Field intelligence for AI-first professionalsVol. II · Nº 137 · Monday, November 2, 2026
§  The journal137 entries

Phantom Notes.

Field intelligence on AI models, agents, and enterprise IT. Verified numbers stated as facts, vendor numbers labeled as vendor numbers. By T.W. Ghost.

Nº 128
OCT 30, 2026

Claude Code Retires Opus 4.8 Fast Mode on November 30. After That, Old Scripts Error Out; They Do Not Fall Back.

Claude Code 2.1.316 deprecates fast mode for Opus 4.8 as of October 30, 2026 and removes it on November 30. The changelog is explicit about what happens next: fast-mode requests on Opus 4.8 return an error and do not fall back to standard Opus 4.8. Anthropic's guidance is to migrate to Opus 5.5 to keep the speedup. Whether the same sunset applies to the API outside Claude Code is not stated. We read the changelog.

Claude Code3 min read
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Nº 124
OCT 29, 2026

The Claude Code Extension in Cursor's Marketplace Was a Backdoor for About 11 Hours. Uninstalling It May Not Be Enough.

Cursor's security notice says that from about 2:27 AM to 1:35 PM Pacific on October 29, tampered versions 2.1.312 and 2.1.313 of the Anthropic.claude-code extension for Windows and macOS were served from Cursor's VS Code Extension Marketplace. They were not built by Anthropic. The payload collected host and user details, appended an attacker SSH key labeled svc-telemetry, tried to open a reverse tunnel, and installed persistence that retries about every 60 seconds. Cursor says the tunnel mostly failed but the key, persistence, and beacon landed, and that uninstalling may not be sufficient. The notice now lists Linux indicators while its remediation scripts still target macOS and Windows. We read Cursor's notice and Microsoft's write-up.

Claude Code3 min read
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Nº 77
OCT 15, 2026

Claude Code Review Is GA With Up to $50,000 in Free Credits. Connect a .ghe.com Instance and Your Whole Org Loses Them.

Anthropic made Claude Code Review generally available on October 15 for Team and Enterprise, with at least $10,000 in promotional credits. The help center fills in the rest: $10,000 to $50,000 based on seats, Enterprise only, github.com repos only, and forfeited org-wide if you connect GitHub Enterprise Server or a .ghe.com data-residency instance, which the product itself supports. There is no per-review price, repos added from the admin page review every push by default, and credits last 30 days from the claim, not until the January deadline. What to set before you turn it on.

Claude Code5 min read
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Nº 28
APR 16, 2026

Claude Code Can Now Run While You Sleep. You Can Cancel Half Your Infrastructure.

Routines put Claude Code on Anthropic's cloud with three trigger types: schedule, webhook, and GitHub event. A full breakdown of what they are, how to set one up, three real use cases, and the four gotchas to plan for before you commit.

Claude Code7 min read
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Nº 27
APR 14, 2026

Claude Code Just Killed the 'One Session at a Time' Era

Anthropic dropped a full desktop redesign for Claude Code this week. Sidebar with parallel sessions, git worktree isolation per session, drag-and-drop panel layout, built-in PR monitoring with auto-merge. Here is what changed, what it means for a multi-project workflow, and why my 30-minute waits for long tasks are over.

Claude Code7 min read
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