I'm reviewing the evidence on alternate wetting and drying in rice. The question, the rules and the format of the evidence table are in CLAUDE.md, and the source files are in sources/ (PDFs, Word, Excel, PowerPoint and CSV files; MANIFEST.csv lists them). Please do the review with the agents in .claude/agents:

1. Split the files into batches and run several reader agents in parallel, one batch each, so that every file gets read.
2. Combine their rows into evidence.csv and number them.
3. Have the checker verify every row against its source page, sheet or slide (you can run several checkers in parallel on different files). Put the checked rows in evidence.csv and the checker's log in checks.md.
4. Then have the writer draft summary.md from the checked rows only.

Don't change anything in sources/. When you're done, tell me how many rows were extracted, how many the checker confirmed, corrected and rejected, and anything that couldn't be read.
