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Fix double image/ prefix in chart MIME type

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FastMCP's Image class prepends "image/" to the format string, so
passing "image/png" produced "image/image/png". Use bare "png".
This commit is contained in:
Ryan Malloy 2026-02-23 19:44:01 -07:00
parent f6e1fee392
commit 5649d0004a
1 changed files with 2 additions and 2 deletions
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4
src/mcnoaa_tides/tools/charts.py
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@ -92,7 +92,7 @@ def register(mcp: FastMCP) -> None:
from mcnoaa_tides.charts.tides import render_tide_chart_png from mcnoaa_tides.charts.tides import render_tide_chart_png
png_bytes = render_tide_chart_png(predictions, observed, station_name) png_bytes = render_tide_chart_png(predictions, observed, station_name)
return Image(data=png_bytes, format="image/png") return Image(data=png_bytes, format="png")
else: else:
from mcnoaa_tides.charts.tides import render_tide_chart_html from mcnoaa_tides.charts.tides import render_tide_chart_html
@ -179,7 +179,7 @@ def register(mcp: FastMCP) -> None:
from mcnoaa_tides.charts.conditions import render_conditions_png from mcnoaa_tides.charts.conditions import render_conditions_png
png_bytes = render_conditions_png(snapshot, station_name) png_bytes = render_conditions_png(snapshot, station_name)
return Image(data=png_bytes, format="image/png") return Image(data=png_bytes, format="png")
else: else:
from mcnoaa_tides.charts.conditions import render_conditions_html from mcnoaa_tides.charts.conditions import render_conditions_html