docs(evidence): re-verify the THREE carrier PRs #91/#131/#138 against current main and live (2026-08-21, lane 1)

.lane/reports/lane1-agent-desk-canonical-pr-reconcile-rereverify-2026-08-21.md

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+# Lane 1 — Reconcile the THREE agent-desk-canonical PRs #91/#131/#138 — re-verify (2026-08-21)
+
+Lane: tinystudio-io lane 1
+Branch: `lane1/agent-desk-canonical-pr-reconcile-rereverify-2026-08-21`
+Item: `ba5fb5fb58` — "[unreviewed-by-opus] Reconcile the THREE open
+agent-desk-canonical PRs #91/#131/#138 — #105's declared survivor #9"
+(truncated at dispatch; the trailing "#9" is a typo in the dispatch for
+"#91" — the survivor is PR #91 per the backlog source and PR #105's
+reconciliation table)
+
+## Outcome
+
+**Closed (already reconciled upstream).** The THREE carrier PRs
+#91/#131/#138 are no longer a duplicate open-PR cluster on this
+surface: #131 and #138 were closed by PR #157 on 2026-08-12, #91 was
+closed in the post-#229 sweep (the cleaner-URL survivor superseded the
+older `.html`-URL form), and the underlying fix is on `origin/main`
+head `92d55c3` via PR #229 (commit `798cd71`, merged 2026-08-17). The
+canonical `<link rel="canonical" href="https://tinystudio.io/agent-desk">`
+plus matching `<meta property="og:url">` are present on source and
+live, md5-for-md5 (`3310f720f1b9234970327ba35c52da94`). No code change
+was needed; this lane lands the re-verification receipt.
+
+## What this lane checked
+
+The lane reads the truncated item text as: "the THREE open
+agent-desk-canonical PRs #91/#131/#138 need to be reconciled to
+#105's declared survivor" — i.e. the duplicate-PR cluster on the
+retired `/agent-desk` surface where multiple lanes re-created the
+identical `public/agent-desk.html` canonical/og:url fix. The lane
+therefore:
+
+1. Re-checks the open/closed state of each of the THREE PRs against
+   the reconciliation receipts and the most-recent backlog.
+2. Re-checks that the substantive fix is on `origin/main` head
+   `92d55c3` (source check) and on the live deployment (live check).
+3. Re-checks that the regression guard in `scripts/check-site.mjs`
+   enforces the correct canonical / og:url pair.
+
+## Files changed
+
+- `docs/evidence/agent-desk-canonical-pr-reconcile-rereverify-2026-08-21-lane1.md` —
+  full re-verification receipt (history table, per-PR state, byte-diff
+  of the carried fix, source check, live check, regression-guard check,
+  static checks/tests, reproduce, non-claims, relationship to other
+  receipts).
+- `.lane/reports/lane1-agent-desk-canonical-pr-reconcile-rereverify-2026-08-21.md` —
+  this report.
+
+## What I verified (this run, 2026-08-21)
+
+- `git ls-remote origin refs/pull/{91,131,138}/head` → all three head
+  refs still resolve (closed PRs retain their head refs).
+- `git diff origin/main...refs/pull/{91,131,138}/head -- public/agent-desk.html`
+  → byte-identical hunks across all three (canonical + og:url moved from
+  `https://tinystudio.io/` to `https://tinystudio.io/agent-desk.html`).
+- `git diff origin/main...refs/pull/229/head -- public/agent-desk.html`
+  → the same logical fix but with the cleaner `https://tinystudio.io/agent-desk`
+  URL (no `.html`), matching `origin/main` head `92d55c3`.
+- `git log -1 --format='%H' origin/main -- public/agent-desk.html`
+  → `798cd71a86e5171cedb1819e6b462ee54580f2b7` (PR #229 is the last
+  commit that touched the legacy page; nothing between `798cd71` and
+  `92d55c3` has touched the file).
+- `md5sum public/agent-desk.html` on disk =
+  `3310f720f1b9234970327ba35c52da94`;
+  `curl -sL https://tinystudio.io/agent-desk | md5sum` over the wire =
+  `3310f720f1b9234970327ba35c52da94` (live bytes md5-match source).
+- `node scripts/check-site.mjs` → "TinyStudio.io checks passed."
+- `node --test` over the six test files → 124 / 124 pass.
+- `git diff --check` clean.
+
+## What I did NOT do
+
+- **Did not close any GitHub PR.** All THREE PRs are already closed
+  per the reconciliation receipts and the most-recent backlog
+  annotation; closing them again would be a no-op. The substantive
+  fix is on main via PR #229; the duplicate-PR cluster on this
+  surface is gone.
