diff --git a/.agents/skills/release-changelog/SKILL.md b/.agents/skills/release-changelog/SKILL.md
index 55e7b360ea..022df4ae5b 100644
--- a/.agents/skills/release-changelog/SKILL.md
+++ b/.agents/skills/release-changelog/SKILL.md
@@ -168,6 +168,11 @@ Guidelines:
 - write from the user perspective
 - keep highlights short and concrete
 - spell out upgrade actions for breaking changes
+- **write at full stable depth from the first pass**: the beta-keyed
+  draft ships verbatim as the stable's notes, so the previous stable's
+  file is the density bar the moment the draft is first written — never
+  leave it at generated-skeleton density for the soak. The skeleton's
+  nested PR summaries are raw material to rewrite, not a format to keep.
 - **describe deltas, not repeats**: read the previous stable's notes
   (`releases/v<last-stable>.md`) before writing. When they already
   introduced a feature, this release's entry covers only what changed —
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 29abc996c5..1f0511e051 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -647,6 +647,9 @@ jobs:
     timeout-minutes: 10
     permissions:
       contents: write
+      # gh pr view needs PR read for the skeleton's nested summaries;
+      # without it the enrichment silently degrades to bare subjects.
+      pull-requests: read
     steps:
       - name: Checkout repository
         uses: actions/checkout@v7
@@ -661,6 +664,9 @@ jobs:
 
       - name: Draft stable notes from the published beta
         env:
+          # gh needs a token so the generator can nest each PR's summary
+          # under its subject line (best-effort thoroughness).
+          GH_TOKEN: ${{ github.token }}
           BETA_VERSION: ${{ needs.publish_beta.outputs.beta_version }}
           SOURCE_SHA: ${{ needs.select_beta.outputs.sha }}
         run: |
diff --git a/scripts/draft-stable-notes.sh b/scripts/draft-stable-notes.sh
index 5bd42e9ba1..45be29edc3 100755
--- a/scripts/draft-stable-notes.sh
+++ b/scripts/draft-stable-notes.sh
@@ -123,6 +123,26 @@ fi
 
 subjects="$(git -C "$repo_dir" log --no-merges --format='%s' "$range")"
 
+# Best-effort thoroughness: nest each referenced PR's own summary under its
+# subject line, so the skeleton is a genuinely thorough raw document at
+# creation time instead of a bare commit list. Prefers the PR template's
+# "What Changed" bullets, falls back to the first prose lines. Degrades
+# silently when gh or the network is unavailable (tests, offline runs);
+# set DRAFT_NOTES_SKIP_PR_ENRICHMENT=1 to disable explicitly.
+enrich_pr() {
+  local pr_num="$1" pr_body excerpt
+  [ "${DRAFT_NOTES_SKIP_PR_ENRICHMENT:-0}" = "1" ] && return 0
+  pr_body="$(cd "$repo_dir" && gh pr view "$pr_num" --json body --jq .body 2>/dev/null || true)"
+  [ -n "$pr_body" ] || return 0
+  if printf '%s\n' "$pr_body" | grep -q '^## What Changed'; then
+    excerpt="$(printf '%s\n' "$pr_body" | sed -n '/^## What Changed/,/^## /p' | grep -E '^- ' | head -3 || true)"
+  else
+    excerpt="$(printf '%s\n' "$pr_body" | grep -vE '^[[:space:]]*$|^#|^>|^<!--' | head -2 || true)"
+  fi
+  [ -n "$excerpt" ] || return 0
+  printf '%s\n' "$excerpt" | sed 's/^/  > /'
+}
+
 section() {
   local title="$1" pattern="$2" invert="${3:-false}" body
   if [ "$invert" = true ]; then
@@ -132,7 +152,14 @@ section() {
   fi
   [ -n "$body" ] || return 0
   printf '## %s\n\n' "$title"
-  printf '%s\n' "$body" | sed 's/^/- /'
+  while IFS= read -r subject_line; do
+    [ -n "$subject_line" ] || continue
+    printf -- '- %s\n' "$subject_line"
+    pr_ref="$(printf '%s' "$subject_line" | grep -oE '\(#[0-9]+\)$' | tr -dc '0-9' || true)"
+    if [ -n "$pr_ref" ]; then
+      enrich_pr "$pr_ref"
+    fi
+  done <<< "$body"
   printf '\n'
 }
 
