cx config set <name> --meta.<key>=<value>

sets a key (the config is made when it is missing); several --meta. at once are fine

--meta.a.b=v

a nested key: each dot is one level (test_session.max_keep_mib) - a key whose own name holds a dot cannot be set so

--meta.k,=a,b

a list (the comma after the key); a value with commas of its own (a cRef) is one text, with ; between its items when the reader allows it

cx config unset <name> --meta.<key>

removes a key - its default applies again

cx config show <name>

lists what is set, as --meta. lines to copy, and where its data.json is

cx config read <name>

the same for a program: it never makes the config (get does)

A server

reads some configs once, at its start (the cserver: cx app run cserver): restart it after a change; a page reads its keys on every request

A secret

(a password, a token, a key) is never shown here; set it on the machine itself - a value typed on the command line stays in the shell's history (cx utils hash_password keeps a password's digest instead)

Your own keys

an artifact that reads a config declares its keys in its _desc.yaml (configs: → the config → keys: → each key with desc, type, default, example, secret): they show here with what they do

`word "a phrase"`	in the key, its config, what it does, its default, its value here or the artifacts that read it
`-word`	in none of them
`config:task` `key:browse`	the keys of one config artifact (`cfg:` too; `*` and `?` are patterns) / whose name holds it
`art:run-ai` `art:task::`	read, declared or shown by an artifact whose name (`category::alias`) holds it - or pick it in the map on the left
`repo:cmeta-aops` `cat:tool`	read, declared or shown by an artifact of that repository / category
`is:set` `is:unset`	set on this machine / not set (its default applies)
`is:unread`	set here, read by no plugged artifact
`is:declared` `is:code` `is:docs`	known from a `configs` block of a `_desc.yaml` / the code that reads it / a `cx config set` line or a table of a README
`is:secret` `is:dynamic` `is:undocumented`	a key whose value is never shown / a key with parts the code names at run time (`<harness>`) / a key nothing describes
Letters	D declared, C read by code, R shown in a README or the docs