AI glossary builder

Generate a glossary from any document. Every term cited.

Dense documents bury their jargon. Sidenote reads the whole thing and defines its acronyms, terms and proper nouns in plain English, each citing the passage it came from. Click an entry to jump to where the term first appears.

Aurora Rollout Runbook

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While the canary runs, Aurora watches three numbers. If any one of them crosses its limit, the new build is not promoted to the rest of the fleet.

  • Speed: p95 checkout latency (the time that 95 in every 100 checkouts finish within) must stay at or below 450 milliseconds.
  • Errors: the error rate must stay at or below 0.5 percent.
  • Crashes: at least 99.8 percent of sessions must end without a crash.

Aurora checks all three every five minutes, on the Helios dashboard.

Source passage

Three metrics gate the canary automatically. Promotion is blocked if p95 checkout latency rises above 450 milliseconds, if the error rate exceeds 0.5 percent, or if crash-free sessions drop below 99.8 percent. The gates are evaluated every five minutes on the Helios dashboard.

6 terms

Jargon (3)

  • release captain

    The rotating engineer who owns a production rollout end to end: signs off on releases, checks the error budget, and is the only person who can lift a post-rollback freeze.

  • error budget

    The amount of unreliability a service is allowed each month before releases stop. Burning more than a quarter of it defers the next rollout.

  • canary cohort

    The slice of production users routed to a new build during the canary stage. Selected by session hash so each user sees a consistent build for the whole window.

Acronyms (2)

  • SLO

    Service Level Objective. A reliability target the team commits to, such as 99.9 percent availability measured at the load balancer.

  • MTTR

    Mean Time To Recovery. How long it takes to restore service after an incident; the checkout group targets 30 minutes.

Proper nouns (1)

  • Helios

    The observability dashboard where the canary gates are evaluated and rollout metrics live.

The arrow jumps to where each term appears in the document.

Notes is in the full product

Save any cited passage from a chip and it lands here, ready to revisit.

The problem

The jargon is the part that slows you down.

Every field has its own shorthand. A research paper drops a dozen acronyms before page two; a runbook assumes you know the service names; an onboarding doc is half abbreviations. You can read the words and still not follow the argument, because the vocabulary was never explained.

A glossary fixes that, but building one by hand means re-reading the whole document and hunting for first mentions. Sidenote does that pass for you, and ties each definition back to the line it came from so you can check it in a click.

How it works

How Sidenote builds the glossary.

01

It reads the whole document.

On the Glossary tab you click Build, and Sidenote passes over the full text (not a sample), pulling out the acronyms, domain jargon and proper nouns that a reader would actually need defined.

02

It defines each term in plain English.

Definitions come from the document first, using its own first-mention expansions where they exist, and fall back to a short general-knowledge definition for widely-known terms the text leaves unexplained.

03

Every entry cites its source.

Each term is anchored to the passage it was found in. Click an entry and Sidenote scrolls the live document to where the term first appears and highlights it, so you verify the definition in context.

What it extracts

Acronyms, jargon and proper nouns.

Sidenote sorts each term by kind, so a glossary reads the way you'd expect: the abbreviation tells you its expansion, the entity tells you who or what it is. Common words and bare numbers are left out unless the document gives them a specific meaning.

Acronyms

The abbreviation plus its expansion: “GLP-1” becomes “Glucagon-like peptide-1”, pulled from the document's first mention.

Domain jargon

The field-specific vocabulary that carries the argument, defined in one sentence and grounded in how the document uses it.

Proper nouns

The people, products, places and named entities the document references, so you know who and what it's talking about.

Across many documents

One glossary across a whole Collection.

A single document's glossary is useful; a shared vocabulary across a project is better. Bundle your papers, wiki pages or specs into a collection and Sidenote merges a single, deduplicated glossary across all of them, each entry still naming the document it came from, so the citationtrail never breaks. It reuses any per-document glossary you've already built, so only the new documents do fresh work.

Merged and deduplicated

A term that appears in three papers shows once, not as three near-identical entries cluttering the list.

Each entry names its document

Every definition tells you which document it came from, so you can trace it back across the whole collection.

Reuses prior work

Per-document glossaries you've already built are reused from cache; only new members trigger a fresh build.

And when a glossary is worth passing on, send it as a share link: snapshot-frozen, revocable, and readable without a Sidenote account.

Everywhere you read

A glossary from every kind of document.

The same builder works wherever Sidenote reads: browser PDFs and articles, your wikis, your docs, and files you upload. Pick a source:

FAQ

Common questions about the glossary builder.

Open Sidenote on any document you're reading (a PDF, a wiki page, a paper, a Google Doc) and switch to the Glossary tab. Click Build and Sidenote reads the full text, extracts the acronyms, jargon and proper nouns, and writes a one-sentence definition for each. There's nothing to upload and nothing to paste: it works on the document where it already lives.
Yes. Every glossary entry carries the passage it was found in. Click the entry and Sidenote scrolls the live document to the first place the term appears and highlights it, the same scroll-to-source behavior as a chat citation. A definition you can't trace back to the text isn't much use, so each one is anchored to its source.
The document first. Sidenote uses any first-mention expansion the text gives you (“Upper motor neurons (UMNs)” becomes “UMN” defined) and prefers phrasing grounded in the passage. For widely-known terms the document uses without re-defining, like RNA, OAuth or NASA, it falls back to a short general-knowledge definition so the term is still explained. It only omits a term when it's both opaque in the document and not something it can define confidently.
Yes: that's a collection glossary. Bundle a set of related documents into a collection and Sidenote merges a single, deduplicated glossary across all of them, with each entry still naming the document it came from. It reuses any per-document glossary already built, so it only does fresh work on the documents that need it.
Three kinds: acronyms (with their expansion), domain jargon, and proper nouns such as people, products, places and named entities. Common words like “data” or “system” are skipped unless the document gives them a specific meaning, and stop-words, dates and bare numbers are never defined.
Everything Sidenote reads: browser PDFs and web articles, Confluence, Notion, Google Docs, SharePoint and OneDrive, and files you upload (PDF, DOCX, PPTX, TXT, MD, MDX, RTF). Scanned PDFs are OCR'd first, so even an image-only document can be turned into a glossary.
Try it on your next dense doc

Decode the jargon. In one click.

Add Sidenote to your browser, open a document, and hit Build on the Glossary tab. Watch it pull out every term, each one cited to the line it came from.

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