Config File Reference¶

Full YAML schema for lmn.yaml.

Top-level fields¶

run:       # Request configuration
execution: # How many requests / how long
thresholds: # Pass/fail rules (optional)

Field	Type	Required	Description
`host`	string	Yes*	Target URL including scheme. `*` Required unless passed via `-H`
`method`	string	No	HTTP method. Default: `get`. Values: `get`, `post`, `put`, `patch`, `delete`
`headers`	map	No	Key-value headers. Values support `${ENV_VAR}` substitution
`request_template`	path	No	Path to a JSON request body template
`response_template`	path	No	Path to a JSON response extraction template
`alias`	string	No	Name of a saved request template alias
`output`	string	No	Output format. Values: `table` (default), `json`
`output_file`	path	No	Write JSON report to this file (in addition to table output)
`result_buffer`	int	No	Reservoir size for sampling. Default: `100000`. Max: `500000`
`sample_threshold`	int	No	VU count above which sampling activates. Default: `50`. Max: `1000`. Set `0` to disable

Fixed mode — request_count and concurrency together:

Field	Type	Required	Description
`request_count`	int	Yes	Total requests to send. Max: `1000000`
`concurrency`	int	Yes	Concurrent workers. Max: `1000`

Curve mode — stages only (cannot mix with fixed mode fields):

Field	Type	Required	Description
`stages`	array	Yes	List of load curve stages

Each stage:

Field	Type	Required	Description
`duration`	string	Yes	Stage duration. Format: `30s`, `2m`, `1m30s`
`target_vus`	int	Yes	Target VU count at end of stage. Max: `1000`
`ramp`	string	No	Ramp type. Values: `linear` (default), `step`

Array of threshold rules:

Field	Type	Required	Description
`metric`	string	Yes	Metric name. See Thresholds & CI Gating
`operator`	string	Yes	Comparison operator: `lt`, `lte`, `gt`, `gte`, `eq`
`value`	float	Yes	Threshold value. Must be finite. `error_rate` must be between 0.0 and 1.0