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Real finite element analysis (CalculiX) as a remote MCP server: deterministic setup validation, async solve tasks, stress/FoS/modal results with rendered plots and a 3D viewer
The publisher performed an authenticated act of publication — proving control of a namespace in the official MCP registry, or appearing in a first-party catalogue an operator curates. That establishes WHO published it. It is not a security finding, and attested artifacts carry Flagged verdicts too.
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- mcp-fea
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
6 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.
v2.0.11
34 findings · 8.3s
v0.3.74
18 findings · 6.4s
v0.2.0
0 findings · 3.9s
v0.2.0
1 finding · 3.9s
v0.71.0
8 findings · 0.3s
v2.3.8
8 findings · 1.5s
v1.4.0
None of the entry points this scanner reads were found in this artifact. What each scanner covers
0 findings · 0.2s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 2.2s
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
2 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Sep 11, 2026 | Flagged45 | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·n/a: not applicable | completed |
| Jul 31, 2026 | Flagged74 | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·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 69 findings across every scanner that examined this package.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
27 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: YARA_prompt_injection_unicode_steganography, UNANALYZABLE_BINARY, OVERSIZED_FILE and 4 more · Files: /repo/demo/assets/modes.npz, /repo/demo/assets/demo.mp4, /repo/demo/SKILL.md and 2 more · reported by cisco-skill-scanner
5 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: AAK-SECRET-004, RESOURCE_ABUSE_INFINITE_LOOP, AAK-MCP-ROUTING-DESYNC-001 and 2 more · Files: tests/test_live.py, /repo/tests/wire.py, tests/test_protocol.py and 1 more · reported by agent-audit-kit, cisco-skill-scanner
2 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: AAK-GHA-IMMUTABLE-001 · Files: .github/workflows/ci.yml, .github/workflows/debug.yml · reported by agent-audit-kit
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.
6 AAK-TASKS-003
Files: src/server/tasks.py, src/server/handlers.py, src/server/tooldefs.py and 3 more · reported by agent-audit-kit
3 AAK-SECRET-004
Files: scripts/run_demo.py, scripts/measure_live.py, src/server/app.py · reported by agent-audit-kit
2 AAK-OAUTH-008
Files: server.json, src/server/app.py · reported by agent-audit-kit
2 CVE-2026-84381
Files: uv.lock · reported by trivy
2 GHSA-7mj9-2mp8-4m2p
Files: /repo/uv.lock · reported by osv-scanner
2 RESOURCE_ABUSE_INFINITE_LOOP
Files: /repo/scripts/run_demo.py, /repo/src/client/tasks_ext.py · reported by cisco-skill-scanner
1 AAK-OAUTH-3P-001
Files: pyproject.toml · reported by agent-audit-kit
1 CVE-2026-69247
Files: uv.lock · reported by trivy
1 CVE-2026-71554
Files: uv.lock · reported by trivy
1 CVE-2026-84378
Files: uv.lock · reported by trivy
1 CVE-2026-84379
Files: uv.lock · reported by trivy
1 CVE-2026-84380
Files: uv.lock · reported by trivy
1 CVE-2026-84382
Files: uv.lock · reported by trivy
1 DATA_EXFIL_NETWORK_REQUESTS
Files: /repo/src/pipeline/geometry.py · reported by cisco-skill-scanner
1 GHSA-8xx6-hgc6-gc2m
Files: /repo/uv.lock · reported by osv-scanner
1 GHSA-f2fp-rgf2-35cp
Files: /repo/uv.lock · reported by osv-scanner
1 GHSA-h4x7-gw46-3wm6
Files: /repo/uv.lock · reported by osv-scanner
1 GHSA-pf96-p4fj-6566
Files: /repo/uv.lock · reported by osv-scanner
1 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/README.md · reported by nerlo-install-instruction
1 PYSEC-2026-3552
Files: /repo/uv.lock · reported by osv-scanner
1 PYSEC-2026-3628
Files: /repo/uv.lock · reported by osv-scanner
1 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md · reported by cisco-skill-scanner
1 TOOL_ABUSE_UNDECLARED_NETWORK
Files: /repo/repo/CONTRIBUTING.md · reported by cisco-skill-scanner
High-severity findings include exposed credentials and resource abuse.
The artifact contains hardcoded credentials in `scripts/measure_live.py`, `scripts/run_demo.py`, and `src/server/app.py`, posing a credential access risk. Potential infinite loops in `scripts/run_demo.py` and `src/client/tasks_ext.py` could lead to resource exhaustion. Additionally, the artifact exhibits undeclared network egress and includes multiple high-severity vulnerabilities in its dependencies.
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.