Christian Tzolov
@tzolov.bsky.social
Spring AI lead | MCP Java SDK maintainer | Spring Framework team at Broadcom
Pinned
Christian Tzolov
@tzolov.bsky.social
Β· Dec 11
#SpringAI Tool Search Tool - Build smarter AI apps that discover tools when they need them
π Blog: spring.io/blog/2025/12...
π GitHub: github.com/spring-ai-community/spring-ai-tool-search-tool
β On-demand tool discovery
β Multiple LLMs
β 34-64% token savings
@spring-ai.bsky.social
π Blog: spring.io/blog/2025/12...
π GitHub: github.com/spring-ai-community/spring-ai-tool-search-tool
β On-demand tool discovery
β Multiple LLMs
β 34-64% token savings
@spring-ai.bsky.social
Subagent Orchestration delegate tasks to focused subagents with isolated contexts and run in parallel
#SpringAI TaskTool provides a portable, model-agnostic implementation inspired by Claude Code's subagents
π spring.io/blog/2026/01...
@spring-ai.bsky.social #AI #Java #Agents
#SpringAI TaskTool provides a portable, model-agnostic implementation inspired by Claude Code's subagents
π spring.io/blog/2026/01...
@spring-ai.bsky.social #AI #Java #Agents
January 27, 2026 at 1:59 PM
Subagent Orchestration delegate tasks to focused subagents with isolated contexts and run in parallel
#SpringAI TaskTool provides a portable, model-agnostic implementation inspired by Claude Code's subagents
π spring.io/blog/2026/01...
@spring-ai.bsky.social #AI #Java #Agents
#SpringAI TaskTool provides a portable, model-agnostic implementation inspired by Claude Code's subagents
π spring.io/blog/2026/01...
@spring-ai.bsky.social #AI #Java #Agents
Reposted by Christian Tzolov
π Spring AI 2.0.0-M2 is here!
β¨ Highlights:
- Anthropic Custom Skills support,
- Null-safe API with JSpecify,
- New vector stores: S3, Infinispan, Bedrock KB,
- Redis Semantic Cache,
- Structured outputs for Mistral AI & Ollama,
- MCP SDK 0.17.2 and bug fixes
spring.io/blog/2026/01...
β¨ Highlights:
- Anthropic Custom Skills support,
- Null-safe API with JSpecify,
- New vector stores: S3, Infinispan, Bedrock KB,
- Redis Semantic Cache,
- Structured outputs for Mistral AI & Ollama,
- MCP SDK 0.17.2 and bug fixes
spring.io/blog/2026/01...
Spring AI 2.0.0-M2 Available Now
Level up your Java code and explore what Spring can do for you.
spring.io
January 25, 2026 at 2:30 PM
π Spring AI 2.0.0-M2 is here!
β¨ Highlights:
- Anthropic Custom Skills support,
- Null-safe API with JSpecify,
- New vector stores: S3, Infinispan, Bedrock KB,
- Redis Semantic Cache,
- Structured outputs for Mistral AI & Ollama,
- MCP SDK 0.17.2 and bug fixes
spring.io/blog/2026/01...
β¨ Highlights:
- Anthropic Custom Skills support,
- Null-safe API with JSpecify,
- New vector stores: S3, Infinispan, Bedrock KB,
- Redis Semantic Cache,
- Structured outputs for Mistral AI & Ollama,
- MCP SDK 0.17.2 and bug fixes
spring.io/blog/2026/01...
Reposted by Christian Tzolov
Tomorrow, Iβll have the privilege to kick off the jChampions Conference, a free online event with sessions presented by Java Champions βοΈ Iβll talk about Modular RAG with Spring AI, Arconia, and Docling at 3:00 pm CET π www.youtube.com/watch?v=ZcB4...
Schedule: jchampionsconf.com/schedule.html
Schedule: jchampionsconf.com/schedule.html
Modular RAG Architectures with Java and Spring AI
YouTube video by JChampions Conference
www.youtube.com
January 21, 2026 at 5:37 PM
Tomorrow, Iβll have the privilege to kick off the jChampions Conference, a free online event with sessions presented by Java Champions βοΈ Iβll talk about Modular RAG with Spring AI, Arconia, and Docling at 3:00 pm CET π www.youtube.com/watch?v=ZcB4...
Schedule: jchampionsconf.com/schedule.html
Schedule: jchampionsconf.com/schedule.html
#SpringAI is among the official adopters of the Agent Skills specification: agentskills.io
It is nice to see a Java toolkit next to Claude, Cursor, Gemini, GitHub... Find more about the Spring AI Skills integration: www.linkedin.com/feed/update/...
