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Merge remote-tracking branch 'origin/main' into feature/status-line-customization
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@ -169,6 +169,18 @@ Settings are organized into categories. All settings should be placed within the
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}
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```
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**max_tokens (adaptive output tokens):**
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When `samplingParams.max_tokens` is not set, Qwen Code uses an adaptive output token strategy to optimize GPU resource usage:
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1. Requests start with a default limit of **8K** output tokens
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2. If the response is truncated (the model hits the limit), Qwen Code automatically retries with **64K** tokens
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3. The partial output is discarded and replaced with the full response from the retry
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This is transparent to users — you may briefly see a retry indicator if escalation occurs. Since 99% of responses are under 5K tokens, the retry happens rarely (<1% of requests).
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To override this behavior, either set `samplingParams.max_tokens` in your settings or use the `QWEN_CODE_MAX_OUTPUT_TOKENS` environment variable.
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**contextWindowSize:**
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Overrides the default context window size for the selected model. Qwen Code determines the context window using built-in defaults based on model name matching, with a constant fallback value. Use this setting when a provider's effective context limit differs from Qwen Code's default. This value defines the model's assumed maximum context capacity, not a per-request token limit.
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@ -207,6 +219,7 @@ The `extra_body` field allows you to add custom parameters to the request body s
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| `context.fileFiltering.respectQwenIgnore` | boolean | Respect .qwenignore files when searching. | `true` |
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| `context.fileFiltering.enableRecursiveFileSearch` | boolean | Whether to enable searching recursively for filenames under the current tree when completing `@` prefixes in the prompt. | `true` |
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| `context.fileFiltering.enableFuzzySearch` | boolean | When `true`, enables fuzzy search capabilities when searching for files. Set to `false` to improve performance on projects with a large number of files. | `true` |
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| `context.gapThresholdMinutes` | number | Minutes of inactivity after which retained thinking blocks are cleared to free context tokens. Aligns with typical provider prompt-cache TTL. Set higher if your provider has a longer cache TTL. | `5` |
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#### Troubleshooting File Search Performance
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@ -491,22 +504,23 @@ For authentication-related variables (like `OPENAI_*`) and the recommended `.qwe
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### Environment Variables Table
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| Variable | Description | Notes |
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| ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `QWEN_TELEMETRY_ENABLED` | Set to `true` or `1` to enable telemetry. Any other value is treated as disabling it. | Overrides the `telemetry.enabled` setting. |
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| `QWEN_TELEMETRY_TARGET` | Sets the telemetry target (`local` or `gcp`). | Overrides the `telemetry.target` setting. |
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| `QWEN_TELEMETRY_OTLP_ENDPOINT` | Sets the OTLP endpoint for telemetry. | Overrides the `telemetry.otlpEndpoint` setting. |
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| `QWEN_TELEMETRY_OTLP_PROTOCOL` | Sets the OTLP protocol (`grpc` or `http`). | Overrides the `telemetry.otlpProtocol` setting. |
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| `QWEN_TELEMETRY_LOG_PROMPTS` | Set to `true` or `1` to enable or disable logging of user prompts. Any other value is treated as disabling it. | Overrides the `telemetry.logPrompts` setting. |
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| `QWEN_TELEMETRY_OUTFILE` | Sets the file path to write telemetry to when the target is `local`. | Overrides the `telemetry.outfile` setting. |
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| `QWEN_TELEMETRY_USE_COLLECTOR` | Set to `true` or `1` to enable or disable using an external OTLP collector. Any other value is treated as disabling it. | Overrides the `telemetry.useCollector` setting. |
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| `QWEN_SANDBOX` | Alternative to the `sandbox` setting in `settings.json`. | Accepts `true`, `false`, `docker`, `podman`, or a custom command string. |
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| `SEATBELT_PROFILE` | (macOS specific) Switches the Seatbelt (`sandbox-exec`) profile on macOS. | `permissive-open`: (Default) Restricts writes to the project folder (and a few other folders, see `packages/cli/src/utils/sandbox-macos-permissive-open.sb`) but allows other operations. `strict`: Uses a strict profile that declines operations by default. `<profile_name>`: Uses a custom profile. To define a custom profile, create a file named `sandbox-macos-<profile_name>.sb` in your project's `.qwen/` directory (e.g., `my-project/.qwen/sandbox-macos-custom.sb`). |
