Applies the 61-day acquisition window of the declared wash-sale method (sale date minus 30 days through sale date plus 30 days, inclusive) to a declared lot sale and a declared replacement-purchase list: it totals the disallowed loss, flags a replacement account declared tax-deferred, and notes the basis carryforward on the flagged taxable path. The verdict reports the declared arithmetic only: WASH_SALE_FLAGGED or WASH_SALE_CLEAR. Undated lots fail closed. HARD FENCE: this is a deterministic calculator over declared numbers under a named rule; it is never advice, never an optimizer, and it renders no tax position on any real holding.
compute_proof_ready: deferred. No formal correctness proof has been produced for this kernel; the result above is a deterministic recompute, verified by a property-test floor, not a proven one.Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.
Run the AINumbers MCP tool `compute_wash_sale_window_guard`. Task: Apply the declared 61-day wash-sale window (sale date plus or minus 30 days, inclusive) to a declared lot sale and a declared replacement-purchase list: totals the disallowed loss, flags a replacement account declared tax-deferred, and raises a basis-carryforward flag on the flagged taxable path; arithmetic of a named rule only, never advice.
Synthetic sample input (policy_parameters): {"sale":{"lot_id":"SYN-A","sale_date":"2026-03-10","realized_loss":1200},"replacement_purchases":[{"date":"2026-03-25","account_type":"taxable"}]}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the returned execution_hash.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-687-wash-sale-window-guard.html#p=v1.H4sIAAAAAAAA_wGSAG3_eyJzYWxlIjp7ImxvdF9pZCI6IlNZTi1BIiwic2FsZV9kYXRlIjoiMjAyNi0wMy0xMCIsInJlYWxpemVkX2xvc3MiOjEyMDB9LCJyZXBsYWNlbWVudF9wdXJjaGFzZXMiOlt7ImRhdGUiOiIyMDI2LTAzLTI1IiwiYWNjb3VudF90eXBlIjoidGF4YWJsZSJ9XX0R7mZDkgAAAA