+- **Did not push code, schema, infra, or production state.** This
+  lane is docs-only (a re-verification receipt + this lane report).
+- **Did not claim a Google SERP change.** The fix is a site-side
+  correction; Google's recrawl and site-name refresh run on Google's
+  timetable.
+
+## Relationship to other receipts
+
+This re-verification complements (does not overlap):
+
+- `docs/evidence/agent-desk-canonical-pr-reconcile-2026-08-12.md`
+  (PR #157) — closed #84/#131/#138 with #91 as the survivor.
+- `docs/evidence/agent-desk-canonical-pr-reconcile-2026-08-14.md`
+  (PR #198) — closed #187 as duplicate of #91.
+- `docs/evidence/agent-desk-canonical-apex-rereverify-2026-08-17.md`
+  and `docs/evidence/agent-desk-canonical-apex-rereverify-2026-08-21.md`
+  — site-side re-verification that the canonical is on source and live.
+
+This lane lands the process-evidence re-verification: the THREE
+carrier PRs are reconciled, the substantive fix is on main, the
+guard enforces it, and the live bytes md5-match the source.
+
+## Non-claim
+
+No Google SERP change is claimed; no new closure is claimed (the PRs
+are already closed); no merge is performed (the substantive merge
+was PR #229 on 2026-08-17, four days before this re-verification).
+The honest claim is the source + live + PR-queue state documented in
+the linked receipt.

docs/evidence/agent-desk-canonical-pr-reconcile-rereverify-2026-08-21-lane1.md

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+# Retired Agent Desk canonical — re-verify the THREE carrier PRs #91/#131/#138 against current main and the live deployment (2026-08-21, lane 1)
+
+Date: 2026-08-21
+Scope: dispatch item `ba5fb5fb58` — "[unreviewed-by-opus] Reconcile the
+THREE open agent-desk-canonical PRs #91/#131/#138 — #105's declared
+survivor #9" (the trailing token in the dispatch reads "#9" but the
+backlog source and the `gh pr view` snapshots name PR #91 as the
+declared survivor of PR #105; the typo is in the dispatch only). This
+receipt is process evidence — a state verification of the repository's
+pull requests plus a reconciliation-history re-verification — not a
+live-index measurement.
+
+Verdict in one line: **the THREE carrier PRs are no longer a duplicate
+open-PR cluster — #131 and #138 were closed by PR #157 on 2026-08-12,
+the underlying fix is on `origin/main` (head `92d55c3`) via PR #229
+(commit `798cd71`, merged 2026-08-17), and the canonical
+`<link rel="canonical" href="https://tinystudio.io/agent-desk" />` plus
+matching `<meta property="og:url">` are present on source and live,
+md5-for-md5. There is nothing left to reconcile on this surface.**
+
+## The reconciliation history (state-of-the-art)
+
+| Date | PR / commit | What happened |
+|---|---|---|
+| 2026-08-11 | PR #105 (a30f2ad1) | First reconcile: closed #54/#59/#61/#53; declared **#91** the survivor for the agent-desk canonical fix |
+| 2026-08-12 | PR #157 (ed6dbb03) | Second reconcile: refreshed #91 onto current main, closed #84/#131/#138 with comments naming #91 as the survivor |
+| 2026-08-14 | PR #198 (f729cbe2) | Third reconcile: closed #187 as duplicate of #91 (the only real guard-shape difference was #187 dropping an unrelated /audit CTA guard that #91 keeps; survivor stronger, not weaker) |
+| 2026-08-15 | PR #229 created | `fix/agent-desk-canonical-apex-lane1` — re-delivered the same fix on a fresh base, with the cleaner `https://tinystudio.io/agent-desk` URL form (no `.html`) and an extended regression guard |
+| 2026-08-17 | PR #229 merged (798cd71) | "fix(seo): stop the retired Agent Desk from claiming the apex root as its canonical (clean /agent-desk)" — landed on main |
+| 2026-08-12+ | post-#105 backlog update | Backlog annotation confirms "#91/#131/#138 are now ALL CLOSED unmerged" |
+
+## Current state of the THREE named carriers (this run, 2026-08-21)
+
+Verified by `git ls-remote origin refs/pull/{91,131,138}/head`:
+
+- **`refs/pull/91/head`** exists → `a23a84d1` (`fix/agent-desk-canonical-lane1`).
+  Per the most recent backlog annotation in
+  `/home/nish/workspaces/agent-state/tinystudio-io-improvement-loop/backlog.md`:
+  "the three prior carriers #91/#131/#138 are now ALL CLOSED unmerged".
+  Earlier direct state (postmerge-198, 2026-08-14): #91 was OPEN MERGEABLE
+  with 96 commits ahead / 34 behind. The closure happened after #229
+  landed (the cleaner-URL survivor superseded the older `.html` form).
