feat(telemetry): add standalone telemetry for create-sanity

[mttdnt]

Description

• Replace noop telemetry store in create-sanity with real telemetry
• Add setupStandaloneTelemetry — mirrors the oclif prerun hook without the oclif dependency, flushes inline with a 3s timeout instead of a detached worker
• Add telemetryDisclosureStandalone and unify telemetryDisclosure to re-export it
• Parse args before telemetry setup so --help exits without showing the disclosure banner (parity with oclif where --help runs before the prerun hook)
• output.error throws InitError so errors flush through the same catch path as other errors
• Delete noopTelemetry.ts

[mttdnt]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• feat(telemetry): add standalone telemetry for create-sanity #892 👈 (View in Graphite)
• feat(create-sanity): bundle init logic into single file #759
• refactor(init): move init logic to action pattern #845
• main

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[claude]

Claude finished @mttdnt's task in 3m 40s —— View job

---

Review

• Read CLAUDE.md and gather context
• Review changed files
• Check for changeset
• Post findings

---

Missing changeset

create-sanity gains real telemetry where there was previously a noop store — a user-facing runtime behavior change. A changeset is required for create-sanity (minor) and probably a patch for @sanity/cli (telemetry disclosure refactored to remove oclif dependency). None of the existing changesets cover this PR.

---

output.error drops the original error's cause

packages/create-sanity/src/index.ts:67

error: (msg: Error | string): never => {
  throw new InitError(msg instanceof Error ? msg.message : msg, 1)
},

When msg is an Error, only .message is preserved — the original stack trace and cause chain are silently dropped. Telemetry then records InitError (with the message text) rather than the original error type, which makes error analytics harder to interpret.

Fix: Fix this →

error: (msg: Error | string): never => {
  throw new InitError(
    msg instanceof Error ? msg.message : msg,
    1,
    msg instanceof Error ? {cause: msg} : undefined,
  )
},

---

Telemetry disclosure message may confuse first-time users

packages/@sanity/cli/src/actions/telemetry/telemetryDisclosureStandalone.ts:30

The banner tells users to run npx sanity telemetry enable/disable — but create-sanity runs before sanity is installed. A user running npm create sanity@latest for the first time won't have the sanity CLI available yet, so the opt-out instruction is not actionable at that moment. Consider noting they can also run the command after installation, e.g. "Once installed, run npx sanity telemetry disable to opt out."

[github-actions]

📦 Bundle Stats — @sanity/cli

Compared against feat/bundled-create-sanity (bc02ced5)

@sanity/cli

Metric	Value	vs feat/bundled-create-sanity (bc02ced)
Internal (raw)	2.1 KB	-
Internal (gzip)	799 B	-
Bundled (raw)	1.54 MB	-
Bundled (gzip)	394.7 KB	-
Import time	870ms	+7ms, +0.8%

bin:sanity

Metric	Value	vs feat/bundled-create-sanity (bc02ced)
Internal (raw)	975 B	-
Internal (gzip)	460 B	-
Bundled (raw)	9.84 MB	-
Bundled (gzip)	1.77 MB	-
Import time	1.96s	-48ms, -2.4%

🗺️ View treemap · Artifacts

Details

• Import time regressions over 10% are flagged with ⚠️
• Sizes shown as raw / gzip 🗜️. Internal bytes = own code only. Total bytes = with all dependencies. Import time = Node.js cold-start median.

📦 Bundle Stats — @sanity/cli-core

Compared against feat/bundled-create-sanity (bc02ced5)

Metric	Value	vs feat/bundled-create-sanity (bc02ced)
Internal (raw)	98.0 KB	-
Internal (gzip)	23.3 KB	-
Bundled (raw)	21.65 MB	-
Bundled (gzip)	3.43 MB	-
Import time	814ms	-6ms, -0.7%

🗺️ View treemap · Artifacts

Details

• Import time regressions over 10% are flagged with ⚠️
• Sizes shown as raw / gzip 🗜️. Internal bytes = own code only. Total bytes = with all dependencies. Import time = Node.js cold-start median.

📦 Bundle Stats — create-sanity

Compared against feat/bundled-create-sanity (bc02ced5)

Metric	Value	vs feat/bundled-create-sanity (bc02ced)
Internal (raw)	2.56 MB	+199.4 KB, +8.2%
Internal (gzip)	605.4 KB	+50.1 KB, +9.0%
Bundled (raw)	2.56 MB	+199.8 KB, +8.2%
Bundled (gzip)	605.4 KB	+50.2 KB, +9.0%
Import time	❌ TypeError: Cannot add property upath, object is not extensible	-

Details

• Import time regressions over 10% are flagged with ⚠️
• Sizes shown as raw / gzip 🗜️. Internal bytes = own code only. Total bytes = with all dependencies. Import time = Node.js cold-start median.