Ariel (TickTockBent/ariel) is an MCP server listed on the M8ven Trust Index. It scores 54 out of 100, grade D. It declares 38 tools. No publisher has claimed this listing.

Caution

54/100

Ariel

Item: Ariel
Rating: 54
Author: M8ven

Ariel is an MCP server that exposes AT Protocol (Bluesky) operations as tools, enabling AI assistants to read, write, and interact on Bluesky with human-in-the-loop control.

→ TickTockBent/ariel · listed on glama

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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Who stands behind it

TickTockBent

Source: Glama

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Install from

Glamanot scored here

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.

// key findings

🚨

Known vulnerabilities in dependencies: 2 critical, 3 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

🔐

You'll be asked for 1 credential: BLUESKY_APP_PASSWORD

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// tools this server exposes38 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

ariel_auth_status

Check Bluesky authentication state, handle, DID, profile info, and rate limits

ariel_auth_logout

Log out of Bluesky, clear stored session

ariel_upload_image

Upload an image blob to Bluesky. Returns a blob reference for use in post creation.

ariel_create_post_with_images

Create a post with attached images (max 4 images, max 1MB each)

ariel_create_post_with_link_card

Create a post with a link card (fetches Open Graph metadata for preview)

ariel_get_notifications

Get recent notifications (likes, reposts, follows, mentions, replies)

ariel_get_unread_count

Get the number of unread notifications

ariel_mark_notifications_read

Mark all notifications as read

ariel_get_timeline

Get the authenticated user's home timeline. Use mode 'hours' to fetch all posts within a time window.

ariel_get_author_feed

Get posts from a specific user's feed

ariel_get_post_thread

Get a post and its thread (parents and replies)

ariel_get_posts

Get multiple posts by their AT URIs (max 25)

ariel_get_profile

Get a user's profile information

ariel_get_feed

Get posts from a custom feed (feed generator)

ariel_search_posts

Search for posts on Bluesky

ariel_search_users

Search for users on Bluesky

ariel_get_trends

Get trending topics on Bluesky (uses unspecced endpoint — may change)

ariel_get_saved_feeds

Get the authenticated user's saved and pinned feeds

ariel_get_list

Get a list's metadata and members

ariel_get_list_feed

Get posts from a list feed

ariel_resolve_url

Convert a bsky.app URL to an AT URI with metadata

ariel_follow

Follow a user on Bluesky

ariel_unfollow

Unfollow a user. Automatically resolves the follow record from viewer state.

ariel_get_followers

Get a user's followers

ariel_get_follows

Get users that a user follows

ariel_mute

Mute a user on Bluesky

ariel_unmute

Unmute a user on Bluesky

ariel_block

Block a user on Bluesky

ariel_unblock

Unblock a user. Automatically resolves the block record from viewer state.

ariel_create_post

Create a new post on Bluesky with automatic mention/link/hashtag detection

ariel_create_thread

Create a thread of multiple posts. Each post is chained as a reply to the previous one.

ariel_reply

Reply to a post. Automatically resolves the thread root for proper threading.

ariel_quote_post

Create a post that quotes another post

ariel_delete_post

Delete one of your posts

ariel_like

Like a post

ariel_unlike

Unlike a post. Accepts the post URI (auto-resolves like record) or like record URI directly.

ariel_repost

Repost a post

ariel_unrepost

Remove a repost. Accepts the post URI (auto-resolves repost record) or repost record URI directly.

// known CVEs in dependencies2 critical3 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@3.0.0GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

criticalvitest@3.0.0GHSA-9crc-q9x8-hgqq

Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

high@modelcontextprotocol/sdk@1.12.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// environment variables

To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.

configARIEL_DATA_DIRNo Session storage directory (default: ~/.ariel/)

🔐 secretBLUESKY_APP_PASSWORDYes A Bluesky [app password](https://bsky.app/settings/app-passwords)

configBLUESKY_IDENTIFIERYes Your Bluesky handle or email

configBLUESKY_SERVICE_URLNo PDS URL (default: https://bsky.social)

// quality suggestions

Tool annotations

25/38 tools have annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

38/38 tools missing one or more hints — ariel_auth_status (missing: idempotentHint, openWorldHint); ariel_auth_logout (missing: idempotentHint, openWorldHint); ariel_upload_image (missing: idempotentHint, openWorldHint), +35 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.

Tool inputs are validated

33/38 tool handlers declare input schemas (87%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Tool handlers catch errors

36/38 tool handlers wrap calls in try/catch (95%)

Wrap each tool handler body in try/catch and return a structured error response.

Tool test coverage

Only 0/38 tools referenced in tests (0%)

Write tests that reference each tool by name so every tool has at least one test.

Production dependencies are patched

0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dev dependencies

2 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail

The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.

// improvement guidance — verified publishers only

We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

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commit: 8dc00a86dd51c1e1b45ff41a285457d667e3ae70

code hash: 2905b73c777787ea32f30ccb153f9cc3cebd8945af86522c9f6163f10073cfe9

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