Great day at AWS Community Day Bay Area Security Edition on Friday! Always great catching up with the Bay Area community and to hang out with fellow Heroes! My session on the security risks with MCP was hopefully an eye opener for many.
Looking forward to the next one!
Thanks to everyone who joined yesterday's Gothenburg Serverless meetup and to Knightec Group for hosting! Next meetup on May 5 hosted by our friends at Cloud Enablers!
Sign up to the group for notifications:
www.meetup.com/gothenburg-s...
#serverless #gothenburg
VS Code Marketplace: marketplace.visualstudio.com/items?itemNa...
DEV Community: dev.to/gunnargrosch...
Builder Center: builder.aws.com/content/3BX6...
New tool: durable-viz turns AWS Lambda durable function handlers into flowcharts using static analysis. No deployment, no credentials.
TypeScript, Python, Java. CLI or VS Code extension.
npx durable-viz handler.ts --open
github.com/gunnargrosch...
context.invoke() unlocks a pattern: one Lambda coordinator dispatching specialist agents as separate functions. Every call checkpointed, coordinator suspended while specialists run.
dev.to/gunnargrosch...
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Gothenburg Serverless is back! Join us at Knightec in Lindholmen on April 7:
- Spec-Driven Development for Serverless (Isak Holmdahl, Knightec)
- Long-Running Serverless Workflows as Sequential Code (me)
Food and drinks from 17:30. Space is limited:
www.meetup.com/gothenburg-s...
Lambda Durable Functions: sequential code, checkpointed state, up to a year of execution. Zero compute during waits.
Wrote about checkpoint/replay and built an AI support triage workflow with human-in-the-loop callbacks.
dev.to/gunnargrosch...
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I haven't done that yet. Have played quite a bit but still trying to get the hang of everything. Is the expedition worth doing
This game is so addictive!
Does your circuit breaker trip when it should? Do your retries back off or hammer a dead endpoint? failure-lambda 1.0: inject real failure conditions into any Lambda function to find out.
dev.to/gunnargrosch...
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#aws #serverless #chaosengineering
DOOM runs on everything. Now AI coding assistants join the list.
doom-mcp: an MCP server that lets Claude Code, Kiro, or Cursor play the actual DOOM engine.
dev.to/gunnargrosch...
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I'll be in Amsterdam during KubeCon Europe week (March 23-26). Exploring what's next after 5+ years in DevRel at AWS.
No ticket yet (hint hint), but around all week. Want to grab coffee and talk cloud native, AI, or dev experience? DM me!
#KubeConEU #CloudNative
In-memory circuit breakers are silently useless on Lambda.
Each environment tracks failures independently. With 50 concurrent environments and threshold 5, you need 250 failures before any circuit opens.
dev.to/gunnargrosch...
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New post: Multi-agent systems with RISEN prompts. The routing logic lives in the coordinator Steps section, not in code. Agents as tools, hooks for observability, routing eval with stubs.
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New post: Lightweight evals for AI agent output quality. Structural checks, LLM-as-judge, calibration loop. RISEN prompts double as your eval spec. Runnable demo with two domains.
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New post: RISEN (Role, Instructions, Steps, Expectation, Narrowing) turns vague system prompts into behavioral contracts for AI agents. Three scenarios with a runnable demo, including one with MCP tools.
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dev.to/gunnargrosch...
After over five years at AWS, I'm part of the February layoffs. I've spent that time close to practitioners and the community, and that's what I'm looking for in what's next. Developer advocacy, DevRel, or community building. Longer post here:
www.linkedin.com/posts/gunnar...
New post: Streaming Bedrock Responses Through API Gateway and Lambda
~500ms to first token instead of 8-10s. A side-by-side demo with the code and config to make it work.
dev.to/gunnargrosch...
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New post: Building AI Agents in TypeScript with the Strands Agents SDK
TypeScript support is in preview. A quick look at getting started: five examples from minimal agent to multi-tool orchestration.
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New post: Building the AWS Serverless Power for Kiro
Built a Kiro Power with 25 MCP tools and ten steering guides for AWS serverless. Same expertise, different packaging.
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New post: Turning AWS Serverless Experience into a Claude Code Plugin
Encoded serverless expertise into skill guides so Claude makes the judgment calls that come from experience, not just documentation.
builder.aws.com/content/39yk...
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New post: Extending Claude Code with Plugins and Skills for AWS Development
Teach Claude your deployment process and security checks once. Skills are markdown files that replace repeated explanations. Plugins package them for your team.
builder.aws.com/content/39vd...
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New post: Improving Your AWS Development Workflow on Claude Code with MCP Servers
Seven MCP servers for AWS development. Query CloudWatch, design DynamoDB schemas, automate browser testing, and more.
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Updated DEV link for reasons: dev.to/gunnargrosch...
New post: Automating Your Workflow with Claude Code Hooks
CLAUDE.md is the style guide. Hooks are the linter. 10 practical examples you can use right away.
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CLAUDE.md teaches Claude Code your conventions. Write them once, remembered every session.
New post: templates, modular rules, and the pitfalls that waste your context window.
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New guide: Claude Code with Bedrock in VS Code and JetBrains
Get inline diffs and visual code review in your IDE while keeping code in AWS. Covers VS Code authentication (the tricky part) and JetBrains setup.
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The Claude Code VS Code extension works by connecting to to Bedrock in the same way as the CLI. It doesn't specifically have autocomplete though.
Continue is an open source extension that can connect to Bedrock. I have not used it myself so can't vouch for it, but definitely worth checking out.
