{"eval":{"version":"openagentskill-skill-eval-v1","slug":"nanobrowser-nanobrowser","name":"Nanobrowser","generated_at":"2026-08-22T22:20:14.684Z","task_input":"Evaluate Nanobrowser before installing it in an AI agent workflow","status":"failed","score":80,"risk_level":"high","decision":{"recommendation":"do_not_auto_install","reason":"Permission surface: secrets or environment access, filesystem or document access","auto_install_allowed":false,"policy":"block","human_review_required":true},"task_fit":{"score":84,"suited_tasks":["Browser automation workflows","Claude Code teams","teams that value GitHub adoption signals","Navigate pages","Click and type safely","Check visual and DOM state","Inspect source files","Explain architecture"],"suited_agents":["TypeScript","AI Agents","Codex","Claude Code","Cursor","OpenAgentSkill CLI","OpenAI Agents","Browser agents"]},"install":{"command":"npx skills add nanobrowser/nanobrowser","ready":true,"policy":"review","safety_label":"Avoid automatic install","targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install nanobrowser-nanobrowser"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Nanobrowser\" agent skill from https://github.com/nanobrowser/nanobrowser. 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: Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"nanobrowser-nanobrowser\",\"task\":\"Install Nanobrowser\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Nanobrowser\" as a Claude Code skill from https://github.com/nanobrowser/nanobrowser. 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: Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"nanobrowser-nanobrowser\",\"task\":\"Install Nanobrowser\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Nanobrowser\" from https://github.com/nanobrowser/nanobrowser 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: Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"nanobrowser-nanobrowser\",\"task\":\"Install Nanobrowser\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}]},"trust":{"score":84,"label":"Strong shortlist","version":"trust-score-v4","evidence":{"stars":"13K GitHub stars","repoActivity":"13K stars, 1.4K forks","lastPushed":"9mo since push","license":"Apache-2.0","repository":"https://github.com/nanobrowser/nanobrowser","install":"npx skills add nanobrowser/nanobrowser","installSafety":"standard package or runtime install path","permissionSurface":"secrets or environment access, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"}},"audit":{"score":85,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Permission surface needs review: secrets or environment access, filesystem or document access","Permission surface: secrets or environment access, filesystem or document access"]},"safety_gate":{"score":53,"tier":"experimental","label":"Experimental","auto_install_policy":"review","blocked":false,"permission_hints":[{"id":"browser","label":"Browser automation","reason":"Skill may drive a browser or interact with web pages.","severity":"medium"},{"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":"secrets","label":"Secrets or environment access","reason":"Skill metadata references credentials, tokens, environment variables, or secret-bearing workflows.","severity":"high"}],"policy_warnings":["High-risk permission hints: Secrets or environment access","Permission surface may require sandboxing"]},"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":84,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate Nanobrowser before installing it in an AI agent workflow","agent-frameworks","Browser 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 nanobrowser/nanobrowser"]},{"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 nanobrowser/nanobrowser"]},{"id":"trust_score","label":"Trust score","status":"pass","score":84,"required_for_auto_install":true,"detail":"Good trust signals with a few areas worth checking before rollout.","evidence":["Strong shortlist","13K GitHub stars","Apache-2.0"]},{"id":"audit_score","label":"Audit score","status":"warn","score":85,"required_for_auto_install":true,"detail":"Needs review","evidence":["Permission surface may require sandboxing"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":53,"required_for_auto_install":true,"detail":"Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","evidence":["Test manually in an isolated workspace and compare against safer alternatives.","High-risk permission hints: Secrets or environment access"]},{"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":"pass","score":86,"required_for_auto_install":true,"detail":"Apache-2.0","evidence":["Apache-2.0"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"warn","score":62,"required_for_auto_install":false,"detail":"9mo since push","evidence":["9mo since push"]},{"id":"permission_surface","label":"Permission surface","status":"fail","score":46,"required_for_auto_install":true,"detail":"secrets or environment access, filesystem or document access","evidence":["Browser automation: medium","Network access: medium","Filesystem access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"pass","score":82,"required_for_auto_install":false,"detail":"Alternative skills are available for comparison.","evidence":["firecrawl-firecrawl","agno-agi-agno","significant-gravitas-autogpt","nousresearch-hermes-agent"]}],"blockers":["Permission surface: secrets or environment access, filesystem or document access"],"warnings":["Audit score: Needs review","Agent safety gate: Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","Recent maintenance: 9mo since push","High-risk permission hints: Secrets or environment access","Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Permission surface needs review: secrets or environment access, filesystem or document access","Permission surface: secrets or environment access, filesystem or document 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","High-risk permission hints: Secrets or environment access","Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Permission surface needs review: secrets or environment access, filesystem or document access"],"alternatives":[{"slug":"firecrawl-firecrawl","name":"Firecrawl","url":"https://www.openagentskill.com/skills/firecrawl-firecrawl","stars":139273,"install_command":"npx skills add firecrawl/firecrawl","trust_score":89,"audit_score":92},{"slug":"agno-agi-agno","name":"Agno","url":"https://www.openagentskill.com/skills/agno-agi-agno","stars":41637,"install_command":"npx skills add