219 — DeepSeek-labelled training traces: 4,006 files, three structured sessions reviewed
Reviewed September 6, 2026 UTC. Public dataset inspection; no trace commands executed.

RESULT
TeichAI/DeepSeek-v4-Pro-Agent contains actual structured session records rather than score-only summaries. Three sampled files contain 59 tool calls and 59 results with matching call IDs, showing local code/file work. No peer-agent call or outward publication appears among those sampled calls. Backend identity is publisher-labelled; Chinese operator or laboratory attribution is not established. This is a useful comparison corpus, not a confirmed escaped swarm.

PROVENANCE AND SCOPE
https://huggingface.co/datasets/TeichAI/DeepSeek-v4-Pro-Agent
Pinned dataset revision abbf7b71b145633b60beb21ddc0d158582fd80dd, ungated at capture. Metadata enumerates 4,006 JSONL files. Filename date prefixes: 424 on May 7, 3,569 on May 8, 13 on May 9. These are labels, not independently verified execution dates or a measure of simultaneous workers.
The card says the sessions were generated using Teich and attributes assistant responses to deepseek/deepseek-v4-pro. It presents the collection for training/distillation. No independent API receipt or model attestation was recovered. A Chinese model name does not identify the dataset publisher as a Chinese operator.

THREE SAMPLES
Selection: first, middle (index 2003) and last JSONL paths in the metadata list. This is a deterministic coverage sample, not a random or representative estimate.
- 2026-05-07T18-19-29-863Z_019e03aa-8ec4-768e-9833-edc257e9203a.jsonl: 197,369 bytes, 64 events. 31 calls/results: 18 write, 6 bash, 5 read, 2 edit. Local Swift/HEVC project construction and inspection.
- 2026-05-08T10-37-03-110Z_019e0729-8905-763c-9f52-11ab570cd76a.jsonl: 87,944 bytes, 16 events. 5 calls/results: 3 write, 2 bash. Local HTML/CSS/JavaScript file creation and listing.
- 2026-05-09T05-48-18-191Z_019e0b47-898d-712c-a1ee-73b06afc5386.jsonl: 296,161 bytes, 52 events. 23 calls/results: 20 write, 3 bash. Local HealthConnect.Auth project structure and files.
All 59 result toolCallIds match sampled call IDs. This corroborates internal serialization consistency, not independently authenticated execution. No tests were rerun and no generated program was executed here. Source code written inside a trace may contain URLs or network functions; writing that text is not evidence of invoking those operations.

SESSION STRUCTURE
Each inspected file has one session header, one model_change event with the same DeepSeek label, one thinking-level event, developer/user messages and assistant/tool-result events. Calls use pi-style toolCall blocks and toolResult messages. Parent message IDs serialize conversation history; they do not imply a separate collaborating child agent. The inspected shell commands list/create local files and directories, inspect imports and count lines. No subagent delegation, peer mailbox or public post receipt appears in these calls.
The local .teich-prompt.txt and .pi entries in tool output are consistent with the stated generation harness. They are not distinctive evidence tying this dataset to XZ or other public paste activity.

GENERATION CONTEXT
https://github.com/TeichAI/teich
The linked publisher project documents generating traces from prompt collections with Docker and a configured API provider, then emitting raw sessions, training rows and snapshots. It also supports extracting preexisting local sessions. These capabilities explain how thousands of files can be produced without a collaborating swarm. The dataset card states generation; this pass did not pin/review the historical generator or validate which configuration produced these particular sessions.

NEXT
A bounded broader sample should inventory shell-network calls and delegation tools before committing to all 4,006 files. Seek exact outbound commands paired with responses, distinguish source-text URLs from executed commands, and check whether any public artifacts survive. Keep model/operator attribution separate. The other 4,003 files were not reviewed this pass and remain unclassified.

CAPTURES
219-private/: full metadata listing, pinned card, three session files, sample-summary.json and SHA256SUMS. Public report exposes reviewed metadata only; raw prompts, generated source and reasoning are not mirrored to the research website. No private local agent stores, credentials or investigated commands were accessed/executed.