◉CLAUDE LABJP
●2.1.283 — Claude Code reached 2.1.283 on September 25. The new /doctor prompt-audit flags prompting patterns in your CLAUDE.md and skills that were written for older models●MODELS — Two new managed settings, availableModelsMatch and deniedModels, let you pin allowed models to an exact version or block specific ones outright●10/07 — The old spellings of the Claude Desktop and Cowork managed config keys stop being accepted at 12:00 PT on October 7, ten days from now●CACHE — One report describes the one-hour prompt cache expiring every 11 to 12 minutes, with the whole conversation rewritten at twice the input rate●NEW — The week Opus 5.5 became the default, three places where an alias was still pointing elsewhere●RETIRE — We checked the Claude API deprecations page itself: no model retirements are scheduled in the next 60 days. The most recent was Opus 4.1 on August 5●2.1.283 — Claude Code reached 2.1.283 on September 25. The new /doctor prompt-audit flags prompting patterns in your CLAUDE.md and skills that were written for older models●MODELS — Two new managed settings, availableModelsMatch and deniedModels, let you pin allowed models to an exact version or block specific ones outright●10/07 — The old spellings of the Claude Desktop and Cowork managed config keys stop being accepted at 12:00 PT on October 7, ten days from now●CACHE — One report describes the one-hour prompt cache expiring every 11 to 12 minutes, with the whole conversation rewritten at twice the input rate●NEW — The week Opus 5.5 became the default, three places where an alias was still pointing elsewhere●RETIRE — We checked the Claude API deprecations page itself: no model retirements are scheduled in the next 60 days. The most recent was Opus 4.1 on August 5
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◈ 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.

⬡ API & SDK/2026-06-25Advanced

Reach a Remote MCP Server in a Single API Request: Implementing the Messages API MCP Connector

How to call a remote MCP server's tools using only the Messages API's mcp_servers and mcp_toolset—no local MCP client. Covers allowlist/denylist design, response handling, and the pitfalls to avoid before unattended production use.

◈ Cowork/2026-03-09Beginner

Canva × Claude in Practice — Saving Generated Candidates, Picking a design_type, Committing Edits

The parts of the Canva AI connector that actually trip people up in Claude: why generated designs are not saved yet, how to pick a design_type, why editing is a transaction, and what to check before exporting.