Claude Haiku 5.5 (effort default (no --effort flag) · thinking on) on Rebalance to target weights with whole shares and highest-cost-first tax lots

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  "result": "I wrote `solve.py` in the work directory and ran it on the given `input.json`, which produced `answer.json`. I checked the numbers by hand and they agree.\n\n**Result on the given input:**\n- Sell 345 GLD. The lot slices are L005 (277 shares) and L006 (68 shares), both short-term, for gains of 9,686.69 and 2,614.60.\n- Buy 9 AAA, 134 EMK and 212 TIPS.\n- Realized short-term gain is 12,301.29, long-term is 0. Estimated tax is 3,936.41.\n- Cash after is 303.43. Total value is 329,077.48.\n\n**Checks I did by hand:**\n- The GLD sell is floor((159,004.04 \u2212 76,665.05) / 238.03) = 345.\n- L005 was acquired exactly 365 days before `as_of`, so it correctly counts as short-term.\n- The buy caps and the cash after the buys reconcile to the output.\n- The weights recompute to the stated six-decimal values.\n\n**Choices I made where the spec was open:**\n- Shares use `Decimal` floor division (`//`), so there is no rounding error at exact boundaries.\n- Symbols are the union of prices, targets and held lots. A symbol with no price is never traded.\n- Output money and weights are JSON numbers (floats of the quantized Decimals), not strings.\n- The git attribution reminder doesn't matter here because this isn't a git repository, so I made no commit.\n\nI did not test the fresh-input cases (sell-out of a target-0 symbol, and lots at exactly 365 and 366 days). The logic covers them, but I have not run them.",
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