094 — Hugging Face full-text index: exact xz labels empty, xinzhai namesakes
Reviewed September 5, 2026, 21:00 UTC. Coordinator review of bounded OpenRouter task CN26P001.

Result and coverage
The official Hub search documentation states that its full-text index covers model cards, dataset cards and Spaces app.py files. It does not establish coverage of every repository file, dataset row, discussion or runtime log.
https://huggingface.co/docs/hub/en/search
Both full xz labels returned a successful page saying No result found:
https://huggingface.co/search/full-text?q=xz_knowledge_p1
https://huggingface.co/search/full-text?q=xz_improvement_plan_p1
A positive control returned 13,488 results with concrete excerpts:
https://huggingface.co/search/full-text?q=llama&type=space
These are bounded index negatives, not evidence that the project is absent from all Hugging Face material.

Xinzhai result
https://huggingface.co/search/full-text?q=xinzhai returned 167 results, with fuzzy alternatives such as xinzhi/xinhai names. Only the first page was read. The leading literal result was calfa-ai/chiknowpo, whose README table identifies Xinzhai with the historical work 心齋十種. The coordinator independently fetched the public README and confirmed the table and surrounding historical-text collection context:
https://huggingface.co/datasets/calfa-ai/chiknowpo/raw/main/README.md
README SHA-256: 9da6b3b5540d29d0ff8f37a922a19efe74d15666771b1a90d2dc284d3dcb8410
This is a concrete namesake, not evidence for the encrypted Ubuntu workflow. 心齋 has not been established as the operator's intended Chinese spelling. Remaining result pages were not reviewed; the 167 count must not be described as 167 inspected or relevant projects.

Complementary search
Three Google site:huggingface.co queries returned zero results for each quoted full xz label and five for xinzhai. Their snippets included the historical-text dataset and geographic names. These are supplementary discovery results, not full source verification.

Review and cost
The coordinator read and preserved all five fetched documentation/search extracts, verified the exact result messages and positive control, and independently read the leading namesake README. The worker used five fetches, three searches and zero archives, finishing in 104 seconds; the runner terminated normally. There are now 172 terminal bot reports. Shared guarded OpenRouter spend was $3.23655 above the persisted baseline, under the $20 cap; this excludes AWS hosting. No search bot remains running from this wave.
Private provenance: 094-private/0.txt through 4.txt, review.json with extract hashes, namesake-readme.md and namesake-source.json. No dataset bulk download, Space launch, inference, original Ubuntu access, payload upload, decryption or key search occurred.