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A simple mcp server with weather data!
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.
26 critical findings reported by cisco-skill-scanner. The composite score alone does not reflect this — read the per-scanner reports below.
This artifact ships from 2 sources and their verdicts differ. The worst is github (Flagged). Installing from a cleaner source does not mean the others are safe — check the source you actually install from.
github: https://github.com/saccdev12/weather-mcp-server, 387 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- weather-mcp-server
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.
v1.4.0
0 findings · 0.5s
v2.0.11
379 findings · 23.6s
v0.3.74
2 findings · 2.1s
v0.1.0
1 finding · 3.2s
v0.1.0
0 findings · 3.2s
v0.1.0
0 findings · 6.4s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 20, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source: complete | rejected |
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 382 findings across every scanner that examined this package. None of the 26 findings rated critical by their scanner were dismissed.
Not reviewed is not the same as clean. Those 294 findings stand exactly as their scanners reported them, at full severity, as they would have without this review.
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.
4 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: HIDDEN_EXECUTABLE_SCRIPT · Files: /repo/node_modules/node-domexception/.history/test_20210527210021.js, /repo/node_modules/node-domexception/.history/test_20210527205603.js, /repo/node_modules/node-domexception/.history/test_20210527205957.js · reported by cisco-skill-scanner
2 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_INVALID_NAME · Files: /repo/node_modules/function-bind/.github/SKILL.md · reported by cisco-skill-scanner
2 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: HIDDEN_EXECUTABLE_SCRIPT · Files: /repo/node_modules/node-domexception/.history/test_20210527205603.js, /repo/node_modules/node-domexception/.history/test_20210527210021.js · reported by cisco-skill-scanner
The model could have called any of these a false positive and did not.
64 LOW_ANALYZABILITY
Files: /repo/node_modules/range-parser, /repo/node_modules/accepts, /repo/node_modules/media-typer and 61 more · reported by cisco-skill-scanner
5 DATA_EXFIL_JS_NETWORK
Files: /repo/node_modules/node-fetch/@types/index.d.ts, /repo/node_modules/node-fetch/src/index.js, /repo/server.js · reported by cisco-skill-scanner
4 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/node_modules/send/index.js, /repo/node_modules/dotenv/lib/main.js · reported by cisco-skill-scanner
2 FILE_MAGIC_MISMATCH
Files: /repo/node_modules/node-fetch/src/errors/fetch-error.js · reported by cisco-skill-scanner
2 HIDDEN_DATA_FILE
Files: /repo/node_modules/.package-lock.json, /repo/.env · reported by cisco-skill-scanner
1 AAK-SECRET-006
Files: .env · reported by agent-audit-kit
280 The model called these false positives and our own check did not agree, so the dismissal was refused.
Rules: YARA_credential_harvesting_generic, COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR, COMMAND_INJECTION_EVAL and 6 more · Files: /repo/node_modules/dotenv/README-es.md, /repo/node_modules/dotenv/README.md, /repo/node_modules/function-bind/implementation.js and 132 more · reported by cisco-skill-scanner, agent-audit-kit
14 The review budget for this scan was already spent before these findings were reached.
Rules: MANIFEST_MISSING_LICENSE, LOW_ANALYZABILITY, MANIFEST_INVALID_NAME · Files: /repo/node_modules/function-bind/.github/SKILL.md, /repo/node_modules/data-uri-to-buffer, /repo and 11 more · reported by cisco-skill-scanner
Critical command injection and credential harvesting risks.
The artifact contains critical command injection vulnerabilities in `node_modules` files, which could lead to shell execution. Critical credential harvesting patterns were detected in `node_modules/dotenv` README files. Additionally, high severity findings indicate hidden executable scripts and potential for network egress of secrets.
Concern level assessed by the review: Critical. 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.
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/server.js · reported by nerlo-behavioral
Showing 25 of 25; the rest are in the per-scanner reports above.