Last updated · April 24, 2026

Your data
stays with you.

Tasuku is built on a simple principle: your browsing context is yours. We don't collect it, store it on servers, or share it with anyone. Here's exactly what happens — and what doesn't.

The five-line summary file №02

The short version.

Servers
Zero. None. Nothing phones home.
Tracking
No analytics, telemetry, or SDKs.
Stored
Locally on your device, that's it.
Sent
Only to the AI you chose, when you click.
everything
stays in
your browser.
No servers. No tracking. No telemetry. No third parties. No surprises. Your data stays with you. No servers. No tracking. No telemetry. No third parties. No surprises. Your data stays with you. No servers. No tracking. No telemetry. No third parties. No surprises. Your data stays with you. No servers. No tracking. No telemetry. No third parties. No surprises. Your data stays with you.
the promise

Zero external servers.

The plainest possible answer to "what does this extension talk to?" — almost nothing.

our solemn
vow.

Tasuku makes no network requests of its own.

There are zero fetch, XHR, or WebSocket calls to any external server. No analytics. No telemetry. No error reporting. No third-party SDKs. The only network traffic is between your browser and the AI platforms you already use — and that traffic only happens when you press send.

where things live

What's stored — and where.

Everything Tasuku stores is on your device, under your control. Nothing leaves your browser unless you explicitly send it.

Chrome Sync

Group & chat metadata.

Names, URLs, preferences, prompt templates. Synced across your own Chrome devices via your Google account. Never seen by us.

Session Storage

Gone when you close the tab.

Screenshots (PNG), pending thread queue, recent chat history per platform. Cleared the moment the tab closes. Never persisted off-device.

localStorage

Backup snapshots of groups.

On-device only, auto-managed. Used to recover from a bad sync. Never transmitted anywhere, by anyone.

One cookie

Anthropic opt-out preference.

We set anthropic-consent-preferences on claude.ai to opt you out of their analytics. Write-only. We never read it back.

page access

What we read from pages.

Tasuku only reads what you explicitly trigger. Nothing is collected passively. Here's the receipt:

Receipt №02 — what's read, and when only on user action
Selected text Only when you highlight it and choose to send.
when you click
Chat URL / ID From window.location — for thread labeling, not chat content.
on open
Page title Used for labeling groups and threads in your sidebar.
on send
Visible tab screenshot Only when you trigger capture. Never sent anywhere automatically.
on capture
Total · 4 items · all user-initiated signed, Tasuku
the ledger

Why each permission exists.

Chrome makes us declare permissions upfront. Here's exactly what each one does — and absolutely nothing more.

Permission
Why it's needed
tabs
Open background tabs for thread creation when you send context to a new AI chat.
cookies
Set the Claude analytics opt-out cookie on claude.ai on your behalf.
declarativeNetRequest
Adjusts local browser loading rules only when needed so your chosen AI chat can appear in the side panel.
clipboardWrite
Copy group export data to your clipboard. Write-only — never reads from clipboard.
<all_urls>
Enable the toolbar and thread creation on any page you visit — required for a universal browser extension.
the blank page

What we never touch.

A short list of things Tasuku doesn't collect, doesn't see, and couldn't ship anywhere even if it wanted to.

Chat message content or AI responses
Login credentials or session tokens
Browser history outside AI platforms
Any personally identifiable information
Analytics or usage telemetry of any kind
Third-party SDKs or tracking scripts
A quick word, then.

If anything here is unclear, or you'd like to understand more about how Tasuku handles your data — reach out. We're happy to explain in plain language, no legalese required.

thueainmatt@gmail.com

— The people behind Tasuku this notice has been on the page since day one
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