Borrowing it
Nothing to install: this file belongs to haiiibin/claude-multi-agent-investing. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/haiiibin/claude-multi-agent-investing/main/.claude/commands/tax-harvest.mdgit clone --depth 1 https://github.com/haiiibin/claude-multi-agent-investingWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/haiiibin/claude-multi-agent-investing/tax-harvest)<a href="https://agentmods.dev/commands/haiiibin/claude-multi-agent-investing/tax-harvest"><img src="https://agentmods.dev/badge/commands/haiiibin/claude-multi-agent-investing/tax-harvest/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/commands/haiiibin/claude-multi-agent-investing/tax-harvest"><img src="https://agentmods.dev/badge/commands/haiiibin/claude-multi-agent-investing/tax-harvest.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00050 | $0.01793 |
| Opus 5 | $0.00025 | $0.00897 |
| Sonnet 5 | $0.00010 | $0.00359 |
| Haiku 4.5 | $0.00005 | $0.00179 |
Grade A, and why
tax-harvest scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/tax-harvest -- Canadian Tax-Loss Harvest
Advisory only. Advisory only. Most useful Nov-Dec; works year-round.
Canadian rules enforced
- Superficial loss (ITA 54): buy same/identical property within 30 days before OR after sale in ANY affiliated account (TFSA, RRSP, spouse, controlled corp) → loss denied and added to ACB of replacement. 60-day window total.
- Identical property: judgment call, not a hardcoded list. Walk the Phase 3 decision tree. Clear-identical examples: cross-listed pairs (BAM ↔ BAM.TO), same-issuer same-index ETFs (VFV.TO ↔ VOO). Grey-zone (likely identical per practitioner consensus even without case law): SPY ↔ IVV ↔ VOO.
- T+1 settlement (since May 2024). Last trade day for 2026 tax year = Dec 30.
- ACB pooled across ALL accounts for identical property.
- Capital losses offset capital gains only. Carry back 3yr / forward indefinitely.
Phase 1 -- Audit
Filter holdings.json to account_type: taxable (skip TFSA + RRSP).
Per holding: unrealized gain/loss (native + CAD), holding period. Apply safe_yield check (CLAUDE.md). Flag stale cost basis per split-detection rule.
Phase 2 -- Candidate identification
For each loss position:
- Threshold: ignore losses <$500 CAD (friction not worth it) unless user overrides
- 60-day window BOTH directions:
- Past 30 days: check
memory/long_term/trades.mdfor buys of this ticker in any account → if found, SKIP (loss already superficial) - Next 30 days: check
memory/long_term/journal.mdfor "waiting for {ticker}" plans, GTC limits, DRIP schedules → require explicit user confirmation "I will NOT buy within 30 days" - DRIP trap: if ex-div date is within next 30 days AND DRIP enabled, auto-reinvest IS the affiliated buy. Loudly flag.
- Any hit → loss is denied + added to replacement ACB (user benefits eventually, just not this year)
- Past 30 days: check
- Cross-account ACB: if held in other accounts at a gain, pooled ACB partially offsets. State explicitly.
- Gain-harvesting companion (optional): if taxable has large gains, pairing a gain sale with a loss sale is tax-neutral rebalancing. Useful for moving winners (sell in taxable → contribute to TFSA next year).
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 12d ago First seen · 129 lines · 50 tokens per session scan A e248e3386b1d
tax-harvest is a command published in the GitHub repository haiiibin/claude-multi-agent-investing (2 stars, last pushed 21d ago), licensed MIT. It adds 50 tokens to every session and 1,793 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other commands, from other repositories
cost
Cost & capacity health — LLM router savings, run-rate, cost-per-deploy, ROI per shipped feature, WoW/MoM delta. Pairs with /digest (delivery+DORA) and /burn (reliability).
close-review
Month-end close / GL compliance check — invokes accounting-reviewer to produce TM-accounting-{slug}.md with double-entry integrity, ASC 606 revenue-recognition, period-lock, and SOX ITGC gaps.
procurement-review
Procurement / source-to-pay compliance check — invokes procurement-reviewer to produce TM-procurement-{slug}.md with three-way match, segregation-of-duties, OFAC-screening, and SOX procurement-controls gaps.
tax-review
Tax-filing compliance check — invokes tax-reviewer to produce TM-tax-{slug}.md with MeF e-file schema, Form 8879, PTIN/Circular 230, and IRC §7216 consent gaps.
portfolio
View TastyTrade portfolio summary (positions and balances).
tax-sanity
Tax awareness sanity-check (NOT tax advice). Walks through entity tax-efficiency, deductions, growth structure, quarterly estimateds, multi-jurisdiction, retirement/long-term questions. Produces a Tax Readiness Checklist for the person's meeting with their accountant.