TenLens
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Field notes from the directory desk.

Product releases, research from our reliability and data teams, and the occasional long-form essay from people who've spent a decade in Active Directory.

Multi-tenant search, end to end: one ⌘K bar for every directory you run.
Featured
May 27, 2026 · Product

Multi-tenant search, end to end: one ⌘K bar for every directory you run.

How TenLens indexes users, groups, and policies across tenants so IT can search once and act in context.

EEngineering· 6 readEngineering · 6 read
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Bugbot for IT: guardrails before you ship a Conditional Access change.
Mar 19, 2026 · Product

Bugbot for IT: guardrails before you ship a Conditional Access change.

EEngineering· 7 readEngineering · 7 read
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Audit log search at 10k events per second: what we learned indexing Entra at scale.
Jan 22, 2026 · Research

Audit log search at 10k events per second: what we learned indexing Entra at scale.

S&Stefan & Jediah· 11 readStefan & Jediah · 11 read
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May 27, 2026 · ProductMulti-tenant search, end to end: one ⌘K bar for every directory you run.Engineering6 minEngineering · 6 minMar 19, 2026 · ProductBugbot for IT: guardrails before you ship a Conditional Access change.Engineering7 minEngineering · 7 minJan 22, 2026 · ResearchAudit log search at 10k events per second: what we learned indexing Entra at scale.Stefan & Jediah11 minStefan & Jediah · 11 minNov 18, 2025 · IdeasWhy we built TenLens: the case for an identity instrument.Mira Halonen6 minMira Halonen · 6 min