#Java #AI @spring-ai.bsky.social
It is nice to see a Java toolkit next to Claude, Cursor, Gemini, GitHub... Find more about the Spring AI Skills integration: www.linkedin.com/feed/update/...
#Java #AI @spring-ai.bsky.social
January 22, 2026 at 11:47 AM
#SpringAI is among the official adopters of the Agent Skills specification: agentskills.io
It is nice to see a Java toolkit next to Claude, Cursor, Gemini, GitHub... Find more about the Spring AI Skills integration: www.linkedin.com/feed/update/...
#Java #AI @spring-ai.bsky.social
It is nice to see a Java toolkit next to Claude, Cursor, Gemini, GitHub... Find more about the Spring AI Skills integration: www.linkedin.com/feed/update/...
#Java #AI @spring-ai.bsky.social
If AI agent drops steps on complex tasks, add TodoWriteTool-a #SpringAI tool that enables LLMs to create, track, and update task lists during execution. It transforms implicit planning into explicit, trackable workflows.
πBlog: spring.io/blog/2026/01...
#Java #AI
πBlog: spring.io/blog/2026/01...
#Java #AI
January 20, 2026 at 1:19 PM
If AI agent drops steps on complex tasks, add TodoWriteTool-a #SpringAI tool that enables LLMs to create, track, and update task lists during execution. It transforms implicit planning into explicit, trackable workflows.
πBlog: spring.io/blog/2026/01...
#Java #AI
πBlog: spring.io/blog/2026/01...
#Java #AI
#SpringAI AskUserQuestionTool - AI agents that ask clarifying questions before answering, gather requirements interactively, and create a specification aligned with your actual needs
πBlog: spring.io/blog/2026/01...
#AI #Java #Agent @spring-ai.bsky.social
πBlog: spring.io/blog/2026/01...
#AI #Java #Agent @spring-ai.bsky.social
January 15, 2026 at 3:52 PM
#SpringAI AskUserQuestionTool - AI agents that ask clarifying questions before answering, gather requirements interactively, and create a specification aligned with your actual needs
πBlog: spring.io/blog/2026/01...
#AI #Java #Agent @spring-ai.bsky.social
πBlog: spring.io/blog/2026/01...
#AI #Java #Agent @spring-ai.bsky.social
Bringing Agent Skills to Java and #SpringAI π
Modular, reusable capabilities for your AI agents -discovered at startup, loaded on demand. Portable across any LLM.
Inspired by & compatible with Claude Code Skills.
Part 1 of the Agentic Patterns series: spring.io/blog/2026/01...
@spring-ai.bsky.social
Modular, reusable capabilities for your AI agents -discovered at startup, loaded on demand. Portable across any LLM.
Inspired by & compatible with Claude Code Skills.
Part 1 of the Agentic Patterns series: spring.io/blog/2026/01...
@spring-ai.bsky.social
January 13, 2026 at 1:31 PM
Bringing Agent Skills to Java and #SpringAI π
Modular, reusable capabilities for your AI agents -discovered at startup, loaded on demand. Portable across any LLM.
Inspired by & compatible with Claude Code Skills.
Part 1 of the Agentic Patterns series: spring.io/blog/2026/01...
@spring-ai.bsky.social
Modular, reusable capabilities for your AI agents -discovered at startup, loaded on demand. Portable across any LLM.
Inspired by & compatible with Claude Code Skills.
Part 1 of the Agentic Patterns series: spring.io/blog/2026/01...
@spring-ai.bsky.social
πAs 2025 comes to a close, I'm taking a moment to reflect on an extraordinary year of innovation with Spring AI - From MCP integration to agents, explainable AI, token optimization, ... Read the full story π
www.linkedin.com/pulse/2025-y...
www.linkedin.com/pulse/2025-y...
December 30, 2025 at 2:46 PM
πAs 2025 comes to a close, I'm taking a moment to reflect on an extraordinary year of innovation with Spring AI - From MCP integration to agents, explainable AI, token optimization, ... Read the full story π
www.linkedin.com/pulse/2025-y...
www.linkedin.com/pulse/2025-y...
π€ Building AI agents? You can capture WHY the LLM makes decisionsβnot just what it decides. #SpringAI's Tool Argument Augmenter captures LLM reasoning alongside tool callsβuseful for building memory-enhanced agents. No tool modifications needed!
π spring.io/blog/2025/12...
π spring.io/blog/2025/12...
