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Evidence record / claude-code

A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.

2026-10-13-claude-code-self-hosted-runners-pass-prompts-as-files-and-wrappers-must-use-file-flags

Self-hosted runners pass prompts as files and wrappers must use file flags. A large runner system prompt can now launch without depending on command-line argument length. The private-file delivery changes the contract for wrappers and command hooks that add prompt text.

Channel: tagged-release (on stable). Half: both. Date: 2026-09-23 (2.1.281).

Operator consequence: Change runner integrations to --system-prompt-file and --append-system-prompt-file, with prompt text in the referenced file. Check wrapper and hook paths before updating runner images. The launch improvement and adapter change are on stable.

Receipt

Finding metadata

Confidence
high

Run: 2026-10-13-profile-refresh-2026-09-21_2026-10-13-frontier-v0

Finding ID: 2026-10-13-claude-code-self-hosted-runners-pass-prompts-as-files-and-wrappers-must-use-file-flags

Profile citations

Source links

Primary links, including exact changelog lines when available.

  1. Claude Code
    tagged commit file2026-10-13-claude-code-self-hosted-runners-pass-prompts-as-files-and-wrappers-must-use-file-flagsanthropics/claude-code / CHANGELOG.md#L1479github release2026-10-13-claude-code-self-hosted-runners-pass-prompts-as-files-and-wrappers-must-use-file-flagsanthropics/claude-code / v2.1.281

Versioned source: run artifact