Skip to content JUN 2, 2026 product SHIPPED Discovery PRD — AI-Assisted Article Drafting Workflow A discovery PRD for deploying an article-drafting agent into a skeptical 50-person content org. The load-bearing section voices five stakeholders (editor, strategist, SEO, legal, exec) and translates RAG, hallucination, and eval metrics into each one's language. → JUN 1, 2026 product SHIPPED MCP Security Audit After publishing an MCP server, I audited my own artifact. The real hole wasn't textbook prompt injection but an unconstrained file_path read (audit_intent_spec on /etc/passwd). v0.1.1 closes it: realpath containment, size cap, extension allowlist, audit log. → MAY 31, 2026 infra SHIPPED Code-Brain System Card Maps my live agent fleet to SR-11-7 model-risk materiality tiers and the EU AI Act (Art. 50/72, Annex IV), leading with a scope determination that rules most of the regulation out, then modeling the discipline voluntarily and naming every gap. → MAY 31, 2026 fleet SHIPPED LDR Grounding-Collapse Post-Mortem My local research agent invented Microsoft docs URLs and ranked three nonexistent tools in confidently-formatted output, in 280 of its 900 seconds. The fix was a routing rule, not a bigger model, plus an eval with bite. → MAY 31, 2026 infra SHIPPED Vault as Agent Infrastructure: 5-Test Scorecard Scores four knowledge systems against Nate Jones's five structural tests for agent infrastructure. My vault passes three above Linear, loses two to it, and the two losses are the build map. Every cell is backed by live SQLite telemetry. → MAY 29, 2026 infra SHIPPED Enterprise Data Readiness Matrix A pre-deployment rubric scoring whether a customer's data layer can carry an AI agent: five dimensions, Green/Yellow/Red, floor-rule scoring. Closes the 'enterprise data readiness' gap named in 85% of Tier-1 AI PM JDs. → MAY 21, 2026 product ACTIVE Vault Knowledge MCP: Design Lock Design-locked MCP that wraps Sean's vault: the only public PM vault that passes all five Nate-tests on the agent-infrastructure scoreboard. Ship target ~6/4. → MAY 20, 2026 fleet SHIPPED Knowledge Loop: Phase 6 (Producer + Consumer) A producer-consumer knowledge loop on the vault: overnight flush → synthesize → critique → next-session inject. The same vault that captures the day's thinking serves it back into tomorrow's context window as additionalContext. → MAY 13, 2026 fleet SHIPPED Phase D: Typed Reasoning Edges A typed-edge SQLite layer the nightly synthesizer writes to as a side effect of connection articles. Six relation types turn weekly knowledge-lint contradiction detection into a SQL query instead of an LLM scan. → MAY 12, 2026 product SHIPPED Intent Engineering MCP A Model Context Protocol server exposing intent-engineering tools to Claude Desktop. DNS-verified namespace; shipped to npm + MCP registry 13 days early because the design was right. → MAY 6, 2026 fleet SHIPPED Substack Drafter (gate-b-drafts) A weekly Thursday drafter that reads the writing-voice-modes SKILL.md verbatim and rotates across 5 voice modes (sean / sedaris / kerouac / thompson / vonnegut). Drafts land at gate-b-drafts/, awaiting Sean's first pass before publication. → APR 23, 2026 fleet SHIPPED Vault Synthesizer Eval Suite Ten reference cases the nightly Vault Synthesizer runs against every commit. A Sonnet judge scores quote density + cross-domain pull + depth; CI fails when a regression would otherwise land silently in the knowledge graph. →