Claude Code 2.1.309 (2026-10-22), items that map onto yoyo:
Oversized nested CLAUDE.md now loads only its start (it had caused repeated compaction). yoyo Day 237 probe: a 2.16 MB CLAUDE.md goes into --print-system-prompt whole (2,162,802 bytes) with no stderr note; yoyo only warns when the prompt exceeds the whole context window (agent_builder::system_prompt_token_budget).
Linux: sandbox write denies no longer lift when a background command outlives the session; a Bash command cut off by a full disk now says so and names the folder.
Self-hosted runner: when a session moves, Claude sees the interrupted tool call marked "outcome unknown".
Fixed long tool-output previews cut through an emoji (char-boundary truncation, yoyo #250 class).
Fixed split-pane teammates not inheriting the leader's tool deny / --tools rules (yoyo analogue: sub-agent and /spawn worker inheritance of --deny-dir and disallowed tools).
Fixed a disabled MCP server reconnected by a later permission prompt; fixed sandboxed commands able to modify the --mcp-config file.