Mcp N8N Workflow Builder

salacoste/mcp-n8n-workflow-builderMIT⭐ 219🔧 45 tools

F1.9SpiderScore (registry)

Decision

Not Recommended

Confidence

90%

Mcp N8N Workflow Builder is not recommended — low score (1.85/10) with 0 critical issues.

Recommended Actions

medium
Limit Permissions
20 high-severity issues warrant caution

Do Not

✗using for security-sensitive tasks

Risk Flags (2)

high
ts_token_leakage×19
Secret or token may be leaked through error messages, logs, or return values
medium
ts_input_reflection
User input reflected directly in tool output -- may enable prompt injection via reflection

How This Was Decided

negativew=0.5Overall quality score = 1.85/10 (grade F)
negativew=0.520 high-severity issue(s) detected
negativew=0.3Tool description clarity score = 1.7/10

Source: SpiderRating automated security scanUpdated: 2026-03-22Protocol: v1.1

Description Quality

Composite: 1.7 / 10

3-Layer Breakdown

Description (38%)

1.7

Security (34%)

5.7

Metadata (28%)

7.9

Description Dimensions

Intent Clarity

1.9

Permission Scope

0.0

Side Effects

2.0

Capability Disclosure

3.2

Operational Boundaries

1.9

Security Analysis

5.7

Score

Critical

High

Medium

Low

Findings Redacted

Detailed security findings are hidden during the 90-day responsible disclosure window. Maintainers have been notified.

20 HIGH1 MEDIUM

Metadata Health

Provenance (40%)

9.0

Maintenance (35%)

7.0

Popularity (25%)

7.6

Badge

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