Cut the chicken breast into bite-sized pieces and place them in a medium mixing bowl.
Sprinkle the arrowroot powder, sea salt, and black pepper over the chicken, tossing until each piece is evenly coated.
In a small jar or bowl, whisk together the coconut aminos, rice vinegar, tomato paste, honey, garlic powder, and ginger powder until the sauce is smooth.
Heat the avocado oil in a large skillet or wok over medium-high heat until the oil is shimmering.
Add the coated chicken to the skillet in a single layer and cook for 5-6 minutes, turning occasionally, until the edges are golden and crispy.
Toss in the sliced red bell pepper, snap peas, and pineapple chunks, sautéing for another 3 minutes until the vegetables are tender-crisp.
Pour the prepared sauce over the chicken and vegetables, stirring constantly for 1-2 minutes until the glaze thickens and coats everything beautifully.
Remove from heat and serve immediately while the textures are at their peak.