New strings in Anthropic's Claude Code binary hint at internal features like session event

EXHIBIT 2058 · URGENT

Oct 14, 2026 18:43 UTC binary @anthropic-ai/claude-code-darwin-arm64

New strings in Anthropic's Claude Code binary hint at internal features like session event handling, self-hosted session hosts, and the ability to turn off model thinking, alongside a new internal model ID.

READY TO POST:

anthropic's claude code got a binary update with a ton of new internal strings. looks like they're working on self-hosted sessions and maybe even a 'turn off thinking' feature for models?

a new anthropic claude code binary has some interesting internal flags, including a new model ID. also seeing references to 'beta.sessions.events.send' which could be for better session management.

⚠️ FROM COMPILED BINARY — lower confidence, verify before posting. (May include bundled-dependency strings, not just first-party changes.) @anthropic-ai/claude-code-darwin-arm64 2.1.299 -> 2.1.300: +15017 strings, -13205 strings, 36 interesting [model_id] (1) + /$bunfs/root/claude-code.d.ts-7e7b76be.txt.zst [feature_flag] (21) + --internal + <${YF}>No completion record was found for them in the previous session. ${w} Task ids in this notification beginning with "${ze}" are internal scan markers, not tasks.</${YF}> + @internal Number of pages in the document. Set only when the call named no page range and the PDF was too long to read whole, so only its first pages were extractedE + @internal On a hand-back: the note the harness composed above the frame line in `body`, without the indent. On a blocked report it quotes the review's reason, which can quote the report, so show it as untrusted text. Absent when there is no note. + @internal On a hand-back: the subagent's report as the model reads it, under the frame line in `body`, without the indent. Draw it as a separate element from `handbackNote`: the two fields are their only boundary. Absent wherever `body` is and on a message that is not a hand-back. + @internal On a prompt that joins several queued messages from this sender: the joined messages in the order the model reads them, each with its own `body`. The origin's `body` is then absent. Absent on a message that was not joined and when any joined message had no `body`. + @internal Present ('mcp-task') only on a notification that an MCP server's own task has ended, and not on every one. Narrower than task_type 'mcp_task', which also covers an MCP tool call moved to the background. + @internal The mode is the default of the creating person's settings, not a choice of the launch.5 + @internal Whether thinking can be turned off for this model + HTTPS endpoint of the self-hosted session host (beta). + Set it in the runner container's enviro