Topic hub
Claude
A New Runtime topic hub collecting signals, patterns, field notes, and public sources about claude.
Field notes
What should readers understand next?
Claude Opus 5 Makes Prompting a Runtime Contract
Anthropic's Opus 5 prompting guide shows that stronger models can make old harness defaults wrong: verbosity, effort, verification, delegation, and thinking mode all become runtime controls.
Raw signals
What changed recently?
Claude Opus 5 Turns Prompting Into Harness Calibration
Anthropic's Opus 5 prompting guide shows model upgrades changing the harness contract: verbosity, progress updates, scope, subagents, verification, and thinking mode all need retuning.
Claude Code: Verification Bandwidth
The archive captures Claude Code as a dated public record from Claude Code. It documents evaluation, review, and observability becoming the bottleneck after generation accelerates and is retained as pressure-testing evidence for the verification bandwidth trend.
Anthropic / Claude Code Auto Mode: Agent Security Runtime Boundaries
The archive captures Anthropic / Claude Code Auto Mode as a dated public record from Anthropic / Claude Code Auto Mode. It documents agent security expanding from prompt policy into memory, tools, sandboxes, and execution boundaries and is retained as branch-opening evidence for the agent security runtime boundaries trend.
Academy / Agentic Context Engineering: Generative Media Infrastructure
The archive captures Academy / Agentic Context Engineering as a dated public record from Academy / Agentic Context Engineering. It documents image, video, audio, and multimodal generation becoming application infrastructure and is retained as branch-opening evidence for the generative media infrastructure trend.
Humanlayer / Writing Good Claude Md: Harnesses And Portable Skills
The archive captures Humanlayer / Writing Good Claude Md as a dated public record from Humanlayer / Writing Good Claude Md. It documents agent behavior moving from ad hoc prompts into reusable rules, skills, and harnesses and is retained as supporting evidence for the harnesses and portable skills trend.
Effective context engineering for AI agents
The archive captures Effective context engineering for AI agents as a dated public record from Anthropic / Effective Context Engineering For Ai Agents. It documents context and memory becoming governed infrastructure with update and provenance loops and is retained as supporting evidence for the governed context and memory trend.
Source ledger
Publishable sources attached to this record.
| # | Source | Role | Public status |
|---|---|---|---|
| 1 | academy.dair.aisource | primary receipt | source_urls |
| 2 | anthropic.comsource | supporting receipt | source_urls |
| 3 | anthropic.comsource | supporting receipt | source_urls |
| 4 | code.claude.comsource | supporting receipt | source_urls |
| 5 | humanlayer.devsource | supporting receipt | source_urls |
| 6 | platform.claude.comdocs | supporting receipt | source_urls |
| 7 | youtube.comsource | supporting receipt | source_urls |