OpenYantra -- Personal Cognition Ledger

02 / Architecture

Built on non-negotiable invariants.

Six architectural rules that can never be broken. Every feature is evaluated against all six. Complexity that violates any invariant is rejected at the design stage -- not deferred.

Single Memory File

All persistent memory lives in chitrapat.ods -- ISO/IEC 26300 open standard. Human-readable, editable, portable. Never replaced by a database.

Canonical

Single Writer Rule

Only Chitragupta (LedgerAgent) writes to memory. All agents are read-only. Every write flows through Sanchitta queue -- no exceptions.

LedgerAgent

14-Sheet Schema

Memory structured across Identity, Goals, Projects, People, Beliefs, Tasks, Open Loops, Inbox, and more. Domain separation is strict.

14 Domains

Full Auditability

Every write logged, timestamped, SHA-256 signed. Agrasandhanī is append-only. Audit capability can never be removed.

SHA-256

Local-First

Runs fully offline. No cloud dependencies, no external APIs required. Your data never leaves your machine.

Offline

Bidirectional Sync

.ods is the canonical human file. SQLite is the v3.0 operational sidecar. Both always exist. User edits .ods in LibreOffice; yantra sync re-imports to SQLite.

v3.0

chitrapat.ods

ISO/IEC 26300 open standard.
Human-readable. Edit in LibreOffice.
Canonical source of truth.

Non-negotiable

⇅ bidirectional sync yantra sync --watch

chitrapat.db

SQLite sidecar (v3.0).
Sub-ms writes, SQL query power.
Rebuilt from .ods on user edits.

v3.0 -- planned

Write flow -- the only path to memory

01 / Source

Agent

Any AI agent

›

02 / Queue

Sanchitta

Crash-safe queue

›

03 / Security

Raksha

Injection scan

›

04 / Writer

Chitragupta

Sole writer + SHA-256

›

05 / Store

Chitrapat.ods

+ SQLite sync (v3.0)

03 / Live Simulation

See it running.

Three live simulations: CLI terminal, Web UI Briefing Room, and Mobile app. All running a shared state engine. Click any command -- the state updates across all panels.

Daily

Memory

Maintenance

yantra v2.12 -- zsh

Records

247

Open Loops

Ledger

489

Health

http://localhost:7331 -- OpenYantra Briefing Room v2.12

247

Records

Open Loops

Inbox

Health

🌅 Morning Brief 🔥 7-day streak

Good morning, Revanth.
12 open loops · 3 stale projects · 3 inbox items pending.
Oldest loop: "3-act vs 5-act structure" -- 14 days.

🔮 Oracle -- 2 insights

inbox_loop_match

Inbox: "Priya budget" may relate to loop "Budget approval pending"

stale_project

"OpenYantra Website" -- active but no session mention in 14 days

3 unrouted items

Content	Captured	Importance
Priya mentioned budget revision needed Friday	4m ago	6
Research 5-act structure for screenplay	2h ago	8
Check with Arun about location permits	1d ago	7

Topic	Priority	Days	TTL
3-act vs 5-act structure	High	14	30d
Budget approval from Priya	High	7	30d
VidyaKosha BM25 tuning	Med	21	90d

Project	Domain	Priority	Next Step
My Film	Creative	High	Write act 2
OpenYantra	Tech	High	Ship v2.12
Documentary Cut	Creative	Med	Review rough cut

Cross-reference engine -- reads all sheets, never writes, surfaces non-obvious connections.

inbox_loop_match

"Priya budget" in Inbox shares keywords with loop "Budget approval from Priya"

→ Route Inbox item and link to loop

stale_project

"OpenYantra Website" is Active but not mentioned in last 10 sessions (14d quiet)

→ Next step: Push v2.12 or mark paused

loop_aging

"3-act vs 5-act structure" is 14d old (47% of 30d TTL), not in recent sessions

→ Resolve, delegate, or extend TTL

Timestamp	Agent	Sheet	Operation	Status
2026-03-21 09:14	Claude	📥 Inbox	add	written
2026-03-21 09:10	Claude	🚀 Projects	update	written
2026-03-21 08:55	TelegramBot	📥 Inbox	add	written

✓ No threats detected -- Chitrapat is clean. 489 entries verified.

Agent	Tier	Status
Claude	Known (3)	trusted
TelegramBot	External (1)	strict scan

Home

9:41●

OpenYantra

chitrapat.ods · Active

247

Records

Loops

Health

489

Ledger

3-act vs 5-act structure

High · 14d open

Budget approval from Priya

High · 7d open

📥 3 unrouted inbox items

Tap to route

Home

Loops

Capture

Health

Quick Capture

9:41●

Capture

Send to Inbox

Priya mentioned budget revision needed by Friday...

LOOP

TASK

GOAL

✓ INBOX

Send to Inbox

Home

Loops

Capture

Health

9:41●

Health

All systems nominal

chitrapat.ods

1.2MB · OK

Agrasandhanī

489 entries · Sigs valid

Chitragupta

Last write: 4m ago

VidyaKosha

247 rows indexed · TF-IDF

Raksha

0 quarantined · All clean

Home

Loops

Capture

Health

Your context.
Your file.
Your control.

Built on non-negotiable invariants.

See it running.

Everything you need to build with it.

Your context.Your file.Your control.

Built on non-negotiable invariants.

See it running.

Everything you need to build with it.

Your context.
Your file.
Your control.