Maintainer review on PR #1895 flagged that mcp_server.py duplicated the
visibility model from api/routes.py:75. Move the canonical helper into
api/profiles.py (next to _is_root_profile, on which it depends) so both
api/routes.py and mcp_server.py import the same function instead of
carrying parallel definitions that could drift as the model evolves.
- api/profiles.py: + _profiles_match (verbatim from former routes.py:75-97)
- api/routes.py: replace local definition with re-export to keep all
existing _profiles_match(...) call sites resolving
without per-call-site refactors
- mcp_server.py: drop local copy, import _profiles_match alongside the
existing api.profiles imports (line 59)
- tests: + test_profiles_match_single_source_of_truth asserts
identity (mcp.module._profiles_match is api.profiles._profiles_match
is api.routes._profiles_match) so any re-introduction of
a local copy trips the test
+ test_profiles_match_input_matrix parametrize across
the (None|''|'default'|'foo') x (None|''|'default'|'foo'|'bar')
visibility matrix per maintainer suggestion
Behaviour unchanged. Zero call-site changes anywhere in api/routes.py.
Co-Authored-By: Claude (Opus 4.7) <noreply@anthropic.com>
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