Muse Spark model requires explicit opt-in for data collection

Description

The Muse Spark 1.2 Contributor model fails with an error indicating that it collects data used to improve its quality and requires explicit opt-in. This prevents users from using the model without understanding the data collection implications.

Error Message

AI_APICallError: This model collects data used to improve its quality and requires explicit opt in: https://opencode.ai/workspace/wrk_01KJHRCVJTA9W5D147MYK8K5JD/go

Steps to Reproduce

1. Configure OpenCode to use the Muse Spark 1.2 Contributor model (provider: opencode-go)
2. Attempt to use the model for a session
3. Observe the stream error and process error

Expected Behavior

The model should either:

• Automatically handle opt-in requirements
• Provide a clear prompt for users to opt-in before using the model
• Display a user-friendly message about data collection implications

Actual Behavior

The error occurs during streaming and processing:

timestamp=2026-08-20T22:44:59.419Z level=ERROR run=4d354d3a message="stream error" providerID=opencode-go modelID=muse-spark-1.2-contributor session.id=ses_fdea6c2a4ffeq4IpWcEamMCoUs small=true agent=title mode=primary error.error="AI_APICallError: This model collects data used to improve its quality and requires explicit opt in: https://opencode.ai/workspace/wrk_01KJHRCVJTA9W5D147MYK8K5JD/go"

timestamp=2026-08-20T22:45:00.782Z level=ERROR run=4d354d3a message="stream error" providerID=opencode-go modelID=muse-spark-1.2-contributor session.id=ses_fdea6c2a4ffeq4IpWcEamMCoUs small=false agent=build mode=primary error.error="AI_APICallError: This model collects data used to improve its quality and requires explicit opt in: https://opencode.ai/workspace/wrk_01KJHRCVJTA9W5D147MYK8K5JD/go"

timestamp=2026-08-20T22:45:00.787Z level=ERROR run=4d354d3a message=process session.id=ses_fdea6c2a4ffeq4IpWcEamMCoUs messageID=msg_021593e39001qJP8by3X1Qt8nR error="This model collects data used to improve its quality and requires explicit opt in: https://opencode.ai/workspace/wrk_01KJHRCVJTA9W5D147MYK8K5JD/go" stack="AI_APICallError: This model collects data used to improve its quality and requires explicit opt in: https://opencode.ai/workspace/wrk_01KJHRCVJTA9W5D147MYK8K5JD/go"
    at <anonymous> (/$bunfs/root/chunk-56zmd6rp.js:6:14544)
    at async <anonymous> (/$bunfs/root/chunk-56zmd6rp.js:6:12751)
    at processTicksAndRejections (native:7:39)"

Environment

• OpenCode version: Latest dev build
• OS: macOS 26.0.1
• Terminal: iTerm2
• Model: Muse Spark 1.2 Contributor (provider: opencode-go)

Additional Context

This error appears to be a model-specific requirement that isn't properly handled by OpenCode. The model provider should either handle opt-in automatically or OpenCode should provide a mechanism for users to acknowledge data collection before using the model.

Start with the opencode-go provider and the streaming and process error paths shown in the report. Trace how the model-specific opt-in error is surfaced, then determine the intended user-facing behavior with maintainers; done means the requirement is handled clearly and the reported session no longer fails without an understandable opt-in path.