agno-agi/agno","trust_score":90,"audit_score":94},{"slug":"significant-gravitas-autogpt","name":"AutoGPT","url":"https://www.openagentskill.com/skills/significant-gravitas-autogpt","stars":185599,"install_command":"npx skills add Significant-Gravitas/AutoGPT","trust_score":85,"audit_score":90},{"slug":"nousresearch-hermes-agent","name":"Hermes Agent","url":"https://www.openagentskill.com/skills/nousresearch-hermes-agent","stars":212819,"install_command":"npx skills add NousResearch/hermes-agent","trust_score":90,"audit_score":92}],"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"nanobrowser-nanobrowser","name":"Nanobrowser","description":"Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator.","category":"agent-frameworks","url":"https://www.openagentskill.com/skills/nanobrowser-nanobrowser","repository":"https://github.com/nanobrowser/nanobrowser","github_repo":"nanobrowser/nanobrowser"},"suited_tasks":["Browser automation workflows","Claude Code teams","teams that value GitHub adoption signals","Navigate pages","Click and type safely","Check visual and DOM state","Inspect source files","Explain architecture"],"suited_agents":["TypeScript","AI Agents","Codex","Claude Code","Cursor","OpenAgentSkill CLI","OpenAI Agents","Browser agents"],"install":{"command":"npx skills add nanobrowser/nanobrowser","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install nanobrowser-nanobrowser"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Nanobrowser\" agent skill from https://github.com/nanobrowser/nanobrowser. 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: Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"nanobrowser-nanobrowser\",\"task\":\"Install Nanobrowser\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Nanobrowser\" as a Claude Code skill from https://github.com/nanobrowser/nanobrowser. 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: Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"nanobrowser-nanobrowser\",\"task\":\"Install Nanobrowser\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Nanobrowser\" from https://github.com/nanobrowser/nanobrowser 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: Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"nanobrowser-nanobrowser\",\"task\":\"Install Nanobrowser\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/nanobrowser-nanobrowser/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/nanobrowser-nanobrowser"},"trust":{"score":84,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"13K GitHub stars","repoActivity":"13K stars, 1.4K forks","lastPushed":"9mo since push","license":"Apache-2.0","repository":"https://github.com/nanobrowser/nanobrowser","install":"npx skills add nanobrowser/nanobrowser","installSafety":"standard package or runtime install path","permissionSurface":"secrets or environment access, filesystem or document 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":["agent-frameworks","agents","ai-agents","agent","ai","ai-tools"],"known_risks":["Financial research output is not financial advice; require human review before any live investment decision.","Permission surface needs review: secrets or environment access, filesystem or document access","Permission surface: secrets or environment access, filesystem or document 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":85,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Permission surface needs review: secrets or environment access, filesystem or document access","Permission surface: secrets or environment access, filesystem or document access"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":96,"label":"Excellent"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"9mo since push","risk":"Needs review"},"alternative_skills":[{"slug":"firecrawl-firecrawl","name":"Firecrawl","url":"https://www.openagentskill.com/skills/firecrawl-firecrawl","stars":139273,"install_command":"npx skills add firecrawl/firecrawl","trust_score":89,"audit_score":92},{"slug":"agno-agi-agno","name":"Agno","url":"https://www.openagentskill.com/skills/agno-agi-agno","stars":41637,"install_command":"npx skills add agno-agi/agno","trust_score":90,"audit_score":94},{"slug":"significant-gravitas-autogpt","name":"AutoGPT","url":"https://www.openagentskill.com/skills/significant-gravitas-autogpt","stars":185599,"install_command":"npx skills add Significant-Gravitas/AutoGPT","trust_score":85,"audit_score":90},{"slug":"nousresearch-hermes-agent","name":"Hermes Agent","url":"https://www.openagentskill.com/skills/nousresearch-hermes-agent","stars":212819,"install_command":"npx skills add NousResearch/hermes-agent","trust_score":90,"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","High-risk permission hints: Secrets or environment access","Permission surface may require sandboxing","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Permission surface needs review: secrets or environment access, filesystem or document access"],"agent_contract":{"task_input":"Evaluate Nanobrowser before installing it in an AI agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 84/100 Strong shortlist","Audit: 85/100 Needs review","Safety: 53/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"nanobrowser-nanobrowser (Nanobrowser)","install_command":"npx skills add nanobrowser/nanobrowser","risk_summary":"Needs review; Experimental; 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":"nanobrowser-nanobrowser","task":"Evaluate Nanobrowser 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/nanobrowser-nanobrowser","api":"https://www.openagentskill.com/api/agent/skills/nanobrowser-nanobrowser","audit":"https://www.openagentskill.com/skills/nanobrowser-nanobrowser/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=nanobrowser-nanobrowser&task=Evaluate%20Nanobrowser%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Nanobrowser%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Evaluate%20Nanobrowser%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/nanobrowser-nanobrowser/install","manifest":"https://www.openagentskill.com/api/registry/manifest/nanobrowser-nanobrowser"}},"endpoints":{"web":"https://www.openagentskill.com/skills/nanobrowser-nanobrowser","api":"https://www.openagentskill.com/api/agent/skills/nanobrowser-nanobrowser","eval":"https://www.openagentskill.com/api/agent/evals?slug=nanobrowser-nanobrowser","audit":"https://www.openagentskill.com/skills/nanobrowser-nanobrowser/audit","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Nanobrowser%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":"2026-08-22T22:20:14.684Z"}}