{"id":"014ade0e-a139-4338-91ba-d42a658dfb0c","shortId":"zbHD3g","kind":"skill","title":"backtesting-frameworks","tagline":"Build robust, production-grade backtesting systems that avoid common pitfalls and produce reliable strategy performance estimates.","description":"# Backtesting Frameworks\n\nBuild robust, production-grade backtesting systems that avoid common pitfalls and produce reliable strategy performance estimates.\n\n## Use this skill when\n\n- Developing trading strategy backtests\n- Building backtesting infrastructure\n- Validating strategy performance and robustness\n- Avoiding common backtesting biases\n- Implementing walk-forward analysis\n\n## Do not use this skill when\n\n- You need live trading execution or investment advice\n- Historical data quality is unknown or incomplete\n- The task is only a quick performance summary\n\n## Instructions\n\n- Define hypothesis, universe, timeframe, and evaluation criteria.\n- Build point-in-time data pipelines and realistic cost models.\n- Implement event-driven simulation and execution logic.\n- Use train/validation/test splits and walk-forward testing.\n- If detailed examples are required, open `resources/implementation-playbook.md`.\n\n## Safety\n\n- Do not present backtests as guarantees of future performance.\n- Avoid providing financial or investment advice.\n\n## Resources\n\n- `resources/implementation-playbook.md` for detailed patterns and examples.\n\n## Limitations\n- Use this skill only when the task clearly matches the scope described above.\n- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.\n- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.","tags":["backtesting","frameworks","antigravity","awesome","skills","sickn33","agent-skills","agentic-skills","ai-agent-skills","ai-agents","ai-coding","ai-workflows"],"capabilities":["skill","source-sickn33","skill-backtesting-frameworks","topic-agent-skills","topic-agentic-skills","topic-ai-agent-skills","topic-ai-agents","topic-ai-coding","topic-ai-workflows","topic-antigravity","topic-antigravity-skills","topic-claude-code","topic-claude-code-skills","topic-codex-cli","topic-codex-skills"],"categories":["antigravity-awesome-skills"],"synonyms":[],"warnings":[],"endpointUrl":"https://skills.sh/sickn33/antigravity-awesome-skills/backtesting-frameworks","protocol":"skill","transport":"skills-sh","auth":{"type":"none","details":{"cli":"npx skills add sickn33/antigravity-awesome-skills","source_repo":"https://github.com/sickn33/antigravity-awesome-skills","install_from":"skills.sh"}},"qualityScore":"0.700","qualityRationale":"deterministic score 0.70 from registry signals: · indexed on github topic:agent-skills · 34928 github stars · SKILL.md body (1,453 chars)","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"deterministic:skill-github:v1","enrichmentVersion":1,"enrichedAt":"2026-04-24T18:50:35.140Z","embedding":null,"createdAt":"2026-04-18T21:33:20.830Z","updatedAt":"2026-04-24T18:50:35.140Z","lastSeenAt":"2026-04-24T18:50:35.140Z","tsv":"'advic':78,151 'analysi':64 'ask':192 'avoid':12,31,56,146 'backtest':2,9,21,28,47,49,58,140 'backtesting-framework':1 'bias':59 'boundari':200 'build':4,23,48,102 'clarif':194 'clear':167 'common':13,32,57 'cost':111 'criteria':101,203 'data':80,107 'defin':95 'describ':171 'detail':130,155 'develop':44 'driven':116 'environ':183 'environment-specif':182 'estim':20,39 'evalu':100 'event':115 'event-driven':114 'exampl':131,158 'execut':75,119 'expert':188 'financi':148 'forward':63,127 'framework':3,22 'futur':144 'grade':8,27 'guarante':142 'histor':79 'hypothesi':96 'implement':60,113 