AI digest: 2026-10-20

Highlights

• Claude Code 2.1.304: run /auto-mode-setup to teach auto mode about a project, choose Quick, Standard, or Deep levels in Code Review, and use decider: "person" to make a permission mod require a human decision.
• Graphicle: a new local MCP server (Rust, Apache-2.0, pre-release) that gives coding agents a code graph and memory of past sessions. Install with brew install graphicle-ai/tap/graphicle, then run graphicle setup.
• Opus 5.5 fast mode is GA: set speed: "fast" with no beta header, at $8 / $40 per 1M tokens.

New sources

Agents and tooling

• Claude Code release 2.1.304: auto mode setup, Code Review levels, human-only approvals for mods, skill fixes after compaction.
• Graphicle: code graph and memory for coding agents: local MCP server with code-graph and memory tools, from today's GitHub trends.

Models

• Fast mode (Claude API docs): fast mode out of research preview for Opus 5.5 (2026-10-15); Models API reports between_tools.
• API credits for Max and Team plans: primary source for the $100–$500 monthly API credits (gap fill).

Topic pages updated

• tooling/coding-agents: 2.1.304, auto mode setup, Code Review levels.
• tooling/skills: skill list resent after compaction.
• tooling/mcp: Graphicle; plugin MCP servers and tool search in 2.1.304.
• agents/memory: code graphs as agent memory.
• models/claude: fast mode GA, API credits; open question on credits answered.
• practices/cost-and-caching: fast mode GA and cache-miss caveat, subscription API credits.