openmedia-mcp (Builderstar/openmedia-mcp) is an MCP server listed on the M8ven Trust Index. It scores 62 out of 100, grade C. It declares 22 tools. No publisher has claimed this listing.
Enables AI agents to extract, analyze, and manipulate images, PDFs, video, and audio while conserving context through downscaling, truncation, and frame/page caps.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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Builderstar
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
OPENMEDIA_CACHE_DIRURL/video download cacheOPENMEDIA_OUTPUT_DIRDefault output locationOPENMEDIA_TEXT_CAPDefault max chars for text outputsOPENMEDIA_MAX_IMAGE_DIMDefault longest edge for returned imagesOPENMEDIA_JPEG_QUALITYDefault JPEG qualityOPENMEDIA_MAX_DOWNLOAD_BYTESDirect-URL download capOPENMEDIA_CMD_TIMEOUTOPENMEDIA_DOWNLOAD_TIMEOUTTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
22/22 tools missing one or more hints — media_probe (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); audio_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); audio_convert (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +19 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Destructive tools are labelled
4 tools perform destructive updates without destructiveHint — audio_waveform deletes at line 178 (tmp_path.unlink(missing_ok=True)); pdf_ocr deletes at line 209 (rendered[0].unlink(missing_ok=True)); pdf_extract_images deletes at line 254 (img_path.unlink(missing_ok=True))
Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.
Descriptions match behaviour
2 tools describe read intent but their handlers mutate — pdf_extract_images (line 254: img_path.unlink(missing_ok=True)); video_transcript (line 357: tmp_path.unlink(missing_ok=True))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tool description accuracy
pdf_extract_images: description implies read-only but handler writes/deletes/executes; video_transcript: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
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