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I rewrote my Bedrock client three times. Then I extracted the boring parts into one library.

I rewrote my Bedrock client three times. Then I extracted the boring parts into one library.

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4 min read
I shipped 50 agent infrastructure libraries. Here is what I learned.

I shipped 50 agent infrastructure libraries. Here is what I learned.

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7 min read
Detect Prompt Injection Before Your Agent Acts on It

Detect Prompt Injection Before Your Agent Acts on It

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4 min read
Build a Provider Failover Chain That Actually Works Under Pressure

Build a Provider Failover Chain That Actually Works Under Pressure

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3 min read
Stop Writing Tool Schemas by Hand: tool-schema-from-fn

Stop Writing Tool Schemas by Hand: tool-schema-from-fn

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6 min read
A/B Test Your Prompts Without a Framework

A/B Test Your Prompts Without a Framework

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5 min read
Version and Hash Your Prompt Templates: Know Exactly Which Prompt Produced Each Response

Version and Hash Your Prompt Templates: Know Exactly Which Prompt Produced Each Response

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5 min read
My agent retried a 401 Unauthorized nine times. The fix was two lines.

My agent retried a 401 Unauthorized nine times. The fix was two lines.

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5 min read
Stop Writing One-Off Case Converters for LLM Tool Args: tool-arg-rename

Stop Writing One-Off Case Converters for LLM Tool Args: tool-arg-rename

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5 min read
The conversation you saved to disk still has the SSN in it

The conversation you saved to disk still has the SSN in it

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6 min read
Six Security Layers for Python LLM Agents

Six Security Layers for Python LLM Agents

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6 min read
Stateful Rolling Chat History: Manage Conversation Memory Without Blowing the Context Window

Stateful Rolling Chat History: Manage Conversation Memory Without Blowing the Context Window

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4 min read
How to Know When Your Agent Is Done (Before It Runs Forever)

How to Know When Your Agent Is Done (Before It Runs Forever)

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6 min read
Two Copies of the Tool List, One Agent That Broke: agent-fn-registry

Two Copies of the Tool List, One Agent That Broke: agent-fn-registry

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7 min read
prompt-template-version: Semver-Pin Your System Prompts So You Can Always Roll Back

prompt-template-version: Semver-Pin Your System Prompts So You Can Always Roll Back

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6 min read
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