Alexander Kastil

Software engineer since 1996, AI architect now. Building agents with Claude & MS Foundry, posting what holds up in production. Founder of

[Massimo @Rainmaker1973]

«The richest man in the world»

[Alexander Kastil @integrations_at]

@cabinsmountain Look like a Maloca Deluxe 🥰

[Alexander Kastil @integrations_at]

Your boss wants the agent team by lunch.

Claude Harness 0.10 brings Harness as Code: one .harness script creates the agents, skills, hooks and MCP servers, checks each line and backs up what it changes. Type-ahead and Tab completion right in Claude Code.

#ClaudeCode #VSCode

[Alexander Kastil @integrations_at]

Claude Code plugins, the easy way.

Ask Plugin Hunter for your preferred stack's skills and agents and get one installed plugin in your own marketplace, with the old copies retired in one tick.

Free: https://t.co/JK0xWz0f9J
#ClaudeCode #VSCode #HarnessEngineering

[The Nature Girl @thenatureegirl]

Those eyes.. 🥺

[Alexander Kastil @integrations_at]

@BenGeskin Same as the new X iPad app … wasting a lot of width

[Best in Dogs @BestinDogs]

Man Takes Old Dog From The Shelter So He Doesn’t Die In There Alone 🥹❤️

[Massimo @Rainmaker1973]

1980s vs 2026

[Alexander Kastil @integrations_at]

Claude Harness 0.1x brought the inventory of your Claude Code setup into VS Code. 0.2x adds sessions: the process, the decisions and the estimated cost of every session. 38 s demo attached. Install:
https://t.co/JK0xWz0f9J
#ClaudeCode #VSCode #HarnessEngineering #DevTools

[Alexander Kastil @integrations_at]

Get work done wherever you wait. Winter tyres at the ÖAMTC while Claude creates and moves my decks.

Me, every five minutes: "Are you done?" Claude: "Not yet." Happy weekend!

#ClaudeCode #AgenticAI #WeekendMode

[Sergey🇷🇺🇰🇿⚕ @cepmak]

Блогер показал, что собеседование в 2026 году проходит уже без людей. Компания прислала на созвон ИИ-рекрутера, блогер в ответ подключил своего ИИ-агента и вышел из кадра.

Нейросети ещё какое-то время обсуждали вакансию без людей. В конце обе зависли и начали бесконечно прощаться друг с другом.

[Alexander Kastil @integrations_at]

@eTonereToner Follow-up: your comment made it into 0.1.29 today. Claude Harness now flags every skill, agent or command that exists in more than one place, tells you whether the copies are identical or have drifted (SHA-256), and opens the diff in one click.

[Alexander Kastil @integrations_at]

Which of my 140 Claude Code skills are global, and which sit in one repo? I could no longer tell.

So I built Claude Harness: my whole harness in one VS Code window, global and per repo, editable in place.

Get it on the VS Code Marketplace: https://t.co/QiqgPgv1GO

#ClaudeCode #VSCode

[Alexander Kastil @integrations_at]

@eTonereToner Appreciate your input: provenance is what bites at this size. I ran into it with my first solution months ago. Tracking versions across several sources of truth is still open. Claude Harness is an early version, built in under two hours.

[VIEW @viewsoff]

Socotra, Yemen 🇾🇪