dsh-web-speech-input

dsh-web-speech-input

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A microphone button for the DeepSeek Harness Web composer. It uses the browser's Web Speech API to turn live speech into editable prompt text, including interim results while you speak.

Features

• One-click start and stop from the conversation composer.
• Writes interim and final recognition results into the existing draft; it never submits a prompt automatically.
• Uses the page language, then the browser language, with zh-CN as the fallback.
• Clear listening, unsupported-browser, permission, microphone, and network states.
• Keyboard focus, ARIA labels, and reduced-motion support.
• Cleans up microphone recognition and injected styles when the plugin unloads.

Requirements

• DeepSeek Harness Web profile 0.1.0-rc.5 or a compatible developer-preview build.
• A browser implementing SpeechRecognition or webkitSpeechRecognition.
• Microphone permission for the Harness Web origin.

Browser support and recognition behavior vary. Chromium-based browsers currently provide the broadest compatibility; availability is not guaranteed by this plugin.

Install

dsh plugin --profile web add github:leozou320-ai/dsh-web-speech-input

Restart dsh web, then use the microphone button on the left side of the prompt composer. To remove it:

dsh plugin --profile web remove dsh-web-speech-input

How it works

1. Click the microphone button.
2. Grant microphone access if the browser asks.
3. Speak; interim text appears in the current draft.
4. Click stop, review or edit the draft, and submit it yourself.

The plugin never clicks Send and never calls a DeepSeek API directly.

Permissions and privacy

• The plugin requests microphone access only after you click its button.
• Audio is handled by the browser's speech-recognition implementation. Depending on the browser and operating system, recognition may use a remote vendor service and may not work offline.
• The plugin itself has no server component, stores no audio, and sends no network requests.
• Recognized text is inserted into the draft. It reaches the configured model provider only if you submit that prompt.
• Check your browser vendor's speech-recognition privacy terms before using confidential speech.

Known limitations

• Firefox does not currently expose a compatible API in normal releases.
• Corporate policies, insecure origins, browser settings, or denied permissions can disable microphone recognition.
• Some browsers end continuous recognition after a pause; click the button again to resume.
• Recognition quality, punctuation, supported languages, and whether processing is local depend on the browser/OS service.
• The plugin targets the current Web UI slot API, which may change during the Harness developer preview.

Troubleshooting

• Button disabled: use a browser with Web Speech API support.
• Permission denied: allow microphone access for the Harness origin in browser site settings, then reload.
• Network error: the browser's recognition service may require internet access even though this plugin has no backend.
• No text appears: verify that the active input draft is editable and that the browser detected the intended microphone.

Development

node --check host.mjs
node --check client.js
node --test
npm pack --dry-run

For a local install test:

dsh plugin --profile web add ./path/to/dsh-web-speech-input

License

MIT