Flutter Dev MCP Server
flutter-dev-mcp
npm
v1.2.5
Published by zafnz — 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 that gives AI coding agents first-class Flutter development tools
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 − 7 = 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 |
| −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 5
high Shell/command execution in server code (dist/flutter-analyze.js)MTC-SRC-002
In the server's implementation (`dist/flutter-analyze.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: rt { spawn } from "node:child_process"; export async function flutterAnalyze(projectDir) { await runPubGet(projectDi
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/flutter-analyze.js
high Shell/command execution in server code (dist/flutter-commands.js)MTC-SRC-002
In the server's implementation (`dist/flutter-commands.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: rt { spawn } from "node:child_process"; function runCommand(command, projectDir, args) { return new Promise((resolve
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/flutter-commands.js
high Shell/command execution in server code (dist/flutter-devices.js)MTC-SRC-002
In the server's implementation (`dist/flutter-devices.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: rt { spawn } from "node:child_process"; export async function flutterDevices(wireless) { const output = await runDev
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/flutter-devices.js
high Shell/command execution in server code (dist/flutter-run.js)MTC-SRC-002
In the server's implementation (`dist/flutter-run.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: rt { spawn } from "node:child_process"; const runInstances = new Map(); let nextRunId = 1; const MAX_LOG_LINES = 5000; e
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/flutter-run.js
high Shell/command execution in server code (dist/flutter-test.js)MTC-SRC-002
In the server's implementation (`dist/flutter-test.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: rt { spawn } from "node:child_process"; // Store test results keyed by test_run_id const testRunStore = new Map(); let n
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/flutter-test.js
Tools 15
Each tool and what it can reach — statically extracted from the published source.
flutter_logsreads sensitive dataflutter_pub_getingests untrusted inputflutter_analyzeno sensitive capabilityflutter_buildno sensitive capabilityflutter_build_runnerno sensitive capabilityflutter_cleanno sensitive capabilityflutter_devicesno sensitive capabilityflutter_gen_l10nno sensitive capabilityflutter_get_resultno sensitive capabilityflutter_hot_reloadno sensitive capability
Show 5 more tools ↓
flutter_hot_restartno sensitive capabilityflutter_killno sensitive capabilityflutter_pub_addno sensitive capabilityflutter_runno sensitive capabilityflutter_testno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (15 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 |
|---|---|---|---|---|
v1.2.5 latest |
A 93/100 | 5 | 1.13.0 | 2026-09-08 |
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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