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Magic MCP UI builder by 21st.dev
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
github_release: https://github.com/21st-dev/magic-mcp, 0 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- @21st-dev/magic
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
7 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
2 findings · 0.5s
v2.0.11
7 findings · 6.2s
v0.3.74
6 findings · 0.7s
v0.2.0
1 finding · 3.2s
v0.2.0
0 findings · 3.2s
v0.1.0
0 findings · 11.8s
v2.3.8
8 findings · 6.5s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.71.0
No dependency manifest or lockfile was found in this artifact. What each scanner covers
0 findings · 0.2s
v0.71.0
No container image was published for this artifact. What each scanner covers
0 findings · 0.0s
vv1.6.0
No Go modules were found in this artifact. What each scanner covers
0 findings · 0.1s
12 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Sep 11, 2026 | Flagged41 | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source: completetrivy ·n/a: not applicableosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·n/a: not applicable | completed |
| Aug 1, 2026 | Flagged54 | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source: completetrivy ·n/a: not applicableosv-scanner: complete | completed |
| Jul 30, 2026 | Flagged53 | — | cisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source: completetrivy ·n/a: not applicableosv-scanner: completetrivy_image ·n/a: not applicable | completed |
| Jul 21, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: complete | rejected |
| Jul 21, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: complete | rejected |
| Jul 21, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral ·!: incompletenerlo-install-instruction ·!: incomplete | rejected |
| Jul 20, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-install-instruction ·!: incomplete | rejected |
| Jul 20, 2026 | Scan Halted | Clean → Flagged | agentshield: completecisco-skill-scanner: completeagent-audit-kit: complete | rejected |
| Jul 20, 2026 | Clean100 | — | agentshield ·n/a: not applicablecisco-skill-scanner ·n/a: not applicableagent-audit-kit: completetrivy: completeosv-scanner ·n/a: not applicable | completed |
| Jul 20, 2026 | Clean100 | — | agentshield ·n/a: not applicablecisco-skill-scanner ·n/a: not applicableagent-audit-kit: completetrivy: completeosv-scanner ·n/a: not applicable | completed |
| Jul 20, 2026 | Clean100 | — | agentshield ·n/a: not applicablecisco-skill-scanner ·n/a: not applicableagent-audit-kit: completetrivy: completeosv-scanner ·n/a: not applicable | completed |
| Jul 20, 2026 | Clean100 | — | agentshield ·n/a: not applicablecisco-skill-scanner ·n/a: not applicableagent-audit-kit: completetrivy: completeosv-scanner ·n/a: not applicable | completed |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 24 findings across every scanner that examined this package.
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
3 HIDDEN_DATA_FILE
Files: /repo/.cursor-plugin/plugin.json, /repo/.agents/plugins/marketplace.json, /repo/.codex-plugin/plugin.json · reported by cisco-skill-scanner
2 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json, .agents/plugins/marketplace.json · reported by agent-audit-kit
2 AAK-MCP-ATTEST-001
Files: .mcp.json, mcp.json · reported by agent-audit-kit
2 MANIFEST_MISSING_LICENSE
Files: /repo/skills/21st-ui/SKILL.md, /repo/SKILL.md · reported by cisco-skill-scanner
1 AAK-SEC-MD-001
Files: SECURITY.md · reported by agent-audit-kit
1 AAK-SPLUNK-TOKLOG-001
Files: src/index.ts · reported by agent-audit-kit
1 DATA_EXFIL_JS_NETWORK
Files: /repo/src/index.ts · reported by cisco-skill-scanner
1 GHSA-23c5-xmqv-rm74
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-3jxr-9vmj-r5cp
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-3ppc-4f35-3m26
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-7r86-cg39-jmmj
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-f886-m6hf-6m8v
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-mh99-v99m-4gvg
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-rgw5-rvv9-x895
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-v6h2-p8h4-qcjw
Files: /repo/package-lock.json · reported by osv-scanner
1 mcp-no-desc-21st
Files: mcp.json · reported by agentshield
1 mcp-url-transport-21st
Files: mcp.json · reported by agentshield
1 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/src/index.ts · reported by nerlo-behavioral
1 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md · reported by cisco-skill-scanner
High-severity vulnerabilities and network egress detected.
The artifact contains multiple high-severity vulnerabilities in its dependencies, as indicated in `package-lock.json`. It performs network egress from `src/index.ts` and `mcp.json`. Additionally, the artifact accesses marketplace configuration files and Splunk token logs within `src/index.ts`.
Concern level assessed by the review: High. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.