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One shared, durable memory for all your AI coding agents — MCP, local-first, zero-dependency.
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.
27 critical findings reported by cisco-skill-scanner, agent-audit-kit, 25 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
github: https://github.com/VonderVuflya/yggdrasil, 172 findings
Choose your runtime: the CLI writes the mcpServers config entry for that target.
nerlo install --target claude-code -- yggdrasil-memory
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
4 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
108 findings · 9.6s
v0.3.26
25 findings · 5.5s
v0.1.0
11 findings · 29.5s
v0.1.0
3 findings · 29.5s
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
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image, nerlo-multi-source.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 9, 2026 | Scan Halted | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicable | 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 147 findings across every scanner that examined this package. 2 of 27 findings rated critical by their scanner were among the dismissals.
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.
10 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, SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE · Files: /repo/docs/demo.gif, /repo/docs/SKILL.md · 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-003, AAK-SECRET-008, AAK-SECRET-004 and 1 more · Files: tests/test_ygg_memory_server.py, tests/test_config.py, /repo/tests/test_ygg_memory_server.py · reported by agent-audit-kit, cisco-skill-scanner
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.
40 DATA_EXFIL_NETWORK_REQUESTS
Files: /repo/yggdrasil/cli.py, /repo/yggdrasil/hooks/ygg_session_start.py, /repo/yggdrasil/hooks/ygg_user_prompt.py and 11 more · reported by cisco-skill-scanner
11 opt.nerlo-rules.nerlo-py-secret-to-network-egress
Files: /repo/yggdrasil/cli.py, /repo/yggdrasil/hooks/ygg_session_start.py, /repo/yggdrasil/hooks/ygg_user_prompt.py and 5 more · reported by nerlo-behavioral
10 COMMAND_INJECTION_JS_CHILD_PROCESS
Files: /repo/clients/npm/bin/ygg.js · reported by cisco-skill-scanner
10 COMMAND_INJECTION_OS_SYSTEM
Files: /repo/yggdrasil/service.py, /repo/yggdrasil/ygg_seed.py · reported by cisco-skill-scanner
10 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md, /repo/skills/SKILL.md, /repo/i18n/SKILL.md and 7 more · reported by cisco-skill-scanner
Artifact allows shell execution, SQL injection, and exposes credentials.
The artifact contains multiple critical vulnerabilities, including shell execution capabilities via command injection in `/repo/clients/npm/bin/ygg.js` and `/repo/yggdrasil/service.py`, and SQL injection in `/repo/yggdrasil/ygg_memory_server.py`. It also exposes credentials in `yggdrasil/ygg_quality_gate.py`. Additionally, the artifact exhibits high-severity network egress with secret exposure and potential for arbitrary shell execution during installation.
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.
Files: /repo/SKILL.md, /repo/skills/SKILL.md, /repo/i18n/SKILL.md and 6 more · reported by cisco-skill-scanner
8 HIDDEN_DATA_FILE
Files: /repo/.cursor-plugin/plugin.json, /repo/.agents/plugins/marketplace.json, /repo/.codex-plugin/mcp.json and 5 more · reported by cisco-skill-scanner
4 AAK-MARKETPLACE-001
Files: .codex-plugin/marketplace.json, .cursor-plugin/marketplace.json, .claude-plugin/marketplace.json and 1 more · reported by agent-audit-kit
3 AAK-HEALTHCARE-AI-004
Files: CHANGELOG.md, integrations/AGENTS.yggdrasil.md, packaging/mcpb/README.md · reported by agent-audit-kit
3 AAK-MCP-007
Files: .codex-plugin/mcp.json · reported by agent-audit-kit
3 AAK-SECRET-004
Files: scripts/run_gates.sh, yggdrasil/ygg_quality_gate.py · reported by agent-audit-kit
3 SQL_INJECTION_STRING_FORMAT
Files: /repo/yggdrasil/ygg_memory_server.py · reported by cisco-skill-scanner
2 AAK-SECRET-002
Files: yggdrasil/ygg_quality_gate.py · reported by agent-audit-kit
2 opt.nerlo-rules.nerlo-install-pipe-to-shell
Files: /repo/BENCHMARKS.md, /repo/RELEASING.md · reported by nerlo-install-instruction
2 PIPELINE_TAINT_FLOW
Files: /repo/RELEASING.md, /repo/SKILL.md · reported by cisco-skill-scanner
1 AAK-MCP-003
Files: integrations/mcp.yggdrasil.example.json · reported by agent-audit-kit
1 AAK-MCP-005
Files: .codex-plugin/mcp.json · reported by agent-audit-kit
1 AAK-OAUTH-005
Files: yggdrasil/ygg_http_mcp.py · reported by agent-audit-kit
1 AAK-SEC-MD-001
Files: SECURITY.md · reported by agent-audit-kit
1 AAK-SECRET-007
Files: integrations/mcp.yggdrasil.example.json · reported by agent-audit-kit
1 AAK-SUPPLY-004
Files: pyproject.toml · reported by agent-audit-kit
1 DATA_EXFIL_SENSITIVE_FILES
Files: /repo/yggdrasil/ygg_memory_server.py · reported by cisco-skill-scanner
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo/clients/npm · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/README.md · reported by nerlo-install-instruction
1 RESOURCE_ABUSE_INFINITE_LOOP
Files: /repo/yggdrasil/ygg_providers.py · reported by cisco-skill-scanner
1 TOOL_ABUSE_UNDECLARED_NETWORK
Files: /repo/repo/BENCHMARKS.md · reported by cisco-skill-scanner
Showing 25 of 49; the rest are in the per-scanner reports above.