Related:
◈ Cowork/2026-06-25Intermediate
My Unattended Task Was Overwriting the Previous Day's Log — the Container's date Was Returning UTC
A Cowork scheduled task that wrote date-stamped logs was silently overwriting the prior day's file. The culprit was the container's date returning UTC. Here is how I isolated it and the permanent fix: pin the timezone, append instead of overwrite, and detect the failure.
⬡ API & SDK/2026-06-14Advanced
Record Which Model Actually Answered — Attestation Logging for Headless Pipelines
Persist the model field and usage from every API response so you can detect when the served model differs from the one you requested, and reconcile per-model cost ahead of the usage credits change.
⟐ Claude Code/2026-04-24Intermediate
Why Your Custom MCP Server's Logs Disappear — Writing to stderr in Claude Code
If you're building your own MCP server and your console.log lines never appear — while Claude Code silently reports the tool as unresponsive — you're probably polluting stdio. Here's how to spot it and rewrite your logs to keep the protocol intact.