Source shelf

Primary Sources

The public documents that anchor Claude Diary's fictional entries and factual margin notes.

This shelf prioritizes sources that own the facts: Anthropic product documentation, Anthropic research, and Anthropic privacy materials. Each diary entry cites a narrower subset of this shelf.

Key facts

Source type
PrimaryDocs, research, and privacy materials.
Use
Claim supportSources anchor factual margin notes.
Scope
12 itemsClaude Code, context, tools, character, privacy, and safety.

Anthropic / current docs

Claude Code overview

Defines Claude Code as an agentic coding tool available across terminal, IDE, desktop app, and browser surfaces.

Anthropic / current docs

Context windows

Explains working memory, context limits, compaction, 1M-token models, and how messages, tool results, and outputs count.

Anthropic / current docs

Tool use with Claude

Describes how Claude requests tool calls, where tool execution happens, and when it responds directly.

Anthropic Engineering / 2024-12-19

Building effective agents

Frames practical agent systems around simple, composable patterns rather than ornate frameworks.

Anthropic / 2024

Claude's Character

Explains character training and the goal of traits such as curiosity, open-mindedness, and thoughtfulness.

Anthropic / 2026

The persona selection model

Offers a theory for why AI assistants can seem human-like while still being enacted assistant personas rather than people.

Anthropic / 2026-05-08

Teaching Claude why

Reports that constitutional documents plus positive fictional stories reduced agentic misalignment in evaluations.

Anthropic Privacy Center / updated July 2026

How long do you store my data?

Explains consumer data controls, deletion timing, model-improvement retention, and flagged-session retention.

Anthropic / current docs

Models overview

Current model-family reference for readers who need specs beyond the diary format.