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Creates interactive schedule visualizations with parallel tracks, dependencies, and live timers.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 7 days ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The rhylthyme-mcp MCP server exposes 11 tools, focused primarily on general-purpose capabilities. Its published description reads: "Creates interactive schedule visualizations with parallel tracks, dependencies, and live timers". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates rhylthyme-mcp F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Data-exfiltration parameters" and "Single tool combines the lethal trifecta". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check rhylthyme-mcp's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add rhylthyme-mcp to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://mcp.rhylthyme.com/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Render a multi-step parallel schedule as a live timeline (cooking, lab protocols, event run-of-show, training). **Call this for ANY schedule you produce — imported, catalog match, or built freehand.**
Import a recipe or lab protocol from an external source into a Rhylthyme program. Sources: spoonacular (recipes, preferred), themealdb (recipes, fallback), protocolsio (lab protocols), cooklang (.cook
Create a Rhylthyme environment definition with resource constraints for a workspace (lab, kitchen, bakery, etc.).
Sign in to your Rhylthyme account so you can list and save your schedules. Opens a browser page where you log in (Google, Apple, or email). After signing in, copy the token displayed on the page and p
List your saved Rhylthyme schedules. Requires a login token from the login tool.
Load a specific saved program by ID. Returns a markdown summary plus a live-timeline URL.
Search the public Rhylthyme catalog of cookable recipes, lab protocols, event templates, and workouts. Returns up to 20 matching programs (id, name, description, view URL) — no sign-in required. Pass
Load a single public recipe / protocol / workout / event template by id. Returns a markdown summary plus a live-timeline URL.
Save a Rhylthyme program to your account. If a program with the same programId already exists, it will be updated.
Render a Rhylthyme program as a static Gantt-chart image so the user can SEE what the live timeline looks like, without committing to opening the live URL. Use this when the user asks for a 'preview'
Returns the source code of the open-source Rhylthyme timeline renderer (Apache-2.0, ~9KB, zero dependencies). Use this when you're building an HTML artifact and the artifact sandbox blocks external sc
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: login
A tool exposes a free-text/webhook/feedback parameter with no honest purpose — a classic exfil channel.
ng in, copy the token displayed on the page and provide it here. {"$sRecommendationRemove side-channel parameters; constrain tool inputs.
tool: login
One tool reads private data, ingests untrusted content, AND can send data outbound — the three preconditions for autonomous data theft in a single call. A prompt injection reaching this tool can exfiltrate secrets with no further step.
your schedules. Opens a browser page where you log in (Google, Apple, or email). AftRecommendationSplit the capabilities across separate least-privilege tools so no single tool can read secrets, read untrusted input, and reach the network at once.
tool: list_my_programs
A tool description tries to alter the model’s use of another tool.
les. Requires a login token from the login tool.RecommendationDescriptions must describe only their own tool.
tool: search_public_recipes
A tool description tries to alter the model’s use of another tool.
chedule, then **visualize_schedule** to display it.RecommendationDescriptions must describe only their own tool.
tool: preview_timeline
A tool description tries to alter the model’s use of another tool.
k. Pair with **visualize_schedule** when the user wants the full shareable interaRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: create_environment
The server advertises open-world / broadly-scoped capabilities.
no annotations on write-capable tool "create_environment"RecommendationScope tools to the minimum needed.
tool: preview_timeline
The description pairs a fetch imperative with a hardcoded external URL, letting the server relocate its real instructions off-metadata and mutate them after review. Fires only when a fetch verb and a URL co-occur, so benign documentation links do not.
a `<script src="https://kitchen.rhylthyme.com/...">` tag will fail. To render the timeline yourseRecommendationDo not direct the model to fetch and act on external URLs; treat linked content as untrusted.
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