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A-Share Paper Trading & Backtesting

Spins up a local China A-share paper-trading service plus CLI so Claude can manage accounts, place orders, and run backtests.

Data & AnalyticsIntermediate★ 226⑂ 41AI score 9/10Last updated: Jun 24, 2026

What it does

  • Runs a self-contained paper-trading HTTP service on 127.0.0.1:18765, with a control script for start/status/stop and optional launchd autostart on macOS.
  • Full CLI: create/reset multiple accounts, add/deduct cash, limit and market buy/sell, cancel orders, inspect positions, orders and trades (JSON output preferred).
  • Realistic A-share matching rules: 100-share lots, T+1 sell restriction, price limits (10% main board, 20% ChiNext/STAR, 5% ST), market orders only during continuous auction, stale-quote protection, day orders expiring at close, commission minimums, stamp duty and Shanghai transfer fees.
  • backtest command for simple strategies (e.g. SMA cross) plus scheduled net-value snapshots.
  • Built-in agent policies: confirm initial capital (default ¥1,000,000), ask which account when several exist, and a fixed 3-step pre-trade check (routing → cash → positions/open orders).

Who it's for

  • Retail investors and quant beginners experimenting with China A-share strategies
  • Anyone who wants to validate order flow and exchange rules before risking real money
  • Claude Code users who prefer natural-language commands over manual CLI calls

Examples

  1. "Create account alpha with ¥500,000 and market-buy 100 shares of 600519."
  2. "Summarize alpha's positions and any open orders right now."
  3. "Backtest SMA cross on 600519 from 2025-01-01 with ¥200,000 of capital."

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/shouldnotappearcalm/a-share-skill/HEAD/a-share-paper-trading/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the a-share-paper-trading folder from the GitHub repo shouldnotappearcalm/a-share-skill into my ~/.claude/skills/a-share-paper-trading/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/shouldnotappearcalm/a-share-skill.git && mkdir -p ~/.claude/skills && cp -r a-share-skill/a-share-paper-trading ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Make sure Python 3 and git are installed (python3 --version).
  2. Clone the repo: git clone https://github.com/shouldnotappearcalm/a-share-skill.git
  3. Copy the skill folder: mkdir -p ~/.claude/skills && cp -r a-share-skill/a-share-paper-trading ~/.claude/skills/
  4. Restart Claude Code and ask something like "use the A-share paper trading skill" to confirm it loads.
  5. Start the resident service: python3 ~/.claude/skills/a-share-paper-trading/scripts/paper_trading_ctl.py start (check with status).
  6. If port 18765 is already in use, don't launch a second instance — run lsof -iTCP:18765 -sTCP:LISTEN and reuse the running service.
  7. Before your first order, confirm the starting capital (default ¥1,000,000) and create the default account.
View source on GitHub ↗License: MIT