{"eval":{"version":"openagentskill-skill-eval-v1","slug":"felix-lang-felix","name":"Felix","generated_at":"2026-07-04T01:11:22.004Z","task_input":"Evaluate Felix before installing it in an AI agent workflow","status":"review","score":60,"risk_level":"medium","decision":{"recommendation":"manual_review","reason":"Test manually in an isolated workspace and compare against safer alternatives.","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","Load football datasets","Compare teams and players"],"suited_agents":["C","Static Analysis","Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"]},"install":{"command":"npx skills add felix-lang/felix","ready":true,"policy":"review","safety_label":"Avoid automatic install","targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx skills add felix-lang/felix"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Felix\" agent skill from https://github.com/felix-lang/felix. 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: The Felix Programming Language"},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Felix\" as a Claude Code skill from https://github.com/felix-lang/felix. 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: The Felix Programming Language"},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Felix\" from https://github.com/felix-lang/felix 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: The Felix Programming Language"}]},"trust":{"score":69,"label":"Manual review","version":"trust-score-v4","evidence":{"stars":"817 GitHub stars","repoActivity":"817 stars, 47 forks","lastPushed":"2y since push","license":"Unknown","repository":"https://github.com/felix-lang/felix","install":"npx skills add felix-lang/felix","installSafety":"standard package or runtime install path","permissionSurface":"no high-risk permission surface in public metadata","documentation":"Thin public metadata","agentOutcomes":"No agent outcome data yet"}},"audit":{"score":63,"risk_level":"needs_review","risk_label":"Needs review","warnings":["License is unclear","Repository appears stale","Repository looks stale","Quality score needs review","Documentation summary is thin","Recent maintenance: 2y since push","License clarity: Unknown","README/SKILL.md completeness: Public metadata needs stronger README/SKILL.md context"]},"safety_gate":{"score":51,"tier":"experimental","label":"Experimental","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"}],"policy_warnings":["License is unclear"]},"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 Felix 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 felix-lang/felix"]},{"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 felix-lang/felix"]},{"id":"trust_score","label":"Trust score","status":"warn","score":69,"required_for_auto_install":true,"detail":"Potentially useful, but at least one trust signal needs human inspection.","evidence":["Manual review","817 GitHub stars","Unknown"]},{"id":"audit_score","label":"Audit score","status":"warn","score":63,"required_for_auto_install":true,"detail":"Needs review","evidence":["License is unclear"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":51,"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.","License is unclear"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"fail","score":50,"required_for_auto_install":false,"detail":"Public metadata needs stronger README/SKILL.md context","evidence":["Thin public metadata"]},{"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":"fail","score":38,"required_for_auto_install":false,"detail":"2y since push","evidence":["2y since push"]},{"id":"permission_surface","label":"Permission surface","status":"pass","score":100,"required_for_auto_install":true,"detail":"no high-risk permission surface in public metadata","evidence":["Network access: medium"]},{"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","juliusbrussee-caveman","sickn33-antigravity-awesome-skills"]}],"blockers":[],"warnings":["Trust score: Potentially useful, but at least one trust signal needs human inspection.","Audit score: Needs review","Agent safety gate: Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","License clarity: Unknown","License is unclear","Repository appears stale","Repository looks stale","Quality score needs review","Documentation summary is thin","Recent maintenance: 2y since push","README/SKILL.md completeness: Public metadata needs stronger README/SKILL.md context"],"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 require actively maintained dependencies","production agents without a repository review","Repository looks stale","License is unclear","Repository appears stale","Quality score needs review","Documentation summary is thin","Recent maintenance: 2y since push"],"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":"juliusbrussee-caveman","name":"Caveman","url":"https://www.openagentskill.com/skills/juliusbrussee-caveman","stars":82929,"install_command":"npx skills add JuliusBrussee/caveman","trust_score":90,"audit_score":93},{"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}],"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"felix-lang-felix","name":"Felix","description":"The Felix Programming Language","category":"development","url":"https://www.openagentskill.com/skills/felix-lang-felix","repository":"https://github.com/felix-lang/felix","github_repo":"felix-lang/felix"},"suited_tasks":["Coding agents workflows","Claude Code teams","teams that value GitHub adoption signals","Inspect source files","Explain architecture","Patch bugs and verify changes","Load football datasets","Compare teams and players"],"suited_agents":["C","Static Analysis","Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add felix-lang/felix","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx skills add felix-lang/felix"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"Felix\" agent skill from https://github.com/felix-lang/felix. 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: The Felix Programming Language"},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"Felix\" as a Claude Code skill from https://github.com/felix-lang/felix. 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: The Felix Programming Language"},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"Felix\" from https://github.com/felix-lang/felix 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: The Felix Programming Language"}],"handoff_url":"https://www.openagentskill.com/api/skills/felix-lang-felix/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/felix-lang-felix"},"trust":{"score":69,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"817 GitHub stars","repoActivity":"817 stars, 47 forks","lastPushed":"2y since push","license":"Unknown","repository":"https://github.com/felix-lang/felix","install":"npx skills add felix-lang/felix","installSafety":"standard package or runtime install path","permissionSurface":"no high-risk permission surface in public metadata","documentation":"Thin public metadata","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":["development","static-analysis","code-quality","c-plus-plus","code-generator","compiled"],"known_risks":["License is unclear","Repository looks stale","Quality score needs review","Documentation summary is thin","Recent maintenance: 2y since push","License clarity: Unknown","README/SKILL.md completeness: Public metadata needs stronger README/SKILL.md context"]},"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":63,"risk_level":"needs_review","risk_label":"Needs review","warnings":["License is unclear","Repository appears stale","Repository looks stale","Quality score needs review","Documentation summary is thin","Recent maintenance: 2y since push","License clarity: Unknown","README/SKILL.md completeness: Public metadata needs stronger README/SKILL.md context"]},"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":44,"label":"Needs review"},"supply":{"track":"Coding and developer agents","scenario":"Coding agents","maintenance":"2y since push","risk":"Needs review"},"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":"juliusbrussee-caveman","name":"Caveman","url":"https://www.openagentskill.com/skills/juliusbrussee-caveman","stars":82929,"install_command":"npx skills add JuliusBrussee/caveman","trust_score":90,"audit_score":93},{"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}],"do_not_use_when":["teams that require actively maintained dependencies","production agents without a repository review","Repository looks stale","License is unclear","Repository appears stale","Quality score needs review","Documentation summary is thin","Recent maintenance: 2y since push"],"agent_contract":{"task_input":"Evaluate Felix 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: 69/100 Manual review","Audit: 63/100 Needs review","Safety: 51/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"felix-lang-felix (Felix)","install_command":"npx skills add felix-lang/felix","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":"felix-lang-felix","task":"Evaluate Felix 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/felix-lang-felix","api":"https://www.openagentskill.com/api/agent/skills/felix-lang-felix","audit":"https://www.openagentskill.com/skills/felix-lang-felix/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=felix-lang-felix&task=Evaluate%20Felix%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Felix%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Evaluate%20Felix%20before%20installing%20it%20in%20an%20AI%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/felix-lang-felix/install","manifest":"https://www.openagentskill.com/api/registry/manifest/felix-lang-felix"}},"endpoints":{"web":"https://www.openagentskill.com/skills/felix-lang-felix","api":"https://www.openagentskill.com/api/agent/skills/felix-lang-felix","eval":"https://www.openagentskill.com/api/agent/evals?slug=felix-lang-felix","audit":"https://www.openagentskill.com/skills/felix-lang-felix/audit","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Evaluate%20Felix%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":"2026-07-04T01:11:22.004Z"}}