UI Feedback Workflow for OpenCode Users

The "Fix This Button" Fallacy

You’re staring at a production build. The padding on the secondary CTA is off by four pixels. You open Slack. You type: "Hey, the button in the header looks weird." Your developer replies: "Which one? Looks fine on my machine."

This is the death of velocity. You’re trading context for ambiguity. When you’re relying on an AI agent to handle your frontend, this back-and-forth isn't just annoying; it’s expensive. You aren't communicating with a human who knows the codebase. You're trying to guide an LLM. If your input is garbage, your output is a hallucinated layout shift. You need to kill the guesswork. Stop writing descriptions. Start providing coordinates.

Fixing Your opencode Workflow

Most folks treat their coding agent like a magic box. They type a prompt, pray, and wonder why the CSS breaks. That’s because they’re ignoring the source of truth: the DOM. An effective opencode workflow depends on granular data. You can't just throw a screenshot at an AI and expect it to magically resolve a flexbox alignment issue.

When you use markagent, you aren't just taking a picture. You’re grabbing the React component name, the file path, and a stable CSS selector. I’ve seen teams cut their debugging cycles in half by simply feeding the agent the exact file path where the style definition lives. Stop being a passive observer of your code. Become the architect who points exactly where the foundation cracked.

Why Visual Context Matters

An AI agent doesn't "see" like you do. It sees nodes, attributes, and styles. When you provide opencode visual context, you are essentially giving the agent a map of the room before you tell it to move the furniture.

If you just say "change the font," the agent might update the global typography, breaking your design system. If you use our tool to pin that specific text element, the agent sees the localized class name and the specific component scope. It knows exactly what it can touch and what it needs to leave alone. This is the difference between a surgical fix and a global regression. Don't let your agent guess. Force it to be precise.

Capturing State in Real-Time

Frontend bugs are elusive. They exist in specific states—hovered, active, or loaded with specific props. Capturing a static screenshot of a broken page is only half the battle. You need to record the journey.

When you use the keyboard shortcut Cmd+Shift+., markagent captures the current state, the click sequence, and the DOM context. This is essential for open source coding agent feedback. If you're submitting a bug report for an open-source project, you can't rely on the maintainer to reproduce your obscure local environment. Give them the structured markdown prompt that contains the exact sequence of events. When they feed that into their agent, the agent sees your trail. No reproduction steps required.

The Death of the Long-Form Prompt

Stop writing paragraphs. Nobody reads them. Your coding agent definitely doesn't want them. It wants code, selectors, and clear instructions. I’ve shifted my internal process to rely entirely on exported markdown chunks.

When I find a bug, I use markagent to highlight the element, generate the snippet, and paste the result into the agent. It includes the file path from the dev build—like ./src/components/Navbar/LoginButton.jsx—and the computed styles. The agent gets the context, the environment, and the objective in one go. It doesn't need to ask for clarification. It just opens the file and applies the diff. It’s faster, cleaner, and significantly more reliable than typing "please make it blue."

Scaling Your Frontend QA

QA isn't about finding bugs. It’s about documenting them so they can be squashed instantly. If your team is struggling with opencode ui feedback cycles, you’ve got a tooling problem. You’re forcing your engineers to act as translators between designers and the agent.

By standardizing how you report issues, you create a feedback loop that actually functions. Every designer on my team uses the tool to generate the prompts for the developers. The developer doesn't have to hunt for the component; they just look at the markdown snippet, see the selector, and verify the style change. It removes the human friction. It makes the agent a teammate instead of an intern who barely understands the task.

Stop Explaining, Start Pointing

Your time is better spent building features than explaining why a div is overflowing. We built this tool because we were tired of the "no, the other button" conversation. It's 100% local, it's free, and it doesn't need a bloated account setup. It just does the job.

Open your dev tools, mark the element, and ship the prompt. Let your agent do the heavy lifting while you focus on the product. Stop guessing. Start shipping.