Purpose

Register a knowledge file in the topics.md index. The AI writes file content directly, then calls this command to update the index.

Input

• bucket : pm | architect | dev | qa

• file : filename within the bucket (must already exist)

• --topic : topic name for topics.md index

• --summary : one-line description for topics.md

• --anchor (optional): anchor tag for topics.md reference

Required Flow

Step 1: Write content directly

Use the file write tool to create or update the target file at .memory/<bucket>/<file> .

Step 2: Register in index

memory-hub index <bucket> <file> --topic <name> --summary "<description>" [--anchor <anchor>]

Output

JSON envelope with index metadata.

Error Handling

• INVALID_BUCKET → invalid bucket name

• FILE_NOT_FOUND → target file does not exist (write the file first)