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momentic.config.yaml lives in your project root and defines a project. One file covers both web and mobile. Paths and globs may be relative to the file’s location or absolute.

Configuration sources

Momentic resolves configuration from these sources, highest precedence first:
  1. CLI flags (e.g. --local-avd-id, --local-apk-path)
  2. Environment variables, including MOMENTIC_API_KEY and any variable interpolated into momentic.config.yaml
  3. momentic.config.yaml (this file). Includes the ai.classification toggle for failure classification.
  4. Organization AI settings. Failure categories and auto-heal behavior are configured in the Momentic dashboard and applied when the CLI is authenticated. These remain dashboard-managed and cannot be set in this file.
  5. CLI defaults

Example

momentic.config.yaml

Reference

Global options

Project name, file globs, retries, parallelism, video recording, Git branch settings.

Environments

environments[]: name, base URL, env variables, per-env proxy.

Environment variables

How Momentic resolves variables at runtime and the reserved variables available in every test.

Browser

browser.*: defaults for browser type, timezone, timeouts, locator behavior, AI context filtering.

AI

ai.*: per-agent versions, memory, and failure recovery.

Mobile

emulator.*: region and runtime options for remote-hosted mobile emulators.

Advanced

advanced.*: Faker seed, per-environment cache isolation.

Workspaces

Group multiple projects under one repo.

Test file globs

Glob syntax for include / exclude.

Global options

string
Project name, displayed in reports and the dashboard.
momentic.config.yaml
string[]
Globs for test and module files to include. Momentic picks up matching files automatically when you start the local editor or run tests.
momentic.config.yaml
string[]
Globs for files to exclude. Momentic always excludes node_modules, .git, and .venv.
momentic.config.yaml
number
Default number of retries per test on failure. A per-test retries value overrides this. Default: 1.
momentic.config.yaml
number | "auto"
Number of tests to run in parallel. Default for momentic run: 1.For momentic run, "auto" sizes workers from the host’s CPU cores. When the project’s browser.remoteBrowser flag is enabled, workers scale to cores * 4 - 2 (remote browsers are IO-bound); otherwise workers cap at cores (local browsers are CPU-bound).For mobile projects (momentic-mobile), pass AUTO (CLI flag only, not in momentic.config.yaml) to run as many tests in parallel as the current shard contains. Combine with --shard-index / --shard-count so each shard saturates its capacity.In momentic.config.yaml, only the lowercase form auto is valid.
momentic.config.yaml
boolean | "on-fail"
Record video for test runs. Default: on-fail.
  • true: record every run.
  • false: never record.
  • on-fail: record every run but keep video only for failures.
Browser recording requires ffmpeg, which is installed automatically by momentic install-browsers; mobile recording does not.
momentic.config.yaml
string
Directory for Visual diff golden files.
momentic.config.yaml
string
Directory for local run artifacts and result archives. Defaults to ./test-results. The --output-dir run flag overrides this setting.
momentic.config.yaml
string
Default directory for reporter output.
momentic.config.yaml
object
Configuration for network reporters. Currently supports newrelic; see Push run results to New Relic.
momentic.config.yaml
string
Main branch of the repo. When running tests on a new branch, Momentic seeds cache entries from the nearest commit on this branch. In non-CI environments, the main branch is also excluded from cache saving. See cache saving eligibility.
momentic.config.yaml
string[]
Branches considered ineligible for cache saving in non-CI environments. Prevents accidental cache overwriting on shared branches. See cache saving eligibility.
momentic.config.yaml
string
Relative path from the project root to use as the Repository root in the local editor. Display-only. Does not affect test execution or file resolution.
momentic.config.yaml