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All of v2.1.195 Home All releases olderv2.1.193 v2.1.196newer
Claude Code v2.1.195

Deny/Ask Rules for Tool Input Parameters

What

Permission rules now support matching on a specific tool input parameter value, allowing fine-grained auto-handling without a blanket allow.

Details
  • Example rules: deny Agent(model:opus) or ask Bash(run_in_background:true).
  • Tip: "Deny and ask rules can match a tool input parameter — e.g., deny Agent(model:opus) or ask Bash(run_in_background:true) — so that specific pattern is auto-handled without prompting each time."
  • The /permissions panel guidance also updated to reference this syntax.
Evidence

New permissions tip (search for "Deny and ask rules can match a tool input parameter", "/permissions, then add a Tool(param:value) deny or ask rule")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.195 →