Fix pattern parse errors when running rules
Learn how to implement rule patterns that include the targeted language's reserved words.
10 docs tagged with "Rules"
View all tagsHow does Semgrep assign severity levels to rules?
Understand how rule severity is determined.
Match comments with Semgrep
Semgrep's generic pattern matching mode can match comments in code files.
Match the absence of something in a file
You can approximate this behavior by matching an entire file, but excluding the desired content from the match.
Matching multiple tokens with ellipsis metavariables
Ellipsis metavariables can help with matching multiple word tokens.
Pattern syntax (Experimental)
Learn how to use Semgrep's experimental pattern syntax to search code for a specific code pattern.
Performance principles for rules and files to abide by when scanning repositories
Learn the rule and file performance principles to abide by when scanning repositories to optimize scan times.
Run all available rules on a repository
Learn how to run all available rules on your repository.
Use the Semgrep rule schema to write rules in VS Code
Use the Semgrep rule schema in VS Code to help make rule writing easier.
Why are there more Semgrep findings when the code hasn't changed?
This may be occurring because rule coverage has increased.