We build multi-agent systems that audit their own work.

Cantus Industries designs agentic architectures where the generator and the verifier are never the same agent, standards are measurable instead of aspirational, and an incomplete review can never return an approval.

Custom bots, autonomous agents, and end-to-end agentic workflows — built to order.

Every claim on this page is verifiable: our frameworks are public, tested, and documented — clone them and run the suites yourself.

315passing tests
3public repositories
2LLM platforms
0unverifiable claims

Your workflow, with a verifier in the loop

Document review that blocks instead of rubber-stamps

Contracts, policies, releases, content — reviewed in parallel by specialist agents, with a verdict your team can gate real decisions on.

Scheduled pipelines that refuse partial data

Reporting and data-to-production automation that validates at every boundary and never publishes on an incomplete picture.

Repetitive decisions with an audit trail

The judgment calls your team makes fifty times a week, executed by agents — every outcome traceable to evidence and a named standard.

Custom bots grounded in your own materials

Assistants that answer only from sources you control and decline everything else. You can talk to one at the bottom of this page →

The code is public

Most consultancies show you slide decks. We show you repositories — three hundred fifteen tests between them, every limitation documented in the README. And these are the examples, not the extent: Cantus Industries builds custom bots, autonomous agents, and end-to-end agentic workflows to order.

Example: document review automation

multi-agent-review-council

156 tests

Parallel document review by six specialist agents with a fail-loud consensus ledger. If a reviewer crashes, times out, or never reports, the run is blocked and is never approved on partial evidence. 156 tests. Runs offline, on Claude, or on Gemini behind one protocol.

Example: scheduled data pipelines

scheduled-deployment-pipeline

159 tests

A scheduled pipeline from parallel ingestion agents to a gated, reversible production deploy. Refuses to publish on partial data; every write is atomic, backed up, and verified after landing. 159 tests.

Case study: a full four-layer architecture

agentic-writers-room

A case study: one operator directing ten-plus agents across four layers and two LLM platforms, with persistent state and a human gate on every decision. The architecture the two frameworks above were extracted from.

One engagement, drawn to scale The case-study architecture above, as a live network. Hover any bubble to isolate its touchpoints.
YOU assign · steer accept CLAUDE production line drafts · edits ANTIGRAVITY independent review separate platform SHARED STATE knowledge base ledger · memory DRAFTER agent EDITOR agent research research rev 1 rev 2 rev 3 rev 4 rev 5 rev 6
10+ agents 2 platforms 1 human gate 16 touchpoints Every line runs both ways. Count them yourself — the architecture is documented in full.

Three ways to engage

Every engagement is fixed-scope and milestone-gated. We do not bill hourly.

Agentic Readiness Diagnostic

$2,500–$5,000 Two weeks

We take one workflow you believe could be automated — a review process, a reporting pipeline, a repetitive decision — and put it through the same analysis our own systems use. You receive a written findings report: where agents genuinely fit, where they don't, what the architecture would look like, and what it would cost to build. Findings come with severity ratings and evidence, the same format our review council produces. If the answer is "don't build this," the report says so.

The exact figure sits inside the range by the scope of the workflow, is fixed in writing before we start, and never moves mid-engagement.

Consensus Review Deployment

Scoped after diagnostic

A multi-agent review panel adapted to your documents and your standards — contracts, policies, releases, content — with viewpoints you define, a fail-loud ledger, and verdicts your team can gate real decisions on. Built on our public council framework.

Autonomous Pipeline Deployment

Scoped after diagnostic

Scheduled, hands-off data-to-production automation with validation at every boundary, atomic deploys, backups, and rollback. Built on our public pipeline framework. Setup plus an optional maintenance retainer.

How we build

Five principles, all visible in the public code.

  1. 01

    Durable state beats clever prompting.

    Hard problems get solved with versioned files on disk — ledgers, timelines, knowledge bases — not longer prompts. No agent depends on its memory of a prior session.

  2. 02

    The generator never verifies its own work.

    Producer and reviewer are separate agents, ideally on separate platforms with separate failure modes.

  3. 03

    Standards must be measurable to be enforceable.

    Numeric caps and countable rules, not adjectives. "Use sparingly" is not a standard; "no more than two per document, counted mechanically" is.

  4. 04

    Fail loud.

    A system that cannot complete its checks blocks; it never returns a confident default. Incomplete evidence is a verdict, and that verdict is no.

  5. 05

    The human gate is a feature.

    Throughput comes from the agents; judgment does not. A named person owns every decision that ships.

Nicholas Chapman, founder.

I came to agentic AI through an organizational mandate to raise AI fluency at scale, where the measure of success was tempo — how much faster a team can move without lowering its standard for verification. That environment made two things obvious early: speed without a check is a liability, and a check that slows everything down defeats the purpose. Everything Cantus Industries builds is aimed at having both.

The portfolio is built on commercially available frontier models, on my own time, on personal projects. The code is public and tested. Read it before you call me.

Start with the code, then talk to us.

Booking Booking via email / Link coming soon

Ask before you email

Answers come only from our public materials. Anything it can't source, it declines — that's the product working.