Guidon vs Plane: an alternative that remembers what was tried

Both are self-hostable boards with an MCP server. Guidon adds known dead ends, verified-vs-AI knowledge and an AGENTS.md export.

Checked 2026-11-09. Features change - see Plane's site for theirs. All comparisons

The short answer

Plane is a broad, open-source project tool - cycles, modules, many views and a large community. Guidon is narrower on purpose: a task board that keeps the reasoning and the failed attempts next to each task, and keeps what people verified apart from what AI guessed.

Choose Guidon if

  • You work with AI agents and want them to see what already failed before they start
  • You want human-verified facts kept apart from AI-written notes
  • You want your project context in your repository as AGENTS.md
  • You self-host and want every feature without plan limits

Choose Plane if

  • You need cycles, modules and many views out of the box
  • You want the larger community and ecosystem

At a glance

Guidon is better on 3 of 8 topics below; Plane is better where it says so.

TopicGuidonPlane
Self-hostingDocker Compose with plain PostgreSQL; every feature, no plan limits on your own install.Self-hostable Community Edition; some features are in paid editions.
Source codeOpen source (AGPL-3.0).Open source (AGPL-3.0).
What was already triedBetter: attempts are part of every task - approach, outcome and why it failed. An agent starting the task gets the dead ends with start_task, and is reminded to record its own.Not a built-in feature in their docs (as of 2026-11-09); attempts end up in comments, if anywhere.
Verified vs AI-guessed knowledgeBetter: project memory keeps what a person verified apart from what an AI wrote; anything an agent adds or changes waits in a review queue.No separate verified-vs-AI status in their docs (as of 2026-11-09).
Context in your repositoryBetter: export the project as AGENTS.md - approved brief, verified facts, known dead ends - for Claude Code, Codex and Cursor.No AGENTS.md export in their docs (as of 2026-11-09).
AI agents (MCP)MCP server and REST API; works with Claude, ChatGPT, Cursor, Codex and any MCP client. You bring the AI - no AI credits.MCP server and its own agents.
PlanningBoard, roadmap phases, calendar, recurring tasks.Better: cycles, modules, more views.
CommunityYoung project.Better: large community and ecosystem.

Switching from Plane

Export your Plane tasks to CSV and use Import on a Guidon board: titles, descriptions, statuses, priorities, labels, assignees and due dates are matched to your columns, with a preview of anything that doesn't match. Nothing on the board changes until you confirm.

Questions

Can I move from Plane to Guidon?

Yes - Plane's CSV export imports directly, including state, priority, labels, assignees and target dates.

Is Guidon open source like Plane?

Yes - both are AGPL-3.0. Guidon's self-hosted install has every feature, with no paid edition.

More comparisons


Try Guidon free - start a project or explore the sandbox. Self-hosted with every feature: self-hosting guide.