---
title: Dependencies
---

```js
import {API, POLL_HEAVY, apiFetch, pollDelay, waitForVisible} from "./components/config.js";
import {normalizeWorkstreamStatus} from "./components/workplan-status.js";
```

```js
// Fetch workstreams + topics + dep edges; /state/deps replaces the heavier
// /state/summary which was only used here to extract dependency edges.
const depState = (async function*() {
  let failures = 0;
  while (true) {
    let wsMap = {}, edges = [], ok = false;
    try {
      const [rw, rto, rr, rd] = await Promise.all([
        apiFetch("/workplans/"),
        apiFetch("/topics/"),
        apiFetch("/repos/"),
        apiFetch("/state/deps"),
      ]);
      ok = rw.ok && rto.ok && rr.ok && rd.ok;
      if (ok) {
        const [wsList, topicList, repoList, depsList] = await Promise.all([
          rw.json(), rto.json(), rr.json(), rd.json(),
        ]);
        const topicMap = Object.fromEntries(topicList.map(t => [t.id, t]));
        const repoMap  = Object.fromEntries(repoList.map(r => [r.id, r]));
        wsMap = Object.fromEntries(wsList.map(w => [w.id, {
          ...w,
          status: normalizeWorkstreamStatus(w.status),
          // Prefer repo→domain (GEMS primary); fall back to topic→domain
          domain: repoMap[w.repo_id]?.domain_slug ?? topicMap[w.topic_id]?.domain_slug ?? "unknown",
        }]));
        for (const ow of depsList) {
          for (const depStub of (ow.depends_on ?? [])) {
            edges.push({from_id: ow.id, to_id: depStub});
          }
        }
      }
    } catch {}
    failures = ok ? 0 : failures + 1;
    yield {wsMap, edges, ok, ts: new Date()};
    await waitForVisible(pollDelay({ok, base: POLL_HEAVY, failures}));
  }
})();
```

```js
const wsMap = depState.wsMap ?? {};
const edges  = depState.edges  ?? [];
const _ok    = depState.ok     ?? false;
const _ts    = depState.ts;
```

# Dependencies

```js
import {injectTocTop} from "./components/toc-sidebar.js";
import {withDocHelp}  from "./components/doc-overlay.js";

// ── KPI sidebar card ──────────────────────────────────────────────────────────
const _wsWithDeps = new Set([...edges.map(e => e.from_id), ...edges.map(e => e.to_id)]);
const _kpiBox = html`<div class="kpi-infobox">
  <div class="kpi-infobox-title">Dependencies</div>
  <div class="kpi-row">
    <span class="kpi-row-label">edges</span>
    <div class="kpi-row-right"><div class="kpi-row-value">${edges.length}</div></div>
  </div>
  <div class="kpi-row">
    <span class="kpi-row-label">workstreams involved</span>
    <div class="kpi-row-right"><div class="kpi-row-value">${_wsWithDeps.size}</div></div>
  </div>
</div>`;

const _liveEl = html`<div class="live-indicator">
  <span style="color:${_ok ? 'var(--theme-foreground-focus)' : 'red'}">●</span>
  ${_ok
    ? `Live · updated ${_ts?.toLocaleTimeString()}`
    : html`<span style="color:red">Offline — run: <code>make api</code></span>`}
</div>`;

const _h1 = document.querySelector("#observablehq-main h1");
if (_h1) { _h1.style.position = "relative"; withDocHelp(_h1, "/docs/dependencies"); }

injectTocTop("dep-kpi-box", _kpiBox);
injectTocTop("live-indicator", _liveEl);
```

Directed edges between open workstreams. An edge **A → B** means A cannot
fully proceed until B reaches a satisfactory state.

```js
if (edges.length === 0) {
  display(html`<p class="dim">No dependency edges registered.</p>`);
} else {
  const rows = edges.map(e => {
    const from = wsMap[e.from_id];
    const to   = wsMap[e.to_id];
    return {
      from_domain:  from?.domain ?? "—",
      from_title:   from?.title  ?? e.from_id,
      from_status:  from?.status ?? "—",
      to_domain:    to?.domain   ?? "—",
      to_title:     to?.title    ?? e.to_id,
      to_status:    to?.status   ?? "—",
    };
  });

  display(html`<table class="dep-table">
    <thead>
      <tr>
        <th>Depends-on domain</th>
        <th>Depends-on workstream</th>
        <th></th>
        <th>Blocked-by domain</th>
        <th>Blocked-by workstream</th>
        <th>Status</th>
      </tr>
    </thead>
    <tbody>${rows.map(r => html`
      <tr>
        <td class="dep-domain">${r.from_domain}</td>
        <td class="dep-title">${r.from_title}</td>
        <td class="dep-arrow">→</td>
        <td class="dep-domain">${r.to_domain}</td>
        <td class="dep-title">${r.to_title}</td>
        <td><span class="dep-status dep-status-${r.to_status}">${r.to_status}</span></td>
      </tr>
    `)}</tbody>
  </table>`);
}
```

<style>
/* ── Live indicator ───────────────────────────────────────────────────────── */
.live-indicator { font-size: 0.8rem; color: gray; position: relative; padding: 0.55rem 1.8rem 0.55rem 0.7rem; margin-bottom: 0.75rem; }

/* ── KPI infobox ──────────────────────────────────────────────────────────── */
.kpi-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0.3rem 0; }
.kpi-row + .kpi-row { border-top: 1px solid var(--theme-foreground-faint, #eee); }
.kpi-row-label { font-size: 0.8rem; color: var(--theme-foreground-muted, #666); white-space: nowrap; }
.kpi-row-right { text-align: right; }
.kpi-row-value { font-size: 1.25rem; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.1; }

/* ── Dependency table ─────────────────────────────────────────────────────── */
.dep-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; margin-top: 0.5rem; }
.dep-table th { text-align: left; padding: 0.4rem 0.75rem; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--theme-foreground-muted, #888); border-bottom: 2px solid var(--theme-foreground-faint, #e0e0e0); }
.dep-table td { padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--theme-foreground-faint, #eee); vertical-align: middle; }
.dep-table tbody tr:hover { background: var(--theme-background-alt, #f9f9f9); }
.dep-domain { font-size: 0.75rem; color: var(--theme-foreground-muted, #888); white-space: nowrap; }
.dep-title  { font-weight: 500; max-width: 22rem; }
.dep-arrow  { text-align: center; color: var(--theme-foreground-faint, #bbb); font-size: 1rem; }
.dep-status { display: inline-block; padding: 0.1rem 0.45rem; border-radius: 10px; font-size: 0.7rem; font-weight: 500; }
.dep-status-proposed  { background: #fef3c7; color: #92400e; }
.dep-status-ready     { background: #e0f2fe; color: #075985; }
.dep-status-active    { background: #dcfce7; color: #166534; }
.dep-status-blocked   { background: #fee2e2; color: #991b1b; }
.dep-status-backlog   { background: #f1f5f9; color: #64748b; }
.dep-status-finished  { background: #f1f5f9; color: #475569; }
.dep-status-archived  { background: #f1f5f9; color: #9ca3af; }
.dim { color: gray; font-style: italic; }
</style>
