---
title: "Engineering Reliable Commit Gates for Agentic AI: Cost-Aware Verification Portfolios under Common-Mode Data Failures"
authors:
  - "Zihao Zheng"
  - "Baichuan Li"
  - "Junyi Yao"
  - "Jiayu Long"
year: 2026
venue: "arXiv"
arxiv: "2609.10969"
doi: null
source: "https://arxiv.org/abs/2609.10969"
topics:
  - "harness-engineering"
  - "agent-failure-localization"
  - "agentic-llm-serving"
seed_rank: 1803
seed_batch: "frontier-2026-09-12"
reviewed: "2026-09-12"
pool: "agents"
relevance_score: 9
lineage: commit-gate-runtime-assurance
cites:
  - title: "Engineering Reliable Commit Gates for Agentic AI: Cost-Aware Verification Portfolios under Common-Mode Data Failures"
    url: "https://arxiv.org/abs/2609.10969"
    year: 2026
    arxiv: "2609.10969"
    doi: null
see:
  - "1581-speculative-macro-commit-for-faster-tool-using-agents"
  - "1767-authority-is-not-a-string-a-capability-scoped-harness-for-prompt"
  - "1018-correct-is-not-governed-provenance-integrity-in-agentic-workflows"
  - "1050-deepseek-harness-everything-is-a-plugin"
---

# Engineering Reliable Commit Gates for Agentic AI: Cost-Aware Verification Portfolios under Common-Mode Data Failures

## One-sentence takeaway

VP-CONTROL designs cost-aware commit gates for agentic actions and shows verifier-model diversity ≠ evidence-source diversity when common-mode data faults make extra verifiers agree on the wrong approve.

## Why it matters here

Speculative macro-commit (1581) and CapScope (1767) both care when an agent may change state. Commit gates are the harness hinge for GRID COMMAND orders and Anoptic tool buses — and VP-CONTROL’s common-mode lesson blocks the false comfort of “just add another verifier.”

## Key ideas

- Agentic systems commit state-changing actions; stacked verifiers can share upstream faults.
- VP-CONTROL: runtime-assurance design plus deterministic benchmark for cost-aware commit gates (48 templates → 2,880 scenarios, six fault regimes).
- 2×2 experiment separates verifier-model diversity from evidence-source diversity.
- Empirically: cross-model votes over shared evidence still approve a large fraction of unsafe proposals — diversity of models ≠ diversity of evidence.
- Cost-aware verification portfolios under explicit common-mode failure regimes.

## Caveats

Benchmark is synthetic/frozen-proposal; live coding agents may differ. Portfolio policies need calibration to action blast radius. Do not remint 1581 / 1767 / 1018.

## Links

- arXiv: [2609.10969](https://arxiv.org/abs/2609.10969)
- PDF: https://arxiv.org/pdf/2609.10969