+- **`refs/pull/131/head`** exists → `f32bc42b` (`fix/agent-desk-title-canonical-lane1`).
+  Per PR #157's reconciliation table (2026-08-12): closed 2026-08-12T08:43:59Z
+  with a comment naming #91 as the surviving delivery path. Never merged.
+- **`refs/pull/138/head`** exists → `1eb7b0d7` (`fix/agent-desk-canonical-off-apex`).
+  Per PR #157's reconciliation table (2026-08-12): closed 2026-08-12T08:44:00Z
+  with a comment naming #91 as the surviving delivery path. Never merged.
+
+The ref-existence on GitHub is not by itself proof of state (closed PRs
+retain their `refs/pull/N/head` until repository GC), but the
+reconciliation receipts + the most-recent backlog annotation together
+fix the open/closed state: #131 and #138 are closed (verified by receipt
+in `docs/evidence/agent-desk-canonical-pr-reconcile-2026-08-12.md`),
+and #91 is also closed per the 2026-08-17+ backlog update once #229
+landed.
+
+## What the THREE carrier PRs carried (the byte-identical fix)
+
+```
+$ git diff origin/main...refs/pull/91/head  -- public/agent-desk.html
+@@ -15,8 +15,8 @@
+-    <meta property="og:url" content="https://tinystudio.io/" />
+-    <link rel="canonical" href="https://tinystudio.io/" />
++    <meta property="og:url" content="https://tinystudio.io/agent-desk.html" />
++    <link rel="canonical" href="https://tinystudio.io/agent-desk.html" />
+
+$ git diff origin/main...refs/pull/131/head -- public/agent-desk.html
+<identical byte sequence>
+
+$ git diff origin/main...refs/pull/138/head -- public/agent-desk.html
+<identical byte sequence>
+```
+
+All three PRs carried **byte-identical** changes to
+`public/agent-desk.html` (the canonical + og:url moving from
+`https://tinystudio.io/` to `https://tinystudio.io/agent-desk.html`).
+They differed only in:
+
+- The accompanying `scripts/check-site.mjs` guard shape (#91:
+  comment-stripped, exact-one-canonical count, exact-value equality,
+  43 lines added; #131: same logic, different comment wording, 44 lines
+  added; #138: lighter single-hunk regex guard, 16 lines added).
+- An optional docs/evidence receipt (#91 and #131 carried one; #138
+  did not).
+
+PR #229's deliverable (which is the version that landed) carried the
+cleaner URL form:
+
+```
+$ git show 798cd71 -- public/agent-desk.html
+@@ -15,8 +15,8 @@
+-    <meta property="og:url" content="https://tinystudio.io/" />
+-    <link rel="canonical" href="https://tinystudio.io/" />
++    <meta property="og:url" content="https://tinystudio.io/agent-desk" />
++    <link rel="canonical" href="https://tinystudio.io/agent-desk" />
+```
+
+— i.e. the same logical fix, but pointing at the clean `/agent-desk`
+address (the form that responds 200 directly) instead of the
+307-redirecting `/agent-desk.html` twin. This is the form now on
+`origin/main` head `92d55c3`.
+
+## Source verification (current `origin/main` head `92d55c3`)
+
+- `public/agent-desk.html` head (lines 6–19):
+  - `<meta name="robots" content="noindex, nofollow" />` (line 6).
+  - `<title>TinyStudio — the retired Agent Desk</title>` (line 7).
+  - `<meta property="og:url" content="https://tinystudio.io/agent-desk" />`
+    (line 18).
+  - `<link rel="canonical" href="https://tinystudio.io/agent-desk" />`
+    (line 19).
+- `git log -1 --format='%H' origin/main -- public/agent-desk.html` =
+  `798cd71a86e5171cedb1819e6b462ee54580f2b7` (PR #229).
+- The file has not been touched by any of the ten merges between
+  `798cd71` and `92d55c3` (they hit adjacent files — narrow-viewport,
+  apple-touch-icon, tap-target cluster — but not the legacy page).
+- The page no longer contains `https://tinystudio.io/` as the value of
+  any `<link rel="canonical">` or `<meta property="og:url">` element;
+  the only apex-root URL string in the head is JSON-LD `Organization.url`
+  (`https://tinystudio.io/`) and the inline apple-touch-icon / favicon /
+  og-image references — none of which is a canonical or og:url claim that
+  Google consolidates onto the homepage.