'incomplet':85 'infrastructur':50 'input':197 'instruct':94 'invest':77,150 'limit':159 'live':73 'logic':120 'match':168 'miss':205 'model':112 'need':72 'open':134 'output':177 'pattern':156 'perform':19,38,53,92,145 'permiss':198 'pipelin':108 'pitfal':14,33 'point':104 'point-in-tim':103 'present':139 'produc':16,35 'product':7,26 'production-grad':6,25 'provid':147 'qualiti':81 'quick':91 'realist':110 'reliabl':17,36 'requir':133,196 'resourc':152 'resources/implementation-playbook.md':135,153 'review':189 'robust':5,24,55 'safeti':136,199 'scope':170 'simul':117 'skill':42,69,162 'skill-backtesting-frameworks' 'source-sickn33' 'specif':184 'split':123 'stop':190 'strategi':18,37,46,52 'substitut':180 'success':202 'summari':93 'system':10,29 'task':87,166 'test':128,186 'time':106 'timefram':98 'topic-agent-skills' 'topic-agentic-skills' 'topic-ai-agent-skills' 'topic-ai-agents' 'topic-ai-coding' 'topic-ai-workflows' 'topic-antigravity' 'topic-antigravity-skills' 'topic-claude-code' 'topic-claude-code-skills' 'topic-codex-cli' 'topic-codex-skills' 'trade':45,74 'train/validation/test':122 'treat':175 'univers':97 'unknown':83 'use':40,67,121,160 'valid':51,185 'walk':62,126 'walk-forward':61,125","prices":[{"id":"d0a0aa0b-98fa-472c-a01f-bab9bb1ca935","listingId":"014ade0e-a139-4338-91ba-d42a658dfb0c","amountUsd":"0","unit":"free","nativeCurrency":null,"nativeAmount":null,"chain":null,"payTo":null,"paymentMethod":"skill-free","isPrimary":true,"details":{"org":"sickn33","category":"antigravity-awesome-skills","install_from":"skills.sh"},"createdAt":"2026-04-18T21:33:20.830Z"}],"sources":[{"listingId":"014ade0e-a139-4338-91ba-d42a658dfb0c","source":"github","sourceId":"sickn33/antigravity-awesome-skills/backtesting-frameworks","sourceUrl":"https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/backtesting-frameworks","isPrimary":false,"firstSeenAt":"2026-04-18T21:33:20.830Z","lastSeenAt":"2026-04-24T18:50:35.140Z"}],"details":{"listingId":"014ade0e-a139-4338-91ba-d42a658dfb0c","quickStartSnippet":null,"exampleRequest":null,"exampleResponse":null,"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[],"useCases":[],"bestFor":[],"notFor":[],"kindDetails":{"org":"sickn33","slug":"backtesting-frameworks","github":{"repo":"sickn33/antigravity-awesome-skills","stars":34928,"topics":["agent-skills","agentic-skills","ai-agent-skills","ai-agents","ai-coding","ai-workflows","antigravity","antigravity-skills","claude-code","claude-code-skills","codex-cli","codex-skills","cursor","cursor-skills","developer-tools","gemini-cli","gemini-skills","kiro","mcp","skill-library"],"license":"mit","html_url":"https://github.com/sickn33/antigravity-awesome-skills","pushed_at":"2026-04-24T06:41:17Z","description":"Installable GitHub library of 1,400+ agentic skills for Claude Code, Cursor, Codex CLI, Gemini CLI, Antigravity, and more. Includes installer CLI, bundles, workflows, and official/community skill collections.","skill_md_sha":"d0e8dcbe2fa9884e53e5e173fb351b515e7349e1","skill_md_path":"skills/backtesting-frameworks/SKILL.md","default_branch":"main","skill_tree_url":"https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/backtesting-frameworks"},"layout":"multi","source":"github","category":"antigravity-awesome-skills","frontmatter":{"name":"backtesting-frameworks","description":"Build robust, production-grade backtesting systems that avoid common pitfalls and produce reliable strategy performance estimates."},"skills_sh_url":"https://skills.sh/sickn33/antigravity-awesome-skills/backtesting-frameworks"},"updatedAt":"2026-04-24T18:50:35.140Z"}}