Developer Builds Nightly Batch Job to Auto-Generate Claude AI Skills From Chat Logs

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A software developer has built an automated shell script that runs every night at 3:30 AM to extract reusable procedures from Claude AI conversation logs and save them as structured SKILL.md files. The system has so far generated 104 skills from a library of 3,349 accumulated conversation logs without manual intervention. To avoid excessive token costs, the script uses two controls: a watermark mechanism that skips already-processed files, and a hard budget cap of $1.20 per run. These constraints limit each nightly run to processing just three logs and roughly 45KB of content, keeping the operation efficient and cost-controlled. The script also filters out system noise before passing content to the AI model, ensuring only procedurally relevant information is extracted.

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