{"id":"e09255dc-2e42-41eb-91bb-b2c5c7ec0ba6","shortId":"yvm2u9","kind":"skill","title":"coingecko-historical","tagline":"This skill should be used when the user asks to \"open CoinGecko historical data\", \"show historical price on date X\", \"open coingecko historical page\", or wants to view the CoinGecko historical-data page for a coin around a given date in their default browser.","description":"# CoinGecko Historical\n\nOpen the CoinGecko historical-data page for a coin in the user's default browser, centered on a one-day window around a target date.\n\n## Arguments\n\n- **coin-id** (required): CoinGecko coin slug (e.g., `bitcoin`, `ethereum`, `solana`). This is the same ID used by the CoinGecko API and the `cg` CLI — *not* the ticker symbol. If the user provides only a symbol or name, resolve it first (e.g., `cg search <term> -o json` or `https://api.coingecko.com/api/v3/search?query=<term>`).\n- **date** (required): Target date in `YYYY-MM-DD` format.\n\n## Behavior\n\nCompute `DATE-1` (the day before `date`) and `DATE+1` (the day after `date`), then open:\n\n```\nhttps://coingecko.com/en/coins/<coin-id>/historical_data?start=<DATE-1>&end=<DATE+1>\n```\n\nUse the macOS `open` command:\n\n```bash\nopen \"https://coingecko.com/en/coins/<coin-id>/historical_data?start=<DATE-1>&end=<DATE+1>\"\n```\n\n### Date arithmetic\n\nUse GNU/BSD `date` to compute the surrounding days. BSD `date` (default on macOS) syntax:\n\n```bash\nstart=$(date -j -v-1d -f \"%Y-%m-%d\" \"$DATE\" +%Y-%m-%d)\nend=$(date -j -v+1d -f \"%Y-%m-%d\" \"$DATE\" +%Y-%m-%d)\n```\n\n## Example\n\nUser invokes: `/coingecko-historical bitcoin 2024-03-14`\n\nRun:\n\n```bash\nopen \"https://coingecko.com/en/coins/bitcoin/historical_data?start=2024-03-13&end=2024-03-15\"\n```\n\n## Notes\n\n- `open` is macOS-only. On Linux substitute `xdg-open`; on Windows use `start`.\n- Validate the date format before computing offsets; stop and ask the user if `date` is missing or malformed.","tags":["coingecko","historical","agent","skills","paulrberg","agent-skills","ai-agents"],"capabilities":["skill","source-paulrberg","skill-coingecko-historical","topic-agent-skills","topic-ai-agents"],"categories":["agent-skills"],"synonyms":[],"warnings":[],"endpointUrl":"https://skills.sh/PaulRBerg/agent-skills/coingecko-historical","protocol":"skill","transport":"skills-sh","auth":{"type":"none","details":{"cli":"npx skills add PaulRBerg/agent-skills","source_repo":"https://github.com/PaulRBerg/agent-skills","install_from":"skills.sh"}},"qualityScore":"0.478","qualityRationale":"deterministic score 0.48 from registry signals: · indexed on github topic:agent-skills · 56 github stars · SKILL.md body (1,512 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":"2026-05-18T18:57:36.035Z","embedding":null,"createdAt":"2026-05-12T12:57:56.035Z","updatedAt":"2026-05-18T18:57:36.035Z","lastSeenAt":"2026-05-18T18:57:36.035Z","tsv":"'+1':149,163,178,214 '-03':230 '-1':142 '-14':231 '/api/v3/search?query=':128 '/coingecko-historical':227 '/en/coins/':158,173 '/en/coins/bitcoin/historical_data?start=2024-03-13&end=2024-03-15':237 '/historical_data':159,174 '1d':201 '2024':229 'api':99 'api.coingecko.com':127 'api.coingecko.com/api/v3/search?query=':126 'argument':78 'arithmet':180 'around':41,74 'ask':12,263 'bash':169,195,233 'behavior':139 'bitcoin':87,228 'browser':48,66 'bsd':189 'center':67 'cg':102,121 'cli':103 'coin':40,60,80,84 'coin-id':79 'coingecko':2,15,25,33,49,53,83,98 'coingecko-histor':1 'coingecko.com':157,172,236 'coingecko.com/en/coins/':156,171 'coingecko.com/en/coins/bitcoin/historical_data?start=2024-03-13&end=2024-03-15':235 'command':168 'comput':140,185,259 'd':205,209,215,219,223 'data':17,36,56 'date':22,44,77,129,132,141,146,148,153,162,177,179,183,190,197,206,211,220,256,267 'day':72,144,151,188 'dd':137 'default':47,65,191 'e.g':86,120 'end':161,176,210 'ethereum':88 'exampl':224 'f':202,216 'first':119 'format':138,257 'given':43 'gnu/bsd':182 'histor':3,16,19,26,35,50,55 'historical-data':34,54 'id':81,94 'invok':226 'j':198,212 'json':124 'linux':245 'm':204,208,218,222 'maco':166,193,242 'macos-on':241 'malform':271 'miss':269 'mm':136 'name':116 'note':238 'o':123 'offset':260 'one':71 'one-day':70 'open':14,24,51,155,167,170,234,239,249 'page':27,37,57 'price':20 'provid':111 'requir':82,130 'resolv':117 'run':232 'search':122 'show':18 'skill':5 'skill-coingecko-historical' 'slug':85 'solana':89 'source-paulrberg' 'start':160,175,196,253 'stop':261 'substitut':246 'surround':187 'symbol':107,114 'syntax':194 'target':76,131 'ticker':106 'topic-agent-skills' 'topic-ai-agents' 'use':8,95,164,181,252 'user':11,63,110,225,265 'v':200,213 'v-1d':199 'valid':254 'view':31 'want':29 'window':73,251 'x':23 'xdg':248 'xdg-open':247 'y':203,207,217,221 'yyyi':135 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