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+The `CONFIG INFO` command returns metadata about configuration parameters matching
+the given patterns. This is similar to how [`COMMAND INFO`](command-info.md) returns
+metadata about commands, but for configuration parameters. It is useful for
+discovering valid values programmatically, e.g., when automated tools need to
+generate valid config values without having to maintain hardcoded enum options or numeric ranges.
+
+`CONFIG INFO` takes one or more glob-style patterns and returns an array of maps,
+one per matching configuration parameter. Each map contains:
+
+* `name`: The canonical name of the configuration parameter.
+* `type`: The type of the parameter (e.g., `bool`, `numeric`, `string`, `enum`, `special`).
+* `flags`: An array of flags associated with the parameter (e.g., `immutable`, `sensitive`, `protected`, `alias`, `module`, `multi-arg`, `debug`, `deny-loading`).
+* `alias`: The alternate name for this config (only present if one exists). Configuration parameters looked up by their alias will include `alias` in the flags array.
+* `values`: An array of valid values (only present for `enum` type configs).
+* `range`: A two-element array `[min, max]` representing the valid bounds (only present for `numeric` type configs).
+
+## Examples
+
+### Enum config
+
+```
+127.0.0.1:6379> CONFIG INFO repl-diskless-load
+1) 1) "name"
+   2) "repl-diskless-load"
+   3) "type"
+   4) "enum"
+   5) "flags"
+   6) 1) "debug"
+      2) "deny-loading"
+   7) "values"
+   8) 1) "disabled"
+      2) "on-empty-db"
+      3) "swapdb"
+      4) "flush-before-load"
+```
+
+### Numeric config
+
+```
+127.0.0.1:6379> CONFIG INFO timeout
+1) 1) "name"
+   2) "timeout"
+   3) "type"
+   4) "numeric"
+   5) "flags"
+   6) (empty array)
+   7) "range"
+   8) 1) "0"
+      2) "2147483647"
+```
+
+### Boolean config
+
+```
+127.0.0.1:6379> CONFIG INFO activedefrag
+1) 1) "name"
+   2) "activedefrag"
+   3) "type"
+   4) "bool"
+   5) "flags"
+   6) 1) "debug"
+```
+
+### Alias handling
+
+The `alias` field is only present when a config has an alternate name.
+Configuration parameters looked up by their alias include `alias` in the flags array:
+
+```
+127.0.0.1:6379> CONFIG INFO replicaof
+1) 1) "name"
+   2) "replicaof"
+   3) "type"
+   4) "special"
+   5) "flags"
+   6) 1) "immutable"
+      2) "multi-arg"
+   7) "alias"
+   8) "slaveof"
+```
+
+```
+127.0.0.1:6379> CONFIG INFO slaveof
+1) 1) "name"
+   2) "slaveof"
+   3) "type"
+   4) "special"
+   5) "flags"
+   6) 1) "immutable"
+      2) "multi-arg"
+      3) "alias"
+   7) "alias"
+   8) "replicaof"
+```
+
+### Multiple patterns
+
+`CONFIG INFO` supports multiple patterns and glob matching:
+
+```
+127.0.0.1:6379> CONFIG INFO active* timeout
+1) 1) "name"
+   2) "active-defrag-cycle-max"
+   3) "type"
+   4) "numeric"
+   ...
+2) 1) "name"
+   2) "active-defrag-cycle-min"
+   3) "type"
+   4) "numeric"
+   ...
+...
+```
+
+Results are sorted alphabetically by config name and deduplicated when multiple
+patterns match the same config.
+
+## Special configuration parameters
+
+Configuration parameters with type `special` (such as `save`, `client-output-buffer-limit`) return
+only the `name`, `type`, and `flags` fields without additional metadata about their
+expected values.