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  • v1.0.4 d30c8bcc9f

    v1.0.4 Stable

    kerem released this 2025-12-17 08:01:44 +03:00 | 166 commits to main since this release

    📅 Originally published on GitHub: Wed, 17 Dec 2025 05:03:47 GMT
    🏷️ Git tag created: Wed, 17 Dec 2025 05:01:44 GMT

    Improved token counting accuracy with tiktoken fallback, fixed critical tool_calls merging bug for Codex CLI compatibility, and introduced a new flexible debug logging system.

    🐛 Bug Fixes

    • Fixed tool_calls loss during message merging (#5) — When multiple assistant messages with tool_calls were sent consecutively (common in Codex CLI), the second and subsequent tool_calls were being lost during merge. This caused Kiro API to return HTTP 400 with {"message":"Improperly formed request.","reason":null} (in this case: toolResult without corresponding toolUse). Now all tool_calls are properly preserved when merging adjacent assistant messages.

    ✨ New Features

    • New debug logging system with three modes:
      • DEBUG_MODE=off — Disabled (default)
      • DEBUG_MODE=errors — Save logs only for failed requests (4xx, 5xx). Data is buffered in memory and written to files only when an error occurs. Recommended for troubleshooting.
      • DEBUG_MODE=all — Save logs for every request (overwrites on each request)

    ⚡ Improvements

    • Tiktoken fallback for prompt_tokens — When Kiro API doesn't return context_usage percentage, the gateway now uses tiktoken to calculate prompt_tokens from the original request messages and tools. This ensures accurate token usage reporting even when the API response is incomplete.

    • Improved token counting accuracy — The correction coefficient for Claude models is now applied more precisely: only to completion_tokens (output), not to prompt_tokens calculated via fallback.

    🗑️ Deprecated

    • DEBUG_LAST_REQUEST — This environment variable is deprecated and will be removed in future releases. Use DEBUG_MODE=errors or DEBUG_MODE=all instead. A warning will be shown at startup if you're still using the old option.

    ⚙️ Configuration

    Variable Values Default Description
    DEBUG_MODE off, errors, all off Debug logging mode

    🔄 Upgrade

    After downloading and extracting the new release, no additional steps are required. The new debug logging system is disabled by default.

    If you were using DEBUG_LAST_REQUEST=true, consider switching to DEBUG_MODE=errors for more efficient debugging (logs only failed requests).

    Full Changelog: https://github.com/jwadow/kiro-openai-gateway/compare/v1.0.3...v1.0.4

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