longbridge-market-microstructure

Combines orderbook depth, tick-by-tick trades, and capital-flow data to assess bid-ask spread, order-flow imbalance, liquidity depth, and short-term institutional pressure for a single symbol.

Response language: match the user's input language — Simplified Chinese / Traditional Chinese / English.

When to use

• "TSLA 盘口分析", "NVDA order flow", "700.HK 买卖盘深度" → full microstructure report
• "挂单墙在哪里", "order book imbalance" → depth-only analysis (depth)
• "大单主力方向", "institutional order flow" → trades + capital combined
• "集合竞价分析" (A-share pre-open auction) → depth + trades during auction session
• "港股大宗交易" (HK block trades) → trades with type filter + brokers queue

Do not use this skill for historical (multi-day) flow analysis — route to longbridge-capital-flow or longbridge-kline.

Workflow

1. Resolve the user's symbol to <CODE>.<MARKET> (e.g. NVDA.US, 700.HK, 600519.SH).
2. Run longbridge --help to see available subcommands; run longbridge <subcommand> --help to confirm current flags for each.
3. Fetch orderbook depth using the depth subcommand with --format json.
4. Fetch recent tick trades using the trades subcommand with --format json (check --help for count/range flags).
5. Fetch capital-flow distribution (large / medium / small orders) with longbridge capital <SYMBOL> --format json.
6. For HK symbols only, also fetch longbridge brokers <SYMBOL> --format json to identify large broker queues (potential institutional blocks).
7. Compute or estimate:
   • Weighted bid-ask spread = (best_ask − best_bid) / mid_price
   • Depth asymmetry = (total_bid_volume − total_ask_volume) / (total_bid_volume + total_ask_volume) across all levels
   • Buy-initiated ratio = buy-side active trades / total trades (from tick data)
   • Large-order net pressure = large_buy_amount − large_sell_amount (from capital snapshot)
   • Order-wall levels = price levels with volume ≥ 3× average level volume (potential support/resistance)
8. Output a structured microstructure report (see Output section).

CLI

# Discover available subcommands and their flags first
longbridge --help
longbridge <subcommand> --help   # run for each subcommand before use

# Orderbook depth (5/10-level bid/ask)
longbridge <depth-subcommand> NVDA.US --format json

# Recent tick trades (check --help for count/range flags)
longbridge <trades-subcommand> NVDA.US --format json

# Capital flow (large/medium/small order distribution)
longbridge <capital-subcommand> NVDA.US --format json

# Broker queue — HK symbols only
longbridge <brokers-subcommand> 700.HK --format json

Output

Render a structured report with these sections:

Key field translations (LLM maps JSON keys → user language):

Off-hours caveat: outside regular trading hours, depth is a closing snapshot and trades are from the prior session — state this explicitly.

A-share call-auction note: during 09:15–09:25 CST (pre-open), depth reflects indicative auction prices, not continuous quotes. Mention this when the user's query occurs in that window.

HK block trades: trades with type = block or large-volume single prints may indicate off-exchange block deals — highlight these separately.

Error handling

MCP fallback

When the CLI is unavailable, fall back to the MCP server. Discover available tools from the MCP server's tool list at runtime — do not rely on hardcoded tool names.

Related skills

File layout

longbridge-market-microstructure/
└── SKILL.md          # prompt-only, no scripts/