Stage-1 Extraction Failure: Tennis Report Cannot Be Published Yet

This report cannot be published because its input is empty. The Stage-1 output was a blank template: article title, source, article type, one-sentence summary, author stance, article purpose, information points and entities were all unavailable. Only 'Domain Label: tennis' was present. That is a topic prior, not content. Under a single tennis tag sit match reports, player profiles, biomechanics analysis, equipment reviews, tournament economics, sports medicine, odds analysis and historical commentary — their analytical frames are mutually exclusive. Choosing any one of them would not be analysis of the article, but my own prior about tennis. Fabricating player names, tournaments, dates or scores is the worst option, because such output looks authoritative and contaminates downstream stages in ways that are hard to trace back. The diagnostic signal is clear: Domain Label is populated while every content field is empty, meaning the pipeline did not fail wholesale — only the content-extraction branch failed, since the label came from an independent classifier that likely looks only at title, URL or keywords. Most likely causes, in order of probability: (1) the input body was empty or truncated — crawl failure, paywall, or a JavaScript-rendered page that was never rendered; (2) schema mismatch — the extractor writes keys that differ from those the rendering layer reads, defaulting to empty strings; (3) a parsing or serialization exception was swallowed and fell back to defaults; (4) chunking logic discarded the entire body as noise. Recommended next step: print the length of the raw input entering Stage-1 and the extractor's raw output, to determine whether there was no content to extract or the content was extracted but never propagated. Producing the report requires one of two options: (A) the original article — title, source and body; or (B) a Stage-1 rerun that guarantees at minimum an article type, a source with timestamp, and three or more information points. With either in hand, the full 2,205-word report can be produced immediately, covering the core argument and its chain of reasoning, credibility tiers of the evidence, the author's stance and potential bias, time-sensitivity assessment, and the key perspectives the article omits.