bluesky (pmcostadev/bluesky) is an MCP server listed on the M8ven Trust Index. It scores 50 out of 100, grade D. It declares 42 tools. No publisher has claimed this listing.

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D
Caution
50/100

bluesky

MCP server for Bluesky with AT Protocol OAuth (DPoP, PAR, PKCE) instead of app passwords. 42 tools including DMs.

→ pmcostadev/bluesky· listed on github_repo_search

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.

How we verified

⚡ Live Monitored: not connected

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Who stands behind it

pmcostadev

Source: github_repo_search

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GitHub

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
🚨
Secret credentials may flow to a network call
1 flow detected: KV_REST_API_TOKEN. We can’t prove the destination matches the brand the credential belongs to.
🚨
Known vulnerabilities in dependencies: 3 critical, 14 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 6 credentials: ADMIN_TOKEN, COMPOSIO_API_KEY, KV_REST_API_TOKEN, OAUTH_SIGNING_SECRET, REDIS_REST_TOKEN, UPSTASH_REDIS_REST_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies3 critical14 high6 medium7 low

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

criticalnext@15.3.3GHSA-2xp9-vwfh-vxw4

Next.js: Unauthenticated Remote Code Execution in Image Optimization API when AVIF files are used

criticalnext@15.3.3GHSA-9qr9-h5gf-34mp

Next.js is vulnerable to RCE in React flight protocol

criticalnext@15.3.3GHSA-p293-qw3h-jr36

Next.js: Unauthenticated Remote Code Execution on windows-hosted servers

high@modelcontextprotocol/sdk@1.10.3GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.10.3GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

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.
🔐 secretADMIN_TOKENDiagnostics are gated. The administrative endpoint is disabled unless is set, and that token is deliberately unrelated to the signing secret.
configALLOWED_ORIGINS
configBLUESKY_DEFAULT_PDS
configBLUESKY_PRIVATE_KEY_1ES256 private key as single-line JWK. Optional, but without it sessions expire every 14 days.
configBLUESKY_PRIVATE_KEY_2
configBLUESKY_PRIVATE_KEY_3
configBLUESKY_SCOPE
🔐 secretCOMPOSIO_API_KEY
configCOMPOSIO_AUTH_CONFIG_ID
configCOMPOSIO_CALLBACK_URL
configCOMPOSIO_USER_ID
configCONNECT_ALLOWED_ORIGINS
🔐 secretKV_REST_API_TOKENSession storage. Set automatically by the Vercel KV integration.
configKV_REST_API_URLSession storage. Set automatically by the Vercel KV integration.
configOAUTH_PUBLIC_ORIGINPublic https origin. It forms the client_id, so it must be the domain users reach.
🔐 secretOAUTH_SIGNING_SECRET32+ random chars. Encrypts the tokens this server issues.
configRATE_LIMIT_MAX_REQUESTS
configRATE_LIMIT_WINDOW_MS
🔐 secretREDIS_REST_TOKEN
configREDIS_REST_URL
🔐 secretUPSTASH_REDIS_REST_TOKEN
configUPSTASH_REDIS_REST_URL
// quality suggestions

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

42/42 tools missing one or more hints — create_post (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_posts (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_likes (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +39 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.

Tests exist

No test files found

Add tests that exercise each declared tool.

Secrets stay with their owner

1 secret sent to a request target we could not resolve (KV_REST_API_TOKEN → dynamic) — often a configured endpoint, not necessarily third-party

Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.

Production dependencies are patched

3 critical, 14 high severity in production deps — next@15.3.3 (critical), next@15.3.3 (critical)

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

Dependency freshness

1/11 production deps stale: feed-parser@2022-06-18 (4.2y)

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 5 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: 86b4e72e69ae4804852c2581b75f86e583826c8a
code hash: c1a81d9feb59ae4635526437ee4e974b32cf0064faaa7cce98becfad77b30dbe
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