December 23, 2025 at 12:28 PM
π€ Building AI agents? You can capture WHY the LLM makes decisionsβnot just what it decides. #SpringAI's Tool Argument Augmenter captures LLM reasoning alongside tool callsβuseful for building memory-enhanced agents. No tool modifications needed!
π spring.io/blog/2025/12...
π spring.io/blog/2025/12...
#SpringAI Tool Search Tool - Build smarter AI apps that discover tools when they need them
π Blog: spring.io/blog/2025/12...
π GitHub: github.com/spring-ai-community/spring-ai-tool-search-tool
β On-demand tool discovery
β Multiple LLMs
β 34-64% token savings
@spring-ai.bsky.social
π Blog: spring.io/blog/2025/12...
π GitHub: github.com/spring-ai-community/spring-ai-tool-search-tool
β On-demand tool discovery
β Multiple LLMs
β 34-64% token savings
@spring-ai.bsky.social
December 11, 2025 at 8:51 AM
#SpringAI Tool Search Tool - Build smarter AI apps that discover tools when they need them
π Blog: spring.io/blog/2025/12...
π GitHub: github.com/spring-ai-community/spring-ai-tool-search-tool
β On-demand tool discovery
β Multiple LLMs
β 34-64% token savings
@spring-ai.bsky.social
π Blog: spring.io/blog/2025/12...
π GitHub: github.com/spring-ai-community/spring-ai-tool-search-tool
β On-demand tool discovery
β Multiple LLMs
β 34-64% token savings
@spring-ai.bsky.social
JSON is the go-to format for LLM tool responses, but alternatives like TOON, XML, CSV, YAML can potentially improve token efficiency and performance.
Find how to configure #SpringAI tool responses formats and optimize for your use case:
spring.io/blog/2025/11...
@spring-ai.bsky.social
Find how to configure #SpringAI tool responses formats and optimize for your use case:
spring.io/blog/2025/11...
@spring-ai.bsky.social
November 25, 2025 at 9:03 AM
JSON is the go-to format for LLM tool responses, but alternatives like TOON, XML, CSV, YAML can potentially improve token efficiency and performance.
Find how to configure #SpringAI tool responses formats and optimize for your use case:
spring.io/blog/2025/11...
@spring-ai.bsky.social
Find how to configure #SpringAI tool responses formats and optimize for your use case:
spring.io/blog/2025/11...
@spring-ai.bsky.social
Reposted by Christian Tzolov
A few thoughts from Chicago.
November 22, 2025 at 10:08 PM
A few thoughts from Chicago.
π Spring AI 1.1.0 GA Released
π§ Better MCP Integration ... πMCP OAuth2 server protection π Recursive Advisors ...π¦ Developer Experience: ... Over 850+ commits
Kudos to the entire Spring AI community! π
Find more: spring.io/blog/2025/11...
@spring-ai.bsky.social
π§ Better MCP Integration ... πMCP OAuth2 server protection π Recursive Advisors ...π¦ Developer Experience: ... Over 850+ commits
Kudos to the entire Spring AI community! π
Find more: spring.io/blog/2025/11...
@spring-ai.bsky.social
November 13, 2025 at 8:01 AM
π Spring AI 1.1.0 GA Released
π§ Better MCP Integration ... πMCP OAuth2 server protection π Recursive Advisors ...π¦ Developer Experience: ... Over 850+ commits
Kudos to the entire Spring AI community! π
Find more: spring.io/blog/2025/11...
@spring-ai.bsky.social
π§ Better MCP Integration ... πMCP OAuth2 server protection π Recursive Advisors ...π¦ Developer Experience: ... Over 850+ commits
Kudos to the entire Spring AI community! π
Find more: spring.io/blog/2025/11...
@spring-ai.bsky.social
π€βοΈ LLM-as-a-Judge with #SpringAI
Evaluating LLM output is challenging. Traditional metrics fall short, and human evaluation doesn't scale.
LLM-as-a-Judge uses LLMs to evaluate AI-generated content, matching human judgment
π spring.io/blog/2025/11...
π οΈ github.com/spring-proje...
Evaluating LLM output is challenging. Traditional metrics fall short, and human evaluation doesn't scale.
LLM-as-a-Judge uses LLMs to evaluate AI-generated content, matching human judgment
π spring.io/blog/2025/11...
π οΈ github.com/spring-proje...
November 10, 2025 at 10:17 AM
π€βοΈ LLM-as-a-Judge with #SpringAI
Evaluating LLM output is challenging. Traditional metrics fall short, and human evaluation doesn't scale.
LLM-as-a-Judge uses LLMs to evaluate AI-generated content, matching human judgment
π spring.io/blog/2025/11...
