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Card 399 of 9762026-09-14 issue

Observed arrival · 2026-09-14

iyi: A Language for People and Their Agents

iyi.dev Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

A compiled programming language designed to make code easier for both humans and coding agents to read and modify.

Landing page captured for the 2026-09-14 issue.

Field notes

iyi exposes a declaration-only view of imported modules through `iyi mod context --json`, then feeds that bounded surface into compiler checks, editor tooling, or an MCP harness. Its homepage includes a runnable tour, a Kemal server example, and installation instructions for Linux x86-64 and macOS arm64. The project reports 31–43% fewer prompt tokens for grounded edits across 26 runs, with the grounding pack measuring 52–59% of the replaced source.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

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iyi.dev

Landing page observed 2026-09-14. The live site may have changed.