{"eval":{"version":"openagentskill-skill-eval-v1","slug":"openlink-virtuoso-opensource","name":"Virtuoso Opensource","generated_at":"2026-07-03T22:55:18.656Z","task_input":"Evaluate Virtuoso Opensource before installing it in an AI agent workflow","status":"review","score":79,"risk_level":"medium","decision":{"recommendation":"manual_review","reason":"Require human approval before installing into a real workspace.","auto_install_allowed":false,"policy":"review","human_review_required":true},"task_fit":{"score":94,"suited_tasks":["Workflow automation workflows","Claude Code teams","teams that value GitHub adoption signals","Move data between tools","Transform files","Trigger repeatable actions","Inspect source files","Explain architecture"],"suited_agents":["C","SQL","Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"]},"install":{"command":"npx skills add openlink/virtuoso-opensource","ready":true,"policy":"review","safety_label":"Review before install","targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx skills add openlink/virtuoso-opensource"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Virtuoso Opensource\" agent skill from https://github.com/openlink/virtuoso-opensource. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform"},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Virtuoso Opensource\" as a Claude Code skill from https://github.com/openlink/virtuoso-opensource. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform"},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Virtuoso Opensource\" from https://github.com/openlink/virtuoso-opensource into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform"}]},"trust":{"score":78,"label":"Strong shortlist","version":"trust-score-v4","evidence":{"stars":"963 GitHub stars","repoActivity":"963 stars, 226 forks","lastPushed":"22d since push","license":"Unknown","repository":"https://github.com/openlink/virtuoso-opensource","install":"npx skills add openlink/virtuoso-opensource","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"}},"audit":{"score":84,"risk_level":"needs_review","risk_label":"Needs review","warnings":["License is unclear","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","License clarity: Unknown","Permission surface: filesystem or document access, network or browser access"]},"safety_gate":{"score":64,"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","blocked":false,"permission_hints":[{"id":"network","label":"Network access","reason":"Skill likely fetches remote pages, APIs, repositories, or external services.","severity":"medium"},{"id":"filesystem","label":"Filesystem access","reason":"Skill may read or write project files, documents, generated artifacts, or local workspace state.","severity":"medium"},{"id":"database","label":"Database access","reason":"Skill may inspect schemas, query databases, or work with persistent stores.","severity":"medium"}],"policy_warnings":["License is unclear"]},"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":94,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate Virtuoso Opensource before installing it in an AI agent workflow","data-analysis","Workflow automation workflows; Claude Code teams; teams that value GitHub adoption signals"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add openlink/virtuoso-opensource"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add openlink/virtuoso-opensource"]},{"id":"trust_score","label":"Trust score","status":"warn","score":78,"required_for_auto_install":true,"detail":"Good trust signals with a few areas worth checking before rollout.","evidence":["Strong shortlist","963 GitHub stars","Unknown"]},{"id":"audit_score","label":"Audit score","status":"warn","score":84,"required_for_auto_install":true,"detail":"Needs review","evidence":["License is unclear"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":64,"required_for_auto_install":true,"detail":"Usable candidate, but the agent should surface permission and audit notes before installation.","evidence":["Require human approval before installing into a real workspace.","License is unclear"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"pass","score":90,"required_for_auto_install":false,"detail":"Metadata includes enough usage and workflow context","evidence":["Strong README/SKILL.md context"]},{"id":"license_clarity","label":"License clarity","status":"warn","score":42,"required_for_auto_install":true,"detail":"Unknown","evidence":["Unknown"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"22d since push","evidence":["22d since push"]},{"id":"permission_surface","label":"Permission surface","status":"warn","score":60,"required_for_auto_install":true,"detail":"filesystem or document access, network or browser access","evidence":["Network access: medium","Filesystem access: medium","Database access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"pass","score":82,"required_for_auto_install":false,"detail":"Alternative skills are available for comparison.","evidence":["d3-d3","grafana-grafana","apache-superset","apache-echarts"]}],"blockers":[],"warnings":["Trust score: Good trust signals with a few areas worth checking before rollout.","Audit score: Needs review","Agent safety gate: Usable candidate, but the agent should surface permission and audit notes before installation.","License clarity: Unknown","Permission surface: filesystem or document access, network or browser access","License is unclear","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No major risk signals from current metadata","License is unclear","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","License clarity: Unknown"],"alternatives":[{"slug":"d3-d3","name":"D3","url":"https://www.openagentskill.com/skills/d3-d3","stars":113096,"install_command":"npx skills add d3/d3","trust_score":89,"audit_score":91},{"slug":"grafana-grafana","name":"Grafana","url":"https://www.openagentskill.com/skills/grafana-grafana","stars":74422,"install_command":"npx skills add grafana/grafana","trust_score":92,"audit_score":94},{"slug":"apache-superset","name":"Superset","url":"https://www.openagentskill.com/skills/apache-superset","stars":73285,"install_command":"npx skills add apache/superset","trust_score":92,"audit_score":95},{"slug":"apache-echarts","name":"Echarts","url":"https://www.openagentskill.com/skills/apache-echarts","stars":66600,"install_command":"npx