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Research updated 4 November 2026 · Public merged PRs outside my personal namespace, verified 20 October 2026
Failure Steps Are Not Repair Intents: Measuring Actionable Ambiguity in Multi-Agent System Diagnosis
WSDM 2027 Findings · Accepted · First author: Xi Qin
Do different blamed execution steps imply different repairs? We study expert-recommended actions from MP-Bench through a prediction-blind, human-audited model-assisted analysis of 96 multi-agent traces and 1,436 actions.
In the primary analysis, 85.1% of traces contain fewer distinct repair intents than blamed steps, while top repair-set alignment reaches 95.7%. The findings show how step-level evaluation can overstate actionable diversity while often preserving the first repair priority.
Instance-Optimal Identity Testing at the Original Total-Variation Radius: Resolving Canonne's 2024 Open Question 1
Latest preprint · Distribution testing · 23 October 2026
How many samples are needed to test whether an unknown distribution equals a specified reference—at the total-variation radius actually given? I give an explicit characterization, up to universal constants, for every finite or countable reference distribution at the original radius.
The preprint resolves Canonne's COLT 2024 Open Question 1 in the countable-alphabet model, with matching upper and lower bounds and a polynomial-time factor-two approximation for explicit rational input.
Read the paper ↗ · LaTeX source ↓ · DOI: 10.5281/zenodo.23584756
Preprint · Learning theory · 3 October 2026
How much can you lose by keeping just three examples? I determine the exact worst-case risk inflation for mean regression when selecting three support points, with repetition allowed, and predicting their equally weighted mean—in every dimension.
The result resolves the n = 3 column of the data-selection question posed at COLT 2025, with sharp constants and a characterization of the extremal geometry.
Read the paper ↗ · Source & verification scripts ↓ · DOI: 10.5281/zenodo.23119254
Preprint · AI evaluation · arXiv:2608.19269 · v3
A Commit-Bound Census of Claim-Relative Inference in Inspect Evals. A framework for connecting evaluation artifacts to the claims they support. The census records 124 eligible units, 14 deterministic analyses, and 110 typed stops that identify missing evidence.
14 PRs merged since 2 October. Selected work across query engines, developer tools, scientific computing, and agent security.
| Project | Contribution | Merged |
|---|---|---|
| apache/datafusion | Serialize lazy generators through hooks · #25765 | 2026-10-19 |
| microsoft/vscode-eslint | Keep linting inside the workspace · #2227 | 2026-10-16 |
| lacs-project/sysknife | Redact credentials from tool context · #573 | 2026-10-12 |
| apache/datafusion | Skip hashing for fully ordered group keys · #25150 | 2026-10-01 |
| pydata/xarray | Bring apply_ufunc to DataTree · #11552 | 2026-09-09 |
| awslabs/stickler | Replace sklearn metrics with NumPy · #284 | 2026-08-28 |
| AndreaBozzo/dataprof | Read and profile only selected columns · #655 | 2026-09-01 |
| 3b1b/manim | Fix batched 2D vector rotation · #2501 | 2026-08-17 |
Also just merged: SysKnife #612 — detect credentials after escaped boundaries · 19 October.
Browse all 67 public merged PRs →
Pocket MOSS Image · PYTHON / PYTORCH
Low-memory MOSS-Image inference: the original 9B text encoder with packed INT6 weights and a streamed, fused INT8 DiT. No retraining or replacement encoder.
evalspec-audit · PYTHON
Reproducible audits of how evaluation choices affect scores, rankings, and the claims a benchmark supports.
FastRead · PYTHON / TS
A paper-reading workspace with page-linked evidence, reports, notes, and conversations grounded in the original PDF.
MoonCat · 月薪喵 · C / OPENVELA
An openvela wearable recovery coach: LVGL interface, scheduled reminders, and on-device INT8 intent routing.
moonguard · MOONBIT
Public API compatibility checks and semantic-versioning safeguards for MoonBit libraries.
AstroTwin · JAVASCRIPT
A browser-based astronomy research demo with TESS evidence snapshots, guided analyses, and Qwen-assisted planning.
openvela-smarthome-agent · C / OPENVELA
A smart-home agent with simulated devices, a DeepSeek tool-calling loop, and a reproducible offline mode.
| 2026 competition / 竞赛 | Award / 奖项 |
|---|---|
| CCF Open Source Innovation Competition · openvela Smart Band Track CCF 开源创新大赛 · 智能手环赛道 |
First Prize 一等奖 |
| CCF Quantum Computing Programming Challenge · Origin Quantum Cup CCF 量子计算编程挑战赛 · 本源杯 |
First Prize 一等奖 |
| National Electrical Mathematical Modeling · CSEE Cup · “Diangong Cup” 全国大学生电工数学建模竞赛 · 电工杯 |
Second Prize 二等奖 |
| CCF Open Source Innovation Competition · openvela Smart Home Track CCF 开源创新大赛 · 智能家居赛道 |
Third Prize 三等奖 |
Competition background & details / 赛事介绍 →
Works in Rust · Python · TypeScript · C · MoonBit · openvela / LVGL
Nihil ultra testimonium. — Nothing beyond the evidence.
Nullius in verba. · qinxi-ai.github.io

