Repeatability
High
SQL injection patterns in PHP are structurally consistent — string concatenation with user input, unescaped variables in queries. The detection and refactoring rules are well-established and apply uniformly across files, making this highly repeatable.
Ambiguity Tolerance
High
Success criteria are concrete: every query using string concatenation with external input must be converted to a parameterized query, and a checklist must enumerate each change. There is little subjective judgment about what 'done' looks like.
Data & Tool Availability
High
The agent needs read/write access to the 12 PHP files, which is straightforward to provide. No live database connection, external APIs, or runtime context is required to perform static analysis and refactoring.
Error Cost
Medium
Incorrect refactoring could break query logic or introduce new bugs, but the output is code that must be reviewed and tested before deployment — it is not an irreversible action. Version control makes rollback trivial, keeping error cost manageable.
Human Judgment Required
Medium
Most cases are mechanical, but some dynamic query builders, stored procedure calls, or ORM hybrids may require a developer to decide the correct parameterization strategy. A human review pass before merging is strongly advisable.