Cursor Bugbot alternative independent of the editor plan

Catch the fix an agent removes later.

A saved requirement makes a recurring mistake checkable. In this Perch capture from September 20, 2026, the same rule flags a missing guard and passes after the guard is restored.

def refund(order, payment):
    payment.refund(order.total)
    order.status = "refunded"
    return order

def refund(order, payment):
    if order.status == "refunded":
        return order
    payment.refund(order.total)
    order.status = "refunded"
    return order

Source: public order-service checkout.py at the linked commit. The captured standalone file is refund.py. Perch command output and timestamp. This saved-rule demonstration does not measure Cursor Bugbot's detection rate.

Perch vs Cursor Bugbot: what your team runs.

Perch turns project behavior into focused checks that agents can run before committing. Use these differences to choose the review workflow and billing model your team needs.

Cursor Bugbot alternative independent of the editor plan

Choose Perch to run a named English requirement independently of the editor subscription: select the rule and method, check the working file, fix the finding and rerun. Cursor also supports local review and saved review rules; Perch adds direct fresh-check pricing and free reuse of unchanged cached answers.

Review before committing

Cursor Bugbot: Cursor 3.7+ provides /review and /review-bugbot in Cursor CLI, including committed and uncommitted branch changes. Cursor Bugbot workflow documentation.

Perch reads the current working file with perch check. For a known requirement, select its rule name and method instead of requesting another broad review. A local CLI describes where the command runs; Perch sends relevant source to hosted TypeSafe models for analysis.

How do saved requirements differ?

Cursor Bugbot: Team rules, repository rules and .cursor/BUGBOT.md files. Cursor Bugbot rule documentation.

Perch stores English ensure rules in perch.yaml or .perch/rules/. Project, file and method scopes determine what is checked. Run the named check after an edit and after the repair; a rule finding can fail the command and a CI gate. Perch rules · Working-file checks.

What does the review bill depend on?

Compare Cursor Bugbot's billing unit and Perch's usage estimate

Is the CLI open source and offline?

Cursor Bugbot: Commercial Cursor review service. Cursor Bugbot product or license source.

Perch’s CLI is MIT-licensed; hosted model inference is a separate paid service included in its published check rate. It does not run the model offline. Unchanged requests can reuse cached answers for free. Fresh judgments can vary, and a passing requirement check does not prove application correctness. Perch MIT license.

When does Cursor Bugbot fit the workflow?

Cursor 3.7+ also provides /review and /review-bugbot in Cursor CLI for local changes. Its plan entitlements and legacy usage terms determine the bill; the old transition average is not a current universal per-review price.

Estimate the review bill

Perch and Cursor Bugbot: pricing, allowances and workload calculator

Make the agent check its next edit.

npm install -g @lakeday/perch

perch rules add refund-once \
  --where refund.py --each method \
  --ensure "Refunded orders cannot be refunded again."

perch check refund.py::refund --rules refund-once

Use perch scan for repository code at Git HEAD and changed-code CI checks for pull requests. New model judgments can vary. Repeatability comes from cached answers for unchanged requests; a pass does not prove application correctness.