OpenEXA Research Research notes and the series behind OpenEXA's agentic infrastructure. https://www.openexa.com/research.html 2026-09-21T00:00:00Z OpenEXAhttps://www.openexa.com/ https://www.openexa.com/assets/img/icon-192.png https://www.openexa.com/assets/img/icon-512.png Compounding Error and the Case for Decomposition. A Research Note on Agent Architecture https://www.openexa.com/research/01-compounding-error.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA Why long-horizon autonomous work must be decomposed into narrow agents behind a deterministic boundary. Specializing a Model to a Rulebook and Proving What It Did. A Research Note on Post-Training and Audit https://www.openexa.com/research/02-post-training-and-audit.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA How a general model comes to follow one rulebook, and how a hash-chained ledger proves what it did. Not Tasks. Lifecycles. Why We Stopped Building Assistants https://www.openexa.com/research/03-not-tasks-lifecycles.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA The six traits a process must have before we will touch it, and why finance comes first. Why Five Thousand Small Agents Beat One Large One https://www.openexa.com/research/04-five-thousand-small-agents.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA Failure analysis, not a taste for scale: an agent that sees the whole job leaves no seam where a policy can intervene. Agents Decide. Code Executes. The One Boundary That Matters https://www.openexa.com/research/05-agents-decide-code-executes.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA Eight layers, one boundary. The top four estimate; the bottom four are deterministic code. Post-Training a Model on a Rulebook, Not on the Internet https://www.openexa.com/research/06-post-training-on-a-rulebook.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA Closing the gap between a model that knows finance and one that knows this lifecycle. The Execution Council. Governance in Milliseconds https://www.openexa.com/research/07-the-execution-council.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA What the Council checks, the three operating modes, and the halt that works in every mode. A Ledger Nobody Can Edit. Hash Chains as Audit Infrastructure https://www.openexa.com/research/08-a-ledger-nobody-can-edit.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA Append-only, hash-chained, replayable. Why a record an administrator can edit is only a claim. Lifecycle 01. What Ten Sessions on Real Markets Taught Us https://www.openexa.com/research/09-lifecycle-01-ten-sessions.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA The setup, the result, where the cost goes, and precisely what ten sessions do not show. Master and Copy. How a Proven Agent Becomes a Platform https://www.openexa.com/research/10-master-and-copy.html 2026-09-21T00:00:00Z 2026-09-21T00:00:00Z OpenEXA Three phases: prove one agent, master and copy it, then open the rails.