CAIN-42 CAIN Studio

AGENTIC AI 75 · #38

Multi-agent desktop supervision

The Codex app provided parallel agents, isolated worktrees, background tasks and reviewable changes.

Last reviewed 2026-11-11

Agentic AI 75 / #38

LIVEMoat 4 · Execution Provenance & AttestationBundle · Code & ProofStream 5

2026 status: Released product · Category: Developer tooling

The 2026 development

The Codex app provided parallel agents, isolated worktrees, background tasks and reviewable changes.

The governance gap

Parallel agents on one repository create merge, test and authority conflicts. Isolation is not only a git feature; each agent needs its own scope and a record of what it changed.

Where CAIN-42 fits: Moat 4 — Execution Provenance & Attestation

Core question: Can we prove what actually happened? Hash-chained, signed records binding decision to execution to observable effect.

Give each agent an isolated worktree, a scoped task and a signed trail. Review is a decision over artifacts, not over a chat transcript.

How the wiring works

  1. Create a throwaway worktree per agent and task.
  2. Restrict each agent to its own branch and declared paths.
  3. Run the reference test per worktree and record the result.
  4. Present the diff, test and authority trail for review.

What is real today

LIVE A public route in this deployment exercises this mechanism today, within its stated scope.

The hosted recorder proves signed run records on fixed samples. It is not the Codex app.

Component in this repositoryWhat the module says it is
keystone/repo.pyThe loop at repository scale: scan a tree, and prove a proposed fix with the project's own tests.
keystone/recorder.pyFLIGHT RECORDER KEYSTONE: a signed, replayable record of everything an agent did, that still verifies after redaction.
keystone/sandbox.pyRun a module's tests inside a bubblewrap sandbox: no network, read-only system, only its own files, time-boxed.

Descriptions are the first line of each module's own docstring, read without importing it. A module path is a pointer into this repository, not a hosted endpoint. Its existence is checked by the test suite; its status for this use is the label above.

Check it yourself

Commercial package

OfferParallel Agent Run Review
BuyerEngineering organisations and coding-agent vendors
Price (proposal)$2,500–$5,000 per review
BundleCode & Proof — Prove the fix, not just the diff.
Operator streamStream 5 of the 10-stream operator playbook

Platform engineering, AI coding-tool vendors, security engineering is the bundle buyer. The entry offer for this bundle is Fabrication audit or long-run engineering attestation; the range is $1,500–$6,000 per audit; $2,500–$4,000/month retainer. A price on this page is a proposal, not a validated rate, and no customer is claimed.

Buy this as a product or service

CAIN-A75-038 — Parallel Agent Run Review PILOT

A bounded pilot report: up to five scenarios, the relevant library engine or analysis, a written result and the stated limits. Engineering time is quoted per pilot.

Kind: Assessment · Price (proposal): $2,500–$5,000 per review · Lead time: 10 business days.

Open the product page · all 75 products

What this page does not claim

What this page is not. CAIN-42 is not affiliated with, endorsed by, integrated into, or shipped with the organisation named in the 2026 item. The item is public context; the page describes how CAIN-42 would govern that class of capability. No page here claims a customer, a partnership, a certification, a patent, or a production integration. Prices are proposals. Built by a three-person team.

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