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fix(mcp): accept JSON string for add_progress_event detail param

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FastMCP validates dict | None strictly, rejecting a JSON string even if
parseable. Broaden to dict | str | None and coerce in the function body
so callers don't need to pre-parse the detail payload.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Bernd Worsch
2026-03-18 02:11:35 +01:00
parent b66291aac1
commit cb2c4f9a0c
1 changed files with 7 additions and 2 deletions
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9
mcp_server/server.py
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@@ -547,7 +547,7 @@ def add_progress_event(
topic_id: str | None = None, topic_id: str | None = None,
workstream_id: str | None = None, workstream_id: str | None = None,
task_id: str | None = None, task_id: str | None = None,
detail: dict | None = None, detail: dict | str | None = None,
) -> str: ) -> str:
"""Append a progress event to the log. """Append a progress event to the log.
@@ -557,8 +557,13 @@ def add_progress_event(
topic_id: optional topic UUID topic_id: optional topic UUID
workstream_id: optional workstream UUID workstream_id: optional workstream UUID
task_id: optional task UUID task_id: optional task UUID
detail: optional structured data (JSONB) detail: optional structured data (JSONB); accepts a dict or a JSON string
""" """
if isinstance(detail, str):
try:
detail = json.loads(detail)
except (json.JSONDecodeError, ValueError):
detail = {"raw": detail}
event = _post("/progress", { event = _post("/progress", {
"topic_id": topic_id, "topic_id": topic_id,
"workstream_id": workstream_id, "workstream_id": workstream_id,