Atlas / MCP servers / useshortcut / Shortcut

ShortcutSAFE

mcp/useshortcut/shortcut-2

The MCP server for Shortcut

Verdict
SAFE
Grade
B
Trust score
89 /100
Exposed tools
4 4r · 0w · 0d
Transport
stdio · streamable-http
License
MIT
Stars
98
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

:warning: :warning: :warning:

All future development on the Shortcut MCP server will be done on the remote server at https://mcp.shortcut.com/mcp.

This repo remains here for historical reference purposes only.

:warning: :warning: :warning:

[](https://twitter.com/intent/follow?screen_name=shortcut)

MCP Server for Shortcut users.

Usage

Usage instructions can be found at https://mcp.shortcut.com/mcp

Issues and Troubleshooting

Ask for help in our Community Slack

Read from source at commit c5131fdc26c2OBSERVED · 2026-10-07
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code
claude mcp add mcp --env AUTH_SERVER=${AUTH_SERVER} --env OAUTH_ALLOWED_REDIRECT_URIS=${OAUTH_ALLOWED_REDIRECT_URIS} --env SHORTCUT_API_TOKEN=${SHORTCUT_API_TOKEN} --env SHORTCUT_OAUTH_CLIENT_ID=${SHORTCUT_OAUTH_CLIENT_ID} -- npx -y @shortcut/[email protected]
claude-desktop
{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@shortcut/[email protected]"
      ],
      "env": {
        "AUTH_SERVER": "${AUTH_SERVER}",
        "OAUTH_ALLOWED_REDIRECT_URIS": "${OAUTH_ALLOWED_REDIRECT_URIS}",
        "SHORTCUT_API_TOKEN": "${SHORTCUT_API_TOKEN}",
        "SHORTCUT_OAUTH_CLIENT_ID": "${SHORTCUT_OAUTH_CLIENT_ID}"
      }
    }
  }
}
03

Exposed tools (4)

4 read · 0 write · 0 destructive.

ToolRiskDescription
archived-teamreadAn archived team
described-labelreadA label with description
team-onereadDescription for Team 1
team-tworeadDescription for Team 2
04

Trust audit

SAFEgrade B · trust 89/100 Nothing in the source contradicts what it says it does. Grade A is reserved for packages that have also passed the behavioural sandbox.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeWARN
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
declared (1 observation(s))
Network
none-observed
Shell
none-observed
Dependencies
not all pinned
Secrets in source
none-found

Findings (7)

MEDIUMInformation disclosure · disclose.log_secret · CWE-209, CWE-532
tools/oauth-flow-tester.ts:461
console.log(`\nUsing expected ID token signing algorithm: ${resolvedIdTokenAlg}`);
LOWInventory / provenance · inv.hidden_file · CWE-1104
.mcpbignore
.mcpbignore
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
src/mcp/CustomMcpServer.ts:12
import { name, version } from "../../package.json";
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
package.json
@modelcontextprotocol/sdk, @shortcut/client, dotenv, express, jose, oauth4webapi, pino, pino-http
Why it matters. 12 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
docs/oauth-proxy-implementation.md:40
MCP->>Auth: POST token endpoint (code + client_secret)
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
docs/oauth-proxy-implementation.md:123
- `POST /token` (token endpoint)
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine
INFOPrompt injection · prompt.credential_read · CWE-94, CWE-1427
docs/oauth-proxy-implementation.md:76
Factory function that returns an `OAuthProviderWithCallback` implementing the MCP SDK's `OAuthServerProvider` interface. All configuration is read lazily from environment variables (so tests can set e
Why it matters. asks the agent to read credentials

Gates applied: no_behavioural_pass.

Audited 2026-10-07 · audit v0.4.1 · source sha c5131fdc26c2full audit observations/trust-audit/mcp-server/useshortcut__shortcut-2.json · Report an issue / request a re-scan
05

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-07c5131fdc26c2SAFEB89first audit
06

Questions

What is the Shortcut MCP server?

The MCP server for Shortcut

What tools does Shortcut expose?

4 in total: 4 read-only, 0 that write, and 0 that can delete or overwrite. Every one is listed on this page with its risk.

Is Shortcut safe to connect to an agent?

The audit found nothing in the source that contradicts what it says it does, and graded it B (89/100). Grade A is held back for packages that have also passed a sandboxed behavioural run, which is why a clean server reads B.

What credentials does Shortcut need?

It reads AUTH_SERVER, OAUTH_ALLOWED_REDIRECT_URIS, SHORTCUT_API_TOKEN, SHORTCUT_OAUTH_CLIENT_ID, SHORTCUT_OAUTH_CLIENT_SECRET and TEST_AUTH_CODE from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does Shortcut run?

It speaks stdio and streamable-http, so it runs as a local process your client starts. It is published on npm as @shortcut/mcp at 0.25.0.

How current is this page?

The grade is for one exact copy of the source (c5131fdc26c2), read on 2026-10-07. The repository is watched and re-audited when it changes.

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