# Graph Render Viewer (cycle 0026, iteration 2) — Implementation Plan > **Parent spec:** `docs/specs/0026-graph-render-redesign.md` > > **For agentic workers:** REQUIRED SUB-SKILL: use the `implement` skill to run > this plan. Steps use `- [ ]` checkboxes for tracking. **Goal:** Replace `aura graph`'s ascii-dag output with a single self-contained HTML page — the ported prototype viewer (pin-graph via Graphviz-WASM) driven by the deterministic model serializer that shipped in iteration 1 — and retire `ascii-dag` from the workspace. Closes Gitea #51. **Architecture:** `aura graph` calls a new read-only `render_html(&Composite)` (crate `aura-cli`, module `render`) that concatenates the prototype's `` shell, the inlined vendored Graphviz-WASM + pan-zoom blobs, the inlined model JSON (`aura_engine::model_to_json`), and the inlined ported viewer JS into one `.html` on stdout. The viewer JS is the prototype's `genDot`/chrome **verbatim**, prefixed with a `normalizeModel` adapter that maps aura's real model tuple shape (post-0027 named inputs: `ins = [kind, firing, name]`, index node keys, `comp` references, `src_` sources) into the viewer's native shape. The old ascii-dag adapter (`graph.rs`), its dependency, the `--compiled`/`--macd` flag plumbing, and all 12 ascii-dag-asserting tests are deleted in one compile-coherent task. No `eval`/build on the render path (C9); no `serde` (C14); the four-colour palette stays the four scalar base types (C4); the viewer carries no authoring logic (C10). **Tech Stack:** `aura-cli` (`render.rs`, `main.rs`, `Cargo.toml`, `assets/`, `tests/cli_run.rs`), `aura-engine::model_to_json` (consumed, unchanged), `aura-core::node.rs` (stale-prose tidy), `docs/design/INDEX.md` (ledger note). Vendored JS/WASM assets are **checked in** (see Task 1 rationale). --- ## Files this plan creates or modifies - Create: `crates/aura-cli/assets/graph-viewer.js` — ported viewer (normalizeModel + verbatim genDot/chrome) - Create: `crates/aura-cli/assets/viz-standalone.js` — vendored `@viz-js/viz@3.7.0` (Graphviz-WASM, ~1.38 MB, checked in) - Create: `crates/aura-cli/assets/svg-pan-zoom.min.js` — vendored `svg-pan-zoom@3.6.1` (~30 KB, checked in) - Create: `crates/aura-cli/assets/refresh-assets.sh` — pinned-version refresh script (provenance; not run at build time) - Create: `crates/aura-cli/src/render.rs` — `render_html(&Composite) -> String` + smoke test - Modify: `crates/aura-cli/src/main.rs` — `mod render;`; flip `["graph"]` arm to `render_html`; delete `--compiled`/`--macd` graph arms, `render_compiled`, the `color` plumbing, `USAGE`; delete 12 ascii-dag tests + `swapped_point`/`sample_point` helpers; drop `mod graph;` - Modify: `crates/aura-cli/Cargo.toml:16` — remove `ascii-dag = "0.9.1"` - Delete: `crates/aura-cli/src/graph.rs` — the 504-line ascii-dag adapter (incl. the stale #43 comment at :324) - Modify: `crates/aura-cli/tests/cli_run.rs:164-185` — replace the ascii-dag fan-in test with the HTML-contract test - Modify: `crates/aura-core/src/node.rs:150-157,196-199` — re-justify two stale ascii-dag prose references - Modify: `docs/design/INDEX.md:694` — add the cycle-0026 render-redesign realization note --- ## Task 1: Vendor the assets + port the viewer JS **Vendoring decision (orchestrator call, deferred by the spec):** the blobs are **checked into the repo**, not git-ignored + fetched at build time. Substance: (a) `render_html` inlines the assets via `include_str!