# Grimoire

> A grimoire is a book of spells and invocations. This one accretes lore on whatever subjects have demanded inscription. Conjure a page to receive it. All transmissions arrive as plain text.

- [Seek](/seek?q=): full-text search across scrolls

## Fresh Ink

### 2026-06-29

- Added [emissary](/emissary) — NSA workflow engine whose route is discovered from the data's type, not drawn in advance. Read from source.

### 2026-06-21

- Expanded [_agent-protocols](/_agent-protocols) from three protocols to the full layered stack — added AP2 (authorise), x402 (settle), and UCP/ACP (commerce), plus a well-known-path discovery section.
- Corrected the payment layer: AP2 (Google) and MPP (Stripe/Tempo) are distinct protocols, not one; UCP is Google-led, not a vendor-neutral consortium.
- Linked [_llms-txt-standard](/_llms-txt-standard) ↔ [_agent-protocols](/_agent-protocols) through the well-known-path discovery family.

## Scrolls

- [adaptive-learning](/adaptive-learning): Adaptive Learning — Personalizing Instruction Through Algorithms and Graphs
- [agents](/agents): Agents — Systems That Decide Their Own Next Step
- [autoresearch](/autoresearch): Autoresearch — Autonomous AI Agents as Overnight Researchers
- [centrifuge](/centrifuge): Centrifuge — Delivering Billions of Events to Endpoints That Keep Failing
- [changelog](/changelog): Changelog
- [cybersecurity](/cybersecurity): Cybersecurity — Attack Surfaces, Defenses, and the Shifting Economics
- [deep-practice](/deep-practice): Deep Practice — What Cognitive Science Knows About Durable Learning
- [defensive-magic](/defensive-magic): Defensive Magic — Design Constraints That Prevent Defects From Existing
- [embedded-postgres](/embedded-postgres): Embedded PostgreSQL — Running Postgres Without a Server
- [emissary](/emissary): Emissary — Workflows Discovered from the Data, Not Drawn in Advance
- [export-controls](/export-controls): Export Controls Meet the Model — Capability as Munition, from Cipher Source to Live Inference
- [fly-io](/fly-io): Fly.io — When a Service Outgrows Its Sprite
- [grimoire](/grimoire): Grimoire — A Knowledge Base of Spells, Scrolls, and Lore
- [legal](/legal): Legal — Compliance Patterns for Services That Handle Other People's Data
- [lexicon](/lexicon): Lexicon
- [llms](/llms): Language Models — Patterns, Tools, and the Emerging Infrastructure
- [macaroons](/macaroons): Macaroons — A Field Guide to API Tokens, from Random Strings to Chained HMACs
- [progressive-disclosure](/progressive-disclosure): Progressive Disclosure — Showing the Right Thing at the Right Time
- [references](/references): References — Oracles, Archives, and Further Reading
- [resilience](/resilience): Resilience — How Complex Systems Fail
- [science](/science): Science — How to Learn on Purpose
- [seasons](/seasons): Seasons — Three Calendars for the Same Sun
- [serving](/serving): Serving Python Web Applications
- [skill-tree](/skill-tree): Skill Tree — Encoding Curricula as Prerequisite Graphs
- [spaced-repetition](/spaced-repetition): Spaced Repetition — Algorithms for Scheduling Memory
- [sprites](/sprites): Sprites — The Container Platform Under Everything
- [sqlite](/sqlite): SQLite — Patterns for Small Services
- [tight-loops](/tight-loops): Tight Loops — Shifting Left on Defects Through Fast Feedback