{"name":"CLAUDE_CODE_RESULT_NONCE","slug":"claude-code-result-nonce","family":"env","title":"Environment variables","noun":"environment variable","description":"Claude Code now reads `CLAUDE_CODE_RESULT_NONCE` once at startup, keeps it, and removes it from the environment","description_source":"entry","described_by":{"version":"2.1.285","anchor":"new-claude-code-result-nonce-env-var-read-once-and-then-unse"},"presence":{"first_seen":"2.1.285","removed_in":null,"in_current_build":true,"newest_mined":"2.1.285","builds":1,"mined_builds":128,"first_cited":{"version":"2.1.285","released_at":"2026-09-29 17:32:09","spans":2}},"aliases":[],"entries":[{"version":"2.1.285","anchor":"new-claude-code-result-nonce-env-var-read-once-and-then-unse","heading":"New internal variable read once and then cleared from the environment","line":"Claude Code now reads `CLAUDE_CODE_RESULT_NONCE` once at startup, keeps it, and removes it from the environment","released_at":"2026-09-29 17:32:09","reason":"found in this entry's text, named in this entry"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"CLAUDE_CODE_3P_PROBE_WROTE_HAIKU_DEFAULT","slug":"claude-code-3p-probe-wrote-haiku-default","description":"If your cloud account cannot use a model, Claude Code can step down to the next one; `CLAUDE_CODE_DISABLE_MODEL_ACCESS_FALLBACK` turns this off"},{"name":"CLAUDE_CODE_3P_PROBE_WROTE_OPUS_DEFAULT","slug":"claude-code-3p-probe-wrote-opus-default","description":null},{"name":"CLAUDE_CODE_3P_PROBE_WROTE_SONNET_DEFAULT","slug":"claude-code-3p-probe-wrote-sonnet-default","description":null},{"name":"CLAUDE_CODE_3P_SEEDED_OPUS_DEFAULT","slug":"claude-code-3p-seeded-opus-default","description":"If your cloud account cannot use a model, Claude Code can step down to the next one; `CLAUDE_CODE_DISABLE_MODEL_ACCESS_FALLBACK` turns this off"},{"name":"CLAUDE_CODE_3P_SEEDED_SONNET_DEFAULT","slug":"claude-code-3p-seeded-sonnet-default","description":"If your cloud account cannot use a model, Claude Code can step down to the next one; `CLAUDE_CODE_DISABLE_MODEL_ACCESS_FALLBACK` turns this off"},{"name":"CLAUDE_CODE_ACCESSIBILITY","slug":"claude-code-accessibility","description":"Set to `1` to keep the native terminal cursor visible and disable the inverted-text cursor indicator. Allows screen magnifiers like macOS Zoom to track cursor position"},{"name":"CLAUDE_CODE_ACCOUNT_TAGGED_ID","slug":"claude-code-account-tagged-id","description":null},{"name":"CLAUDE_CODE_ACCOUNT_UUID","slug":"claude-code-account-uuid","description":"The device bridge is skipped entirely when the host's account UUID doesn't match the stored one."},{"name":"CLAUDE_CODE_ACT_DONT_REDERIVE","slug":"claude-code-act-dont-rederive","description":"Three existing feature gates moved position; their defaults are unchanged."},{"name":"CLAUDE_CODE_ACTION","slug":"claude-code-action","description":null}],"url":"https:\/\/changelogs.core-directive.com\/reference\/env\/claude-code-result-nonce","family_url":"https:\/\/changelogs.core-directive.com\/reference\/env.json"}