Facio Blog

Practical notes on human-reviewed AI agents.

Payload-powered product notes, security writing, HITL patterns, and operational guidance from the Facio runtime: long sessions, Placet approvals, audit trails, memory, providers, channels, tools, and Docker-first operations.

Showing 21-25 of 281 articles.

Human-in-the-loop

HITL and the Bounded Autonomy Spectrum: Why "Fully Autonomous" and "Always Reviewed" Are Both Failures

Aug 1, 2026Human-in-the-loop

HITL and the Bounded Autonomy Spectrum: Why "Fully Autonomous" and "Always Reviewed" Are Both Failures

Every HITL system eventually faces the same false binary: "should this be fully autonomous or always reviewed?" The teams that pick either extreme fail. The teams that design a bounded autonomy spectrum — graduated trust, calibrated routing, dynamic boundaries — win. Here is why the spectrum is the only architecture that survives contact with reality, and how to design one that adapts instead of breaks.

Engineering

MCP Server Compliance for EU Regulated Workloads: DSGVO, NIS2, DORA, AI Act, and the EU-Hosted Audit Trail Agents Need

Jul 31, 2026Engineering

MCP Server Compliance for EU Regulated Workloads: DSGVO, NIS2, DORA, AI Act, and the EU-Hosted Audit Trail Agents Need

EU regulatory compliance for MCP in 2026 — DSGVO (data minimization, right to erasure, right to access), NIS2 (supply-chain risk, incident response), DORA (third-party risk, ICT risk management), AI Act (transparency, human oversight, technical documentation), Data Act (portability, interoperability). EU hosting, audit trail, HITL gating, signed images.

Product

Facio's Tool Result Economy Discipline: How AI Agents Get Just Enough Information From Every Tool Call Without Wasting Their Context Window

Jul 31, 2026Product

Facio's Tool Result Economy Discipline: How AI Agents Get Just Enough Information From Every Tool Call Without Wasting Their Context Window

AI agents call tools. The tools return data. The data goes into a finite context window. The naive approach returns everything from every tool call: full database rows, full API responses, full documents. After 50 tool calls, the context overflows. Facio's tool result economy discipline gives agents structured mechanisms to manage what tools return: projection of only requested fields, summarization of large results, pagination for incremental fetching, reference-based results as pointers, and eviction when no longer needed. The agent's context window is spent on what matters.

Security

The Credential Lifecycle That Actually Rotates: Why 86% of Organizations Cannot Rotate AI Agent Secrets on the Cadence They Specified

Jul 31, 2026Security

The Credential Lifecycle That Actually Rotates: Why 86% of Organizations Cannot Rotate AI Agent Secrets on the Cadence They Specified

The Security Boulevard CISO playbook: 86% of organizations cannot rotate AI agent secrets on the cadence they specified. The five-stage credential lifecycle (pre-issuance attestation, JIT issuance, continuous rotation, JIT revocation, post-revocation auditing), the multi-protocol authentication integration, and the ephemeral credential model for delegated access that close the gap.

Human-in-the-loop

HITL and the Recovery-First Principle: Why Every Approved Action Should Be Designed as if It Will Fail

Jul 31, 2026Human-in-the-loop

HITL and the Recovery-First Principle: Why Every Approved Action Should Be Designed as if It Will Fail

Every approved action will fail sometimes. The question is not if, but when and how. Most HITL systems optimize for the action's success. The recovery-first principle says: optimize for the action's failure, because failure is inevitable and recovery is optional. Here is why designing every action as if it will fail produces better HITL decisions than designing for success.