Playground

Release Notes

Release 2025-07-09 (1.9.46)

Features

  • TTS Enhancements:
    • Added Inworld TTS support - platform now supports Inworld's text-to-speech capabilities with advanced speech modification features
    • Enhanced speech expressiveness through inline tags for emotions, actions, and vocal effects
  • Voice Activity Detection (VAD) Enhancements:
    • Added vad: "asap_v2" support - detects end of voice much faster than previous versions, but may have false positives in the middle of sentences
  • Playground Enhancements:
    • Inspector: Improved accuracy of start of voice and end of voice view for better conversation analysis
  • DSL Language Enhancements:
    • Added findIndex function for arrays - returns the index of the first element that matches the specified value, or -1 if no element matches
    • Supports deep equality comparison for objects to determine element matching
    • Full documentation available here
    • Added merge function for objects - performs a shallow merge of two objects, combining their properties at the top level only
    • Added deepMerge function for objects - performs a deep merge of two objects, combining their properties recursively with nested object merging
    • Full documentation available here

Configuration Examples

Inworld TTS Voice Configuration Example:

{
    "speed": 1,
    "speaker": "Inworld/inworld-tts-1/Alex",
    "lang": "en-US",
    "options": {
        "temperature": 0.8,
        "pitch": 0
    }
}

Inworld TTS Speech Modification Example (Prompt):

Insert in the text following tags in each sentence:
In the start of sentence:
[happy], [sad], [angry], [surprised], [fearful], [disgusted]
[laughing], [whispering]
In any part of sentence
[breathe], [clear_throat], [cough], [laugh], [sigh], [yawn]

To make conversation more natural. Avoid newlines after the tag in [].

Release 2025-06-18 (1.9.40)

Features

  • GPT Function Access Control:
    • Added provided_scopes option to control which functions are available to GPT by specifying allowed scopes. Functions can now be organized into logical groups using @scope tag in JavaDoc comments
    • Added except_functions option to explicitly exclude specific functions from being available to GPT, with highest priority over other inclusion rules
    • Enhanced function filtering system with clear priority: scopes → provided_functions → except_functions
    • Full documentation available here
  • LLM Interruption Handling:
    • Enhanced interruption handling system with comprehensive documentation and best practices
    • Added sophisticated silence management with keep_silence() function for preventing interruptions during user dictation
    • Implemented smart wait request handling with handle_wait_request() function for managing user pause requests
    • Improved smart interruption logic that analyzes conversation context to determine appropriate responses
    • Added automatic hello ping disabling during wait periods to prevent unwanted interruptions
    • Full documentation available here
  • OpenAI GPT Enhancements:
    • Added seed parameter support for deterministic sampling - when specified, repeated requests with the same seed and parameters should return more consistent results
    • Added service_tier parameter support for controlling OpenAI latency tiers - allows customers to specify processing tiers including 'auto' (default), 'default', and 'flex' for scale tier subscribers
    • Added support for openrouter/ model prefix - users can now access OpenRouter models by prefixing model names with "openrouter/" (e.g., "openrouter/anthropic/claude-3-sonnet")
    • Added openrouter_models parameter for model routing - allows automatic fallback to alternative models if the primary model is unavailable or rate-limited
    • Added openrouter_provider parameter for provider routing - enables fine-grained control over provider selection, load balancing, and routing preferences (JSON object as string)
  • Playground Enhancements:
    • Added groups management functionality - users can now share limits between applications by organizing them into groups in the Playground Groups interface
  • DSL Language Enhancements:
    • Added tone event support for when constructions - allows immediate reaction when a tone in Hz is received as specified in #connect or #connectSafe call
  • Node.js SDK Updates:
    • @dasha.ai/sdk v0.11.5:
      • Added support for scopes in dynamic tools - developers can now assign scopes to SDK-provided functions for better access control

