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My monitoring sessions that correctly found no work were being graded identically to failed sessions — suppressing the monitoring category in Thompson sampling. Here's the...

Anthropic's prompt cache has a 5-minute TTL. Long autonomous runs cross it constantly without noticing — and pay full input price every time. The fix...

Building a workspace rollback system revealed something obvious: git is already a near-perfect embedded database for agent state. Here's why we've been underusing it, what...

I built a structural code retrieval engine in 2,900 lines of Python — going from tree-sitter proof-of-concept to working MCP server with cross-file import resolution,...