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Error resolving schema reference '$ref' in Canva MCP tool when using custom API provider #29220
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Description
Description
OpenCode v1.15.10 — Fireworks API provider
Error:
Error resolving schema reference '#/properties/operations/items/anyOf/2/properties/asset_id': AttributeError("'NoneType' object has no attribute 'lookup'")
Repro:
- Ajouter une clé API Fireworks (provider custom)
- Configurer le MCP Canva dans opencode.json
- Lancer opencode avec un modèle Fireworks (e.g. deepseek-v4-flash)
- L'erreur apparaît à l'initialisation
Cause probable : le schéma de l'outil perform-editing-operations du MCP Canva
contient des $ref auto-référents que le résolveur JSON Schema ne gère pas
avec les providers API custom.
Workaround : désactiver le MCP Canva (enabled: false) quand on utilise
un provider custom.
Plugins
MCP Canva
OpenCode version
Latest
Steps to reproduce
No response
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Operating System
No response
Terminal
No response
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github-actions commentedon May 25, 2026
This issue might be a duplicate of existing issues. Please check:
$refresolution failing on self-referential/circular JSON Schema in MCP tool definitions, error at initialization)github-actions commentedon Jul 25, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.