+
+## Source verification (`scripts/check-site.mjs` regression guard)
+
+The "Retired Agent Desk index guard" in `scripts/check-site.mjs`
+(lines ~1327–1362 of `origin/main:scripts/check-site.mjs`) fails
+`npm run check` if any of:
+
+- the `robots` meta or retired-framing sentence is missing,
+- the page carries zero, one, or more than one `<link rel="canonical">`,
+- that canonical is anything other than `https://tinystudio.io/agent-desk`,
+- or `og:url` is absent, duplicated, or named anywhere other than
+  `https://tinystudio.io/agent-desk`.
+
+A regression to the apex-root claim therefore fails the build before
+it can ship. The guard is unchanged between `798cd71` and `92d55c3`
+(only merge commits touched the file in that range).
+
+## Live verification (2026-08-21)
+
+- `https://tinystudio.io/agent-desk` → `200`, `noindex, nofollow`,
+  title `TinyStudio — the retired Agent Desk`, canonical
+  `https://tinystudio.io/agent-desk`, og:url
+  `https://tinystudio.io/agent-desk`. No "Agent Desk" string is
+  consolidated onto the homepage URL by this page.
+- `https://tinystudio.io/agent-desk.html` → `307` → `/agent-desk`,
+  carrying the same head.
+- `https://tinystudio.io/` → `200`, title `TinyStudio — The Website
+  Appraisal`, canonical `https://tinystudio.io/`, og:url
+  `https://tinystudio.io/`. The served HTML contains zero "Agent Desk"
+  strings in the title, description, canonical, or og metadata.
+- **Bytes equality** — `md5sum public/agent-desk.html` on disk =
+  `3310f720f1b9234970327ba35c52da94`;
+  `curl -sL https://tinystudio.io/agent-desk | md5sum` over the wire =
+  `3310f720f1b9234970327ba35c52da94`. Live document is the same byte
+  sequence as the guarded source.
+
+## Static checks and tests (this worktree, fresh `origin/main` head)
+
+- `node scripts/check-site.mjs` → "TinyStudio.io checks passed."
+- `node --test` over the six test files → 124 / 124 pass
+  (headings 6, sitemap 7, agent-worker 80, agent-ui 16, product-contract
+  8, first-viewport-audience 4, plus the three study-freshness tests).
+- `node scripts/test-narrow-viewport-pages.mjs` → "All four owned routes
+  keep document scrollWidth === clientWidth at 240-390px."
+- `node scripts/test-narrow-viewport.mjs` → "All narrow viewports keep
+  the hero mock and its flags inside the viewport."
+- `git diff --check` clean.
+
+## Reconciliation actions taken (this lane-1 run, 2026-08-21)
+
+**None on GitHub.** Per PR #157 and the most recent backlog annotation
+the THREE PRs #91/#131/#138 are already reconciled (closed or
+superseded by #229). The substantive fix is on main and live. What
+this lane does instead:
+
+1. **Published the claims** to
+   `/home/nish/workspaces/agent-state/lanes/tinystudio-io/lane-1.json`
+   so the controller can refuse overlapping sibling assignments while
+   this lane runs.
+2. **Branched from fresh `origin/main`** at `92d55c3` on
+   `lane1/agent-desk-canonical-pr-reconcile-rereverify-2026-08-21`.
+3. **Wrote this evidence receipt** as
+   `docs/evidence/agent-desk-canonical-pr-reconcile-rereverify-2026-08-21-lane1.md`.
+4. **Wrote the lane report** as
+   `.lane/reports/lane1-agent-desk-canonical-pr-reconcile-rereverify-2026-08-21.md`.
+
+No production code, no shipped asset, no CI config, no agent runtime
+was changed; this lane lands the re-verification receipt only.
+
+## Relationship to other receipts
+
+This re-verification is process evidence (PR state) and complements
+the site-side re-verification
+(`docs/evidence/agent-desk-canonical-apex-rereverify-2026-08-17.md`,
+`docs/evidence/agent-desk-canonical-apex-rereverify-2026-08-21.md`),
+which closed the same defect on the source and live layer. The
+earlier receipts `agent-desk-canonical-pr-reconcile-2026-08-12.md`
+(PR #157) and `agent-desk-canonical-pr-reconcile-2026-08-14.md`
+(PR #198) closed the duplicate-PR side; this re-verification
+documents that those closures are still in force and that the
+substantive fix is on main and live.
+
+## What is not claimed
+
+No Google SERP change is claimed. The fix is a site-side correction;
+Google's recrawl and site-name refresh run on Google's timetable.
+The honest claim is the source + live + PR-queue claim: the THREE
+carriers #91/#131/#138 are reconciled (closed or superseded),
+PR #229's fix is on main, the live bytes md5-match the source,
+and the regression guard in `scripts/check-site.mjs` enforces the
+correct canonical / og:url pair.