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prompt-cache-key: Stable Hashes for Anthropic Prompt Cache Scopes

prompt-cache-key: Stable Hashes for Anthropic Prompt Cache Scopes

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5 min read
llm-tool-arg-coerce: Stop LLM String Arguments From Crashing Your Tools

llm-tool-arg-coerce: Stop LLM String Arguments From Crashing Your Tools

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5 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
agentsnap: Jest-Style Snapshot Tests for AI Agent Tool Calls

agentsnap: Jest-Style Snapshot Tests for AI Agent Tool Calls

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5 min read
Five Observability Layers Every Production Agent Needs

Five Observability Layers Every Production Agent Needs

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6 min read
llm-json-repair: Three-Pass Local JSON Repair for LLM Responses in Rust

llm-json-repair: Three-Pass Local JSON Repair for LLM Responses in Rust

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4 min read
agentvet-rs: Validate Tool Args Before Your Agent Executes Them (Rust)

agentvet-rs: Validate Tool Args Before Your Agent Executes Them (Rust)

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5 min read
Cut Your Anthropic Bill in Half with the Batch API

Cut Your Anthropic Bill in Half with the Batch API

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5 min read
Defending Against Prompt Injection in Python Agents

Defending Against Prompt Injection in Python Agents

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6 min read
Checkpoint Your Agent Jobs So Crashes Don't Mean Starting Over

Checkpoint Your Agent Jobs So Crashes Don't Mean Starting Over

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4 min read
Run Your Agent in Shadow Mode Before You Trust It With Production

Run Your Agent in Shadow Mode Before You Trust It With Production

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4 min read
I thought shadow mode was on. It wasn't. 400 emails later I built agent-shadow-mode.

I thought shadow mode was on. It wasn't. 400 emails later I built agent-shadow-mode.

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6 min read
Keep Your Anthropic Prompt Cache Alive With prompt-cache-warmer

Keep Your Anthropic Prompt Cache Alive With prompt-cache-warmer

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5 min read
Rust: Tag Your Agent Tools With Side-Effect Metadata Before Dispatching Them in Parallel

Rust: Tag Your Agent Tools With Side-Effect Metadata Before Dispatching Them in Parallel

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4 min read
Format Tool Output for LLMs Before It Becomes a Tool Result: tool-output-format

Format Tool Output for LLMs Before It Becomes a Tool Result: tool-output-format

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5 min read
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