Attemptdb

AttemptDB

**The database for what AI coding agents tried.**

[](https://github.com/nullarch/attemptdb/actions/workflows/ci.yml) [](LICENSE) [](Cargo.toml) [](spec/README.md)

Git records what changed. AttemptDB records what your agents **attempted** — every prompt, tool call, failed approach, and handoff — in a local, queryable, temporal and causal database. One binary. No account. Nothing leaves your machine.

Real output, unedited: attempt run against the sanitised public snapshot of this repository's own history. Rendered from the captured text in docs/media/demo/.

$ attempt timeline
▌ Claude Code  attemptdb  2026-08-28 18:38:17 → open  Minimal coverage  2 turns · 89 tool calls · 7 failures  ses_d0676f26
  12:02:14 turn 1   in progress  (prompt, 9 chars, content not captured)
    att_fd48e022 ✗ failed       [file_not_found] shell ×14 · subagent ×3    8m11s  conf 0.4
    att_0c14c733 ✗ failed       [file_not_found] shell ×12 · read ×2  (2 paths)   8.1s  conf 0.4
    att_79936f8c ✗ failed       [nonzero_exit] shell ×2    888ms  conf 0.4
    att_9226b528 ▶ in progress  shell ×36 · read ×2  (2 paths)         conf 0.4

$ attempt why att_a9c319da
outcome        failed
failure_class  file_not_found
claim          Attempt att_a9c319da (turn 1 #5: shell) failed with `file_not_found`; no later
               attempt retried the same paths. The failing event is ev_01a04b7f-91b6-….
confidence     0.4
uncertainty    Attempt boundaries are Tier 1 heurist