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tool contracts

2 articles · Page 1 of 1
Architect
Architect
Aug 10, 2026 · Artificial Intelligence

Anthropic Deep Dive: Context Engineering Lessons from Real‑World R&D

The article analyzes Anthropic’s “Effective context engineering for AI agents,” showing how larger context windows can degrade, categorizing information by stability, designing prompts in the Goldilocks zone, structuring tool contracts, and applying runtime information scheduling, compression, structured notes, and sub‑agents to keep AI agents reliable in complex development workflows.

AI agentsAnthropicContext Engineering
0 likes · 19 min read
Anthropic Deep Dive: Context Engineering Lessons from Real‑World R&D
Shuge Unlimited
Shuge Unlimited
Jun 18, 2026 · Artificial Intelligence

What the 120k‑Character Claude Fable 5 Prompt Leak Reveals About Its True Architecture

A leaked 120 KB system prompt for Claude Fable 5 shows that the model is not merely a chat bot but a fully engineered agent system with layered responsibilities, tool contracts, hard and soft constraints, runtime patches, and an opt‑in design that prevents it from autonomously selecting commercial partners.

Agent ArchitectureClaude Fable 5LLM constraints
0 likes · 17 min read
What the 120k‑Character Claude Fable 5 Prompt Leak Reveals About Its True Architecture