Captured and compared outgoing requests from CLIProxyAPI against real
Claude Code 2.1.63 and fixed all detectable differences:
Headers:
- Update anthropic-beta to match 2.1.63: replace fine-grained-tool-streaming
and prompt-caching-2024-07-31 with context-management-2025-06-27 and
prompt-caching-scope-2026-01-05
- Remove X-Stainless-Helper-Method header (real Claude Code does not send it)
- Update default User-Agent from "claude-cli/2.1.44 (external, sdk-cli)" to
"claude-cli/2.1.63 (external, cli)"
- Force Claude Code User-Agent for non-Claude clients to avoid leaking
real client identity (e.g. curl, OpenAI SDKs) during cloaking
Body:
- Inject x-anthropic-billing-header as system[0] (matches real format)
- Change system prompt identifier from "You are Claude Code..." to
"You are a Claude agent, built on Anthropic's Claude Agent SDK."
- Add cache_control with ttl:"1h" to match real request format
- Fix user_id format: user_[64hex]_account_[uuid]_session_[uuid]
(was missing account UUID)
- Disable tool name prefix (set claudeToolPrefix to empty string)
TLS:
- Switch utls fingerprint from HelloFirefox_Auto to HelloChrome_Auto
(closer to Node.js/OpenSSL used by real Claude Code)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add IAM Identity Center (IDC) authentication with CLI flags (--kiro-idc-login, --kiro-idc-start-url, --kiro-idc-region) and login flow
- Add ProfileArn auto-fetching in Execute/ExecuteStream for imported IDC accounts
- Simplify endpoint preference with map-based alias lookup and getAuthValue helper
- Redesign fingerprint as global singleton with external config and per-account deterministic generation
- Add StartURL and FingerprintConfig fields to Kiro config
- Add AgentContinuationID/AgentTaskType support in Kiro translators
- Add comprehensive tests for executor, fingerprint, SSO OIDC, and AWS helpers
- Add CLI login documentation to README
- Add 'github-user' fallback in WaitForAuthorization when FetchUserInfo
returns empty Login (fixes malformed 'github-copilot-.json' filenames)
- Standardize Web API file name to 'github-copilot-<user>.json' to match
CLI path convention (was 'github-<user>.json')
Addresses Gemini Code Assist review comments on PR #291.
- Expand OAuth scope to include read:user for full profile access
- Add GitHubUserInfo struct with Login, Email, Name fields
- Update FetchUserInfo to return complete user profile
- Add Email and Name fields to CopilotTokenStorage and CopilotAuthBundle
- Fix provider string bug: 'github' -> 'github-copilot' in auth_files.go
- Fix semantic bug: email field was storing username
- Update Label to prefer email over username in both CLI and Web API paths
- Add 9 unit tests covering new functionality
- Change RequiredFieldsByTool value type from []string to [][]string
- Outer slice = AND (all groups required); inner slice = OR (any one satisfies)
- Fix Bash entry to accept "cmd" or "command", resolving soft-truncation loop
- Update findMissingRequiredFields logic and inline docs accordingly
Guard the openai-response streaming path against truncated/invalid SSE data payloads by validating data: JSON before forwarding; surface a 502 terminal error instead of letting clients crash with JSON parse errors.
