Cosmocoder Web Docs MCP Server
@cosmocoder/mcp-web-docs
npm
v2.2.12
Source verified
Published by cosmocoder — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
Crawls and indexes web documentation from any website.
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 1.2 = 99. What the published surface and source actually contain:
| Points | What was found | Category |
|---|---|---|
| −1.2 | Package runs install-time scripts MTC-SUP-010 | supply-chain |
2. Client adoption risk — 99 − 6 = 93. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 4
high Dynamic code execution in server code (build/crawler/crawlee-crawler.js)MTC-SRC-001
In the server's implementation (`build/crawler/crawlee-crawler.js:302`): Evaluating strings as code is the most direct RCE primitive; if any tool input reaches it, the server executes attacker-chosen code. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: const ExtractorClass = new Function(`return ${code}`)(); const extractor = new ExtractorClass();
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/crawler/crawlee-crawler.js
high Shell/command execution in server code (build/storage/sqlite.js)MTC-SRC-002
In the server's implementation (`build/storage/sqlite.js:23`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: ename); } async exec(sql) { this.database.exec(sql); } async run(sql, params = []) { con
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/storage/sqlite.js
low Dynamic code execution in packaging/dev tooling (build/crawler/login-page-signals.test.js)MTC-SRC-001
In a packaging/dev/install script (shipped, but not the server runtime) (`build/crawler/login-page-signals.test.js:47`): Evaluating strings as code is the most direct RCE primitive; if any tool input reaches it, the server executes attacker-chosen code. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: const detached = new Function(`return (${readLoginPageSignals.toString()})()`); expect(detached()).toEqua
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/crawler/login-page-signals.test.js
low Package runs install-time scripts (postinstall)MTC-SUP-010
"@cosmocoder/mcp-web-docs" executes postinstall script(s) at install time. An install hook runs at install time; most are routine build/setup, but review what it does before trusting it.
Evidence: npx playwright install
Fix: Review the scripts; install with --ignore-scripts where possible and vet what they do.
Location: package @cosmocoder/mcp-web-docs
Tools 18
Each tool and what it can reach — statically extracted from the published source.
add_documentationno sensitive capabilityadd_to_collectionno sensitive capabilityauthenticateno sensitive capabilityclear_authno sensitive capabilitycreate_collectionno sensitive capabilitydelete_collectionno sensitive capabilitydelete_documentationno sensitive capabilityget_collectionno sensitive capabilityget_indexing_statusno sensitive capabilitylist_collectionsno sensitive capability
Show 8 more tools ↓
list_documentationno sensitive capabilitylist_tagsno sensitive capabilityreindex_documentationno sensitive capabilityremove_from_collectionno sensitive capabilitysearch_collectionno sensitive capabilitysearch_documentationno sensitive capabilityset_tagsno sensitive capabilityupdate_collectionno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (18 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 10
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v2.2.12 latest |
A 93/100 | 4 | 1.13.0 | 2026-09-04 |
v2.2.9 |
A 93/100 | 4 | 1.13.0 | 2026-08-25 |
v2.2.8 |
A 93/100 | 4 | 1.12.1 | 2026-08-19 |
v2.2.6 |
A 93/100 | 3 | 1.12.1 | 2026-08-16 |
v2.1.10 |
A 93/100 | 3 | 1.12.1 | 2026-08-12 |
Show 5 more versions ↓
v2.1.7 |
A 93/100 | 3 | 1.12.1 | 2026-08-10 |
v2.1.2 |
A 93/100 | 2 | 1.12.1 | 2026-08-09 |
v2.0.36 |
A 93/100 | 2 | 1.12.1 | 2026-08-04 |
v2.0.33 |
A 93/100 | 2 | 1.12.1 | 2026-08-03 |
v2.0.31 |
A 93/100 | 2 | 1.12.1 | 2026-08-02 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
npx mcptrustchecker scan @cosmocoder/mcp-web-docs --onlineMore in Web, Search & Scraping
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