Works on files
Agents operate on the same Markdown you edit, with no hidden database to fall out of sync.
Agents
Delegate the busywork.
Connect a Codex or Claude agent that can inspect and edit vault files, generate learning materials, change themes, and report progress live while it works.
- Agents
- Claude Code · Codex
- Scope
- Your vault
- Progress
- Streamed live
- Logs
- JSONL trajectories
Agent · Claude Code
› Tidy my eigenvectors note and make flashcards for it
- ✓read Linear Algebra/eigenvectors.md
- ✓read Linear Algebra/span.md
- ✓edit Linear Algebra/eigenvectors.md +14 −3
- ✓write Linear Algebra/eigenvectors.cards.md (18 cards)
- ◐linking related notes…
trajectory → agent-trajectories/2026-10-09T14-02.jsonl
Illustration in the Concrete theme
How it works
Three steps.
- 1
Ask
Describe the task, e.g. restructure a chapter or draft cards for a lecture.
- 2
Watch
The agent reads and edits files while reporting each step live.
- 3
Review
Your vault is plain files, so every change is easy to inspect or revert.
Why it matters
Local trajectories
Agent runs are saved as JSONL in ~/Documents/Concrete/agent-trajectories/, outside the vault view.
Research-ready
Trajectories are kept for later analysis and possible fine-tuning. They stay on your machine.
Next — 06
Sandbox →
Run code snippets right inside a note.