API is a plain mapping, so an inventory that configures three providers replaces the whole declaration from group_vars/all/18_api.yml instead of merging into it. inventories/development/default.yml declares openai, anthropic and openrouter, so github, google and jira did not exist in CI at all and lookup('api', 'github.client_id') raised.
A raising lookup inside a value the applications renderer is templating does not fail the render: _templar_render_best_effort returns the string untouched and, for a value carrying a non-env lookup(, refuses the fallback as well. The raw template text reached plugin_value.enabled | bool, which coerced it to False and emitted the deprecation warning that fails the deploy gate. Run 34893363518, job 104153194109 lost web-app-nextcloud to exactly that, for three integrations at once. The configvalue entries would have stored template text as the client id.
utils/api.py merges the scope's override over the declaration, so an override narrows values and never the provider set, and holds the enable rule: every credential a provider declares must carry a value. The api lookup reads through it; the new api_enabled lookup gates on it and returns a real boolean instead of a string a filter has to coerce.
The same class sat in group_vars/all/16_ai.yml and roles/svc-ai-litellm/meta/secrets.yml as bare API.<provider>.<key> dereferences; both now go through the lookups.
Two lints keep it shut. test_addon_enabled_renders_to_bool renders the whole applications map against a scope with API blanked, the most hostile override an inventory may legally write, and requires every addon gate to come out a boolean. test_api_accessed_via_lookup forbids a bare API dereference in Jinja under roles/, group_vars/ and inventories/.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Add group_vars/all/18_api.yml defining the global API mapping (cloudflare, telegram, github, google, jira) and plugins/lookup/api.py — the single sanctioned reader that resolves a dotted 'provider.key' path against it and raises on unknown keys. Routing every proprietary/external credential access through one lookup keeps a single point to change how credentials are sourced. Includes the unit test covering nested resolution, subtree access, error paths, and templar handling.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>