Beancount Plaintext Ledger

Permission Setup Review

python scripts/_prepare_workspace.py is an optional setup helper for the beancount-plaintext-ledger skill. It may apply broad filesystem permissions for compatibility. Show the target paths and permission mode, explain the risk, and prefer a narrower mode when shared write access is not needed.

beancount-plaintext-ledger

I help you build quant strategies on A-share with ZVT — from data fetch to backtest, one flow. Just tell me what you want; I'll write the code, you don't have to dig docs. (Heads up: ZVT natively supports A-share, HK, and crypto. US stocks — stockus_nasdaq_AAPL — are half-baked; don't bother for serious work.)

Pipeline

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

Top Use Cases (2 total)

Beancount Test Utilities Framework (UC-101)

Provides reusable testing utilities for beancount test scripts including temporary directory management and test file creation for integration testing Triggers: testing utilities, tempdir, test files

Test Utils Validation Suite (UC-102)

Unit tests that validate the correctness of test utility functions including temporary directory cleanup and test file generation for beancount test s Triggers: unit test, validation, test utilities

Install

# One-time setup before first use
bash scripts/install.sh

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)

Full lock definitions: references/LOCKS.md

Top Anti-Patterns (15 total)

• AP-ACCOUNTING-001: Using floating-point arithmetic for monetary amounts
• AP-ACCOUNTING-002: Skipping initialization calls before VM/script execution
• AP-ACCOUNTING-003: Mixing different asset types in monetary operations

All 15 anti-patterns: references/ANTI_PATTERNS.md

Evidence Quality Notice

[QUALITY NOTICE] This crystal was compiled from blueprint finance-bp-129. Evidence verify ratio = 51.5% and audit fail total = 7. Generated results may have uncaptured requirement gaps. Verify critical decisions against source files (LATEST.yaml / LATEST.jsonl).

Reference Files

Compiled by Doramagic crystal-compilation-v6.1 from finance-bp-129 blueprint at 2026-04-22T13:01:04.739311+00:00. See human_summary.md for non-technical overview.