diff --git a/.agents/docs/FUNCTIONS.md b/.agents/docs/FUNCTIONS.md
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+- **Localization quality gate** — reviews pull requests for duplicated translation keys in iOS/Mac string files.
+  - **Duplicate detection** — scans added and modified localization string files in a change set and lists each duplicated key with its file, ignoring comments and blank lines.
+  - **Review reporting** — posts a file/key table of found duplicates as a comment on the code review when any duplicates exist.
+  - **Programmatic access** — exposes the raw list of duplicate entries so review scripts can apply their own rules.
diff --git a/.agents/docs/INTERACTIONS.yml b/.agents/docs/INTERACTIONS.yml
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+---
+internal_calls: {}
+external_calls: {}
+listens: {}
+publishes: []
diff --git a/.agents/docs/service-card.yaml b/.agents/docs/service-card.yaml
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+---
+name: danger-duplicate_localizable_strings
+kind: libraries
+domain: developer-tooling
+description: |
+  A **code-review plugin** for the Danger review bot that guards **localization quality** in iOS and Mac projects. When a pull request touches **translation string files**, it detects **duplicated translation keys** and comments on the review with a table of the offending files and keys.