Module mcp_credentials 

File-backed MCP credential provider (v2.2).

Implements McpCredentialProvider using OAuth2 client_credentials. For each server with an OAuthConfig in mcp.json, the provider POSTs to token_url to exchange client_id/client_secret for an access token, caches it in ~/.config/oxicode/mcp-tokens.json, and returns it on McpCredentialProvider::access_token. Tokens are refreshed when missing or expired (based on expires_in).

Browser-based authorization-code flow (with a local callback server) is not implemented in v2.2 — clients without a public client_id / client_secret (e.g. MCP servers that require user-interactive consent) cannot be auto-authenticated. Use the server’s own hosted login and configure oauth to a machine-client for now.

Trigger a manual refresh via /mcp reauth <server> in the TUI.

Structs

FileMcpCredentialProvider

File-backed credential provider. Constructed once in the bootstrap and shared with McpManager via Arc<dyn McpCredentialProvider>.