BalloonTopic
OpenAI Build Week · Developer Tools

Your AI remembers the feature. Drift Guard checks if it is still true.

BalloonTopic gives every branch a durable context capsule. When you return, GPT-5.6 compares that memory with current Git history and surfaces stale assumptions before your coding agent continues.

Run the 30-second demo Install locally
Storage
Local JSON
Evidence
Git history
Reasoning
GPT-5.6
Flight recorder topic/payment-retry
~/company-app · feature/payment-retry zsh

Select each stage to see how static feature memory becomes a safe handoff.

Git isolates code.

AI chats isolate memory.

BalloonTopic reconnects them.

A small tool for a recurring interruption

Three commands. No new project-management system.

BalloonTopic stays beside Git instead of replacing it. The capsule is an explanation layer; commits and files remain the source of truth.

bt capture

Leave a reliable handoff

GPT-5.6 condenses the current diff, recent commits, TODOs, key files, assumptions, infrastructure, and verification commands.

Saves capsule
bt resume

Check whether memory aged

Compares captured branch and base SHAs with current Git history, then highlights shared files or contracts that changed while you were away.

Detects drift
bt explain

Understand only what matters

Produces a feature-scoped briefing: data flow, system boundaries, failure modes, human-owned decisions, and the files worth reading.

Builds understanding

AI without architectural blindness

The agent can write the code. You should still see the decisions.

Drift Guard separates routine implementation context from the details that deserve human attention: shared contracts, migrations, security boundaries, deployment configuration, and unverifiable assumptions.

Human attention report 2 checks
  1. A
    User IDs changed from integer to UUID

    The payment retry payload still assumes an integer. Read shared/user_schema.py.

  2. B
    Retry operations must stay idempotent

    Generated retry logic needs a stable operation key before it is safe to deploy.

Recommended next action Review the shared schema before continuing.

A clearly separated Build Week extension

Persistent memory existed. Drift-aware memory is new.

Before Build Week

BalloonTopic v0.2.0

  • Local topic files
  • Branch and PR context
  • Progress, TODOs, and deploy notes
  • Manual agent-maintained summaries
View preserved baseline ↗
Built for OpenAI Build Week

Drift Guard

  • GPT-5.6 structured context capsules
  • Base-branch and feature drift detection
  • Evidence-backed resume reports
  • Feature-scoped architecture briefings
Inspect the implementation ↗

Local-first by design

Try it in any Git repository.

Use GPT-5.6 with your OpenAI API key, or run the deterministic demo mode without one.

Terminal
python3 scripts/run_demo.py