Claude-code v2.1.300 adds virtual text, detailed cache metrics, agent view control, RTL te

EXHIBIT 2055

Oct 14, 2026 18:26 UTC github anthropics/claude-code

Claude-code v2.1.300 adds virtual text, detailed cache metrics, agent view control, RTL text support, advisor tool, GenAI OpenTelemetry attributes, and workflow agent rewriting.

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looks like anthropics' claude-code just dropped v2.1.300 with some interesting new UI controls like virtualText and `$.ui.view({ agentId })` for mods. could make custom UIs way better.

anthropic's latest claude-code release includes more detailed opentelemetry attributes for genai, conversation, and tool names. good for deeper observability and tracing ai interactions.

anthropics/claude-code release: v2.1.300 name: v2.1.300 published: 2026-10-14T18:24:25Z url: https://github.com/anthropics/claude-code/releases/tag/v2.1.300 ## What's changed - Added `virtualText` to a mod's prompt decorations: text drawn in the prompt box that never enters the draft or the submitted prompt - Added `cache_creation_5m_tokens` and `cache_creation_1h_tokens` to the OpenTelemetry `api_request` event, splitting cache writes by lifetime - Added `$.ui.view({ agentId })` for mods: shows an agent's transcript in the main view when you ask, and `$.ui.view({})` goes back - Added a `dir` prop on a mod's `Text` for right-to-left text: on Windows and in VS Code's terminal its rows read in that direction and sit flush right - Added `/advisor` on Claude Platform on AWS; no advisor runs until you pick one with `/advisor`, `advisorModel` or `--advisor`, and `CLAUDE_CODE_DISABLE_ADVISOR_TOOL=1` turns it off - Added OpenTelemetry GenAI semantic-convention attributes to trace spans, such as `gen_ai.provider.name`, `gen_ai.conversation.id`, `gen_ai.tool.name` and `error.type` - Added support for rewriting a workflow agent's `prompt` and `model` in the `agent.spawn` mod hook, which could only refuse workflow agents before - Added the `prompt.change` mod hook, raised when the prompt box's text changes without a typed edit: a recalled history entry, a clear, an undo, or a plugin's fill - Fixed cloud sessions telling Claude that an organization policy blocked a host when the session's own network settings did - Fixed `/autocompact` warning about high token usage when you choose a smaller auto-compact window - Fixed SessionEnd hooks sometimes not running when you exit while a background command is still running - Fixed `claude --help` naming a removed tool in its description of `--restricted` - Fixed `claude agents` not refreshing any pull request's status when the data for one of them came back incomplete - Fixed Claude being told a background agent was lost, not resumable