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engineering

Guide

Ethical walls in Recall: enforcement at index time and query time

Byadmin 2026年8月27日

A wall enforced only at query time leaks through counts, snippets and ranking. Recall enforces twice, and this guide explains why, what each layer does and what administrators should check.

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Guide

Two-way DMS sync without copying what we don’t need

Byadmin 2026年8月6日

A document management system is the firm’s record. Our sync treats it that way: metadata first, content on demand, write-back as a new version, permissions never ours to decide.

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Guide

Zero retention: what it means in our architecture, line by line

Byadmin 2025年11月20日

The phrase is used loosely across the industry. Here is what it means in ZAAN’s request path, what persists and why, what it does not mean, and the questions to ask any vendor.

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Perspective

Why we bet on a small model for contracts

Byadmin 2025年10月30日

Latency, residency, reproducibility and the sealed laptop: the four constraints that made a 7-billion-parameter model the right size for clause-level work, and what we gave up.

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Perspective

A 500-millisecond budget: why review latency is a product decision

Byadmin 2025年8月26日

Inline review either keeps pace with drafting or it interrupts it. We set a hard budget of half a second at the 95th percentile, and most of our architecture follows from it.

Read More A 500-millisecond budget: why review latency is a product decisionContinue

Release

Review 3.8: the Word add-in rebuilt on the native comments API

Byadmin 2025年4月17日

Review 3.8 replaces our custom annotation layer in Word with the native comments and tracked-changes APIs. Flags are now real Word comments; redlines are real tracked changes. What that fixes, and what it costs.

Read More Review 3.8: the Word add-in rebuilt on the native comments APIContinue

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