Exit codes

Glade uses exit status for automation. Scripts should trust the process status first, then read JSON fields when they need detail.

Code	Meaning
0	Success
1	Diagnostics, test failures, or expected validation failure
2	Usage error or invalid flags
3	Project or config discovery failure
4	Unsupported local runtime boundary
5	External dependency or toolchain failure
70	Internal Glade error
130	Interrupted by Ctrl-C

Some legacy command paths still return 1 for usage or flag errors while the full exit-code migration lands. Scripts should treat both 1 and 2 as command failure unless a command page documents a narrower contract.

Examples:

glade check --project .
echo $?

glade test --project . --json --no-progress > glade-test.json
echo $?

JSON envelopes repeat the exit code:

{
  "schemaVersion": "1.0",
  "command": "test",
  "status": "failed",
  "exitCode": 1
}