Gurusankar Kasivinayagam · founder, VinaLabs
Systems that tell the truth about themselves.
I build AI systems for a living, ship my own products alongside, and write down what breaks so the next build does not repeat it.
pulli kolam · drawn fresh each day · the only ornament here
Building
Astram Intelligence — the operating system I run my work on
Leading
Applied-AI engineering and training at the firm where I work
Teaching
A four-part course on disciplined engineering in the AI era
Researching
Taste as a measurable thing — Paarvai for sight, Oli for sound
Product · Astram Intelligence அஸ்திரம்
An operating system for one person running the work of many.
Every project, decision, risk, meeting and reflection is one immutable event in a single append-only log. Every tracker, board, portfolio view and daily cockpit is derived from that log. Nothing is hand-edited, so nothing drifts.
Five lenses · one stream
A live cockpit for today: calendar, what moved, what is contended, what is missing. Material from every other lens, filtered to right now.
Events
6,900+
rows in the live event store as of Aug 2026 — the count only grows
Event types
16
a closed, declared vocabulary; no free-form types
Lenses
5
day · plan · machinery · strategy · garden
Status
In daily use
runs one operator's real workload; not yet offered to others
01 · Range
Accessibility audits to physics-informed AI. Ventures, client work, training, and things I build for myself.
- 2025–nowAstram IntelligenceThe operating system I run my work on: one append-only log, five lenses, every view derived.Event-sourced operating systemsVenture
- 2025–nowSamarthyamVinaLabs' accessibility practice: standards-grounded audits, code-level remediation and training — conformance you can evidence, not assert.Digital accessibilityVenture
- 2026Accessibility training for Bajaj FinservA two-day WCAG programme for product and content teams, built around a live case study of their own product.Accessibility enablementClient · VinaLabs
- 2025–2026Website accessibility for APNAConformance testing and code-level remediation for APNA's public website against WCAG, IS 17802 and GIGW 3.0.Accessibility audit & remediationClient · VinaLabs
- 2026PDF accessibility assessmentsPre-contract PDF/UA assessments for two prospective clients. Honest diagnoses; neither converted.Document accessibilityClient · VinaLabs
- 2025–2026OpenMesh360A marketplace connecting global capability centres with service partners — legal, HR, real estate, technology, banking — across a full request-to-proposal lifecycle.B2B marketplace SaaSClient · VinaLabs
- 2026ReplateA real one-to-one clinical-nutrition practice for women — PCOS, insulin resistance, thyroid, pregnancy — going digital: booking, intake and consent, vitals, plans.Clinical nutrition for womenVenture
- 2026AI triage for security operationsAn LLM-and-retrieval pipeline that turns security alerts into scored, prioritised tickets, with redaction and audit logging.AI systems · cybersecurityClient · the firm
- 2026AI operations for a foundation's assistantReliability, observability and cost work on a production AI assistant serving a large foundation.LLM operations · observability · costClient · the firm
- 2026Physics-informed AI for R&DA platform helping a manufacturer's R&D teams move from need to concept, grounded in physics-informed surrogate models and a knowledge graph of prior art.Surrogate models · knowledge graphsClient · the firm
- 2026Deal-pricing engineA cost corridor plus a willingness-to-pay layer, with role-gated access that hides internal cost below manager level.Sales tooling · pricingClient · the firm
- 2026–nowOpenMic and the DevOps SDLC courseA weekly internal talk series, and a four-part course on disciplined engineering when AI writes much of the code.Engineering educationTraining
- 2026Paarvaiபார்வை, sight. A visual-taste engine: 38 evidence-graded principles, a model of my taste, and a critic that renders real pages and scores them on both.Visual taste · design critiqueResearch
- 2026Oliஒலி, sound. A mood-driven generative engine — tanpura-like drone, an improvising voice with gamaka glides, interface sounds always in key — and a loudness gate.Generative sound · moodResearch
02 · Writing
Notes from the work. Mostly about how things fail quietly.
- A Check Is Only As Honest As Its Name
The most common defect I keep finding isn't a missing check. It's a check whose name promises more than its query delivers.
Honest systems
5 min read - AI Evals Measure the Software, Not the Work
Most AI evaluation suites drift toward checking whether the system behaved correctly instead of whether the work it produced was any good — build the coverage matrix before you trust a single metric in one.
Working with models
6 min read - Jev and the End of Prompt-and-Parse
TypeSafe's Jev returns a typed judgment and a calibrated number instead of a paragraph you then have to parse — worth testing against the heuristic it would replace, not worth trusting on the vendor's word.
Working with models
7 min read - PDF Accessibility Is Harder Than It Looks: Two Proposals That Didn't Convert
The hardest part of document accessibility isn't fixing the tags — it's diagnosing whether a file can be fixed at all, and an honest diagnosis sometimes costs you the deal.
Practice
5 min read - Physics, Not Prompts: Where Generative AI Doesn't Belong
A model that reasons in tokens will hallucinate on physical law — the honest answer for deep-tech R&D is surrogate models grounded in physics plus a knowledge graph of prior art, and knowing where not to reach for an LLM matters as much as knowing where to.
Working with models
6 min read
03 · Ledger
Things I got wrong, with the root cause and what changed.
A record of successes alone is a report nobody should trust. These are the misses that taught me the most.
- I closed a project on a report I never verified
Closure now requires a check that does not route back through the person whose work is being checked. A suspiciously clean report is a reason to look, not a reason to relax.
cost
A quarter of false confidence; a reopened project - Running six roles at once made volume my only proof of value
I shed the build and kept the seam: measurement, costing, and the connection between a technical system and a business outcome.
cost
A month without buffer; judgement traded for output - My own venture lost to client work — by default
I reprioritise by irreversibility, not by who is asking loudest — the risks without a do-over come first. And 'nobody is forcing this' no longer means 'this can wait'.
cost
Months of stall at the point it was closest to launch - I built a careful comparison on a field I could not see
Every comparison I present now states which fields the tooling could not read. An unlisted field is a stated gap, not a silent assumption.
cost
A confident, wrong conclusion
04 · Lab
Can taste be measured? Two instruments, built to design this site.
Paarvai · பார்வை · sight
A critic with citations.
It renders a page on desktop and phone, in light and dark, measures colour, complexity, space, type and motion, then scores it twice: once against 38 research-graded principles, once against my own recorded taste. It scored this site.
Oli · ஒலி · sound
A room that follows the page.
A tanpura-like drone, an improvising voice that slides between notes the way a gamaka does, and air. Each section of this site carries a mood; the room moves with you. Interface sounds are always in key. Off until you ask.
05 · How I work
Four rules, each paid for.
Measure before you claim
A number I cannot defend is not a number I publish. Where the evidence is thin, I say so and name the next measurement.
Derive, never hand-edit
One source of truth, every view computed from it. If two stores must agree, they are written at the same moment.
Read the effect, not the report
The row, the file, the rendered page — not the line claiming it happened. A green check proves only what it actually checked.
Quiet by default
Software should earn attention, not demand it. Calm surfaces, one accent, sound only when asked.