# Step 1 — Implementation Detail

1. Implemented owner/repository/path-prefix scope and credential_ref-based bearer authentication.
2. Implemented full file listing and configured MIME filtering for Markdown, plain text, and source files.
3. Implemented incremental retrieval from a source revision and scoped changed-path filtering.
4. Mapped GitHub file and commit metadata into normalized document provenance and stable IDs.
5. Mapped webhook commit modifications/removals into contract Change records.