/dev/fast GTM brain

category

market profile

• text: Coding agents can produce changes faster than developers can review large diffs and understand architectural implications.
• text: Developers need to connect agent decisions, semantic changes and code architecture during review.

personas

• title: Software engineer using coding agents
  pains:

  • Large agent-generated diffs are hard to understand line by line.
  • Agent reasoning and source changes are separated across terminal output and review tools.
• title: Engineering lead or staff engineer
  pains:

  • Needs confidence that agent work matches the intended architecture and specification before merge.
  • Manual review consumes senior engineering time as generated code volume rises.
• title: Developer tooling or platform lead
  pains:

  • Wants agent activity to be reviewable while maintaining control over code and development infrastructure.

icp

• text: Software teams actively using coding agents such as Claude Code or Codex and reviewing their changes.
• text: Engineering organizations with complex codebases and high review volume where architecture-level comprehension matters.
• text: Individual developers willing to install an open-source desktop beta on macOS, Windows or Linux.

message pillars

• text: Keep human judgment central as code generation accelerates.
• text: Review changes at the architectural level.
• text: Bring interactive diagrams, diffs and agent decisions into a single review surface.
• text: Invite developers to inspect and extend an open-source tool.

objections

• objection: Why add another tool to our existing agent workflow?
  response: Whiteboard connects to existing agents and brings visualizations, semantic diffs and traces into a review canvas.
• objection: Can we inspect or extend the software?
  response: Whiteboard is MIT licensed and publishes its source; the site also describes plugin extensibility.
• objection: Can our whole team use a hosted version today?
  response: The site labels hosted Whiteboard as coming soon, so validate availability directly.

competitors

• name: Greptile
  why: Offers AI code review and codebase-aware review comments, competing for engineering review workflows.
• name: GitHub Copilot
  why: Its coding agent and pull request workflow compete for the same developer review attention.
• name: Windsurf
  why: Its coding environment incorporates agent changes and diff review within the IDE.

influencers

• name: Sid Menon
  url: https://news.ycombinator.com/item?id=49833867
  why: Founder participates in the Whiteboard Show HN launch discussion.

keywords

• AI code review canvas
• review coding agent diffs
• visualize code architecture
• agent trace review
• semantic diff tool
• open source code review tool

voice

• developer-native and playful
• opinionated about human judgment
• technical and concise

signals

• text: A team is rolling out coding agents and reports growing pull requests or review bottlenecks.
• text: A developer seeks a visual way to understand architecture and trace agent decisions before merging.

stack

• Rust
• Claude Code
• Codex
• Cursor
• MCP

pricing

motion

channels

• GitHub
• Hacker News
• Discord
• developer documentation

confidence

Founders

• name: Sid Menon
  title: Founder/CEO
  role: CEO
  bio: building the next github | prev @ Palantir, Harvard.
• name: Ketan Agrawal
  title: Founder
  role: Founder
  bio: Building an AI-native Github @ dev.fast prev: AI/ML engineering at Snowflake, Robust Intelligence, Stanford Symbolic Systems/CS
• name: Milan Bhandari
  title: Founder/CTO
  role: CTO
  bio: Building the next GitHub. Prev: Bolto (YC S23), Palantir, Harvard CS '21
• name: Alex Iansiti
  title: Founder/CPO
  role: CPO
  bio: rethinking dev tools for the era of slop code. Prev: Flowcode, Pinterest, Harvard CS '21