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feat: identity hardening modelled on sub2api - #18

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Alumos merged 2 commits into
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feat/identity-hardening
Nov 12, 2026
Merged

Alumos merged 2 commits into
mainfrom
feat/identity-hardening

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@Alumos

@Alumos Alumos commented Nov 12, 2026

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Implements the four fingerprint gaps found by comparing CLIProxyAPI and sub2api, plus sub2api's risk-control mitigations:

  1. Looser Codex platform learning (os_info free-text versions, TERM fallback).
  2. Canonical default Codex platform; originator/UA/version always consistent.
  3. Opt-in Codex identifier convergence (off/device/session/full, default off) across all carriers.
  4. Opt-in Claude Code TLS fingerprint (uTLS, Node.js 24 ClientHello, JA3 verified by a local test), incl. HTTP/SOCKS5 proxies.
  5. In-stream server_is_overloaded/slow_down → retryable 503.

Tests run in CI. Real-account effectiveness must be verified by canary.

🤖 Generated with Claude Code

Alumos and others added 2 commits November 12, 2026 23:20
- Codex: learn free-text os_info platforms, present the canonical platform
  before a native client is seen, forward native identity headers and keep
  session identifiers consistent across headers, turn metadata,
  client_metadata and prompt_cache_key.
- Codex: opt-in per-account identifier convergence (device, session, full)
  from a rotatable seed (migration 039).
- Codex: turn in-stream server_is_overloaded and slow_down into retryable
  503 responses before anything reaches the client.
- Claude: opt-in Claude Code (Node.js 24) TLS ClientHello via uTLS, also
  through HTTP and SOCKS5 proxies.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Peek at most 100 ms for an in-stream overload rejection so slow streams
  keep keepalive and idle-timeout behavior (fixes hanging server tests).
- Codex accounts converge identifiers in session mode by default, seeding
  existing accounts in migration 039 and new ones on first use; session
  mode keeps one prompt cache key per real conversation.
- Dial the TLS fingerprint test by name so SNI is sent.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@Alumos
Alumos merged commit 151e0f1 into main Nov 12, 2026
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@Alumos
Alumos deleted the feat/identity-hardening branch November 12, 2026 15:52
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