CLAUDE LABJP
2.1.278 — The auto mode classifier now runs server-side by default on the Claude API, Enterprise, Bedrock, Vertex and Foundry. You are not billed for the classifier, and /status gained an Auto mode server lineTASKOUT — The TaskOutput tool is gone. taskOutputMaxChars and TASK_MAX_OUTPUT_LENGTH no longer do anything, and background output is read with Read instead10/07 — The old management-configuration key spellings are accepted until noon PT on October 7, seventeen days from now. After that, entries that still use them stop working until you rewrite themBUNPANIC — Reports are coming in of the newest build crashing on launch alone. Earlier builds still run on the same machine, which points at the release rather than the environmentNEW — Deciding what belongs in Cowork and what belongs in Claude Code, using the approval boundary as the lineSONNET4.5 — A date in a deprecation table is a floor, not an end date. Sonnet 4.5 is still active and no deprecation notice has been posted2.1.278 — The auto mode classifier now runs server-side by default on the Claude API, Enterprise, Bedrock, Vertex and Foundry. You are not billed for the classifier, and /status gained an Auto mode server lineTASKOUT — The TaskOutput tool is gone. taskOutputMaxChars and TASK_MAX_OUTPUT_LENGTH no longer do anything, and background output is read with Read instead10/07 — The old management-configuration key spellings are accepted until noon PT on October 7, seventeen days from now. After that, entries that still use them stop working until you rewrite themBUNPANIC — Reports are coming in of the newest build crashing on launch alone. Earlier builds still run on the same machine, which points at the release rather than the environmentNEW — Deciding what belongs in Cowork and what belongs in Claude Code, using the approval boundary as the lineSONNET4.5 — A date in a deprecation table is a floor, not an end date. Sonnet 4.5 is still active and no deprecation notice has been posted
ARTICLES

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All (872) Claude AI (141) Claude Code (371) Cowork (63) API & SDK (297)
Cowork/2026-09-18Intermediate

How I decide between Cowork and Claude Code: by where approvals land

Cowork and Claude Code run the same Claude, so I stopped comparing features and started sorting work by one question: can a human approval interrupt this step, or not? Here is the line I draw and the code I keep on the unattended side.

Cowork/2026-09-16Beginner

The scheduled task that only ran on days my desk was awake

Cowork scheduled tasks run remotely by default, but the moment one needs a local file or app, it runs only on your machine. Here is how the last field in the setup dialog decides that, and the three questions I now answer before creating a task.

Cowork/2026-09-15Intermediate

What you keep the agent from walking matters more than what you hand it

Searching one connected Cowork folder for the same word gave three different answers. Here is what the default search silently left out, and how to measure a folder's scan scope once before you hand it over.

Cowork/2026-09-09Beginner

Using Aqua Voice for Cowork and Everyday Messages — What Changed When I Started Speaking Instead of Typing

I use the dictation app Aqua Voice for briefing Cowork and for messages and email on my iPhone. Notes on how the texture of my writing changed before its speed did, how Mac and iPhone use differs, and what still gets in the way.

Cowork/2026-09-08Advanced

Until I planted a failing sample, my unattended checks had never once failed

A check running on an unattended schedule lost its exit code to a single pipe added for readable logs. I measured where the status disappears and built a small harness that checks the checker.

Cowork/2026-09-05Advanced

I verify what my Cowork memory claims instead of trusting its timestamp

Persistent memory keeps asserting whatever was true the day you wrote it. After an unattended job quietly read an empty folder for months, I stopped judging memory by its modification date and started attaching a verification step to every claim that can rot.

Cowork/2026-08-29Advanced

The lock I left in a shared folder shut out every run after the first

A cloud-synced connected folder allows create, append, and rename, but refuses delete. Putting a single-instance lock there quietly disabled every unattended run after the first. Measurements for three lock styles, plus an implementation that picks a safe location.

Cowork/2026-08-24Intermediate

I counted the keys in my connected folder: filenames found 5 of the 18

A record of counting what lives inside a connected folder, once by filename and once by file contents. Filenames returned 24 hits of which only 5 were real, while a content scan returned 18 of which 13 left no trace in their names. Includes a scanner that never prints a secret, its real output, and the rules I adopted afterwards.

Cowork/2026-08-23Advanced

Not Every Unreachable Connector Means the Same Thing in an Unattended Run

When an unattended task cannot reach a connector, the cause splits into three states: still connecting, unauthenticated, or genuinely absent. Each demands the opposite response. Here is the resolver that tells them apart.

Cowork/2026-07-17Advanced

It Worked on My Machine, but Nobody Could Trigger It — Four Assumptions I Stripped Out of a Cowork Plugin

I bundled four working automation skills into a plugin and shared it. Only one of them ever fired. Here is how I measured skill trigger rate, and the four assumptions — vocabulary, paths, connections, and naming — I had to strip out before it was portable.

Cowork/2026-07-12Advanced

The Night a Connector Grew Write Tools, Your Unattended Job Could Quietly Send Something

The moment a connector update quietly adds write tools, a job you run unattended can suddenly send email or delete files. Here is how to build a gate that snapshots a connector's tool surface, diffs it, and stops unapproved writes before they run — drawn from indie development.

Cowork/2026-07-11Intermediate

Make Your Nightly MCP Connectors' Health Visible — A Lightweight Ledger for Solo Operators

You don't need Enterprise connector observability to see your MCP connectors' error rate and latency. Append one line per tool call, roll it up weekly, and let regressions ring a bell. A working health ledger for anyone running scheduled tasks solo.