tree 8d519eac7241cf633e3cd9675ba83aa0cc497232
parent 347bc50371251f4e0c193b914a93ee534ba186f6
author Nasser Grainawi <nasser.grainawi@oss.qualcomm.com> 1777934039 -0700
committer Nasser Grainawi <nasser.grainawi@oss.qualcomm.com> 1786491955 -0700

Add get_git_parent_changes tool with structured output

Adds a new MCP tool that queries immediate git-parent changes of a given
change using Gerrit's `parentof:` query operator. Useful when navigating
a stack: given a change ID, it surfaces which open Gerrit changes have a
commit that is a direct parent of the queried change. Only immediate
parents are returned; grandparents and higher ancestors are excluded by
design.

Returns a typed _GitParentChangesResult so the MCP SDK auto-generates an
output_schema and produces both structured and unstructured text
content. Error paths raise exceptions rather than returning text error
content blocks. This follows the structured-output pattern documented
in AGENTS.md and the writing-extensions skill.

Includes tests/unit/test_get_git_parent_changes.py covering success, WIP
flag, multiple parents, empty result, JSON decode error, and curl
exception cases.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Change-Id: I61e8703d6dfb2f5aee2135b3a2d6c0a3bea7bf19