This is a dated structural snapshot of the personal brain described in The Last Project You Build Alone and Two Brains, One Operator. Folder contents are genericized; page counts are real, enumerated over MCP on 30 September 2026. The company half has its own structure reference.
Vital stats
Counted by listing every slug in the source, not estimated.
One engine indexes the vault; 1,969 chunks are embedded, 968 tags are in use. The enumeration returned 953 unique slugs while the engine reported 954 pages - a one-row listing discrepancy I recorded rather than smoothed over. Alias stubs are excluded from every “real page” figure; what they are is worth its own section below.
The tree
Numbered roots, PARA-style. Counts are pages, including index pages.
personal-brain/ 954 pages │ ├── 00-home 1 Life OS dashboard + map table ├── agents 1 agent operating rules (root meta page) ├── start-here 1 historical onboarding pointer │ ├── 00-dashboard/ 3 generated dashboards │ ├── active-tasks │ ├── entity-activity │ └── collaboration │ ├── 01-inbox/ 7 capture lane (canonical) │ ├── inbox ← the append-here Inbox page │ └── 6 dated notes/handoffs │ ├── 02-daily/ 36 daily summaries (one per active day) │ ├── 10-domains/ 18 life areas — ongoing responsibilities │ ├── career/ 2 (profile + one application) │ ├── family/ 2 (domain page + one project) │ ├── finance/ 3 (domain page + budget project + accounting index) │ ├── health/ 1 │ ├── home/ 4 (a search project + a property subfolder/ 3: quotes & purchases) │ ├── learning/ 1 │ ├── travel/ 3 (domain page + 2 trip plans) │ └── work/ 2 (domain page + calendar management) │ ├── 20-projects/ 326 time-boxed engagements — the biggest root │ ├── active/ 147 ⚠ legacy root — dissolved in a restructure; 145 alias stubs │ │ + 2 stray concept pages │ ├── clients/ 95 │ │ ├── client-a/ 28 (index + engagement notes & sub-projects) │ │ ├── client-b/ 58 (4 top-level + an RFP/ 8 + an engagement/ 46) │ │ ├── client-c/ 7 (several product/build projects) │ │ └── client-d/ 2 (two integration projects) │ ├── completed/ 4 (archived engagements) │ ├── company-product/ 69 pointer stubs → company brain │ ├── infra/ 6 (host setup, adoption & upgrade plans, │ │ local-ai harness, one migration, one integration) │ ├── personal/ 2 (two personal projects) │ └── 3 flat aliases (legacy slugs) │ ├── 30-knowledge/ 147 reference entities, filed by kind │ ├── agents/ 14 (harness registry, architecture notes, agent profiles, │ │ model registry, one RCA) │ ├── companies/ 20 (index + 19 company cards) │ ├── concepts/ 26 (index + 25; incl. 9 alias stubs) │ ├── devices/ 2 (device registry + machine notes) │ ├── investments/ 7 (portfolio index, tracker, watchlist, log, 3 method notes) │ ├── meetings/ 11 (transcribed meetings) │ ├── people/ 16 (index + 15 person profiles + voice/writing references) │ │ + 1 flat alias │ ├── places/ 3 (place records) │ ├── products/ 16 company product cards — stubs → company brain │ ├── research/ 3 (research writeups) │ ├── runbooks/ 4 (operational runbooks + 1 alias) │ ├── sources/ 13 (index + article/tool source notes + an accounting subfolder/ 5) │ ├── readme 1 knowledge-base overview │ ├── support-workflow/ 1 alias │ └── 9 flat alias stubs (pages moved into kind folders) │ ├── 40-outputs/ 70 generated artefacts and reports │ ├── poc/ 1 │ ├── reports/ 68 │ │ ├── agent-operations/ 46 archived dailies (series ended; one log is the │ │ │ entry point) │ │ ├── accounting/ 8 (monthly reconciliations, template, readme, one tracker) │ │ ├── storage-optimization/ 3 │ │ ├── watchdogs/ 8 (a one-week run of daily reports) │ │ └── 2 loose + 1 alias │ └── slides/ 1 (one slide deck) │ ├── 50-portfolio/ 58 what I made, said, wrote, taught │ ├── index 1 (mirrors this website 1:1) │ ├── community/ 6 (index + collective/ambassador/event pages) │ ├── essays/ 8 (index + 7 essays) │ ├── events/ 1 (event calendar index) │ ├── originals/ 15 (index + 14 dated pieces) │ ├── products/ 13 (index + 12 product/repo pages) │ ├── social/ 1 (one social draft) │ ├── talks/ 7 (index + 6 talks) │ ├── trainings/ 4 (index + 3 trainings) │ └── writing/ 2 (index + earlier writing) │ ├── 90-system/ 37 policies, skills, templates, indexes │ ├── brain-structure 1 ← the state-of-the-brain policy page │ ├── agent-skills/ 11 (core skill + routing policy + 7 overrides: │ │ layout, ops, routing, vault, recall, remember, filing) │ ├── indexes/ 2 (activity