fix(anthropic): OAuth identity rewrite corrupted .clawcodex paths into ~/.Claude Code#710
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…codex paths _prepare_subscription_request's clean() rewrote EVERY case-insensitive "clawcodex" in the system prompt to "Claude Code" — including filesystem paths. On Claude-subscription logins the model was told its memory lives at ~/.Claude Code/projects/<slug>/memory and its history at ~/.Claude Code/sessions — literal nonexistent locations it then searched verbatim. This is the real source of the "guessed wrong paths" #706/#707 addressed: those fixes emit correct paths, and this rewrite corrupted them after prompt assembly, at the provider layer. Constrain the rewrite to standalone brand mentions: matches inside path segments (~/.clawcodex, /etc/clawcodex), env vars ($CLAWCODEX_CONFIG_DIR), module/file names (clawcodex_dirs), and domains (clawcodex.app) survive verbatim. Prose disguise and the official-prefix block are unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Root cause of the errors #706 / #707 didn't fully fix
The trace that motivated those PRs — the model searching
/Users/…/.Claude Code/projects/<slug>/memoryand/Users/…/.Claude Code/sessions— was not model guessing. On Claude-subscription OAuth logins,AnthropicProvider._prepare_subscription_request()runsover every system block at request time. That rewrites filesystem paths too:
~/.clawcodex/sessions/→~/.Claude Code/sessions/. So the corrected paths #706/#707 added (and the auto-memory section) reached the model already corrupted — the prompt authoritatively named nonexistent locations, and the model obediently searched them. Reproduced byte-for-byte: running the shippedclean()over the real assembled prompt produces exactly the paths from the failure trace.This only bites subscription logins (
api_keyempty +anthropic-oauth.jsonpresent), which is why prompt-assembly-level reproductions looked correct — the corruption happens in the provider layer, after assembly. It also explains #706's original "pure guessing" misdiagnosis.Fix
Constrain the disguise to standalone brand mentions. Matches that are part of a machine-readable token survive verbatim:
~/.clawcodex/…,/etc/clawcodex,.clawcodex/settings.json$CLAWCODEX_CONFIG_DIR/CLAWCODEX_CONFIG_DIRclawcodex_dirs.pyclawcodex.appStandalone prose (
clawcodex data directory:,run clawcodex.,clawcodex, the tool) is still rewritten, and the officialYou are Claude Code…prefix block is unchanged, so the OAuth-endpoint conventions are preserved.Tests
test_identity_rewrite_preserves_paths_env_vars_and_domains— real-world strings from the assembled prompt (memory path, sessions Grep line, fix(prompt): name ~/.clawcodex in # Environment so the model finds session history #706 data-dir line, env var, domain, prose); asserts paths survive,.Claude Codenever appears, prose is still disguised, prefix block stays first.test_provider_uses_bearer_oauth_and_adapts_tools(assertsClawCodexprose is disguised) still passes.test_anthropic_subscription/test_prompt_assembly/test_live_base_system_prompt/test_clawcodex_dirs; 72 green acrosstest_model_system/test_openai_subscription(that path passesinstructionsthrough untouched — no analogous bug)._prepare_subscription_request— memory/sessions/data-dir paths intact, no.Claude Code, brand prose disguised.🤖 Generated with Claude Code