`, which requires them present at **compile time** — a build-time `unpkg` fetch makes the build non-hermetic and non-offline; (b) C8 freezes deploy artifacts and C1 demands determinism — a build that pulls a remote URL drifts with the registry and the network; (c) the shipped `.html` must be byte-deterministic for a given commit. A checked-in blob is the only shape satisfying all three. `refresh-assets.sh` records the pinned provenance for a future deliberate refresh; it is **not** part of the build. The ~1.4 MB cost is the price of a hermetic, frozen render asset. The validated blobs already exist on disk in the prototype dir — copy them (no network fetch in this task). **Files:** - Create: `crates/aura-cli/assets/viz-standalone.js` - Create: `crates/aura-cli/assets/svg-pan-zoom.min.js` - Create: `crates/aura-cli/assets/refresh-assets.sh` - Create: `crates/aura-cli/assets/graph-viewer.js` - [ ] **Step 1: Create the assets dir and copy the two vendored blobs from the prototype** Run: ```sh mkdir -p crates/aura-cli/assets cp docs/design/prototypes/graph-render/viz-standalone.js crates/aura-cli/assets/viz-standalone.js cp docs/design/prototypes/graph-render/svg-pan-zoom.min.js crates/aura-cli/assets/svg-pan-zoom.min.js wc -c crates/aura-cli/assets/viz-standalone.js crates/aura-cli/assets/svg-pan-zoom.min.js ``` Expected: `viz-standalone.js` ≈ `1379750` bytes, `svg-pan-zoom.min.js` ≈ `29768` bytes (both non-empty, copied). If the prototype blobs are absent (a clean checkout that never ran the prototype's `fetch-deps.sh`), fetch them instead with the pinned URLs from Step 3 below, then re-run the `wc -c` check. - [ ] **Step 2: Verify the assets are not git-ignored (they are checked in)** Run: ```sh git check-ignore crates/aura-cli/assets/viz-standalone.js crates/aura-cli/assets/svg-pan-zoom.min.js; echo "exit=$?" ``` Expected: `exit=1` (no path printed) — neither file is ignored, so both will be committed. If any path is printed, a parent `.gitignore` rule is catching them; do **not** add a crate-level `.gitignore` for these (unlike the prototype, the engine checks them in). - [ ] **Step 3: Create the provenance refresh script** Create `crates/aura-cli/assets/refresh-assets.sh`: ```sh #!/usr/bin/env bash # Refresh the vendored graph-viewer assets. NOT run at build time — the blobs are # checked into the repo so `include_str!` and the build stay hermetic/offline # (C1/C8). Run this only to deliberately bump a pinned version, then commit the # updated blobs. Mirrors the prototype's fetch-deps.sh. set -euo pipefail cd "$(dirname "$0")" curl -fsSL "https://unpkg.com/@viz-js/viz@3.7.0/lib/viz-standalone.js" -o viz-standalone.js curl -fsSL "https://unpkg.com/svg-pan-zoom@3.6.1/dist/svg-pan-zoom.min.js" -o svg-pan-zoom.min.js echo "refreshed: viz-standalone.js (@viz-js/viz@3.7.0), svg-pan-zoom.min.js (svg-pan-zoom@3.6.1)" ``` Run: ```sh chmod +x crates/aura-cli/assets/refresh-assets.sh head -1 crates/aura-cli/assets/refresh-assets.sh ``` Expected: `#!