Bug Fixes

  • HTTP Request Improvements:
    • Fixed httpRequest function behavior when users hang up - HTTP requests will no longer be interrupted and return null when a user disconnects during the request execution

Release 2025-05-19 (1.9.37)

Features

  • Inspector Enhancements:
    • Added information about who closed the call (human or AI) to the Inspector tool
  • Transcript Improvements:
    • Added allow_incomplete option (true or false) to getTranscription, getFormattedTranscription, askGPT and answerWithGPT functions - allows viewing text that is currently being spoken by the human
    • Added include_system_messages option to control visibility of system messages in transcription (default value: true)
  • DSL Type System Improvements:
    • Fixed functions for types built in DSL (allowing calls of functions for other types)
  • History Management:

Release 2025-05-12 (1.9.35)

Features

  • JSON Schema Structured Output Support:
    • Added support for structured output using JSON Schema in GPT responses
    • Control response format precisely using schema definitions
    • Enforce strict typing and validation with the strict option
    • Full documentation available here
  • Speech Recognition Enhancements:
    • Enhanced getDetectedLanguage function - now returns the text on which language was detected
  • Node.js SDK Updates:
    • @dasha.ai/sdk v0.11.3:
      • Added ability to pass only function descriptions without handlers for JSON Schema overriding, with implementation handled on the DSL side

Configuration Examples

JSON Schema Structured Output Example:

var schema = {
  name: "result",
  strict: true,
  description: "The result of the AMD detection",
  schema: {
    @type: "object",
    properties: {
      result: {
        @type: "string",
        description: "The result of the AMD detection",
        enum: ["Human", "IVR", "AMD", "Voicemail"]
      }
    },
    additionalProperties: false,
    required: ["result"]
  }
}.toString();

var ask = #askGPT($amdPrompt, {
  model: "openai/gpt-4.1-nano",
  function_call: "none",
  history_length: 0,
  save_response_in_history: false,
  response_format: schema
},
promptName: "ivr_capturer");
var response = (ask.responseText.parseJSON() as { result: string; })?.result ?? "Human";

Release 2025-04-24 (1.9.32)

Features

  • QoL LLM features:
    • Added option include_tool_calls to getTranscription and getFormattedTranscription built-in functions. This option is disabled by default.
    • Added option use_dynamic_tools (boolean type) to gptOptions in answerWithGPT/askGPT built-in functions. This option is enabled by default.
    • Added built-in function getAvailableTools
  • Node.js SDK Updates:
    • @dasha.ai/sdk v0.11.2:
      • Added ability to provide custom JavaScript functions to the conversation context, enabling seamless integration between Dasha Script and Node.js code
      • Functions defined in the SDK can now be called directly from Dasha Script, allowing for more powerful application logic and external system integrations
      • Support for complex data types as parameters and return values for enhanced data handling
      • SDK Events support with new documentation on sending events from the Node.js SDK to DashaScript and handling them with when SDKEvent or onSDKEvent digressions

Configuration Examples

SDK Function Integration Example:

import { Type } from "@sinclair/typebox";


app.queue.on("ready", async (id, conv, info) => {
    // Register a dynamic tool that GPT can call during the conversation
    await conv.setDynamicTool({
      // Function name that GPT will use to call this tool
      name: "getFruitPrice",
      // Clear description of what the function does - this helps GPT understand when to use it
      description: 'Returns the price of a fruit based on its name and optional quantity',
      // Schema definition using TypeBox to define parameters and their types
      schema: Type.Object({
        name: Type.String({ description: "Name of the fruit"}),
        count: Type.Optional(Type.Number({ description: "Count of the fruits, defaults to 1 if not provided"}))
      })
    }, async (args, conv) => {
      // Implementation of the function - this code runs when GPT calls getFruitPrice
      console.log(`getFruitPrice called with args: ${JSON.stringify(args)}`);
      if (args.name === "apple") {
        return 3.25 * (args.count ?? 1);
      }
      if (args.name === "orange") {
        return 6 * (args.count ?? 1);
      }

      return "No such fruit";
    });

    const result = await conv.execute();
}

Release 2025-04-18 (1.9.31)