skills add apache/echarts","trust_score":91,"audit_score":92}],"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"openlink-virtuoso-opensource","name":"Virtuoso Opensource","description":"Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform","category":"data-analysis","url":"https://www.openagentskill.com/skills/openlink-virtuoso-opensource","repository":"https://github.com/openlink/virtuoso-opensource","github_repo":"openlink/virtuoso-opensource"},"suited_tasks":["Workflow automation workflows","Claude Code teams","teams that value GitHub adoption signals","Move data between tools","Transform files","Trigger repeatable actions","Inspect source files","Explain architecture"],"suited_agents":["C","SQL","Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add openlink/virtuoso-opensource","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx skills add openlink/virtuoso-opensource"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Virtuoso Opensource\" agent skill from https://github.com/openlink/virtuoso-opensource. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform"},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Virtuoso Opensource\" as a Claude Code skill from https://github.com/openlink/virtuoso-opensource. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform"},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Virtuoso Opensource\" from https://github.com/openlink/virtuoso-opensource into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Virtuoso is a high-performance and scalable Multi-Model RDBMS, Data Integration Middleware, Linked Data Deployment, and HTTP Application Server Platform"}],"handoff_url":"https://www.openagentskill.com/api/skills/openlink-virtuoso-opensource/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/openlink-virtuoso-opensource"},"trust":{"score":78,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"963 GitHub stars","repoActivity":"963 stars, 226 forks","lastPushed":"22d since push","license":"Unknown","repository":"https://github.com/openlink/virtuoso-opensource","install":"npx skills add openlink/virtuoso-opensource","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["data-analysis","sql","data","databases","sparql","virtuoso-server"],"known_risks":["License is unclear","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","License clarity: Unknown","Permission surface: filesystem or document access, network or browser access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":84,"risk_level":"needs_review","risk_label":"Needs review","warnings":["License is unclear","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","License clarity: Unknown","Permission surface: filesystem or document access, network or browser access"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission notes","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Require human approval before installing into a real workspace."},"quality":{"score":82,"label":"Strong"},"supply":{"track":"Research and knowledge work","scenario":"RAG and knowledge","maintenance":"22d since push","risk":"Needs review"},"alternative_skills":[{"slug":"d3-d3","name":"D3","url":"https://www.openagentskill.com/skills/d3-d3","stars":113096,"install_command":"npx skills add d3/d3","trust_score":89,"audit_score":91},{"slug":"grafana-grafana","name":"Grafana","url":"https://www.openagentskill.com/skills/grafana-grafana","stars":74422,"install_command":"npx skills add grafana/grafana","trust_score":92,"audit_score":94},{"slug":"apache-superset","name":"Superset","url":"https://www.openagentskill.com/skills/apache-superset","stars":73285,"install_command":"npx skills add apache/superset","trust_score":92,"audit_score":95},{"slug":"apache-echarts","name":"Echarts","url":"https://www.openagentskill.com/skills/apache-echarts","stars":66600,"install_command":"npx skills add apache/echarts","trust_score":91,"audit_score":92}],"do_not_use_when":["teams that need a vendor-supported SLA","high-compliance environments without internal security review","No major risk signals from current metadata","License is unclear","Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","License clarity: Unknown"],"agent_contract":{"task_input":"Evaluate Virtuoso Opensource before installing it in an AI agent workflow","recommended_action":"Require human approval before installing into a real workspace.","install_policy":"review","minimum_review_before_use":["Trust: 78/100 Strong shortlist","Audit: 84/100 Needs review","Safety: 64/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"openlink-virtuoso-opensource (Virtuoso Opensource)","install_command":"npx skills add openlink/virtuoso-opensource","risk_summary":"Needs review; Reviewed with permission notes; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"openlink-virtuoso-opensource","task":"Evaluate Virtuoso Opensource before installing it in an AI agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/openlink-virtuoso-opensource","api":"https://www.openagentskill.com/api/agent/skills/openlink-virtuoso-opensource","audit":"https://www.openagentskill.com/skills/openlink-virtuoso-opensource/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=openlink-virtuoso-opensource&task=Evaluate%20Virtuoso%20Opensource%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Virtuoso%20Opensource%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Evaluate%20Virtuoso%20Opensource%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/openlink-virtuoso-opensource/install","manifest":"https://www.openagentskill.com/api/registry/manifest/openlink-virtuoso-opensource"}},"endpoints":{"web":"https://www.openagentskill.com/skills/openlink-virtuoso-opensource","api":"https://www.openagentskill.com/api/agent/skills/openlink-virtuoso-opensource","eval":"https://www.openagentskill.com/api/agent/evals?slug=openlink-virtuoso-opensource","audit":"https://www.openagentskill.com/skills/openlink-virtuoso-opensource/audit","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Virtuoso%20Opensource%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium"}},"meta":{"endpoint":"/api/agent/evals","mode":"skill_eval","purpose":"Pre-install eval contract for a single skill. Agents should read this before installing a reusable skill.","generated_at":"2026-07-03T22:55:18.656Z"}}