/usr/bin/env bash`. - [ ] **Step 4: Create the ported viewer `crates/aura-cli/assets/graph-viewer.js`** This is the prototype's `index.html` script (lines 43-256) **verbatim**, with the hardcoded model (prototype lines 52-100, the `F`/`I`/`P`/`C`/`COMP`/`ROOT` constants) replaced by `normalizeModel(window.AURA_MODEL)`. `genDot`, `cellLabel`, `addInfo`, the tooltip/interaction chrome, and `chrome()`/`show()` are unchanged. Create `crates/aura-cli/assets/graph-viewer.js`: ```js // aura graph viewer — ported from docs/design/prototypes/graph-render/index.html. // A render asset (C10): no node/strategy/experiment logic, no DSL. Reads aura's // emitted model (window.AURA_MODEL, injected by render_html) and draws a // homogeneous pin-graph via Graphviz-WASM. genDot/cellLabel/chrome are the // prototype verbatim; normalizeModel adapts aura's real tuple shape (post-0027 // named inputs) to the viewer's native shape. const TYPE_COLOR = { i64: "#f9e2af", f64: "#89b4fa", bool: "#a6e3a1", timestamp: "#cba6f7" }; const COLOR_TYPE = Object.fromEntries(Object.entries(TYPE_COLOR).map(([k, v]) => [v.toLowerCase(), k])); const PURPLE = "#5b4b8a", TEAL = "#2c5a5a", PLUS = "#7c6ba8"; const LEAF = "#45475a", SOURCE = "#2e5a3a", SINK = "#5a2e3e"; const bodyBgFor = (role) => role === "source" ? SOURCE : role === "sink" ? SINK : LEAF; const HEAD = `bgcolor="#16161a"; rankdir=TB; nodesep=0.5; ranksep=0.65; node [shape=plaintext, fontname="Courier", fontsize=12]; edge [penwidth=1.7, arrowsize=0.8];`; const col = (k) => TYPE_COLOR[k] || "#cdd6f4"; // === adapt aura's emitted model to the viewer's native shape ================= // aura input tuples are [kind, firing, name]; the viewer wants [name, kind, meta?] // (non-"any" firing surfaces in the tooltip). outs/params are already [name, kind]. // aura composite inputs are [kind, firing, name]; the viewer wants [name, kind]. // node keys (indices / "src_") and edge endpoints pass through unchanged. function adaptIns(ins) { return ins.map(([kind, firing, name]) => firing && firing !== "any" ? [name, kind, { firing }] : [name, kind]); } function adaptNodes(nodes) { const out = {}; for (const key in nodes) { const n = nodes[key]; if (n.prim) { const p = n.prim; out[key] = { prim: { type: p.type, role: p.role, params: p.params, ins: adaptIns(p.ins), outs: p.outs } }; } else { out[key] = n; // composite reference { comp } } } return out; } function normalizeModel(model) { const composites = {}; for (const cname in (model.composites || {})) { const c = model.composites[cname]; composites[cname] = { inputs: c.inputs.map(([kind, firing, name]) => [name, kind]), outputs: c.outputs, nodes: adaptNodes(c.nodes), edges: c.edges, }; } return { root: { inputs: [], outputs: [], nodes: adaptNodes(model.root.nodes), edges: model.root.edges }, composites, }; } const MODEL = normalizeModel(window.AURA_MODEL); const COMP = MODEL.composites; const ROOT = MODEL.root; // === ONE homogeneous, per-cell-addressable node template ===================== function cellLabel(id, o, showTypes) { const cols = Math.max(o.ins.length, o.outs.length, 1); const span = (n) => Math.max(1, Math.floor(cols / n)); const txt = (n, k) => (showTypes && k) ? `${n} : ${k}` : n; const cell = (io, arr) => ([n, k], i) => `${txt(n, k)}`; const sp = o.params.map(([n, k]) => `${showTypes && k ? `${n}:${k}` : n}`); const sig = o.params.length ? `(${sp.join(', ')})` : ""; const name = `${o.type}${sig}`; let bodyRow; if (o.composite) { bodyRow = `` + `` + `

${name}

`; } else { bodyRow = `${name}`; } let rows = ""; if (o.ins.length) rows += `${o.ins.map(cell("i", o.ins)).join("")}`; rows += bodyRow; if (o.outs.length) rows += `${o.outs.map(cell("o", o.outs)).join("")}`; return `<${rows}

