github-curl

When the mcp__github__gh tool is listed, use it instead: it takes the same subcommands as JSON and needs no shell quoting.

Otherwise, run the engine from Bash. Check the prerequisites first and stop on a non-zero exit:

bash "${CLAUDE_PLUGIN_ROOT}/scripts/preflight.sh"

Then:

GH="${CLAUDE_PLUGIN_ROOT}/engine/gh.py"

PR=$(python3 "$GH" pr-get --format pr-number)
python3 "$GH" pr-threads "$PR" --format thread-summary

Every subcommand, formatter and exit code is listed in ${CLAUDE_PLUGIN_ROOT}/engine/REFERENCE.md. Its tables give the CLI arguments (<pr>, --body-file P); its "Calling" section describes the tool's JSON form, which this route does not use.

Text bodies always travel by file: write the body to a file and pass --body-file, never the text as an argument. Before writing a commit message, a pull request title, a pull request description or a review comment, read its rules in ${CLAUDE_PLUGIN_ROOT}/engine/writing/.