# Agent Canvas

- **Event:** [Built with Opus 4.6: a Claude Code hackathon](https://cerebralvalley.ai/e/claude-code-hackathon)
- **When:** Feb 10 at 12:00 PM – Feb 17 at 10:00 AM (EST)
- **Where:** Location TBA
- **Team:** [Sriraam Raja](https://cerebralvalley.ai/u/13point5)
- **GitHub:** https://github.com/13point5/agent-canvas
- **Demo video:** https://www.youtube.com/watch?v=eSkbV279prI
- **Gallery:** https://cerebralvalley.ai/e/claude-code-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/claude-code-hackathon/hackathon/gallery/144

Agent Canvas: A Whiteboard for Coding Agents

When Claude Code investigates bugs, reviews PRs, or plans features, it dump walls of text. This turns that into visual whiteboards where it can draw diagrams, organize evidence spatially, and let humans iterate through inline comments.

1. PR Review Boards: Agents split diffs into logical chunks (not file dumps), group related changes, capture before/after screenshots with Playwright

2. Iterative Planning: Markdown shapes with Google Docs-style threaded comments let you iterate on plans inline. Agents draw freeform editable diagrams showing architecture and sequence flows.

3. Deployment Debugging: Visualize using MCP servers (Vercel, Sentry) with stack traces, terminal logs, test results as interactive components and see how the agent worked over time

4. Codebase Onboarding: Agents draw diagrams with code snippets at different abstractions, letting engineers explore interactively from high-level overview to implementation details.

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Markdown version of https://cerebralvalley.ai/e/claude-code-hackathon/hackathon/gallery/144. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt