tafel (parmeet10/tafel) is an MCP server listed on the M8ven Trust Index. It scores 54 out of 100, grade D. It declares 2 tools. No publisher has claimed this listing.
MCP server that lets Claude Code create explainer videos from plain English requests by writing and rendering manim animations locally, then publishing the result as a shareable artifact.
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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parmeet10
Source: Glama
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TAFEL_OUTPUT_DIR~/.tafel/renders Where finished renders land before being published and cleaned up.TAFEL_TIMEOUT300 (seconds) Per-render timeout; doubled automatically for deep_dive. Raise it if high/fourk renders are timing out.Tool 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
2/2 tools missing one or more hints — render_animation (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); cleanup_render (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). 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
2 tools perform destructive updates without destructiveHint — render_animation deletes at line 240 (shutil.rmtree(render_dir, ignore_errors=True)); cleanup_render deletes at line 258 (os.remove(entry_path))
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.
Tool handlers catch errors
1/2 tool handlers wrap calls in try/catch (50%)
Wrap each tool handler body in try/catch and return a structured error response.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
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