# Collection Run: 2026-07-27 arXiv Incremental Refresh

status: completed

## Scope

- source: arXiv official search pages
- date window: 2026-07-09 to 2026-07-27
- query groups: 15
- unique candidates seen: 249
- high-relevance candidates selected: 157
- already-existing selected papers: 6
- new paper files written: 151
- reserve candidates: 92

No submissions later than 2026-07-24 appeared in the result set. July 25-26 were a weekend; the run
still keeps 2026-07-27 as its explicit upper boundary.

## Outputs

- `data/arxiv-agent-candidates-2026-07-09-to-2026-07-27.json`
- `data/arxiv-agent-papers-2026-07-09-to-2026-07-27.json`
- `papers/corpus-summary-2026-07-27.md`
- 151 generated `papers/items/*.md` files

## Selection

The same high-recall rule as the previous expansion was retained:

```text
collection_score >= 13
relevance == high
```

All selected files remain `queued`. Selection means relevant enough to retain, not read or validated.

## Selected Auto-Tag Counts

| Topic | Count |
| --- | ---: |
| agent-evaluation | 137 |
| tool-use | 119 |
| rag | 73 |
| planning | 60 |
| reasoning | 56 |
| workflow-agent | 49 |
| agent-safety | 49 |
| computer-use | 48 |
| coding-agent | 46 |
| memory | 42 |
| multi-agent | 36 |

Tags overlap and are recall-oriented.

## Collection Reliability Finding

The first two attempts failed because `export.arxiv.org` timed out and then returned HTTP 503. The
collector previously retried only HTTP 429 and `URLError`.

The collection tool was improved to:

- retry 429 and transient 5xx responses;
- retry read timeout and HTTP connection failures;
- expose a configurable request timeout;
- print query/page progress;
- support the official `arxiv.org/search/` HTML result pages as a fallback backend.

The successful run used `--backend search-html`. The parser extracts the arXiv ID, title, full displayed
abstract, authors, categories and submitted date before applying the existing classifier. Candidate and
selected manifests intentionally omit abstracts, preserving the existing repository contract.

A post-run review removed an unsafe early-stop assumption: arXiv announced-date ordering can mix old
cross-listed papers into a recent page, so original submission date cannot terminate pagination. A full
rerun with the corrected collector returned the same 249 unique candidates and 157 selected records.

## Evaluation-Relevant Signals

Abstract-level signals in the refresh include:

- evaluation protocols and dynamic environments, not only static success rates;
- trajectory review, failure attribution and recovery tooling;
- deterministic verification and evidence grounding;
- cost-aware evaluation and deployment realism;
- explicit separation of gains from tasks regressed by a new Agent component.

These are triage signals. Full-text evidence review is still required before turning them into field
conclusions.
