Perch — semantic code linting with JevExamples, findings, and field notes from the Perch developers.https://perchscan.com/Stop repeating yourself to your coding agenthttps://perchscan.com/blog/semantic-linting-with-jev/https://perchscan.com/blog/semantic-linting-with-jev/Put recurring code-review feedback into rules the agent checks after an edit. Powered by TypeSafe Jev.Sun, 20 Sep 2026 00:00:00 GMTForce LLMs to write better documentationhttps://perchscan.com/case-studies/bounded-documentation-rules/https://perchscan.com/case-studies/bounded-documentation-rules/Turn “stop writing vague headings” into a rule your coding agent can run before it finishes.Sun, 20 Sep 2026 00:00:00 GMTKeep generated comments in sync with the codehttps://perchscan.com/examples/code-comment-rules/https://perchscan.com/examples/code-comment-rules/Check the promises in an agent’s comments against return values, errors, and side effects.Sun, 20 Sep 2026 00:00:00 GMTKeep your business rules intact through agent editshttps://perchscan.com/examples/crm-workflow-rules/https://perchscan.com/examples/crm-workflow-rules/Require the same validation after a rewrite, even when the generated code takes a different approach.Sun, 20 Sep 2026 00:00:00 GMTCatch the bugs your coding agent introduceshttps://perchscan.com/examples/defect-scans/https://perchscan.com/examples/defect-scans/Scan generated code for broken behavior, then check the fix before committing.Sun, 20 Sep 2026 00:00:00 GMTMake your agent fix its own documentationhttps://perchscan.com/examples/documentation-rules/https://perchscan.com/examples/documentation-rules/Catch vague headings, filler paragraphs, and examples with no output before the agent finishes.Sun, 20 Sep 2026 00:00:00 GMTKeep authentication intact when agents change your APIhttps://perchscan.com/examples/endpoint-security/https://perchscan.com/examples/endpoint-security/Check that private routes still require authentication and records still require permission.Sun, 20 Sep 2026 00:00:00 GMTKeep your coding agent from undoing your fixeshttps://perchscan.com/examples/plain-english-rules/https://perchscan.com/examples/plain-english-rules/Save the requirement as a rule. Check later edits for the bug you already fixed.Sun, 20 Sep 2026 00:00:00 GMTReview your agent’s changes across the codebasehttps://perchscan.com/examples/scan-types/https://perchscan.com/examples/scan-types/Scan for defects and security issues, then narrow the run to the branch your agent changed.Sun, 20 Sep 2026 00:00:00 GMTKeep your agent from skipping permission checkshttps://perchscan.com/examples/security-scans/https://perchscan.com/examples/security-scans/Require an ownership check and recheck it after the agent changes the handler.Sun, 20 Sep 2026 00:00:00 GMTIntroducing Perchhttps://perchscan.com/blog/introducing-perch/https://perchscan.com/blog/introducing-perch/A semantic linter for bugs, security issues, and the rules your project needs.Sat, 19 Sep 2026 00:00:00 GMT