TRADITIONAL REVIEW · PR ↔ MAIN
One change at a time
CI, Git, and line review answer one familiar question: Does this pull request work with the current main branch?
Powered by IBM Bob
Catch conflicts between pull requests before they break your main branch.
Beef scans your open pull requests for intent-level conflicts that pass CI and git checks — but silently break logic when merged together.
Free to useOpen sourceNo install needed
Works with any GitHub repo
Detects semantic, not just syntactic conflicts
Powered by IBM Bob
Why now
AI writes code in parallel. Review systems still think one pull request at a time.
As coding agents generate more changes at once, each PR can be locally correct while carrying assumptions that collide with another. Beef cross-checks those parallel changes before they converge on main.
AI-ERA REVIEW · PR ↔ PR
Parallel changes, cross-checked
Beef adds the question that parallel development requires: Will these independently generated changes still work together?
Steps
From open-PR overload to the pairs that need to be reviewed together.
Keep scrolling ↓ — the demo advances with you.
01 / 04
Connect your repository
Paste a GitHub repository URL. Beef fetches its open pull requests and code changes — no install or CI hook required.
02 / 04
Identify candidate pairs
Static and structural signals narrow the possible combinations to pull-request pairs that may interact.
03 / 04
Analyze intent and evidence
IBM Bob compares each PR’s assumptions, behavior, and supporting code evidence to explain how the changes may affect one another.
04 / 04
Judge and prioritize conflicts
Each pair is classified as a conflict candidate, needs review, merge coordination, or no action, with the most urgent findings shown first.
How it works
Four steps from open-PR chaos to a short, explained conflict list.
Step 1
Connect your repository
Paste a GitHub repository URL. Beef fetches its open pull requests and code changes — no install or CI hook required.
Step 2
Identify candidate pairs
Static and structural signals narrow the possible combinations to pull-request pairs that may interact.
Step 3
Analyze intent and evidence
IBM Bob compares each PR’s assumptions, behavior, and supporting code evidence to explain how the changes may affect one another.
Step 4
Judge and prioritize conflicts
Each pair is classified as a conflict candidate, needs review, merge coordination, or no action, with the most urgent findings shown first.
Cases discovered
Case #1
apache/zeppelin · #5277 × #5151
A Python client and Java server silently disagreed on one API contract.
The new MCP client omits noteId for its default restart flow, while the server change requires it. Git merges cleanly and the existing client suite stays green, but the combined default request is rejected with HTTP 400.
Case #2
python/mypy · #21562 × #21531
Two PRs defined incompatible diagnostics for the same invalid usage.
PR #21562 expects one exact error message for an invalid Concatenate location, while PR #21531 changes that validation path to emit a different message and an additional note. When combined, the implementation no longer satisfies the diagnostic contract encoded by the other PR’s test.
Built for
Anyone staring down a wall of open pull requests.
[oss]
OSS maintainers
Drowning in AI-generated PRs? See which ones conflict with each other before touching them.
[ai-team]
AI-assisted engineering teams
Running Claude Code or Cursor at scale? Catch the inter-agent conflicts CI misses.
[lead]
Team leads reviewing PRs
Triage large queues by conflict risk. Know which PRs need to be reviewed together.
Get started
Scan your first repo in 60 seconds.
No install, no account required. Just a repo URL and a read-only GitHub token.
Get started →