Source: https://codereviewguide.fyi/perch-vs-cursor-bugbot/ Perch vs Cursor Bugbot · reviewed 2026-10-14 # Cursor Bugbot alternative independent of the editor plan Perch gives Claude Code, Codex, Cursor and Pi the same named requirement check. Run it on the working file, fix the finding and rerun it, with direct check pricing and free unchanged cached answers. `perch check` reads working files; `perch scan` reads Git HEAD. Relevant source is sent to TypeSafe’s hosted models. The MIT CLI does not run model inference offline. [See the rule catch a regression](https://codereviewguide.fyi/perch-vs-cursor-bugbot/#check)[Install the Perch CLI](https://github.com/lakeday-org/perch/blob/main/docs/install.md) ## Perch ~50¢ per mid-sized pull request · estimate - 10¢ per 1,000 fresh rule checks - Cached checks free - No seat fees · $5 free usage credit - MIT CLI · English project rules **Cursor Bugbot**Bugbot is included in current eligible Cursor plans; legacy and usage-billed workspaces follow their plan-specific terms. Premium is listed at $30/month. Perch estimate: approximately 150 methods read, based on September–October 2026 check density. [Compare billing assumptions](https://codereviewguide.fyi/perch-vs-cursor-bugbot/#pricing). **Run it locally**Check uncommitted files **Keep the rule**Version it with the code **Read each method**Within the selected parsed scope **Pay for checks**No per-developer subscription ## 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. ### The regression ``` def refund(order, payment): payment.refund(order.total) order.status = "refunded" return order ``` 1 check, 1 broken. Refunded orders cannot be refunded again. ### The guarded method ``` def refund(order, payment): if order.status == "refunded": return order payment.refund(order.total) order.status = "refunded" return order ``` 1 check, nothing to report. Source: [public order-service checkout.py at the linked commit](https://github.com/lakeday-org/perch/blob/4af67af46d76ac99398d61c7ad0a45441760d4dc/test/fixtures/order-service/checkout.py). The captured standalone file is refund.py. [Perch command output and timestamp](https://codereviewguide.fyi/perch-vs-cursor-bugbot/refund-capture.json). 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. Published Perch capabilities and Cursor Bugbot documentation, reviewed 2026-10-14 | Capability | Perch | Cursor Bugbot | | --- | --- | --- | | Billing | 10¢ per 1,000 fresh rule checks. Cached checks free. No seat fees. | Bugbot is included in current eligible Cursor plans; legacy and usage-billed workspaces follow their plan-specific terms. Premium is listed at $30/month.[Vendor documentation ↗](https://cursor.com/pricing) | | Before commit | perch check reads the files on disk, including uncommitted edits. | Cursor 3.7+ provides /review and /review-bugbot in Cursor CLI, including committed and uncommitted branch changes.[Vendor documentation ↗](https://cursor.com/docs/cli) | | Custom requirements | English ensure rules in perch.yaml: project, file or method scope. No paid custom-rule tier. | Team rules, repository rules and .cursor/BUGBOT.md files.[Vendor documentation ↗](https://cursor.com/pricing) | | Coverage | Each parsed non-test application method in the selected scan scope is read, with caller and callee context. No method-count cap. | Repository-aware reviews with configurable reasoning effort.[Vendor documentation ↗](https://cursor.com/pricing) | | Open source | MIT-licensed CLI. Hosted model analysis is a paid service. | Commercial Cursor review service.[Vendor documentation ↗](https://cursor.com/pricing) | ## 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](https://cursor.com/docs/cli). 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](https://cursor.com/pricing). 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](https://github.com/lakeday-org/perch/blob/main/docs/rules.md) · [Working-file checks](https://github.com/lakeday-org/perch/blob/main/docs/check.md). ## What does the review bill depend on? [Compare Cursor Bugbot's billing unit and Perch's usage estimate](https://reviewpricing.fyi/cursor-bugbot/) ## Is the CLI open source and offline? Cursor Bugbot: Commercial Cursor review service. [Cursor Bugbot product or license source](https://cursor.com/pricing). 