Tetrate provider: No models loading when selecting provider

[blackgirlbytes]

Problem

Users report that when selecting Tetrate as their provider, no models are displayed in the model selection dropdown.

Root Cause Analysis

The fetch_supported_models() method in crates/goose/src/providers/tetrate.rs filters models too aggressively:

1. Models without a supported_parameters field are skipped entirely (line 303-310)
2. Models where supported_parameters doesn't include tools are filtered out (line 314-323)
3. If ALL models get filtered, the method returns Ok(None) which results in an empty dropdown

Recent Context

Commit 58a1353bb0a (Jan 29, 2026) changed from checking supports_computer_use to supported_parameters, but the filtering remains too strict.

Suggested Fix

Consider one of these approaches:

1. Fall back to showing all models when supported_parameters field is missing
2. Use the TETRATE_KNOWN_MODELS constant as a fallback when API returns no usable models
3. Make tool support filtering optional/configurable

Affected Code

• crates/goose/src/providers/tetrate.rs - fetch_supported_models() method (lines 247-335)

User Impact

Users cannot select any model when using Tetrate provider, making it unusable.

[blackgirlbytes]

Closing as this was already addressed in PR #6808 (merged Jan 29, 2026). The fix is included in v1.23.0.

If users are still experiencing this issue after updating to v1.23.0, it may be related to issue #6993 (account balance/API key validation error) which suggests the Tetrate API key may be invalid or the account needs attention.

Users experiencing this should:

1. Update to goose v1.23.0 or later
2. Verify their Tetrate API key is valid at router.tetrate.ai
3. Re-authenticate with Tetrate if needed