ci: label-gated hosted-web preview deploys#5465

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ci: label-gated hosted-web preview deploys #5465

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132 changes: 132 additions & 0 deletions .github/workflows/web-preview.yml
View file
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
pull_request:
types: [labeled, synchronize, reopened]

permissions:
contents: read
pull-requests: write

concurrency:
group: web-preview-${{ github.event.pull_request.number }}
cancel-in-progress: true

@cursorcursorBotAug 6, 2026

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Unrelated labels cancel preview deploys

Medium Severity

Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.

Additional Locations (1)
Fix in CursorFix in Web

Reviewed by Cursor Bugbot for commit 672e454. Configure here.


jobs:
deploy:
name: Deploy web preview
# Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
# workflow should skip rather than fail for them. On `labeled` events, only
# the preview label itself triggers a deploy.
if: >-
github.event.pull_request.head.repo.full_name == github.repository &&
contains(github.event.pull_request.labels.*.name, 'preview:web') &&
(github.event.action != 'labeled' || github.event.label.name == 'preview:web')
runs-on: blacksmith-8vcpu-ubuntu-2404
timeout-minutes: 10
env:
VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
steps:
- name: Checkout
uses: actions/checkout@v6
with:
ref: ${{ github.event.pull_request.head.sha }}
sparse-checkout: |
/*
!/.repos/
sparse-checkout-cone-mode: false

- name: Setup Vite+
uses: voidzero-dev/setup-vp@v1
with:
node-version-file: package.json
cache: true
run-install: |
args:
- --filter=@t3tools/scripts...
- --filter=@t3tools/web...

- id: deploy
name: Deploy preview
shell: bash
run: |
set -euo pipefail

if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
exit 1
fi

vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

deployment_url="$(
vp dlx vercel@53.1.1 deploy \
--archive=tgz \
--yes \
--token "$VERCEL_TOKEN" \
--scope "$vercel_scope"
)"

echo "Deployed $deployment_url"
echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

- name: Comment deployment URL
uses: actions/github-script@v8
env:
DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
HEAD_SHA: ${{ github.event.pull_request.head.sha }}
with:
script: |
const marker = "<!-- web-preview-deploy -->";
const body = [
marker,
"### Web preview",
"",
`${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
"",
"Open this exact URL — the hosted-app origin is baked in at build time.",
"Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
"code under Settings → Connections.",
].join("\n");

const { data: comments } = await github.rest.issues.listComments({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: context.payload.pull_request.number,
per_page: 100,
});
const existing = comments.find((comment) => comment.body?.includes(marker));

if (existing) {
await github.rest.issues.updateComment({
owner: context.repo.owner,
repo: context.repo.repo,
comment_id: existing.id,
body,
});
} else {
await github.rest.issues.createComment({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: context.payload.pull_request.number,
body,
});
}
Loading
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var __re = new RegExp('^' + "github\\.com" + '

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ci: label-gated hosted-web preview deploys#5465

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t3dotgg
merged 1 commit into

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Aug 9, 2026
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ci: label-gated hosted-web preview deploys
#5465
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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

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Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
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color-scheme: dark light;
}
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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 Merged

t3dotgg
merged 1 commit into

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Aug 9, 2026
 Merged


ci: label-gated hosted-web preview deploys
#5465
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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

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Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
Loading

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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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 Merged

t3dotgg
merged 1 commit into

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Aug 9, 2026
 Merged


ci: label-gated hosted-web preview deploys
#5465
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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

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Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

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Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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 Merged

t3dotgg
merged 1 commit into

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Aug 9, 2026
 Merged


ci: label-gated hosted-web preview deploys
#5465
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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

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Contributor
Choose a reason for hiding this comment

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Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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 Merged

t3dotgg
merged 1 commit into

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Aug 9, 2026
 Merged


ci: label-gated hosted-web preview deploys
#5465
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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

Copy link


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Contributor
Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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t3dotgg
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Aug 9, 2026
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ci: label-gated hosted-web preview deploys
#5465
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132 changes: 132 additions & 0 deletions
.github/workflows/web-preview.yml

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,132 @@
name: Web Preview

# Label a PR `preview:web` to get a hosted-web preview deployment on Vercel for
# that push and every subsequent push. The deployment is a plain (non-prod,
# non-aliased) deploy into the existing hosted-web Vercel project, so the
# latest/nightly channel aliases are never touched.
#
# The build intentionally omits the T3 Connect cloud config (Clerk keys, relay
# URL): previews boot as the hosted-static app with manual pairing only. Pair a
# server into a preview with `t3 pair --tailscale` (or any reachable HTTPS
# backend) and open the pairing URL against the preview origin.
#
# The preview must be opened at the exact deployment URL from the PR comment.
# Vite bakes that URL in as the hosted origin (via VERCEL_URL), and
# `isHostedStaticApp` matches on origin, so branch-alias URLs will not
# self-identify as the hosted app.