>`; } function addInfo(INFO, id, o) { const ps = o.params && o.params.length ? o.params.map(([n, k]) => `\`${n}:${k}\``).join(", ") : "none"; INFO.B[id] = `**${o.type}** · ${o.role || "node"}\nparams: ${ps}`; (o.ins || []).forEach(([n, k, m], i) => INFO.P[`P_${id}_i${i}`] = `**${n}** · \`${k}\`` + (m && m.firing ? `\nfiring: \`${m.firing}\`` : "")); (o.outs || []).forEach(([n, k], i) => INFO.P[`P_${id}_o${i}`] = `**${n}** · \`${k}\``); } // === recursive DOT generator (the mini-inliner) ============================== function genDot(def, role, expandedSet, showTypes) { const INFO = { B: {}, P: {}, C: {} }, drill = {}, expandable = [], clusters = [], edges = [], topRank = [], bottomRank = []; function build(path, def, brole) { const childRes = {}; let block = ""; for (const key in def.nodes) { const inst = def.nodes[key], cpath = [...path, key], cid = cpath.join("__"); if (inst.prim) { const s = inst.prim; block += `${cid} [label=${cellLabel(cid, { type: s.type, params: s.params, ins: s.ins, outs: s.outs, bodyBg: bodyBgFor(s.role), composite: false }, showTypes)}];\n`; addInfo(INFO, cid, s); if (s.role === "source") topRank.push(cid); // sinks are placed freely (not rank-pinned) childRes[key] = { type: "leaf", id: cid, spec: s }; } else { const cname = inst.comp, cdef = COMP[cname]; if (expandedSet.has(cid)) { const sub = build(cpath, cdef, "cluster"); clusters.push(cid); INFO.C["clust_" + cid] = `**${cname}** · composite · click frame to collapse`; block += `subgraph cluster_${cid} { id="clust_${cid}"; style=filled; color="#5b4b8a"; fillcolor="#211c30"; penwidth=2;\n${sub.block}}\n`; childRes[key] = { type: "exp", resolveIn: sub.resolveIn, resolveOut: sub.resolveOut }; } else { block += `${cid} [label=${cellLabel(cid, { type: cname, params: [], ins: cdef.inputs, outs: cdef.outputs, bodyBg: PURPLE, composite: true }, showTypes)}];\n`; addInfo(INFO, cid, { type: cname, role: "composite", params: [], ins: cdef.inputs, outs: cdef.outputs }); drill[cid] = cname; expandable.push(cid); childRes[key] = { type: "opaque", id: cid, cdef }; } } } const pk = (r, io, idx) => r.type === "leaf" ? (io === "i" ? r.spec.ins : r.spec.outs)[idx][1] : (io === "i" ? r.cdef.inputs : r.cdef.outputs)[idx][1]; const resTarget = (ep) => { const [k, p] = ep.split("."); const idx = +p.slice(1), r = childRes[k]; return r.type === "exp" ? r.resolveIn(idx) : [{ id: r.id, port: "i" + idx, kind: pk(r, "i", idx) }]; }; const resSource = (ep) => { const [k, p] = ep.split("."); const idx = +p.slice(1), r = childRes[k]; return r.type === "exp" ? r.resolveOut(idx) : { id: r.id, port: "o" + idx, kind: pk(r, "o", idx) }; }; const resolveIn = (i) => { const rn = "@" + def.inputs[i][0]; return def.edges.filter(e => e[0] === rn).flatMap(e => resTarget(e[1])); }; const resolveOut = (i) => { const e = def.edges.find(e => e[1] === "#" + i); return resSource(e[0]); }; for (const [f, t] of def.edges) { if (f[0] === "@" || t[0] === "#") continue; const s = resSource(f); for (const d of resTarget(t)) edges.push([s, d]); } if (brole === "drill") { def.inputs.forEach(([rn, rk], i) => { const bid = `bin_${i}`; block += `${bid} [label=${cellLabel(bid, { type: rn, params: [], ins: [], outs: [[rn, rk]], bodyBg: SOURCE, composite: false }, showTypes)}];\n`; addInfo(INFO, bid, { type: rn, role: "input", params: [], ins: [], outs: [[rn, rk]] }); topRank.push(bid); resolveIn(i).forEach(d => edges.push([{ id: bid, port: "o0", kind: rk }, d])); }); def.outputs.forEach(([on, ok], i) => { const bid = `bout_${i}`; block += `${bid} [label=${cellLabel(bid, { type: on, params: [], ins: [[on, ok]], outs: [], bodyBg: SINK, composite: false }, showTypes)}];\n`; addInfo(INFO, bid, { type: on, role: "output", params: [], ins: [[on, ok]], outs: [] }); bottomRank.push(bid); edges.push([resolveOut(i), { id: bid, port: "i0", kind: ok }]); }); } return { block, resolveIn, resolveOut }; } const top = build([], def, role); let dot = `digraph g { ${HEAD}\n${top.block}`; // annotation by position: sources/inputs share the top rank, outputs the bottom rank. const rankRow = (ids, r, chain) => ids.length ? `{rank=${r};${ids.map(id => " " + id + ";").join("")}${chain && ids.length > 1 ? " " + ids.join(" -> ") + " [style=invis];" : ""}}\n` : ""; dot += rankRow(topRank, "min", true); dot += rankRow(bottomRank, "max", false); for (const [s, d] of edges) dot += `${s.id}:${s.port}:s -> ${d.id}:${d.port}:n [color="${TYPE_COLOR[s.kind] || "#7f849c"}"];\n`; return { dot: dot + "}", info: INFO, drill, expandable, clusters }; } // === styled tooltip + interaction ============================================ const tip = document.getElementById("tip"); const md = (s) => s.replace(/\*\*(.+?)\*\*/g, "$1").replace(/`(.+?)`/g, "$1").replace(/\n/g, "
"); function showTip(text, x, y) { tip.innerHTML = md(text); tip.style.display = "block"; const w = tip.offsetWidth, h = tip.offsetHeight; let l = x + 14, t = y + 16; if (l + w > innerWidth - 8) l = x - w - 14; if (t + h > innerHeight - 8) t = y - h - 16; tip.style.left = l + "px"; tip.style.top = t + "px"; } const hideTip = () => { tip.style.display = "none"; }; const stage = document.getElementById("stage"), crumbEl = document.getElementById("crumb"); let viz, viewStack = [{ name: "root", def: ROOT }], expanded = new Set(), SHOW_TYPES = false, INFO = { B: {}, P: {}, C: {} }; function chrome() { crumbEl.innerHTML = ""; viewStack.forEach((v, i) => { if (i) { const s = document.createElement("span"); s.className = "sep"; s.textContent = " › "; crumbEl.appendChild(s); } const a = document.createElement("a"); a.textContent = v.name; a.onclick = () => { viewStack = viewStack.slice(0, i + 1); expanded = new Set(); show(); }; crumbEl.appendChild(a); }); } function show() { const v = viewStack[viewStack.length - 1]; const G = genDot(v.def, v.name === "root" ? "root" : "drill", expanded, SHOW_TYPES); INFO = G.info; stage.innerHTML = ""; hideTip(); const svg = viz.renderSVGElement(G.dot); stage.appendChild(svg); const pz = svgPanZoom(svg, { zoomEnabled: true, controlIconsEnabled: true, fit: true, center: true, minZoom: 0.1, maxZoom: 12, dblClickZoomEnabled: false }); addEventListener("resize", () => { pz.resize(); pz.fit(); pz.center(); }); svg.querySelectorAll("title").forEach(t => t.remove()); svg.querySelectorAll("a").forEach(a => a.removeAttributeNS("http://www.w3.org/1999/xlink", "title")); const idOf = (el) => { const a = el.closest && el.closest("a[id], g[id]"); return a ? a.id.replace(/^a_/, "") : ""; }; svg.addEventListener("mousemove", (e) => { const id = idOf(e.target); if (id.startsWith("P_") && INFO.P[id]) return showTip(INFO.P[id], e.clientX, e.clientY); if (id.startsWith("B_")) { const k = id.slice(2); if (INFO.B[k]) return showTip(INFO.B[k], e.clientX, e.clientY); } if (id.startsWith("plus_")) return showTip("**expand** inline", e.clientX, e.clientY); if (id.startsWith("clust_") && INFO.C[id]) return showTip(INFO.C[id], e.clientX, e.clientY); const eg = e.target.closest && e.target.closest("g.edge"); if (eg) { const p = eg.querySelector("path"); const c = p && p.getAttribute("stroke") ? p.getAttribute("stroke").toLowerCase() : ""; return showTip("`" + (COLOR_TYPE[c] || "?") + "`", e.clientX, e.clientY); } hideTip(); }); svg.addEventListener("mouseleave", hideTip); svg.addEventListener("click", (e) => { const