π οΈ github.com/spring-proje...
Evaluating LLM output is challenging. Traditional metrics fall short, and human evaluation doesn't scale.
LLM-as-a-Judge uses LLMs to evaluate AI-generated content, matching human judgment
π spring.io/blog/2025/11...
π οΈ github.com/spring-proje...
Self-Improving AI Agents with #SpringAI Recursive Advisors - enabling iterative AI workflows that can loop, validate and retry until goals are achieved
Think of observable tool calling, evaluations, validation... agentic loops.
Find more: spring.io/blog/2025/11...
Think of observable tool calling, evaluations, validation... agentic loops.
Find more: spring.io/blog/2025/11...
November 4, 2025 at 10:42 AM
Self-Improving AI Agents with #SpringAI Recursive Advisors - enabling iterative AI workflows that can loop, validate and retry until goals are achieved
Think of observable tool calling, evaluations, validation... agentic loops.
Find more: spring.io/blog/2025/11...
Think of observable tool calling, evaluations, validation... agentic loops.
Find more: spring.io/blog/2025/11...
Excited to be speaking at @vaadin.com Create 2025! π
π Day 1: "Spring AI & MCP for all things AI" talk
π§ Day 2: Hands-on lab with @marcushellberg.dev
Discover how JVM rules the AI world! vaadin.com/vaadin-creat...
@spring-ai.bsky.social #MCP
π Day 1: "Spring AI & MCP for all things AI" talk
π§ Day 2: Hands-on lab with @marcushellberg.dev
Discover how JVM rules the AI world! vaadin.com/vaadin-creat...
@spring-ai.bsky.social #MCP
October 20, 2025 at 6:54 AM
Excited to be speaking at @vaadin.com Create 2025! π
π Day 1: "Spring AI & MCP for all things AI" talk
π§ Day 2: Hands-on lab with @marcushellberg.dev
Discover how JVM rules the AI world! vaadin.com/vaadin-creat...
@spring-ai.bsky.social #MCP
π Day 1: "Spring AI & MCP for all things AI" talk
π§ Day 2: Hands-on lab with @marcushellberg.dev
Discover how JVM rules the AI world! vaadin.com/vaadin-creat...
@spring-ai.bsky.social #MCP
Excited to be speaking at @devoxx.com with @chemicl.bsky.social π We'll be diving into #MCP Java SDK and #SpringAI hands-on, showing you how to build AI apps that actually know what's going on around them.
More details: m.devoxx.com/events/dvbe2...
More details: m.devoxx.com/events/dvbe2...
October 9, 2025 at 8:55 AM
Excited to be speaking at @devoxx.com with @chemicl.bsky.social π We'll be diving into #MCP Java SDK and #SpringAI hands-on, showing you how to build AI apps that actually know what's going on around them.
More details: m.devoxx.com/events/dvbe2...
More details: m.devoxx.com/events/dvbe2...
#SpringAI (1.1.0-SNAPSHOT) & MCP Java SDK, makes #MCP Server development a breeze! Inspired by the FastMCP Context, it brings fluent APIs for logging, progress notifications, client elicitation, LLM sampling and more ...π‘
@spring-ai.bsky.social
@spring-ai.bsky.social
October 7, 2025 at 11:48 AM
#SpringAI (1.1.0-SNAPSHOT) & MCP Java SDK, makes #MCP Server development a breeze! Inspired by the FastMCP Context, it brings fluent APIs for logging, progress notifications, client elicitation, LLM sampling and more ...π‘
@spring-ai.bsky.social
@spring-ai.bsky.social
At the MCP Dev Summit keynote, David Soria Parra (MCP co-creator) called out the MCP Java SDK - "really really popular"! Grateful to be part of it. Shoutout to @thedsp.bsky.social and the #MCP & @spring-ai.bsky.social communities for building something special together! π
October 4, 2025 at 12:01 PM
At the MCP Dev Summit keynote, David Soria Parra (MCP co-creator) called out the MCP Java SDK - "really really popular"! Grateful to be part of it. Shoutout to @thedsp.bsky.social and the #MCP & @spring-ai.bsky.social communities for building something special together! π
we all have job to do for someone :)
github.com/modelcontext...
github.com/modelcontext...
Release v0.14.0 Β· modelcontextprotocol/java-sdk
What's Changed
refactor: Improve resource template management and API consistency by @tzolov @pascalconfluent #576
fix: handle resource not found according to spec by @sdelamo in #567
feat: add op...
github.com
October 2, 2025 at 4:59 AM
we all have job to do for someone :)
github.com/modelcontext...
github.com/modelcontext...