on:
 pull_request:
 types: [labeled, synchronize, reopened]

permissions:
 contents: read
 pull-requests: write

concurrency:
 group: web-preview-${{ github.event.pull_request.number }}
 cancel-in-progress: true
@cursorcursorBotAug 6, 2026

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Unrelated labels cancel preview deploys
Medium Severity
Workflow-level concurrency with cancel-in-progress takes the slot before the job if runs. Unrelated labeled events (for example size labels from pr-size.yml) cancel an in-flight preview deploy, then the new run skips because the label is not preview:web, so no deploy finishes and the sticky URL is left missing or stale. The sibling mobile preview workflow keeps the same label gate but puts concurrency on the job so skipped runs never enter the group.
Additional Locations (1)
Fix in CursorFix in Web
Reviewed by Cursor Bugbot for commit 672e454. Configure here.

jobs:
 deploy:
 name: Deploy web preview
 # Same-repo PRs only: fork PRs do not receive the Vercel secrets, and this
 # workflow should skip rather than fail for them. On `labeled` events, only
 # the preview label itself triggers a deploy.
 if: >-
 github.event.pull_request.head.repo.full_name == github.repository &&
 contains(github.event.pull_request.labels.*.name, 'preview:web') &&
 (github.event.action != 'labeled' || github.event.label.name == 'preview:web')
 runs-on: blacksmith-8vcpu-ubuntu-2404
 timeout-minutes: 10
 env:
 VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
 VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
 VERCEL_TEAM_SLUG: ${{ vars.VERCEL_TEAM_SLUG }}
 steps:
 - name: Checkout
 uses: actions/checkout@v6
 with:
 ref: ${{ github.event.pull_request.head.sha }}
 sparse-checkout: |
 /*
 !/.repos/
 sparse-checkout-cone-mode: false

 - name: Setup Vite+
 uses: voidzero-dev/setup-vp@v1
 with:
 node-version-file: package.json
 cache: true
 run-install: |
 args:
 - --filter=@t3tools/scripts...
 - --filter=@t3tools/web...

 - id: deploy
 name: Deploy preview
 shell: bash
 run: |
 set -euo pipefail

 if [[ -z "${VERCEL_TOKEN:-}" || -z "${VERCEL_ORG_ID:-}" || -z "${VERCEL_PROJECT_ID:-}" ]]; then
 echo "Missing one or more required Vercel secrets: VERCEL_TOKEN, VERCEL_ORG_ID, VERCEL_PROJECT_ID." >&2
 exit 1
 fi

 vercel_scope="${VERCEL_TEAM_SLUG:-$VERCEL_ORG_ID}"

 deployment_url="$(
 vp dlx vercel@53.1.1 deploy \
 --archive=tgz \
 --yes \
 --token "$VERCEL_TOKEN" \
 --scope "$vercel_scope"
 )"

 echo "Deployed $deployment_url"
 echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

 - name: Comment deployment URL
 uses: actions/github-script@v8
 env:
 DEPLOYMENT_URL: ${{ steps.deploy.outputs.deployment_url }}
 HEAD_SHA: ${{ github.event.pull_request.head.sha }}
 with:
 script: |
 const marker = "<!-- web-preview-deploy -->";
 const body = [
 marker,
 "### Web preview",
 "",
 `${process.env.DEPLOYMENT_URL} (for ${process.env.HEAD_SHA.slice(0, 7)})`,
 "",
 "Open this exact URL — the hosted-app origin is baked in at build time.",
 "Pair a server into it with `t3 pair --tailscale`, or paste a host + pairing",
 "code under Settings → Connections.",
 ].join("\n");

 const { data: comments } = await github.rest.issues.listComments({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 per_page: 100,
 });
 const existing = comments.find((comment) => comment.body?.includes(marker));

 if (existing) {
 await github.rest.issues.updateComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 comment_id: existing.id,
 body,
 });
 } else {
 await github.rest.issues.createComment({
 owner: context.repo.owner,
 repo: context.repo.repo,
 issue_number: context.payload.pull_request.number,
 body,
 });
 }
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