The Agent Skills Directory

[COMMAND_EXECUTION]: The scripts/ast_grep_helper.py script executes the ast-grep (or sg) binary using subprocess.run. The executable path is resolved dynamically at runtime by checking environment variables (OMO_AST_GREP_SG_PATH, CODEX_HOME), local bin directories, and the system PATH.
[EXTERNAL_DOWNLOADS]: The install.sh and install.ps1 scripts download the ast-grep binary from its official GitHub releases page (github.com/ast-grep/ast-grep). The download source is the authoritative repository for the tool.
[PROMPT_INJECTION]: The skill presents an indirect prompt injection surface as it is designed to analyze and potentially modify arbitrary source code files from the user's project.
Ingestion points: Local source code files processed by the search, replace, and scan subcommands in scripts/ast_grep_helper.py.
Boundary markers: Absent; the tool performs structural parsing of the code directly.
Capability inventory: The skill can read local files, perform AST-aware searching, and apply code modifications to the filesystem via the ast-grep binary.
Sanitization: The helper script includes a validate function that checks search patterns for common syntax errors and regex misuses, though it does not sanitize the contents of the files being analyzed.

ast-grep