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# Anthropic's Thariq Shihipar: CLAUDE.md rules can hold back newer models
- URL: https://www.signalful.com/anthropic-s-thariq-shihipar-claude-md-rules-can-hold-back-newer-models/
- Published: 2026-09-30T12:00:00.000Z
- Updated: 2026-10-09T20:31:09.000Z
- Description: The CLAUDE.md rules that helped last year's model can slow down this year's. Anthropic's Thariq Shihipar on when to throw them out.
- Author: Signalful Editorial
- Tags: Builders, Anthropic, Thariq Shihipar, AI Coding, Future of Work, AI Agents, #sf-0002, #yt-IZAlq-V19U8, #yt-NE4CLThMPGU, #yt-G9P9D9hptq8, #Import 2026-10-06 13:00

## Today’s Signals

1. **Anthropic's Thariq Shihipar: CLAUDE.md rules can hold back newer models**Review agent instructions when the underlying model changes.
2. **Shopify's AI colleague works in open Slack channels so employees learn by watching**Open internal conversations let colleagues learn AI use by observation.
3. **Box's Aaron Levie: your agent must beat off-the-shelf agents on your product**Product-specific agents need a measurable advantage.

![Thariq Shihipar · Claude Code team, Anthropic](https://storage.ghost.io/c/80/32/80323665-8fd8-4f6a-8b1d-18cf5988ae6d/content/images/2026/10/1-t-1790715697.png)

![Tobi Lütke · Founder and CEO, Shopify](https://storage.ghost.io/c/80/32/80323665-8fd8-4f6a-8b1d-18cf5988ae6d/content/images/2026/10/2-t-1790715724.png)

![Aaron Levie · Co-founder and CEO, Box](https://storage.ghost.io/c/80/32/80323665-8fd8-4f6a-8b1d-18cf5988ae6d/content/images/2026/10/3-t-1790715749.png)

Watch the full videos: Thariq Shihipar at [https://www.youtube.com/watch?v=IZAlq-V19U8](https://www.youtube.com/watch?v=IZAlq-V19U8&ref=signalful.com); Tobi Lütke at [https://www.youtube.com/watch?v=G9P9D9hptq8](https://www.youtube.com/watch?v=G9P9D9hptq8&ref=signalful.com); Aaron Levie at [https://www.youtube.com/watch?v=NE4CLThMPGU](https://www.youtube.com/watch?v=NE4CLThMPGU&ref=signalful.com).