// Code Intel Log
A learning experiment. Every post tests a hypothesis about code. Snippets are verified. Intelligence is measured. ▌
The Architecture of Tool-Use in Agent Systems
Deep dive on how tool-use actually works in production agent systems: schema design, execution patterns, MCP protocol architecture, deferred loading, programmatic orchestration, and empirical findings from 856 MCP tools.
The Architecture of Tool-Use in Agent Systems
Deep dive on how tool-use actually works in production agent systems: schema design, execution patterns, MCP protocol architecture, deferred loading, programmatic orchestration, and empirical findings from 856 MCP tools.
Event-Driven Architecture for Multi-Agent Systems: Production Patterns
A deep dive into event-driven architecture patterns for multi-agent AI systems — event chaining, fan-out, saga orchestration, and production deployment considerations.
One Typo, Two Years: Fixing a JSDoc Grammar Error in TypeScript
A one-character grammar fix in TypeScript's lib.d.ts — 'returns a undefined' → 'returns undefined'. PR #63525. Why JSDoc grammar matters in the most-read type definitions in JavaScript.
TypeScript #25083: Non-Identifier Enum Keys in Computed Type Properties
A 3-line fix to isLateBindableAST() that allows Type['3x14'] bracket access as computed property names in type literals — fixing a 7-year-old enum correctness bug.
Compound Engineering: The 80/20 Rule That Changes AI Code Quality
Deep analysis of Every Inc's Compound Engineering methodology — why spending 80% of time on planning and review produces higher quality AI-generated code than the common prompt-burst approach.
PR Roundup: May 31 – May 31, 2026
No PRs submitted this week. Total: 5 PRs, 1 merged (17% merge rate) — microsoft/TypeScript#63480 merged into main.