Alphalens factor analysis

Skill tangweigang-jpg/doramagic-skills/skills/alphalens-factor-analysis

分析alpha因子的预测能力与前向收益特征，生成分组收益、IC、换手率等报告，辅助量化策略的因子研究与事件分析。。From its SKILL.md

Install

npx -y skills add tangweigang-jpg/doramagic-skills --skill alphalens-factor-analysis

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What its file declares

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SKILL.md

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Alphalens 因子分析 (alphalens-factor-analysis)

分析alpha因子的预测能力与前向收益特征，生成分组收益、IC、换手率等报告，辅助量化策略的因子研究与事件分析。

Pipeline

data_collection -> data_storage -> factor_computation -> target_selection -> trading_execution -> visualization

Top Use Cases (6 total)

Documentation Deployment (`UC-101`)

Automated build and deployment of project documentation to ensure consistent and reproducible documentation releases Triggers: docs, deploy, build

Sphinx Documentation Configuration (`UC-102`)

Configures the Sphinx documentation system with extensions for Python API documentation, Jupyter notebooks, and mathematical expressions Triggers: sphinx, config, documentation

PyFolio Portfolio Integration (`UC-106`)

Combines Alphalens factor analysis with PyFolio portfolio analytics to evaluate factor-derived portfolio performance, risk metrics, and tearsheet gene Triggers: pyfolio, integration, portfolio

For all 6 use cases, see references/USE_CASES.md.

Execute trigger: When user intent matches intent_router.uc_entries[].positive_terms AND user uses action verb (run/execute/跑/执行/backtest/fetch/collect)

What I'll Ask You

Target market: A-share (default), HK, or crypto? (US stocks in ZVT are half-baked — stockus_nasdaq_AAPL exists but coverage is thin)
Data source / provider: eastmoney (free, no account), joinquant (account+paid), baostock (free, good history), akshare, or qmt (broker)?
Strategy type: MACD golden-cross, MA crossover, volume breakout, fundamental screen, or custom factor?
Time range: start_timestamp and end_timestamp for backtest period
Target entity IDs: specific stocks (stock_sh_600000) or index components (SZ1000)?

Semantic Locks (Fatal)

ID	Rule	On Violation
`SL-01`	Execute sell orders before buy orders in every trading cycle	halt
`SL-02`	Trading signals MUST use next-bar execution (no look-ahead)	halt
`SL-03`	Entity IDs MUST follow format entity_type_exchange_code	halt
`SL-04`	DataFrame index MUST be MultiIndex (entity_id, timestamp)	halt
`SL-05`	TradingSignal MUST have EXACTLY ONE of: position_pct, order_money, order_amount	halt
`SL-06`	filter_result column semantics: True=BUY, False=SELL, None/NaN=NO ACTION	halt
`SL-07`	Transformer MUST run BEFORE Accumulator in factor pipeline	halt
`SL-08`	MACD parameters locked: fast=12, slow=26, signal=9	halt

Full lock definitions: references/LOCKS.md

Top Anti-Patterns (25 total)

AP-ZVT-183: 除权因子为 inf/NaN 时直接参与乘法导致复权静默失败
AP-ZVT-179: 第三方数据接口超限后异常被吞噬，数据静默缺失
AP-ZVT-183B: HFQ（后复权）与 QFQ（前复权）K 线表使用错误导致因子计算漂移

All 25 anti-patterns: references/ANTI_PATTERNS.md

Evidence Quality Notice

[QUALITY NOTICE] This crystal was compiled from blueprint finance-bp-120. Evidence verify ratio = 55.2% and audit fail total = 22. Generated results may have uncaptured requirement gaps. Verify critical decisions against source files (LATEST.yaml / LATEST.jsonl).

Reference Files

File	Contents	When to Load
references/seed.yaml	V6+ 全量权威 (source-of-truth)	有行为/决策争议时必读
references/ANTI_PATTERNS.md	25 条跨项目反模式	开始实现前
references/WISDOM.md	跨项目精华借鉴	架构决策时
references/CONSTRAINTS.md	domain + fatal 约束	规则冲突时
references/USE_CASES.md	全量 KUC-* 业务场景	需要完整示例时
references/LOCKS.md	SL-* + preconditions + hints	生成回测/交易代码前
references/COMPONENTS.md	AST 组件地图（按 module 拆分）	查 API 时

Compiled by Doramagic crystal-compilation-v6.1 from finance-bp-120 blueprint at 2026-04-22T13:00:58.879278+00:00. See human_summary.md for non-technical overview.