Digest · 2026-09-02

Close-up of a smartphone wrapped in a chain with a padlock, symbolizing strong security.

Claude Code 2.1.257 Adds a Containment Escape Rule to Auto Mode

Claude Code 2.1.257 makes Claude Fable 5.1 the default Fable model and adds a Containment Escape rule so auto mode no longer auto-approves cloud metadata-credential fetches, egress evasion, or cross-tenant reach.

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tool

Fable 5.1: 52.6% on Terminal-Bench-Science, Up From 24.7%

Anthropic released Claude Fable 5.1 and Mythos 5.1, claiming a 52.6% score on the new Terminal-Bench-Science 0.1 benchmark, up from 24.7% for Fable 5 and 29.0% for Opus 5.

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mcp

One Schema Change in datasette-mcp 0.2 Fixes a Model's Column Confusion

datasette-mcp 0.2, the first non-alpha release of Simon Willison's Datasette MCP plugin, changes execute_sql to return rows as an array of objects instead of an array of arrays.

Open laptop displaying code on desk in bright, modern office setting. Ideal for tech and remote work context.

trick

OpenAI's Codex App Is Quietly Hiding 1.7GB of Python, Node, and Poppler

OpenAI's Codex desktop app, now rebranded into ChatGPT, bundles a 1.7GB hidden runtime folder containing a full Python installation, a full Node.js installation, and native Poppler and git binaries.