Facio Blog
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 16-20 of 81 articles.
Engineering
Google's official MCP server gives AI agents direct access to GA4 data — account discovery, standard reports, funnel analysis, and realtime metrics — all authenticated via Application Default Credentials. Seven tools, one pipx install, and the signal that MCP has arrived.
Product
When an AI agent makes a mistake at 4 AM, you need to know what happened — not wait for a human to grep through server logs. Facio's read_logs tool gives agents access to their own persistent execution log, with level filtering, time-range queries, and regex search. The agent diagnoses its own failures. Here's how the architecture works and why self-auditability matters for production autonomy.
Security
The Model Context Protocol is now critical infrastructure — confirmed by the NSA's formal Cybersecurity Information Sheet. From transport-layer interception to context poisoning to supply chain threats, every MCP deployment faces a five-layer attack surface that traditional API security doesn't cover.
Human-in-the-loop
Every organization implementing HITL goes through the same progression — from ad-hoc prompts to deterministic policy engines. Knowing which stage you're at tells you what to fix next. Here's the four-level maturity model, how to self-assess, and what each transition requires.
Engineering
Pathrule attaches AI agent context (memories, rules, skills) to directory paths instead of flat files, with signal-based retrieval and self-auditing detectors. 30 MCP tools, measured 85% fewer input tokens per session.