diff --git a/scripts/draft-stable-notes.test.mjs b/scripts/draft-stable-notes.test.mjs
index 53479a8773..e0c38199eb 100644
--- a/scripts/draft-stable-notes.test.mjs
+++ b/scripts/draft-stable-notes.test.mjs
@@ -1,6 +1,6 @@
 import assert from "node:assert/strict";
 import { execFileSync } from "node:child_process";
-import { mkdtempSync, readFileSync } from "node:fs";
+import { mkdtempSync, readFileSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 import test from "node:test";
@@ -137,6 +137,76 @@ test("writes to releases/beta/v<version>.md inside the repo by default", () => {
   assert.match(body, /- feat: default path \(#1\)/);
 });
 
+test("nests PR summaries under subjects when gh can serve them", () => {
+  const dir = makeFixtureRepo();
+  commit(dir, "feat: enriched work (#42)");
+  git(dir, "tag", "beta/v2026.100.0-beta.0");
+
+  const binDir = join(dir, "fake-bin");
+  execFileSync("mkdir", ["-p", binDir]);
+  writeFileSync(
+    join(binDir, "gh"),
+    `#!/usr/bin/env bash
+echo "## Thinking Path"
+echo ""
+echo "## What Changed"
+echo ""
+echo "- Adds the enriched thing"
+echo "- Covers it with tests"
+echo ""
+echo "## Risks"
+`,
+    { mode: 0o755 }
+  );
+
+  const out = join(dir, "draft.md");
+  execFileSync(
+    "bash",
+    [script, "2026.100.0-beta.0", "--repo-dir", dir, "--out", out],
+    { encoding: "utf8", env: { ...process.env, PATH: `${binDir}:${process.env.PATH}` } }
+  );
+  const body = readFileSync(out, "utf8");
+  assert.match(body, /- feat: enriched work \(#42\)\n  > - Adds the enriched thing\n  > - Covers it with tests/);
+});
+
+test("survives a PR body whose What Changed section has no bullets", () => {
+  const dir = makeFixtureRepo();
+  commit(dir, "feat: sparse body (#9)");
+  git(dir, "tag", "beta/v2026.100.0-beta.0");
+
+  const binDir = join(dir, "fake-bin");
+  execFileSync("mkdir", ["-p", binDir]);
+  writeFileSync(
+    join(binDir, "gh"),
+    `#!/usr/bin/env bash
+echo "## What Changed"
+echo ""
+echo "## Risks"
+`,
+    { mode: 0o755 }
+  );
+
+  const out = join(dir, "draft.md");
+  execFileSync(
+    "bash",
+    [script, "2026.100.0-beta.0", "--repo-dir", dir, "--out", out],
+    { encoding: "utf8", env: { ...process.env, PATH: `${binDir}:${process.env.PATH}` } }
+  );
+  const body = readFileSync(out, "utf8");
+  assert.match(body, /- feat: sparse body \(#9\)\n/);
+});
+
+test("skeleton stays clean when enrichment is unavailable", () => {
+  const dir = makeFixtureRepo();
+  commit(dir, "feat: plain work (#7)");
+  git(dir, "tag", "beta/v2026.100.0-beta.0");
+
+  const { body } = runDraft(dir, "2026.100.0-beta.0");
+
+  assert.match(body, /- feat: plain work \(#7\)\n/);
+  assert.doesNotMatch(body, /  > /);
+});
+
 test("rejects a malformed beta version", () => {
   const dir = makeFixtureRepo();
   assert.throws(() =>