bharos opened a new issue, #12099:
URL: https://github.com/apache/gravitino/issues/12099
### Describe the subtask
Follow-up to #11574 / #11693. The MCP server already exposes
`list_statistics_for_partition`, but there is **no tool to discover partition
names/infos**, so an agent has no way to obtain the `from`/`to` partition
inputs
that tool requires. Add read-only partition tools following the established
pattern (interface → plain REST client impl → FastMCP tool → mock → unit
tests),
with authorization enforced by Gravitino.
Proposed tools:
- `list_of_partitions(catalog, schema, table, details=false)` — `GET
.../tables/{table}/partitions` (names, or full infos when `details=true`).
- `get_partition(catalog, schema, table, partition)` — `GET
.../tables/{table}/partitions/{partition}`.
Scope: **read-only** (list/get). Partition add/drop (write) can be a later
subtask.
The backend REST already exists (`PartitionOperations`, both GETs gated by
`LOAD_TABLE_AUTHORIZATION_EXPRESSION`), so authorization-scoped discovery is
inherited automatically — no filtering logic added in the MCP layer.
### Parent issue
#11573
cc @yuqi1129 @jerryshao — does this fit the EPIC scope? Happy to pick it up
once you confirm.
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