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Implements proper capability token exchange to enable access to all GitHub Copilot models and preview features. Previously, Zed sent OAuth tokens directly to Copilot APIs, causing GitHub to filter out preview models. Now exchanges OAuth tokens for capability tokens that include feature flags like editor_preview_features=1. Changes: - Add CapabilityToken struct with expiration tracking - Implement refresh_capability_token() with caching and auto-refresh - Update all API calls to use capability tokens instead of OAuth tokens - Add Copilot-Integration-Id: vscode-chat header - Fix GitHub Enterprise support with /api/v3/ path prefix - Clear capability tokens when OAuth token or configuration changes Fixes zed-industries#49691
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We can't use the vscode-chat integration id
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@benbrandt of course you can't use vscode. That is exactly what I was mentioning over in #49586 (comment):
That is why this was opened as draft PR to show how API calls could work if there would be |
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Nope, but Ben might have missed your comment here. |
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Implements proper capability token exchange to enable access to all GitHub Copilot models including GPT-5.3-Codex and preview features.
Previously, Zed sent OAuth tokens directly to Copilot APIs, causing GitHub to filter out preview models. Now exchanges OAuth tokens for capability tokens that include feature flags like editor_preview_features=1.
Changes:
Closes #49691