{"eval":{"version":"openagentskill-skill-eval-v1","slug":"juliusbrussee-caveman","name":"Caveman","generated_at":"2026-07-03T23:15:22.111Z","task_input":"Evaluate Caveman before installing it in an AI agent workflow","status":"review","score":87,"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":84,"suited_tasks":["Coding agents workflows","Claude Code teams","teams that value GitHub adoption signals","Inspect source files","Explain architecture","Patch bugs and verify changes","Chunk documents","Create embeddings"],"suited_agents":["JavaScript","Claude Code","Codex","Cursor","OpenAgentSkill CLI","CLI"]},"install":{"command":"npx skills add JuliusBrussee/caveman","ready":true,"policy":"review","safety_label":"Review before install","targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx skills add JuliusBrussee/caveman"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Caveman\" agent skill from https://github.com/JuliusBrussee/caveman. 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: 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman"},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Caveman\" as a Claude Code skill from https://github.com/JuliusBrussee/caveman. 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: 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman"},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Caveman\" from https://github.com/JuliusBrussee/caveman 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: 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman"}]},"trust":{"score":90,"label":"Production candidate","version":"trust-score-v4","evidence":{"stars":"83K GitHub stars","repoActivity":"83K stars, 4.6K forks","lastPushed":"Pushed today","license":"MIT","repository":"https://github.com/JuliusBrussee/caveman","install":"npx skills add JuliusBrussee/caveman","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":93,"risk_level":"safe_to_try","risk_label":"Safe to try","warnings":["Permission surface may require sandboxing","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":65,"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":"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 Caveman before installing it in an AI agent workflow","development","Coding agents 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 JuliusBrussee/caveman"]},{"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 JuliusBrussee/caveman"]},{"id":"trust_score","label":"Trust score","status":"pass","score":90,"required_for_auto_install":true,"detail":"Strong OpenAgentSkill Trust Score across adoption, recent maintenance, license clarity, documentation, dependency/runtime risk, install safety, permission surface, and install availability.","evidence":["Production candidate","83K GitHub stars","MIT"]},{"id":"audit_score","label":"Audit score","status":"pass","score":93,"required_for_auto_install":true,"detail":"Safe to try","evidence":["Permission surface may require sandboxing"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":65,"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.","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":"MIT","evidence":["MIT"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"Pushed today","evidence":["Pushed today"]},{"id":"permission_surface","label":"Permission surface","status":"warn","score":60,"required_for_auto_install":true,"detail":"secrets or environment access, filesystem or document access","evidence":["Network access: medium","Filesystem access: medium","Secrets or environment access: high"]},{"id":"alternatives","label":"Alternatives available","status":"pass","score":82,"required_for_auto_install":false,"detail":"Alternative skills are available for comparison.","evidence":["google-gemini-gemini-cli","x1xhlol-system-prompts-and-models-of-ai-tools","sickn33-antigravity-awesome-skills","santifer-career-ops"]}],"blockers":[],"warnings":["Agent safety gate: Usable candidate, but the agent should surface permission and audit notes before installation.","Permission surface: secrets or environment access, filesystem or document access","High-risk permission hints: Secrets or environment access","Permission surface may require sandboxing","Permission surface needs review: 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","Permission surface needs review: secrets or environment access, filesystem or document access","Permission surface: secrets or environment access, filesystem or document access","Production credentials, payments, or irreversible account changes without explicit human review"],"alternatives":[{"slug":"google-gemini-gemini-cli","name":"Gemini CLI","url":"https://www.openagentskill.com/skills/google-gemini-gemini-cli","stars":105720,"install_command":"npx skills add google-gemini/gemini-cli","trust_score":83,"audit_score":89},{"slug":"x1xhlol-system-prompts-and-models-of-ai-tools","name":"System Prompts And Models Of AI Tools","url":"https://www.openagentskill.com/skills/x1xhlol-system-prompts-and-models-of-ai-tools","stars":141169,"install_command":"npx skills add x1xhlol/system-prompts-and-models-of-ai-tools","trust_score":94,"audit_score":96},{"slug":"sickn33-antigravity-awesome-skills","name":"Antigravity Awesome Skills","url":"https://www.openagentskill.com/skills/sickn33-antigravity-awesome-skills","stars":42248,"install_command":"npx skills add sickn33/antigravity-awesome-skills","trust_score":88,"audit_score":91},{"slug":"santifer-career-ops","name":"Career Ops","url":"https://www.openagentskill.com/skills/santifer-career-ops","stars":58343,"install_command":"npx skills add