BitterLog

Run history for AI-built software

See what your agents actually did.

BitterLog keeps the original history behind an agent run, so you can retrace a failure, review a decision, and continue the work without relying on a summary alone.

Prompts, output, timestamps, and human notes stay connected to the run that produced them.

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Retrace a failure

Move from a short summary back to the prompt, output, and run context behind it.

Review a decision

Keep the original record and the human note explaining what changed side by side.

Continue the work

Give the next review a reliable starting point instead of asking memory to fill the gaps.

Why BitterLog

A useful history, not another dashboard.

Agent summaries are designed to compress. That is useful until a failure or handoff depends on a detail the summary left out. BitterLog keeps a path back to the source without asking you to reconstruct the run from memory.

The build failed.
Find the original output and the step that came before it.
A choice needs review.
Read the run record alongside the note that explains the change.
Work resumes tomorrow.
Start from retained context rather than a summary alone.

How it works

From the run to the moment you need.

  1. 01

    Keep the original run

    Send events or raw session files through the CLI or API. BitterLog preserves the source before anything is summarized.

  2. 02

    Return to the exact moment

    Use the run identity to retrieve the original object, including its timestamp and stable content fingerprint.

  3. 03

    Add the human decision

    Place annotations beside the retained record so later reviews include both what happened and why the work changed.

Developer surface

Built into the workflow.

Write and retrieve run history through the Bitter CLI or API. The public index and status page show which read paths are available today.

Public API index Current API status 
bitter log put --bucket agent_runs --run-id 5468 run.jsonl

bitter log list --bucket agent_runs --run-id 5468
bitter log get --bucket agent_runs --id 71 --body-only

Access

One Bitter account. No second login.

BitterLog access starts through Bitter. During launch, evidence onboarding remains request-reviewed.

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Prefer email? founders@bitterlog.com