Many identity providers (AWS Cognito, Okta, Azure AD) reject or mishandle
colons in OAuth scope names. This migrates all custom scopes from
`resource:action` to `resource.action` format (e.g., `notes:read` →
`notes.read`), which is universally accepted and aligns with industry
conventions (Microsoft, Google).
Includes Alembic migration 004 for stored scope strings and ADR-024
documenting the rationale and RFC references.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
MCP tools returning raw lists caused FastMCP's _convert_to_content() to create
one TextContent block per element. Most MCP clients only read content[0], so
they saw a single result instead of the full list.
Wrapped 9 tool functions in proper response objects:
- deck: deck_get_boards, deck_get_stacks, deck_get_cards, deck_get_labels
- calendar: nc_calendar_list_events, nc_calendar_get_upcoming_events
- contacts: nc_contacts_list_addressbooks, nc_contacts_list_contacts
- tables: nc_tables_list_tables
Closes#568
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Resolves the token exchange implementation gap where get_session_client()
was implemented but never used by tools. Unifies token acquisition into a
single async get_client() method that handles both pass-through and token
exchange modes transparently.
Core Changes:
- Make get_client() async and merge token exchange logic into it
- Remove scopes parameter from token exchange (Nextcloud doesn't support OAuth scopes)
- Update all 8 tool modules to use await get_client(ctx)
- Fix provisioning decorator to skip checks in BasicAuth mode
Token Acquisition Modes:
1. BasicAuth: Returns shared client (no token operations)
2. OAuth pass-through (default): Verifies and passes Flow 1 token to Nextcloud
3. OAuth token exchange (opt-in): Exchanges Flow 1 token for ephemeral token via RFC 8693
Key Architectural Clarifications:
- Progressive Consent (Flow 1/2) = Authorization architecture
- Token Exchange = Token acquisition pattern during tool execution
- Refresh tokens from Flow 2 are NEVER used for tool calls (only background jobs)
- Nextcloud scopes are "soft-scopes" enforced by MCP server, not IdP
Documentation Updates:
- ADR-004: Added comprehensive token acquisition patterns section
- CRITICAL-TOKEN-EXCHANGE-PATTERN.md: Updated to reflect implementation status
- CLAUDE.md: Updated architectural patterns with async get_client()
Testing:
- All 36 unit tests passing
- All 4 smoke tests passing (BasicAuth mode)
- Linting issues fixed (ruff)
Configuration:
ENABLE_TOKEN_EXCHANGE=false (default) - pass-through mode
ENABLE_TOKEN_EXCHANGE=true (opt-in) - token exchange mode
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