log, master index) │ ├── policies/ 9 (sync, tag taxonomy, mcp ×3, harness ×3, one more) │ ├── prompts/ 1 (one worker-subagent prompt) │ ├── skills/ 1 (host/client reference) │ ├── templates/ 7 (concept, daily-note, project, inbox-item, │ │ person, git-backed-project, weekly-review) │ └── 5 dated ops/task pages + recent-ops │ └── dissolved flat roots — alias stubs + capture residue ~249 ├── inbox/ 215 ⚠ server-capture residue: 211 dated hash-slugged notes │ + 3 aliases + 1 note. Cleanup undecided (backlog) ├── originals/ 14 aliases → 50-portfolio/originals/ ├── ideas/ 6 aliases ├── concepts/ 3 aliases → 30-knowledge/concepts/ ├── people/ 3 (2 aliases + 1 live entity card, kept by design) ├── research/ 3 aliases → 30-knowledge/research/ ├── meetings/ 1 alias ├── notes/ 1 alias ├── projects/ 1 ⚠ live page — a missed-restructure stray on a dissolved root └── test/ 1 diagnostic leftover
What each root is for
Dashboards, one append-here Inbox, dated daily summaries. Human writes; the agent files.
Ongoing responsibilities with no end date: work, family, home, health, finance, learning, travel, career.
Time-boxed work under clients/<client>, personal/, infra/, completed/. “Active” is a frontmatter status, never a folder.
Entities filed by kind: people, companies, concepts, places, devices, agents, investments, meetings, research, runbooks, sources.
Generated reports and slides. The archived agent-ops dailies stay in place; that series is retired.
Mirrors this website 1:1 — one site entry corresponds to one canonical brain page.
Policies, agent skills and their overrides, templates, indexes, and the state-of-the-brain page agents read before filing anything.
Loose roots like people/, concepts/, originals/, inbox/ were folded into the numbered roots in a restructure. They survive as redirects and capture residue.
Every page goes by primary subject, not by format or by where it came from. A PDF is not “sources material”; an email is not “inbox material”. Unsure → dated page in 01-inbox/, never a new top-level root.
How to read it without misreading it
Alias stubs are a feature. Every move in the restructure left a
type: alias page at the old slug so existing wikilinks and page reads
still resolve. 290 of 954 pages are stubs; indexes exclude them with
type != "alias". It was a deliberate decision to keep them:
nothing was deleted, and the graph stayed whole through a 139-page move.
Company knowledge is stubbed, not stored. The company-product pointer pages are references, not copies. Canonical company product, engineering, and support knowledge lives in the separate company brain. Two brains, no fallback, no dual-write - the boundary argued in Two Brains, One Operator.
Two residues are open, and the tree says so. A batch of dated hash-slugged notes from a server-side capture tool (since banned client-side), and one live page stranded on a dissolved root. Both are tracked in the brain’s own tuning backlog. Publishing the imperfections is the point: a structure page that hides its residue is marketing, not a snapshot.
Remote-only by policy. The vault lives on an external volume on a dedicated host, git-backed, and is reached through MCP only. Client devices do not run a local store, and every write is confirmed by a write-through receipt under that volume path plus a full read-back.
Page types
31 distinct types under a custom schema pack, consolidated from 57 one-off types.
| Type | Pages | Type | Pages | Type | Pages |
|---|---|---|---|---|---|
| alias | 290 | output | 12 | research | 3 |
| note | 262 | policy | 10 | dashboard | 3 |
| project | 67 | domain | 8 | handoff · place · agent-profile · task | 2 each |
| concept | 62 | essay | 4 | event · social-draft · inbox | 1 each |
| agent-ops-report | 46 | reference · report | 16 each | writing · template · weekly | 1 each |
| daily | 37 | source · person | 15 each | prompt | 1 |
| index | 20 | The original value of a retyped page is kept as original_type. | |||
| company · meeting | 18 each | original | 17 | ||
Related
- Company Brain Structure - the other half: sources, fences, and governance at the level already made public.
- The Last Project You Build Alone - why this vault is custom, harness-independent, and agent-readable.
- Two Brains, One Operator - the architecture and governance behind the personal/company split.
- Building a Second Brain - the research track this reference belongs to.