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nick-doc/Taskmaster/Tasks/task-4-3.md
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---
taskmaster_id: "4.3"
status: "done"
priority: "high"
depends_on: ["2"]
parent_id: "4"
source: "taskmaster"
generated_at: "2026-05-24T07:26:29.052Z"
---
# 4.3 - Specify funds ledger and escrow state machine
- [x] 4.3 - Specify funds ledger and escrow state machine #taskmaster #priority/high #status/done ⏫ 🆔 tm-4-3 ⛔ tm-2
## Metadata
| Field | Value |
| --- | --- |
| Taskmaster ID | 4.3 |
| Status | done |
| Priority | high |
| Dependencies | 2 |
| Parent | 4 - Define backend security and refactor strategy from latest audit |
## Description
Define canonical money movement and legal state transitions before refactor or provider migration.
## Details
Completed. Produced `09 - Audits/Funds Ledger and Escrow State Machine Specification.md` (states, transitions, invariants, and migration guidance for canonical funds/escrow transitions).
Create specs for FundsAccount, LedgerEntry, FundsBalance, gross paid, provider fees, platform fees, held, disputed, releasable, released, refunded, idempotency keys, reconciliation behavior, purchase request states, payment states, escrow/funds states, dispute states, valid transitions, forbidden transitions, and release/refund/admin override preconditions.
## Verification
Spec can be used to reject double-release, release-during-dispute, underfunded payout, and ambiguous provider-event scenarios.