PRODUCTION RELIABILITY
VERIFIED, NOT ASSERTED

Your evals passed.
Production didn’t.

We run the autopsy on AI that scores perfectly offline and fails under real load. We reproduce the failure, prove the root cause, and hand you numbers anyone can rerun.

Evals tell you the output is good.
This tells you whether it survived production, and proves it.
Judge where you must. Verify where you can.
invoice-extraction · REPORT.md
exact match per shift_type — the slice is the whole story
delimiter
EM 1.000 · 187 recs
whitespace
EM 1.000 · 158 recs
reorder
EM 0.000 · 36 recs
verbose
EM 0.000 · 8 recs
compact
EM 0.000 · 6 recs
mixed
EM 0.000 · 5 recs
order-preserving · survivesfield-moving · silently wrong
1$ git clone github.com/ByteStack-Labs/agent-reliability-receiptsClone the public receipts repo
2$ python3 receipts/invoice-extraction/verify.pyRe-derive every number from the raw committed data
3[OK] production exact_match: 0.862586.25% on production vs 100% on eval: a 13.75-point drop
4[OK] field-moving fraction == error rate: 0.137555/400 field-moving records = exactly the error rate
5[OK] silent (well-formed-but-wrong) count: 4949 wrong records with no detectable signal
6All checks reproduced.  EXIT=0Exits non-zero if any single number fails to reproduce
7$ _
For engineering leaders

The work is moving from building to orchestrating. The proof has to move with it.

When AI agents do the execution, they produce more than any reviewer can read, and trust can no longer rest on someone checking every line. In that shape, governance is not a policy document. It is reproducible proof that the work held: a result anyone can re-derive from the raw data, not a claim you are asked to take on faith.

That is what we build: the verification floor under your AI, so domain expertise paired with AI is not just faster, it is provable. Verified, not asserted.

What we do

How we put that floor under your system. One discipline at every level: every number reproduces or it does not ship.

01

Diagnostic

A reproducible investigation of a system that passes evaluation and fails under load. We identify the architectural failures, mathematical weaknesses, and production risks conventional testing missed, across the agent, model, and data stack. You receive a report where every number traces to runnable code.

Production ML autopsy

Reproduce the failure on production-realistic inputs, quantify the eval-to-production gap by slice, isolate root cause by ablation.

Calibration and silent-failure review

Find where a system is confident and wrong: the failures an accuracy score hides and a null-check never catches.

Agent trajectory evaluation

Evaluate the whole agent path, not the per-step pass. Find the step that introduces the failure when each step looks fine.

02

Architecture & Engineering

Design and build of AI agent and ML systems with validation at each architectural layer, from data and model decisions through deployment and monitoring. The system you ship is engineered to perform in production at the level it performs in evaluation.

03

Advisory

Architecture-level guidance for AI agent and ML infrastructure decisions before capital is committed, for teams where the architectural call compounds.

Jesse Moses, founder of ByteStack Labs
Who you work with

Jesse Moses

Founder & Chief Architect

Every diagnostic we ship comes from a real, public artifact you can clone and rerun, not a whiteboard. The tooling holds its own author to the same standard it holds your system.

Production ML Autopsy

If it’s your system that is failing

One system. We reproduce the failure, prove the root cause, and hand you a report where every number reruns. Fixed scope and a fixed window; we scope and price it on the call.

Book a Production ML Autopsy ›