# Price Action and Candlesticks — fintech-algorithms > 38 algorithms in 5 families, sliced out of the > fintech-algorithms reference. Zero-dependency TypeScript: plain arrays and objects in, > plain values out. This file covers D06 only. D06 · 38 topics · 5 families · 11 verified Install: npm install fintech-algorithms Agent skill (install it rather than re-deriving this file): npx skills add IslamBaraka90/Fintech-Algorithms-Library what it is: https://docs.thefintechbuilder.com/guides/agent-skill/ Source: fintech-algorithms@0.12.0 · payload schema 2.0.0 Reference payload: https://docs.thefintechbuilder.com/reference/payload.json Version endpoint: https://docs.thefintechbuilder.com/version.json Domain page: https://docs.thefintechbuilder.com/price-action-and-candlesticks/ Full index (324 topics across 13 domains): https://docs.thefintechbuilder.com/llms.txt Verification tiers: - verified — the worked example is the figure published in the algorithm's article, replayed and asserted by the test suite on every run. The arithmetic cannot drift without the build failing. Treat the numbers as reproducible. - contract — the module loads, the entry point is callable and its declared signature matches the compiled code. The example is real captured output, but no independently published figure asserts it. Treat the shape as reliable and the numbers as unattested. Full explanation: https://docs.thefintechbuilder.com/guides/verification/ Each entry: name — signature — archetype — verification tier — docs URL From the docs URL, mechanically: import subpath — swap the https://docs.thefintechbuilder.com/ prefix for fintech-algorithms/ and drop the trailing slash markdown page — append index.md; same contract as the HTML page, a fraction of the bytes ## D06-F01 — Candle Foundations https://docs.thefintechbuilder.com/price-action-and-candlesticks/candle-foundations/ - Candle Anatomy — `analyzeCandle(candle, directionEpsilon)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candle-foundations/candle-anatomy/ - Scale-Aware Body Classification — `classifyBody(observation, priorClosedBodies, configInput)` — row-classify — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candle-foundations/scale-aware-body-classification/ - Shadow-to-Body Ratio — `shadowToBodyRatio(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candle-foundations/shadow-to-body-ratio/ - Gap Classification — `gapClassification(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candle-foundations/gap-classification/ - Trend-Context Filter — `trendContextFilter(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candle-foundations/trend-context-filter/ ## D06-F02 — Single-Candle Patterns https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/ - Doji — `doji(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/doji/ - Dragonfly Doji — `dragonflyDoji(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/dragonfly-doji/ - Gravestone Doji — `gravestoneDoji(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/gravestone-doji/ - Marubozu — `marubozu(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/marubozu/ - Spinning Top — `spinningTop(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/spinning-top/ - Hammer — `hammer(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/hammer/ - Hanging Man — `hangingMan(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/hanging-man/ - Inverted Hammer — `invertedHammer(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/inverted-hammer/ - Shooting Star — `shootingStar(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/single-candle-patterns/shooting-star/ ## D06-F03 — Two-Candle Patterns https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/ - Bullish Engulfing — `bullishEngulfing(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/bullish-engulfing/ - Bearish Engulfing — `bearishEngulfing(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/bearish-engulfing/ - Bullish Harami — `bullishHarami(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/bullish-harami/ - Bearish Harami — `bearishHarami(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/bearish-harami/ - Piercing Line — `piercingLine(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/piercing-line/ - Dark Cloud Cover — `darkCloudCover(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/dark-cloud-cover/ - Tweezer Top — `tweezerTop(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/tweezer-top/ - Tweezer Bottom — `tweezerBottom(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/two-candle-patterns/tweezer-bottom/ ## D06-F04 — Multi-Candle Patterns https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/ - Morning Star — `morningStar(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/morning-star/ - Evening Star — `eveningStar(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/evening-star/ - Three White Soldiers — `threeWhiteSoldiers(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/three-white-soldiers/ - Three Black Crows — `threeBlackCrows(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/three-black-crows/ - Three Inside Up/Down — `threeInsideUpDown(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/three-inside-up-down/ - Three Outside Up/Down — `threeOutsideUpDown(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/three-outside-up-down/ - Abandoned Baby — `abandonedBaby(inputs)` — record-transform — contract — https://docs.thefintechbuilder.com/price-action-and-candlesticks/multi-candle-patterns/abandoned-baby/ ## D06-F05 — Candlestick Scanning and Context https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/ - Unified Candlestick Pattern Registry — `buildRegistry(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/unified-candlestick-pattern-registry/ - Candlestick Pattern Occurrence Contract — `makeOccurrence(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/candlestick-pattern-occurrence-contract/ - Market-Wide Candlestick Pattern Scanner — `scanMarket(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/market-wide-candlestick-pattern-scanner/ - Contextual Candlestick Confidence Score — `scoreContext(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/contextual-candlestick-confidence-score/ - Support/Resistance Pattern Context — `supportResistanceContext(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/support-resistance-pattern-context/ - Trend, Volatility, and Volume Pattern Context — `trendVolatilityVolumeContext(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/trend-volatility-and-volume-pattern-context/ - Overlapping-Pattern Conflict Resolver — `resolveConflicts(data)` — row-classify — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/overlapping-pattern-conflict-resolver/ - Candlestick Confirmation and Invalidation State Machine — `runConfirmationStateMachine(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/candlestick-confirmation-and-invalidation-state-machine/ - Candlestick Scanner Ranking and Deduplication — `rankAndDeduplicate(data)` — record-transform — verified — https://docs.thefintechbuilder.com/price-action-and-candlesticks/candlestick-scanning-and-context/candlestick-scanner-ranking-and-deduplication/