Overleaf (sahithreddy) MCP Server
overleaf-mcp
npm
v1.1.0
Published by sahithreddy — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
MCP server connecting Claude to Overleaf — automated LaTeX resume editing, compilation, and job tailoring without copy-paste
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 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 11 = 89. 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 |
|---|---|
| −10 | capability blast radius (critical) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
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 6
critical Completed toxic-flow trifecta across toolsMTC-FLOW-002
This server (without client built-ins) exposes a complete data-exfiltration chain: overleaf_download_pdf → overleaf_read_file → overleaf_open_project. Untrusted input is ingested, private data is read, and it can be sent to an external sink via the agent composing the tools (→). Static analysis proves the primitive exists, not that a specific run will occur.
Fix: Remove one leg of the trifecta: isolate untrusted-input tools from secret-reading tools and from egress tools, or require human approval between them.
Location: flow overleaf_download_pdf → overleaf_read_file → overleaf_open_project
high Shell/command execution in server code (dist/tools/latex.js)MTC-SRC-002
In the server's implementation (`dist/tools/latex.js:5`): 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: ; import { exec } from "child_process"; import { promisify } from "util"; const execAsync = promisify(exec); // Ensure T
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 dist/tools/latex.js
medium Tool "overleaf_write_file" can modify the filesystemMTC-CAP-002
Tool "overleaf_write_file" can write, overwrite or delete files (keyword "write_file" in tool name). Verify it is scoped to a safe directory.
Fix: Constrain file operations to an explicit, non-sensitive root; reject path traversal.
Location: tool overleaf_write_file
medium Tool "overleaf_edit_file" can modify the filesystemMTC-CAP-002
Tool "overleaf_edit_file" can write, overwrite or delete files (keyword "edit_file" in tool name). Verify it is scoped to a safe directory.
Fix: Constrain file operations to an explicit, non-sensitive root; reject path traversal.
Location: tool overleaf_edit_file
low Mutating tool "overleaf_write_file" declares no destructiveHintMTC-CAP-005
Tool "overleaf_write_file" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool overleaf_write_file
low Mutating tool "overleaf_edit_file" declares no destructiveHintMTC-CAP-005
Tool "overleaf_edit_file" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool overleaf_edit_file
Tools 22
Each tool and what it can reach — statically extracted from the published source.
overleaf_read_fileingests untrusted inputreads sensitive dataoverleaf_download_pdfingests untrusted inputoverleaf_edit_filewrites filesoverleaf_open_projectnetwork egressoverleaf_write_filewrites filesats_scoreno sensitive capabilitycompile_latexno sensitive capabilitygenerate_cover_letterno sensitive capabilityget_cached_resumeno sensitive capabilitylist_latex_filesno sensitive capability
Show 12 more tools ↓
list_templatesno sensitive capabilityopen_pdfno sensitive capabilityoverleaf_compileno sensitive capabilityoverleaf_list_projectsno sensitive capabilityoverleaf_loginno sensitive capabilityoverleaf_logoutno sensitive capabilityoverleaf_push_fileno sensitive capabilitypingno sensitive capabilityread_latexno sensitive capabilityswitch_templateno sensitive capabilitytailor_resumeno sensitive capabilitywrite_latexno sensitive capability
Toxic flows 1
Cross-tool combinations that form a data-exfiltration primitive (untrusted input → sensitive source → external sink).
What this scan could not see
- Tools were statically extracted from the published source (22 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 1
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 |
|---|---|---|---|---|
v1.1.0 latest |
B 89/100 | 6 | 1.13.0 | 2026-09-07 |
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 overleaf-mcp --onlineOther implementations of Overleaf 5
Independent packages implementing the same tool, scanned with the same engine. Compare all 6 side by side →
MCP server for Overleaf projects
A minimal, auditable MCP server for editing Overleaf projects via Git
MCP server for Overleaf with tracked-changes support, via the Socket.IO web API (not the Git bridge).
MCP server that lets AI assistants read Overleaf projects, parse LaTeX document structure, and push section-level edits back via Git.
MCP server for Overleaf integration - read LaTeX files, analyze document structure, and manage Overleaf projects via Git
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