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| `DEBUG` or `DEBUG_MODE` | (often used by underlying libraries or the CLI itself) Set to `true` or `1` to enable verbose debug logging, which can be helpful for troubleshooting. | **Note:** These variables are automatically excluded from project `.env` files by default to prevent interference with the CLI behavior. Use `.qwen/.env` files if you need to set these for Qwen Code specifically. |
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| `NO_COLOR` | Set to any value to disable all color output in the CLI. | |
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| `CLI_TITLE` | Set to a string to customize the title of the CLI. | |
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| `CODE_ASSIST_ENDPOINT` | Specifies the endpoint for the code assist server. | This is useful for development and testing. |
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| `TAVILY_API_KEY` | Your API key for the Tavily web search service. | Used to enable the `web_search` tool functionality. Example: `export TAVILY_API_KEY="tvly-your-api-key-here"` |
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| Variable | Description | Notes |
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| ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| `QWEN_TELEMETRY_ENABLED` | Set to `true` or `1` to enable telemetry. Any other value is treated as disabling it. | Overrides the `telemetry.enabled` setting. |
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| `QWEN_TELEMETRY_TARGET` | Sets the telemetry target (`local` or `gcp`). | Overrides the `telemetry.target` setting. |
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| `QWEN_TELEMETRY_OTLP_ENDPOINT` | Sets the OTLP endpoint for telemetry. | Overrides the `telemetry.otlpEndpoint` setting. |
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| `QWEN_TELEMETRY_OTLP_PROTOCOL` | Sets the OTLP protocol (`grpc` or `http`). | Overrides the `telemetry.otlpProtocol` setting. |
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| `QWEN_TELEMETRY_LOG_PROMPTS` | Set to `true` or `1` to enable or disable logging of user prompts. Any other value is treated as disabling it. | Overrides the `telemetry.logPrompts` setting. |
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| `QWEN_TELEMETRY_OUTFILE` | Sets the file path to write telemetry to when the target is `local`. | Overrides the `telemetry.outfile` setting. |
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| `QWEN_TELEMETRY_USE_COLLECTOR` | Set to `true` or `1` to enable or disable using an external OTLP collector. Any other value is treated as disabling it. | Overrides the `telemetry.useCollector` setting. |
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| `QWEN_SANDBOX` | Alternative to the `sandbox` setting in `settings.json`. | Accepts `true`, `false`, `docker`, `podman`, or a custom command string. |
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| `SEATBELT_PROFILE` | (macOS specific) Switches the Seatbelt (`sandbox-exec`) profile on macOS. | `permissive-open`: (Default) Restricts writes to the project folder (and a few other folders, see `packages/cli/src/utils/sandbox-macos-permissive-open.sb`) but allows other operations. `strict`: Uses a strict profile that declines operations by default. `<profile_name>`: Uses a custom profile. To define a custom profile, create a file named `sandbox-macos-<profile_name>.sb` in your project's `.qwen/` directory (e.g., `my-project/.qwen/sandbox-macos-custom.sb`). |
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| `DEBUG` or `DEBUG_MODE` | (often used by underlying libraries or the CLI itself) Set to `true` or `1` to enable verbose debug logging, which can be helpful for troubleshooting. | **Note:** These variables are automatically excluded from project `.env` files by default to prevent interference with the CLI behavior. Use `.qwen/.env` files if you need to set these for Qwen Code specifically. |
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| `NO_COLOR` | Set to any value to disable all color output in the CLI. | |
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| `CLI_TITLE` | Set to a string to customize the title of the CLI. | |
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| `CODE_ASSIST_ENDPOINT` | Specifies the endpoint for the code assist server. | This is useful for development and testing. |
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| `QWEN_CODE_MAX_OUTPUT_TOKENS` | Overrides the default maximum output tokens per response. When not set, Qwen Code uses an adaptive strategy: starts with 8K tokens and automatically retries with 64K if the response is truncated. Set this to a specific value (e.g., `16000`) to use a fixed limit instead. | Takes precedence over the capped default (8K) but is overridden by `samplingParams.max_tokens` in settings. Disables automatic escalation when set. Example: `export QWEN_CODE_MAX_OUTPUT_TOKENS=16000` |
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| `TAVILY_API_KEY` | Your API key for the Tavily web search service. | Used to enable the `web_search` tool functionality. Example: `export TAVILY_API_KEY="tvly-your-api-key-here"` |
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## Command-Line Arguments
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