santifer/career-ops","trust_score":90,"audit_score":93}],"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"juliusbrussee-caveman","name":"Caveman","description":"🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman","category":"development","url":"https://www.openagentskill.com/skills/juliusbrussee-caveman","repository":"https://github.com/JuliusBrussee/caveman","github_repo":"JuliusBrussee/caveman"},"suited_tasks":["Coding agents workflows","Claude Code teams","teams that value GitHub adoption signals","Inspect source files","Explain architecture","Patch bugs and verify changes","Chunk documents","Create embeddings"],"suited_agents":["JavaScript","Claude Code","Codex","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add JuliusBrussee/caveman","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx skills add JuliusBrussee/caveman"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Caveman\" agent skill from https://github.com/JuliusBrussee/caveman. 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: 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman"},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Caveman\" as a Claude Code skill from https://github.com/JuliusBrussee/caveman. 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: 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman"},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Caveman\" from https://github.com/JuliusBrussee/caveman 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: 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman"}],"handoff_url":"https://www.openagentskill.com/api/skills/juliusbrussee-caveman/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/juliusbrussee-caveman"},"trust":{"score":90,"label":"Production candidate","version":"trust-score-v4","install_policy":"agent_install_candidate","evidence":{"stars":"83K GitHub stars","repoActivity":"83K stars, 4.6K forks","lastPushed":"Pushed today","license":"MIT","repository":"https://github.com/JuliusBrussee/caveman","install":"npx skills add JuliusBrussee/caveman","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":true,"sandbox_required":true,"reason":"Trust Score v4 allows sandbox-first agent installation after normal workspace review."},"best_for":["development","claude-code","agent-skills","developer-tools","ai","anthropic"],"known_risks":["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":93,"risk_level":"safe_to_try","risk_label":"Safe to try","warnings":["Permission surface may require sandboxing","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":"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":100,"label":"Excellent"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"Pushed today","risk":"Safe to try"},"alternative_skills":[{"slug":"google-gemini-gemini-cli","name":"Gemini CLI","url":"https://www.openagentskill.com/skills/google-gemini-gemini-cli","stars":105720,"install_command":"npx skills add google-gemini/gemini-cli","trust_score":83,"audit_score":89},{"slug":"x1xhlol-system-prompts-and-models-of-ai-tools","name":"System Prompts And Models Of AI Tools","url":"https://www.openagentskill.com/skills/x1xhlol-system-prompts-and-models-of-ai-tools","stars":141169,"install_command":"npx skills add x1xhlol/system-prompts-and-models-of-ai-tools","trust_score":94,"audit_score":96},{"slug":"sickn33-antigravity-awesome-skills","name":"Antigravity Awesome Skills","url":"https://www.openagentskill.com/skills/sickn33-antigravity-awesome-skills","stars":42248,"install_command":"npx skills add sickn33/antigravity-awesome-skills","trust_score":88,"audit_score":91},{"slug":"santifer-career-ops","name":"Career Ops","url":"https://www.openagentskill.com/skills/santifer-career-ops","stars":58343,"install_command":"npx skills add santifer/career-ops","trust_score":90,"audit_score":93}],"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","Permission surface needs review: secrets or environment access, filesystem or document access","Permission surface: secrets or environment access, filesystem or document access","Production credentials, payments, or irreversible account changes without explicit human review"],"agent_contract":{"task_input":"Evaluate Caveman 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: 90/100 Production candidate","Audit: 93/100 Safe to try","Safety: 65/100 Review before install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"juliusbrussee-caveman (Caveman)","install_command":"npx skills add JuliusBrussee/caveman","risk_summary":"Safe to try; 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":"juliusbrussee-caveman","task":"Evaluate Caveman 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/juliusbrussee-caveman","api":"https://www.openagentskill.com/api/agent/skills/juliusbrussee-caveman","audit":"https://www.openagentskill.com/skills/juliusbrussee-caveman/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=juliusbrussee-caveman&task=Evaluate%20Caveman%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Caveman%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Evaluate%20Caveman%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/juliusbrussee-caveman/install","manifest":"https://www.openagentskill.com/api/registry/manifest/juliusbrussee-caveman"}},"endpoints":{"web":"https://www.openagentskill.com/skills/juliusbrussee-caveman","api":"https://www.openagentskill.com/api/agent/skills/juliusbrussee-caveman","eval":"https://www.openagentskill.com/api/agent/evals?slug=juliusbrussee-caveman","audit":"https://www.openagentskill.com/skills/juliusbrussee-caveman/audit","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Caveman%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":"2026-07-03T23:15:22.111Z"}}