Provider · Anthropic

Claude, fluent
in your voice.

Paste an sk ant key. Pick Opus for depth, Sonnet for speed, Haiku for volume. Rook Signal adapts the prompt shape to each.

Add API keyAnthropic
Anthropic
Claude Opus 4.7
sk-ant-api03-████████ JX9k

Encrypted at rest with AES 256 GCM. Never returned to the browser.

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Why Claude

The calmest draft in the queue.

Claude tends to match your cadence better than most. It reads the post, listens to your samples, and stops when the thought is complete.

Models

Opus, Sonnet, Haiku.

Opus for investor and board replies where depth matters. Sonnet for the daily queue. Haiku when you want a hundred drafts in a hundred seconds.

  • Opus 4
    Our default for careful, longer replies.
  • Sonnet 4
    Balanced speed and thinking. The workhorse.
  • Haiku 4
    Fast, crisp, perfect for volume tracking runs.
Rook IntelligenceDrafts
Today's briefing

Seven new posts from your fifteen accounts. Five drafts ready. Naval and April are the highest signal posts this morning. Shaan posted twice in eighteen hours.

Naval RavikantPre generated
The real 10x engineer is the one who knows which problems to ignore.
This is the part most teams miss. Priority is not about working faster. It is about refusing the wrong work.
April DunfordPre generated
Positioning is not a tagline. It is the reason your buyer says yes.
Agreed. The strongest positioning reads like a calm sentence. No jargon. Just a buyer reason.
Context

Reads the whole post, not the first line.

Most of the personality in a reply comes from having actually read the original post. Claude does this reliably, and that is why Rook Signal sets it as the default.

  • Long context
    Two hundred thousand tokens per request.
  • Cache friendly
    Prompt caching reduces your spend on repeat personas.
  • Safe defaults
    Claude rarely ships surprises. Rook Signal likes that.
Add API keyAnthropic
Anthropic
Claude Sonnet 4.6
sk-ant-api03-████████ rQ7p

Encrypted at rest with AES 256 GCM. Never returned to the browser.

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In practice

What it feels like with Claude.

Drafts that arrive thoughtful on the first try. Fewer regenerates. Cleaner mornings.

Quiet confidence

Less hedging. More direct sentences. Keeps your voice upright.

Reads context

Uses the whole post, quotes gracefully, avoids generic openers.

Fast with Haiku

Haiku finishes a queue of twenty in roughly twenty seconds.

Your key, encrypted

Rook Signal stores your sk ant key with AES 256 GCM, masked in UI.

Prompt caching

Persona stays in cache. Per draft cost drops.

Observable

Every regeneration shows timing and token count in the dashboard.

200K
Context window
sk ant
Prefix
3
Models to pick from
Default
On every new workspace
Anthropic

Claude. In your workspace.

Paste an sk ant key. Pick Opus, Sonnet, or Haiku. Rook Signal takes it from there.