CLAUDE LABJP
CLI — Claude Code v2.1.259 landed on September 2. It is a dense release focused on org-wide configuration, unattended runs, and permissions — the most practically useful one this weekMCP — A new managedMcpServers setting lets an organization push HTTP/SSE MCP servers to every user. At the same time allowedMcpServers narrowed in scope, so an allowlist no longer filters managed servers outHEADLESS — The new --permission-prompts none flag denies anything that would prompt, while the active permission mode, auto included, keeps making its own calls. Useful for anything you run unattendedSECURITY — Bash Read() deny rules had gaps: files passed as option values such as --ignore-revs-file=.env, and compounds like cd DIR && cat FILE, slipped past them. Both are now coveredSLACK — Claude Tag no longer judges messages one at a time. It reads the whole channel, along with its memory and your standing instructions, and is roughly 30% better at staying out of conversationsLEARN — Claude Academy is open. It is a free learning hub built on the 4D AI Fluency Framework that Anthropic uses to onboard its own team, with completion tracked in your Claude profileCLI — Claude Code v2.1.259 landed on September 2. It is a dense release focused on org-wide configuration, unattended runs, and permissions — the most practically useful one this weekMCP — A new managedMcpServers setting lets an organization push HTTP/SSE MCP servers to every user. At the same time allowedMcpServers narrowed in scope, so an allowlist no longer filters managed servers outHEADLESS — The new --permission-prompts none flag denies anything that would prompt, while the active permission mode, auto included, keeps making its own calls. Useful for anything you run unattendedSECURITY — Bash Read() deny rules had gaps: files passed as option values such as --ignore-revs-file=.env, and compounds like cd DIR && cat FILE, slipped past them. Both are now coveredSLACK — Claude Tag no longer judges messages one at a time. It reads the whole channel, along with its memory and your standing instructions, and is roughly 30% better at staying out of conversationsLEARN — Claude Academy is open. It is a free learning hub built on the 4D AI Fluency Framework that Anthropic uses to onboard its own team, with completion tracked in your Claude profile
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Claude Code3Timezone2Cowork2Indie Development1Operations1Claude Desktop1Session Management1axScreenReader1Unattended runs1Terminal1Scheduled Tasks1Troubleshooting1
Claude Code/2026-09-03Intermediate

Aligning Log Timezones at Display Time, or Fixing Them at Write Time

AdMob, the store reports, and my own logs each ended the day at a different moment. Here is how I went back and forth between display-side and write-side timezone handling, and what I settled on.

Claude AI/2026-08-29Beginner

The 30-Day Session Cleanup Is Fixed, and It Made Me Rethink Where I Keep Records

Claude Desktop and Cowork sessions were quietly disappearing after 30 days until v2.1.248 fixed it. Here is how to check your own setup, what the new setting actually caps, and a small journal script that keeps one line per run outside the session.

Claude Code/2026-07-15Advanced

Keeping Unattended Logs Readable — Measuring axScreenReader's Plain-Text Rendering Before Adopting It

Piping Claude Code into a log file leaves you with escape codes and redraw debris instead of an answer. Here is how I enabled axScreenReader across its three entry points, measured the difference on one real task, and moved my unattended runs over to it.

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.