is deliberately coupled to Core adopting the matching net credit-pool rule for V24 (tracked in Daily withdrawal limit (#4457) uses gross accounting: deposit→withdraw cycling starves all users' withdrawals #4471), which must land before V24 activates — pre-V24 Core caps unlocks per block, not per window, so any daily total remains minable until then.The limit's two range sums walk one entry per recording block over at most the 25-hour window (pruned each block), once per block during pooling. If mint density ever makes that matter, cumulative-total encoding of the (v14-only) inflow tree is the clean upgrade.
How Has This Been Tested?
available()at the full daily maximum, while a withdrawal without a matching inflow still consumes it; inflows cannot push the daily maximum past the gross cap; seam regression tests pin all boundaries — an inflow stops counting the exact block its history entry becomes the base, an expired-but-unpruned entry stops a millisecond past expiry, and a reservation drops out together with its cycle's inflow once the post-withdrawal snapshot is the base (asserted a millisecond before and at the boundary).cleanup_expired_locks_of_withdrawal_amountsv1 unit tests (both trees pruned, v0 untouched);transition_to_version_14test extended to the new subtree.drivelib,drive-abcilib, all strategy tests;cargo clippy --all-targets -D warningsclean ondpp,platform-version,drive,drive-abci. Funding-transition fees are unchanged fromv4.2-dev(the recording is a system operation).Breaking Changes
Consensus-breaking within the unreleased protocol version 14 only: each block that mints credits writes one inflow entry as a system operation, and the daily withdrawal limit formula changes as described. Released protocol versions are untouched (
calculate_current_withdrawal_limitv0 and cleanup v0 are byte-frozen; the new method version slots areNonebefore v14). State transition fees do not change.Checklist:
For repository code-owners and collaborators only
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Summary by CodeRabbit
New Features
Bug Fixes
Tests