a = e.target.closest && e.target.closest("a"); if (a) e.preventDefault(); }); const click = (id, fn) => { const el = svg.getElementById(id) || svg.getElementById("a_" + id); if (el) { el.style.cursor = "pointer"; el.addEventListener("click", e => { e.preventDefault(); e.stopPropagation(); fn(); }); } }; for (const id in G.drill) click("B_" + id, () => { viewStack.push({ name: G.drill[id], def: COMP[G.drill[id]] }); expanded = new Set(); show(); }); for (const id of G.expandable) click("plus_" + id, () => { expanded.add(id); show(); }); for (const id of G.clusters) click("clust_" + id, () => { expanded.delete(id); show(); }); chrome(); } Viz.instance().then(v => { viz = v; show(); }).catch(e => { document.getElementById("err").textContent = String(e && e.stack || e); }); ``` - [ ] **Step 5: Sanity-check the viewer asset for the load-bearing markers** Run: ```sh grep -c "Viz.instance" crates/aura-cli/assets/graph-viewer.js grep -c "normalizeModel(window.AURA_MODEL)" crates/aura-cli/assets/graph-viewer.js grep -F 'i64: "#f9e2af"' crates/aura-cli/assets/graph-viewer.js | head -1 ``` Expected: first two print `1`; the third prints the palette line (C4 four-colour table present). These substrings are asserted by the Task 2 / Task 3 tests, so they must be present contiguously. --- ## Task 2: `render_html` module + smoke test (coexists with graph.rs) `render.rs` is a new module that compiles **alongside** the still-present `graph.rs` — no retirement yet, so the workspace stays green. `render_html` is read-only (C9): it calls `aura_engine::model_to_json` (a pure `&Composite -> String` walk) and string-concatenates the inlined assets. No `eval`, no build, no `serde`. **Files:** - Create: `crates/aura-cli/src/render.rs` - Modify: `crates/aura-cli/src/main.rs:9` (add `mod render;`) - Test: `crates/aura-cli/src/render.rs` (the `#[cfg(test)]` smoke test) - [ ] **Step 1: Create `crates/aura-cli/src/render.rs`** Create `crates/aura-cli/src/render.rs`: ```rust //! Self-contained HTML graph viewer assembly (C9: read-only render path). //! //! `render_html` walks the blueprint into the deterministic JSON model //! (`aura_engine::model_to_json`) and inlines it, the vendored Graphviz-WASM, the //! pan-zoom helper, and the ported viewer JS into one standalone `.html`. The //! emitted page fetches nothing at view time. No `eval`/build is on this path //! (C9); the model is hand-rolled JSON (C14, owned by `model_to_json`). use aura_core::Composite; /// The prototype's `` shell + body skeleton (header, stage, tooltip, error /// pane), verbatim from `docs/design/prototypes/graph-render/index.html` lines /// 1-38 — minus the two `\n\n\n\n\n\n"); html } #[cfg(test)] mod tests { use super::*; use crate::sample_blueprint; /// `aura graph`'s page is self-contained (no remote fetch), embeds the /// deterministic model as the viewer's data source, carries the Graphviz-WASM /// bootstrap, and keeps the C4 four-colour palette. Structural, not pixel: /// the DOT/SVG are Graphviz-version-dependent and are exercised by hand /// against the prototype (spec Testing strategy). #[test] fn render_html_is_self_contained_and_embeds_the_model() { let html = render_html(&sample_blueprint()); // a complete HTML document assert!(html.starts_with(""), "not an HTML doc"); assert!(html.trim_end().ends_with(""), "HTML doc not closed"); // self-contained: every asset is inlined, no remote