# Public API surface change

Judges: changed signature or exported symbol. Questions: noul:breaking - would a caller outside the repo break?. Action: Require semver bump label.

Grade: B — A clean typed decision with either high volume or major value.. Score: 3.49.

Vertical: Software & tech.

Function: Agents & dev.

Status: Idea.

Volume: occasional.

Value: major.

Risk: moderate.

Evidence: null.

Flags: None.

- [Vertical](/verticals/saas_tech/)
- [Function](/functions/agents_dev/)
- [Prompt injection detection guardrail](/use-cases/prompt-injection-detection-guardrail/)
- [LLM output safety classification](/use-cases/llm-output-safety-classification/)
- [LLM cost-quality routing with RouteLLM](/use-cases/llm-cost-quality-routing-with-routellm/)
- [Claude Code hooks pre-tool-use validation](/use-cases/claude-code-hooks-pre-tool-use-validation/)
- [Log sensitive-data leak](/use-cases/log-sensitive-data-leak/)
- [Prompt injection scanner](/use-cases/prompt-injection-scanner/)