Claude Haiku 5.5 (effort default (no --effort flag) · thinking on) on Retirement drawdown with a 4% rule, inflation raises and a skip-raise-after-loss guardrail

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  "result": "I wrote `solve.py` and ran it on the provided `input.json`. It produces `answer.json` and `chart.svg`, and both pass my structural checks.\n\n**Results on the given input (age 65 to 91, 26 years)**\n\n| | standard | guardrail |\n|---|---|---|\n| final_balance | 686,614.75 | 1,008,139.92 |\n| real_final_balance | 353,101.06 | 518,449.79 |\n| total_withdrawn | 1,817,310.89 | 1,652,713.06 |\n| shortfall_total | 0.00 | 0.00 |\n| depletion_age | null | null |\n\nI also ran a synthetic input where the money runs out (8% withdrawal, a 300k start, and a crash in year 0). Both scenarios depleted, at ages 71 (standard) and 72 (guardrail), with positive shortfalls and the guardrail's frozen raises visibly lowering withdrawals. I can't see the hidden reference, so these numbers are checked against my reading of the rules, not against it.\n\n**Choices I made**\n- The solver follows the rules as written. Money is rounded to 2 decimals only when writing, and `real_final_balance` divides by the inflation product over all n years.\n- `chart.svg` goes in the current working directory, as the spec says. It is a plain SVG with the two `<polyline>` elements and no scripts, links, or external references. I checked that it parses and that its root is `<svg>`.\n- I did not run `git` commit since this directory is not a repository, and you didn't ask for a commit.\n\nFiles are in `./usecase-runner/runs/j01-claude-haiku/work/`: `solve.py`, `answer.json`, `chart.svg`.",
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