Initial commit: LangChain evolution tutorial deck (132 slides)

- Cover, TOC, 5 dividers, 3 recap slides - 5 sections (chains, langgraph, deepagents, openswe, ecosystem) - design-system.js with theme tokens + 9 helper functions - research/: timeline + sources + per-tech notes - final-compile.js + merge.js for rebuild pipeline - output/: langchain-evolution.pptx (2.3 MB) + langchain-evolution.pdf (1.1 MB) + 7 sample previews
2026-06-22 11:29:03 +03:00
parent ed5b5c91bf
commit 75601988c2
220 changed files with 13069 additions and 3 deletions
@@ -0,0 +1,96 @@
+/**
+ * slides/19-three-graphs.js
+ * ----------------------------------------------------------------------------
+ * Slide 19 -- Three graphs: agent / reviewer / analyzer
+ * Multi-graph architecture.
+ */
+'use strict';
+
+const { helpers, layouts } = require('../../design-system');
+
+function buildThreeGraphs(pres, theme) {
+  const slide = pres.addSlide();
+  helpers.slideBase(slide, pres, theme);
+  helpers.addHeader(slide, pres, theme, {
+    eyebrow: 'STAGE 4',
+    sectionNumber: 4,
+    title: 'Three graphs',
+  });
+
+  const graphs = [
+    {
+      name: 'agent graph',
+      desc: 'Основной deep-agent: planner + coder + tools + subagents.',
+      nodes: 'START -> plan -> execute -> review -> open_pr -> END',
+    },
+    {
+      name: 'reviewer graph',
+      desc: 'CI-стиль: lint, type-check, tests, security-scan. Без LLM-агента.',
+      nodes: 'START -> run_ci -> parse -> report -> END',
+    },
+    {
+      name: 'analyzer graph',
+      desc: 'Анализ ретроспективы: что заняло больше шагов, где loop, где cost spikes.',
+      nodes: 'START -> load_trace -> aggregate -> summarize -> END',
+    },
+  ];
+
+  const cardY = layouts.CONTENT_TOP;
+  const cardW = 9.0;
+  const cardH = 1.05;
+  const gap = 0.13;
+
+  graphs.forEach(function (g, idx) {
+    const cy = cardY + idx * (cardH + gap);
+
+    slide.addShape(pres.ShapeType.roundRect, {
+      x: 0.5, y: cy, w: cardW, h: cardH,
+      fill: { color: theme.palette.bg.elevated },
+      line: { color: theme.palette.border.subtle, width: 0.75 },
+      rectRadius: 0.08,
+    });
+
+    // Name badge
+    slide.addShape(pres.ShapeType.rect, {
+      x: 0.6, y: cy + 0.12, w: 2.4, h: 0.4,
+      fill: { color: theme.palette.accent.primary },
+      line: { color: theme.palette.accent.primary, width: 1 },
+      rectRadius: 0.04,
+    });
+    slide.addText(g.name, {
+      x: 0.6, y: cy + 0.12, w: 2.4, h: 0.4,
+      fontFace: helpers.withFallback(theme.fonts.code),
+      fontSize: theme.sizes.code,
+      color: theme.palette.text.inverse,
+      bold: true,
+      align: 'center',
+      valign: 'middle',
+    });
+
+    // Desc
+    slide.addText(g.desc, {
+      x: 3.1, y: cy + 0.1, w: 6.3, h: 0.4,
+      fontFace: helpers.withFallback(theme.fonts.ui),
+      fontSize: theme.sizes.body,
+      color: theme.palette.text.secondary,
+      valign: 'middle',
+    });
+
+    // Node line
+    slide.addText(g.nodes, {
+      x: 0.6, y: cy + 0.6, w: cardW - 0.2, h: 0.4,
+      fontFace: helpers.withFallback(theme.fonts.code),
+      fontSize: theme.sizes.code,
+      color: theme.palette.text.primary,
+      valign: 'middle',
+    });
+  });
+
+  helpers.addPageNumber(slide, pres, theme, 19);
+  helpers.addSourceLine(slide, pres, theme, {
+    source: 'research/per-tech/openswe.md: 165, 226-247',
+  });
+  return slide;
+}
+
+module.exports = { buildThreeGraphs };