WhoBuilt

The Critical Advantage With AI

Sep 21, 2026· 22 min· 672 views·Watch on YouTube

Speaker

Tejas Kumar, an AI engineer at IBM Research, presents at Agent Conf 2026 with Callstack on developing human taste to improve agent-built software.

Taste is the advantage

Kumar argues that having powerful tools does not guarantee high-quality work, and distinguishes craft from slop. He defines taste as a trainable human skill for quickly judging quality against external standards.

Build taste through practice

Kumar identifies three ingredients: immersion in high-quality examples, valid cues that connect first impressions to how something performs, and corrective feedback from someone more experienced. His computer mouse example shows why looking at many designs is not enough without using them and learning from informed critique.

Bring craft into agent experiences

Kumar contrasts the friction of ordinary websites with the ease of asking an agent for information, while noting that a plain text answer can lose a company’s branding and design. He demonstrates an MCP App that connects a schedule tool to an HTML resource, letting an MCP client render interactive, branded speaker and schedule details inside ChatGPT.

Make quality the differentiator

Kumar says that broad access to creation tools makes the quality of what people build a key differentiator. He encourages teams to apply immersion, valid cues, and corrective feedback, and mentions IBM’s coding agent, Bob, as an effort to make an agent more considered.

Takeaways

  • Study strong examples regularly, then use the products to learn how design choices perform.
  • Pair first impressions with observable evidence about how a product works.
  • Build regular critique from experienced colleagues into the creation process.
  • Use MCP Apps to give agent interactions branded, interactive interfaces when plain text loses useful context.
  • Treat quality as a skill teams can improve, even as creation tools become more accessible.

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