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BETAGuardrails are in beta. The library, the configuration format and the CLI command can still change.

Guardrails

claude

3 guardrails, all at version v1.

GuardrailDefault severityWhat it checks
claude/cli-safe-flagserrorNo Claude CLI invocation the build executed asked for its approval step to be skipped.
claude/cli-structured-outputwarningEvery headless Claude CLI invocation the build executed asked for structured output.
claude/instructions-symlinkedwarningCLAUDE.md is a symbolic link to AGENTS.md rather than a second copy of it or nothing at all.

Every guardrail in this category is configured the same way, in the guardrails.checks array of buildnote.json. See Configuring guardrails for every option, and Guardrails to search the whole library.

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