We've released MCP Security for Spring AI - here's the announcement blog post: spring.io/blog/2025/09...
The project lives here: github.com/spring-ai-co...
Try it out, give us feedback, contribute!
The project lives here: github.com/spring-ai-co...
Try it out, give us feedback, contribute!
Securing MCP Servers with Spring AI
Level up your Java code and explore what Spring can do for you.
spring.io
October 1, 2025 at 7:58 AM
Connect Your #AI to Everything with #SpringAI's new #MCP Boot Starters and Java Annotations.
This intro blog demonstrates building both MCP Servers and Clients, showcasing basic and advanced MCP features π
spring.io/blog/2025/09...
@spring-ai.bsky.social
This intro blog demonstrates building both MCP Servers and Clients, showcasing basic and advanced MCP features π
spring.io/blog/2025/09...
@spring-ai.bsky.social
Connect Your AI to Everything: Spring AI's MCP Boot Starters
Level up your Java code and explore what Spring can do for you.
spring.io
September 16, 2025 at 1:42 PM
Connect Your #AI to Everything with #SpringAI's new #MCP Boot Starters and Java Annotations.
This intro blog demonstrates building both MCP Servers and Clients, showcasing basic and advanced MCP features π
spring.io/blog/2025/09...
@spring-ai.bsky.social
This intro blog demonstrates building both MCP Servers and Clients, showcasing basic and advanced MCP features π
spring.io/blog/2025/09...
@spring-ai.bsky.social
Excited to present at @ai4devs.bsky.social Amsterdam this Friday, September 19th! I'll be sharing the latest Spring AI and MCP (Model Context Protocol) advancements for Java developers: amsterdam.ai4devs.io/speakers/chr...
Christian Tzolov
Spring AI lead developer, Staff Software Engineer at Broadcom;
amsterdam.ai4devs.io
September 15, 2025 at 10:41 AM
Excited to present at @ai4devs.bsky.social Amsterdam this Friday, September 19th! I'll be sharing the latest Spring AI and MCP (Model Context Protocol) advancements for Java developers: amsterdam.ai4devs.io/speakers/chr...
Reposted by Christian Tzolov
π From Single-Shot LLMs to Intelligent Agents: Building Scalable AI Systems with Spring AI and MCP by @tzolov.bsky.social @ Spring I/O 2025
βΆοΈ Video: youtu.be/l38CPjOYsHk
π Slides: 2025.springio.net/slides/from-...
π οΈRepo: github.com/spring-proje... #springio25
βΆοΈ Video: youtu.be/l38CPjOYsHk
π Slides: 2025.springio.net/slides/from-...
π οΈRepo: github.com/spring-proje... #springio25
From Single-Shot LLMs to Intelligent Agents: Building Scalable AI Systems with Spring AI and MCP
YouTube video by Spring I/O
youtu.be
September 1, 2025 at 8:30 AM
π From Single-Shot LLMs to Intelligent Agents: Building Scalable AI Systems with Spring AI and MCP by @tzolov.bsky.social @ Spring I/O 2025
βΆοΈ Video: youtu.be/l38CPjOYsHk
π Slides: 2025.springio.net/slides/from-...
π οΈRepo: github.com/spring-proje... #springio25
βΆοΈ Video: youtu.be/l38CPjOYsHk
π Slides: 2025.springio.net/slides/from-...
π οΈRepo: github.com/spring-proje... #springio25
Reposted by Christian Tzolov
Spring AI 1.1.0-M1 is here! Featuring:
β’ Comprehensive MCP integration including the support for Streamable HTTP client & server transports
β’ New MCP annotations framework
β’ Google GenAI SDK integration
β’ Anthropic Claude prompt caching and more
spring.io/blog/2025/09...
β’ Comprehensive MCP integration including the support for Streamable HTTP client & server transports
β’ New MCP annotations framework
β’ Google GenAI SDK integration
β’ Anthropic Claude prompt caching and more
spring.io/blog/2025/09...
September 9, 2025 at 4:44 PM
Spring AI 1.1.0-M1 is here! Featuring:
β’ Comprehensive MCP integration including the support for Streamable HTTP client & server transports
β’ New MCP annotations framework
β’ Google GenAI SDK integration
β’ Anthropic Claude prompt caching and more
spring.io/blog/2025/09...
β’ Comprehensive MCP integration including the support for Streamable HTTP client & server transports
β’ New MCP annotations framework
β’ Google GenAI SDK integration
β’ Anthropic Claude prompt caching and more
spring.io/blog/2025/09...