Trelly MCP Server
trelly
npm
v0.3.9
Source verified
Published by brandonkramer — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
trelly — fast Trello CLI with multi-profile auth, MCP server, and kanban TUI
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 6
high Shell/command execution in server code (bin/launch-cursor-mcp.mjs)MTC-SRC-002
In the server's implementation (`bin/launch-cursor-mcp.mjs:6`): 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"; import { existsSync, readdirSync, statSync } from "node:fs"; import { homedir }
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 bin/launch-cursor-mcp.mjs
high Shell/command execution in server code (src/sync-plugin-versions.ts)MTC-SRC-002
In the server's implementation (`src/sync-plugin-versions.ts: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: spawnSync } from "node:child_process"; import { readFileSync, writeFileSync } from "node:fs"; import { dirname, join, r
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 src/sync-plugin-versions.ts
high Shell/command execution in server code (src/update.ts)MTC-SRC-002
In the server's implementation (`src/update.ts: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"; import { cpSync, existsSync, mkdirSync, readFileSync, realpathSync,
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 src/update.ts
high Shell/command execution in server code (src/util/runtime.ts)MTC-SRC-002
In the server's implementation (`src/util/runtime.ts: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"; import { createInterface } from "node:readline"; export async function readLine
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 src/util/runtime.ts
low Shell/command execution in packaging/dev tooling (src/install.test.ts)MTC-SRC-002
In a packaging/dev/install script (shipped, but not the server runtime) (`src/install.test.ts:2`): 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: spawnSync } from "node:child_process"; import { chmodSync, existsSync, mkdirSync, mkdtempSync, readFileSync,
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 src/install.test.ts
low Package runs install-time scripts (postinstall)MTC-SUP-010
"trelly" 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: node -e "try{const{chmodSync}=require('fs');for(const f of['bin/trelly','bin/trelly-mcp','bin/run-ts','bin/launch-cursor-mcp.mjs','bin/install-cursor-plugin-loc
Fix: Review the scripts; install with --ignore-scripts where possible and vet what they do.
Location: package trelly
Tools 30
Each tool and what it can reach — statically extracted from the published source.
trello_webhook_createnetwork egresstrello_webhook_deletenetwork egresstrello_api_getno sensitive capabilitytrello_api_mutateno sensitive capabilitytrello_board_archiveno sensitive capabilitytrello_board_contextno sensitive capabilitytrello_board_createno sensitive capabilitytrello_boards_listno sensitive capabilitytrello_card_add_labelno sensitive capabilitytrello_card_archiveno sensitive capability
Show 20 more tools ↓
trello_card_attachment_addno sensitive capabilitytrello_card_attachment_deleteno sensitive capabilitytrello_card_comment_createno sensitive capabilitytrello_card_comment_deleteno sensitive capabilitytrello_card_comment_updateno sensitive capabilitytrello_card_contextno sensitive capabilitytrello_card_createno sensitive capabilitytrello_card_deleteno sensitive capabilitytrello_card_moveno sensitive capabilitytrello_card_updateno sensitive capabilitytrello_checklist_add_itemno sensitive capabilitytrello_checklist_createno sensitive capabilitytrello_label_createno sensitive capabilitytrello_list_cardsno sensitive capabilitytrello_list_createno sensitive capabilitytrello_member_meno sensitive capabilitytrello_profiles_listno sensitive capabilitytrello_resolveno sensitive capabilitytrello_searchno sensitive capabilitytrello_webhooks_listno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (30 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 |
|---|---|---|---|---|
v0.3.9 latest |
A 93/100 | 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.
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