Latexmk MCP Server
latexmk-mcp
npm
v1.1.3
Published by an unidentified publisher — no publish provenance and no public repository, so the publisher could not be verified and the source cannot be independently located.
MCP server for the latexmk LaTeX build tool
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 − 8 = 92. 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 |
| −2 | publisher verification (unlinked) — no provenance/repo link, but the shipped source was fully read |
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 9
high Sensitive-source and external-sink co-existMTC-FLOW-004
Tools that read sensitive data ([latexmk_read_config]) and tools that can send data out ([latexmk_compile, latexmk_write_config]) are exposed together. An agent can move private data to the sink.
Evidence: sources [latexmk_read_config] → sinks [latexmk_compile, latexmk_write_config]
Fix: Keep secret-reading and egress capabilities on separate, separately-approved servers.
Location: flow latexmk_read_config → latexmk_compile
high Tool "latexmk_compile" exposes command/code executionMTC-CAP-001
Tool "latexmk_compile" appears to run shell commands or evaluate code (parameter "shell"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.
Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.
Location: tool latexmk_compile
high Tool "latexmk_write_config" exposes command/code executionMTC-CAP-001
Tool "latexmk_write_config" appears to run shell commands or evaluate code (parameter "shell"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.
Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.
Location: tool latexmk_write_config
high Shell/command execution in server code (dist/handlers.js)MTC-SRC-002
In the server's implementation (`dist/handlers.js:1`): 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: execFile, spawn } from "child_process"; import * as fs from "fs/promises"; import * as os from "os"; import * as path fr
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/handlers.js
medium Unconstrained command parameter "shell_escape" on "latexmk_compile"MTC-CAP-006
Tool "latexmk_compile" takes a command-shaped parameter "shell_escape" with no enum/pattern constraint. Free-form, model- or attacker-controlled arguments reaching a shell is the command-injection precondition.
Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.
Location: tool latexmk_compile · inputSchema.properties.shell_escape
medium Unconstrained command parameter "shell_escape" on "latexmk_write_config"MTC-CAP-006
Tool "latexmk_write_config" takes a command-shaped parameter "shell_escape" with no enum/pattern constraint. Free-form, model- or attacker-controlled arguments reaching a shell is the command-injection precondition.
Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.
Location: tool latexmk_write_config · inputSchema.properties.shell_escape
low Mutating tool "latexmk_compile" declares no destructiveHintMTC-CAP-005
Tool "latexmk_compile" 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 latexmk_compile
low Mutating tool "latexmk_write_config" declares no destructiveHintMTC-CAP-005
Tool "latexmk_write_config" 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 latexmk_write_config
low Unconstrained path parameter "working_dir" on "latexmk_read_config"MTC-CAP-008
Tool "latexmk_read_config" takes a path parameter "working_dir" with no constraint. Without a canonicalize-and-contain check (not visible statically), this permits ../ traversal outside the intended root.
Fix: Resolve and verify the path stays within an allowed root; reject traversal sequences.
Location: tool latexmk_read_config · inputSchema.properties.working_dir
Tools 11
Each tool and what it can reach — statically extracted from the published source.
latexmk_compileruns code / shelllatexmk_read_configreads sensitive datalatexmk_write_configruns code / shelllatexmk_checkno sensitive capabilitylatexmk_cleanno sensitive capabilitylatexmk_draft_compileno sensitive capabilitylatexmk_list_citationsno sensitive capabilitylatexmk_list_dependenciesno sensitive capabilitylatexmk_watch_listno sensitive capabilitylatexmk_watch_startno sensitive capability
Show 1 more tool ↓
latexmk_watch_stopno 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 (11 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 |
|---|---|---|---|---|
v1.1.3 latest |
A 92/100 | 9 | 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.
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