Mindwalk Replays AI Coding Sessions on 3D Codebase Maps

Mindwalk converts session logs from Claude Code and Codex into 3D maps of any codebase. The tool renders the repository as a nighttime city grid. Files that agents searched, read, or edited light up while untouched areas stay dark.

Developers run a single Go binary on their machine. All data stays local. Two view modes exist: a tree map and a terrain map. Four colors mark file status: untouched, viewed, read, and edited.

Session Playback Shows Agent Reach

The playback panel displays friction signals such as error counts and file modification totals. Timeline markers flag context compression steps, sub-agent launches, and user interventions. Keyboard shortcuts let users adjust speed or jump to edits and errors.

Mindwalk processes logs without sending anything off the device. The map updates in real time as the session replays.

Friction Signals Highlight Understanding Gaps

Error rate and edit volume panels appear beside the map. These numbers reveal where the agent struggled or made repeated changes. Timeline tags also note when context was compressed or new sub-agents started.

Users can scrub to any point and inspect the exact file state at that moment. The color overlay updates instantly with each step.

Local Binary Keeps Data on Device

Mindwalk ships as one Go executable. No account, no cloud upload, and no external API calls occur. Session data remains on the user's computer throughout analysis.

This design removes data residency concerns for teams working on proprietary code. The same binary supports both tree and terrain views without extra setup.

Four Color States Track File Contact

Untouched files stay black. Viewed files receive one shade. Read files receive another. Edited files receive the brightest color. This scale makes it clear how deeply the agent explored the task.

The distinction helps teams decide whether the agent understood the full scope or merely touched surface files.

Timeline Markers Capture Key Events

Markers on the timeline record context compression, sub-agent launches, and direct user interventions. Each marker links to the map state at that instant. Reviewers can replay from any marker to see the exact sequence that followed.

These annotations turn raw logs into a clear narrative of agent behavior.

Shortcuts Support Fast Review

Users control playback speed, skip between edit points, and jump to the next error with keyboard commands. The interface stays minimal so reviewers focus on the map rather than menus.

The tool targets developers who already run Claude Code or Codex and want visual feedback on session scope.

Next Signals to Watch

Teams will look for public case studies that quantify time saved during code reviews. They will also watch whether other agent frameworks adopt similar map exports. A third signal is any third-party plugin that adds collaboration features while preserving local processing.