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](https://github.com/lakeday-org/perch/blob/main/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](https://reviewpricing.fyi/cursor-bugbot/) ## Make the agent check its next edit. ### Install the CLI ``` npm install -g @lakeday/perch ``` [Perch installation and quick start](https://github.com/lakeday-org/perch/blob/main/docs/install.md) ### Save a behavior rule ``` perch rules add refund-once \ --where refund.py --each method \ --ensure "Refunded orders cannot be refunded again." ``` The captured rule checks the requirement shown above. [Rule syntax and selectors](https://github.com/lakeday-org/perch/blob/main/docs/rules.md) ### Check the working file ``` perch check refund.py::refund --rules refund-once ``` Run the check after an edit and after the fix. [Working-tree check documentation](https://github.com/lakeday-org/perch/blob/main/docs/check.md) Use [perch scan](https://github.com/lakeday-org/perch/blob/main/docs/scan.md) for repository code at Git HEAD and [changed-code CI checks](https://github.com/lakeday-org/perch/blob/main/docs/ci.md) for pull requests. New model judgments can vary. Repeatability comes from cached answers for unchanged requests; a pass does not prove application correctness. ## Keep your project requirements checkable. Choose Perch when you want an MIT CLI, English behavior rules and usage pricing that stays independent of team size. Give your coding agent a saved check it can run after every relevant edit. [Install Perch](https://github.com/lakeday-org/perch/blob/main/docs/install.md) ## Sources and price details Published by Perch. Vendor facts were reviewed on 2026-10-14; plans and allowances can change. Vendor marks belong to their owners. - [cursor.com/pricing](https://cursor.com/pricing) - [cursor.com/docs/models-and-pricing](https://cursor.com/docs/models-and-pricing) - [cursor.com/docs/bugbot](https://cursor.com/docs/bugbot) - [cursor.com/docs/cli](https://cursor.com/docs/cli) - [cursor.com/docs/bugbot/legacy-pricing](https://cursor.com/docs/bugbot/legacy-pricing) Perch sources and example arithmetic - [Public CLI source](https://github.com/lakeday-org/perch) · [MIT license](https://github.com/lakeday-org/perch/blob/main/LICENSE) - [English rules](https://github.com/lakeday-org/perch/blob/main/docs/rules.md) · [Working-tree checks](https://github.com/lakeday-org/perch/blob/main/docs/check.md) · [Method scope and context](https://github.com/lakeday-org/perch/blob/main/docs/scanning.md) - [Published Perch rate and estimate assumptions](https://codereviewguide.fyi/perch-vs-cursor-bugbot/pricing-evidence.json) - [September 20, 2026 refund-rule capture](https://codereviewguide.fyi/perch-vs-cursor-bugbot/refund-capture.json) ## Compare Cursor Bugbot with other review tools - [CodeRabbit vs Cursor Bugbot](https://codereviewguide.fyi/coderabbit-vs-cursor-bugbot/) - [Greptile vs Cursor Bugbot](https://codereviewguide.fyi/greptile-vs-cursor-bugbot/) - [Qodo vs Cursor Bugbot](https://codereviewguide.fyi/qodo-vs-cursor-bugbot/) - [Macroscope vs Cursor Bugbot](https://codereviewguide.fyi/macroscope-vs-cursor-bugbot/) - [Cursor Bugbot vs Kodus](https://codereviewguide.fyi/cursor-bugbot-vs-kodus/) - [Cursor Bugbot vs Cubic](https://codereviewguide.fyi/cursor-bugbot-vs-cubic/) [Full head-to-head library and tool selector](https://codereviewguide.fyi/tool-comparisons/) **Code Review Guide** Tools & workflows. Published by Perch · © 2026 Verglas LLC. Code Review Guide is a Perch publication. Perch’s MIT license covers the CLI; hosted model analysis is a paid service. Relevant source is sent to the configured model service. [Perch CLI MIT license](https://github.com/lakeday-org/perch/blob/main/LICENSE) · [Article text](https://codereviewguide.fyi/perch-vs-cursor-bugbot/index.md) · [Resource index](https://codereviewguide.fyi/llms.txt)