Run Claude Code programmatically changedheadless
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272272 --allowedTools "Bash(git diff *),Bash(git log *),Bash(git status *),Bash(git commit *)"
273273```
274274
275The `--allowedTools` flag uses [permission rule syntax](/docs/en/settings#permission-rule-syntax). The trailing ` *` enables prefix matching, so `Bash(git diff *)` allows any command starting with `git diff`. The space before `*` is important: without it, `Bash(git diff*)` would also match `git diff-index`.
275The `--allowedTools` flag uses [permission rule syntax](/docs/en/settings-reference#permission-rule-syntax). The trailing ` *` enables prefix matching, so `Bash(git diff *)` allows any command starting with `git diff`. The space before `*` is important: without it, `Bash(git diff*)` would also match `git diff-index`.
276276
277277<Note>
278278 User-invoked [skills](/docs/en/skills) and custom commands work in `-p` mode: include `/skill-name` in the prompt string and Claude Code expands it before running. Built-in commands that only run in the terminal interface, such as `/login`, aren't available in `-p` mode. `/model`, `/effort`, `/fast`, `/color`, and `/rename` accept the value as an argument, for example `/model sonnet`, and `/mcp` with no argument prints a text summary of server status; these forms require Claude Code v2.1.205 or later and follow each command's [availability notes](/docs/en/commands#all-commands). To change a setting from a `-p` invocation, pass `key=value` to `/config`, for example `/config thinking=false`.
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