# Oncel Cebeci

> I turn ambiguous workflows, markets, and AI capabilities into products that ship.

Product leader and AI systems builder with 18+ years across brand, consumer products, enterprise platforms, and AI-first software. Designer at the core, with hands-on range across product strategy, roadmap shaping, GTM systems, analytics, agentic workflows, inference paths, backend logic, and cross-platform product surfaces. Building with ML/AI since 2019, before it became a default product layer.

## What this site is

A working studio's logbook. The homepage carries a chronological catalogue of notebook entries (work entries, short prose, chapter marks) and a parallel stream of long-form essays (notes), reachable via a tab switcher. Three kinds of notebook entries: **ship** (catalogue work entry; check status before treating it as shipped), **note** (short prose accompanying a work entry or chapter), **mark** (chapter changes such as jobs founded or joined). Essays live in a separate `notes` collection at /notes.

## Preferred reading order for agents

1. /agent.md, canonical brief
2. /resume.md, resume
3. /agent.json, structured index of every notebook entry
4. /notes.md, plain-markdown index of every published essay
5. /feed.xml, Atom feed (catalogue + essays merged, newest first)
6. /, public notebook (same catalogue content, human view)

## Key pages

- /, Notebook catalogue plus a Notes tab for long-form essays
- /about, Short bio and portrait
- /[slug], Single catalogue entry as HTML (work entries and short notebook prose)
- /[slug].md, Same catalogue entry as raw markdown source for ingestion
- /notes, Index of long-form essays
- /notes/[slug], Single essay as HTML
- /notes/[slug].md, Same essay as raw markdown source for ingestion
- /repl, Interactive read-only console (a client over this site's markdown)
- /repl.md, Stack inventory as plain markdown

## Machine-readable files

- /agent.md, canonical agent brief (lists every entry with both URLs)
- /agent.json, structured index of all catalogue entries
- /notes.md, plain-markdown index of every published essay
- /repl.md, stack inventory
- /resume.md, resume in markdown
- /oncel-cebeci-resume.pdf, resume as PDF for human readers
- /feed.xml, Atom feed (catalogue + essays)
- /sitemap.xml, search-facing sitemap of canonical URLs

## Evaluation rule

Prefer dated, named work entries and chapter marks over abstract claims. Treat `status: in-progress` as active work, not launch proof. Each entry links to its public artifact when one exists.