BYOK AI agent platform — release notes and engineering posts https://nestor.sh/ 2026-04-30T18:00:00Z https://nestor.sh/favicon.svg https://nestor.sh/assets/logo-512.png Laurent Rochetta https://github.com/lrochetta © 2026 nestor.sh — MIT License nestor.sh static feed https://nestor.sh/blog/inside-bmad-plus-personas.html 2026-04-30T18:00:00Z 2026-04-30T18:00:00Z

A technical post-mortem of Nestor's 5-persona BMAD+ stack: how delegation works, when role specialization earns its complexity, and the 3 production failures (hallucinated tool whitelist violations, persona context bleed, router cost explosion) that keep the whole thing behind NESTOR_PERSONA_V2=1.

https://nestor.sh/blog/v3-5-refactor-three-god-objects.html 2026-04-26T18:00:00Z 2026-04-26T18:00:00Z

How we split store.ts (-67%), runtime.ts (-35%), and shell.ts (-55%) in the Nestor monorepo for a -56% total LOC reduction with zero public API breaks. Three patterns that generalize: StoreCore delegation, minimal interfaces, callback injection.

https://github.com/lrochetta/nestor/releases/tag/v3.5.0 2026-04-26T17:00:00Z 2026-04-26T17:00:00Z

Maintenance release focused on reliability (numbered migrations), portability (NESTOR_HOME env var, darwin-x64 deprecate), and a deep refactor of three monolithic files (store.ts, runtime.ts, shell.ts) totalling -56% lines across 50+ new focused modules. No public API breaks. All 258 tests green throughout.

https://github.com/lrochetta/nestor/releases/tag/v3.4.1 2026-04-22T12:00:00Z 2026-04-22T12:00:00Z

Public launch on npm under the nestor-sh package name. SEO/GEO wave: sitemap.xml, llms.txt, JSON-LD schemas across all docs pages, robots.txt with explicit allow for LLM search crawlers (GPTBot, ClaudeBot, PerplexityBot, etc.).

https://github.com/lrochetta/nestor/releases/tag/v3.4.0 2026-04-17T12:00:00Z 2026-04-17T12:00:00Z

Hat system (--hat osint, coder, researcher, security, writer) for specialized personas with role-specific tools. Rust security core additions: homoglyph detection on string inputs, ReDoS guard on user-supplied regex, multi-pass path-traversal rejection. Self-improving skills via nestor_build_tool.

https://github.com/lrochetta/nestor/releases/tag/v3.3.0 2026-04-15T15:00:00Z 2026-04-15T15:00:00Z

Mission system: give an objective, get a structured report from sub-agents that decompose, execute in parallel, cross-reference, and iterate until quality threshold. DAG workflow engine with cron scheduling, parallel execution, and governance gates.

https://github.com/lrochetta/nestor/releases/tag/v3.2.0 2026-04-15T08:00:00Z 2026-04-15T08:00:00Z

First-class adapters for 7 LLM providers: Anthropic Claude, OpenAI, Google Gemini, xAI Grok, Mistral, Ollama, OpenRouter. HotSwapAdapter for mid-run model switching. Auto-downgrade monitor on rate-limit signals.

https://github.com/lrochetta/nestor/releases/tag/v3.1.0 2026-04-14T12:00:00Z 2026-04-14T12:00:00Z

React-based Studio dashboard for monitoring agents in real time. WebSocket event bus for runtime telemetry. Per-agent budget caps and approval modes (off/smart/manual). MCP server with 15 nestor_* tools for Claude Desktop, Cursor, Cline.