code-review-asm-xtensa

SkillDev tools

Lets your agent review Xtensa assembly code for ESP32, catching errors and ABI compliance issues.

Available today. Use it from your connected AI after setup.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the code-review-asm-xtensa skill

About this capability

Review Xtensa assembly code for ESP32 platforms. Checks for critical errors in inline assembly, ABI compliance, and optimization opportunities. Use after modifying ESP32 assembly or inline asm code.

What this skill tells your AI

The instructions your AI receives, as published by fastled/fastled in .claude/skills/code-review-asm-xtensa/SKILL.md and read by ahel’s review.

Perform comprehensive manual review of Xtensa assembly code in FastLED ESP32 platforms for correctness, ABI compliance, safety, and performance.

What Gets Checked

Critical Errors (Must Fix)

  • E001: Invalid movi for 32-bit addresses
  • E002: Wrong return instruction in interrupts
  • E003: Missing memw memory barriers for MMIO writes
  • E004: Windowed ABI used in interrupt handlers
  • E005: Unaligned memory access
  • E006: Missing IRAM_ATTR on interrupt handlers
  • E007: Mixed ABI usage in same function

Performance Warnings

  • W001-W005: Load-use hazards, loop overhead, nesting depth, register pressure, dependency chains

Optimization Opportunities

  • O001-O004: Array indexing, conditional moves, loop unrolling, code density

Search for Xtensa assembly code in git changes (inline asm and .S files) and perform deep analysis.

Signals

GitHub stars
7k
Forks
2k
Last commit
Sep 2026
Advanced
Catalog kind
skill
Gateway key
code-review-asm-xtensa
Source
github.com/fastled/fastled
code-review-asm-xtensa: Skill · ahel