Adds OpenCode (https://github.com/opencode-ai/opencode) as a supported
provider. OpenCode is an open-source terminal AI coding assistant with
an OpenAI-compatible API running locally.
Changes:
- open-sse/config/providers.js: add opencode baseUrl (localhost:4096)
with openai format (fully compatible, no custom headers needed)
- open-sse/services/model.js: add 'oc' alias → opencode
- src/shared/constants/providers.js: add opencode to subscription
providers with alias 'oc', icon 'terminal', color #E87040
Usage after setup: use model prefix 'oc/<model>' to route through
a running OpenCode instance (e.g. oc/claude-sonnet-4-5).
Closes#378
When using SA JSON + Bearer token, Vertex AI requires a project-scoped URL.
The old code used the global publishers endpoint which only works with a raw API key,
causing RESOURCE_PROJECT_INVALID errors.
Changes in open-sse/executors/vertex.js buildUrl():
- SA JSON path: projects/{projectId}/locations/{location}/publishers/google/models/{model}:{action}
- Appends ?alt=sse for streaming on SA JSON path
- Location defaults to us-central1, overridable via providerSpecificData.location
- Raw API key path unchanged (global publishers + ?key= param)
Co-authored-by: anuragg-saxenaa <anuragg.saxenaa@gmail.com>
Made-with: Cursor
Kiro returns HTTP 400 with 'Improperly formed request (reset after Xs)'
when a model is not available on that account's subscription tier.
Previously this fell through to COOLDOWN_MS.transient (30s), causing
rapid retries on all accounts before failing — all accounts get locked
simultaneously with no actual fallback.
Treating this as paymentRequired (2min cooldown) ensures:
1. The model is locked on that account for 2min (proper cooldown)
2. The next available account is tried immediately
3. If all accounts hit the same 400, 9Router falls through to the
next provider in the combo
Fixes#384
- fixes#335: on transient 503/502/504, wait for short cooldown (up to
5s) before falling to next combo model, giving the provider a chance
to recover rather than immediately skipping it
- fixes#334: when all combo models have no active credentials, return
503 (Service Unavailable) instead of 406 (Not Acceptable), which is
more accurate and retriable by clients
Gemini API requires enum properties to have an explicit type:"string"
declaration. Without it, tool calls with enum parameters return 400
Bad Request. Fixes#359.
Anurag Saxena