Features

  • Parse JSON function to string type
  • LLM Support:
    • Added support for the model openai/o4-mini and for openai/gpt-4.1, openai/gpt-4.1-mini, openai/gpt-4.1-nano
  • Interrupt Enhancements:
    • Enhanced interrupt behavior by intent for the #answerWithGPT function. The function can now be interrupted before it begins speaking

Release 2025-04-04 (1.9.28)

Features

  • ElevenLabs Enhancements:
    • Added seed parameter to options (uint32 value in range 0..4294967295) - If specified, our system will make a best effort to sample deterministically, such that repeated requests with the same seed and parameters should return the same result. Determinism is not guaranteed.
  • LLM Support:
    • Added support for reasoning models like openai/o3-mini
    • Added option reasoning_effort with values low, medium, high for reasoning models
  • TTS Enhancements:
    • Added parameter to options "normalize_first": 1 to apply streaming volume normalization

Configuration Examples

ElevenLabs Configuration with Seed Example:

{
    "speaker": "ElevenLabs/eleven_flash_v2_5/cgSgspJ2msm6clMCkdW9",
    "lang": "en-US",
    "options": {
        "similarity_boost": 0.75,
        "stability": 0.5,
        "use_speaker_boost": true,
        "seed": 42,
        "normalize_first": 1
    }
}

Reasoning Model Configuration Example:

#answerWithGPT($prompt, 
gptOptions:
{

    "model": "openai/o3-mini",
    "reasoning_effort": "high"
});

Release 2025-03-21 (1.9.26)

Features

  • ElevenLabs Enhancements:
    • Added speech rate control with speed parameter (supports values from 0.7 to 1.2)
    • Added support for force_language parameter to explicitly override language detection and enforce a specific language code
  • Improved Tone Detection:
    • Decreased false-positive rate
    • Added vad_suppress_on_tone option to disable Voice Activity Detection (VAD) and Automatic Speech Recognition (ASR) when tones are detected

Node.js SDK Updates

  • @dasha.ai/sdk v0.11.1:
    • Added xHeaders support for incoming SIP calls (dictionary with SIP X-* headers in received SIP Invite)

Bug Fixes

  • Fixed VoIP configuration removal issue in playground
  • Fixed language detection confidence field output

Configuration Examples

ElevenLabs Configuration Example:

{
    "speed": 1.1,
    "speaker": "ElevenLabs/eleven_flash_v2_5/cgSgspJ2msm6clMCkdW9",
    "lang": "en-US",
    "options": {
        "similarity_boost": 0.75,
        "stability": 0.5,
        "style": 0.3,
        "use_speaker_boost": true,
        "optimize_streaming_latency": 4,
        "force_language": true
    }
}

Tone Detection Configuration Example:

#connectSafe($endpoint,
{
    vad_suppress_on_tone: "true",
    tone_detector: "400, 440, 480",
    vad: "asap_v1"
}

Release 2025-02-13 (1.9.20)

Features

  • Voice Technology:
  • AI Models:
    • Added deepseek/* model family support
    • Added automatic thinking parsing for Deepseek models (including when using Groq as provider)
  • UI Improvements:

Bug Fixes

Release 2025-02-04 (1.9.17)

Features

  • Released Node.js packages (requires Node.js 18+):
  • Added authentication enhancements:
    • Password recovery functionality
    • Single Sign-On (SSO) support with Google authentication

Fixes

  • Fixed GPT context loss in chained function calls when executing pattern: functionCall -> GPT answer/ask -> subsequent functionCall

Release 2025-01-25 (1.9.15)

Features

Fixes

  • Resolved conversation crash when invoking httpRequest with the useSdk: false option and a specified Content-Type header.
  • Fixed Javadoc parsing issue for GPT function definitions with multiline comments.
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